Commit 77610306 authored by Sergey Lyubka's avatar Sergey Lyubka Committed by Sergey Lyubka

Add examples for mongoose blog article

    PUBLISHED_FROM=54f54211919bb2276e02b4d10306ffa5540a9313
parent 93beff3b
PROG = server
include ../examples.mk
// Copyright (c) 2015 Cesanta Software Limited
// All rights reserved
#include "mongoose.h"
static const char *s_http_port = "8000";
static struct mg_serve_http_opts s_http_server_opts;
static void ev_handler(struct mg_connection *nc, int ev, void *p) {
if (ev == MG_EV_HTTP_REQUEST) {
mg_serve_http(nc, p, s_http_server_opts); // Serves static content
}
}
int main(void) {
struct mg_mgr mgr;
struct mg_connection *nc;
cs_stat_t st;
mg_mgr_init(&mgr, NULL);
nc = mg_bind(&mgr, s_http_port, ev_handler);
if (nc == NULL) {
fprintf(stderr, "Cannot bind to %s\n", s_http_port);
exit(1);
}
// Set up HTTP server parameters
mg_set_protocol_http_websocket(nc);
s_http_server_opts.document_root = "web_root"; // Set up web root directory
if (mg_stat(s_http_server_opts.document_root, &st) != 0) {
fprintf(stderr, "%s", "Cannot find web_root directory, exiting\n");
exit(1);
}
printf("Starting web server on port %s\n", s_http_port);
for (;;) {
mg_mgr_poll(&mgr, 1000);
}
mg_mgr_free(&mgr);
return 0;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Connected device demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="content">
<img src="logo.png" style="float:right; height: 50px; border-radius: 3px;">
<h1>Connected device demo - static content only</h1>
<p>
This page shows initial steps on how to make a device connected.
Mongoose serves static content from the <code>web_root</code>
directory. Images, CSS, HTML, JavaScript files could be dropped into the
<code>web_root</code> directory - and they'll be served happily
by Mongoose.
</p>
<p>
Below is a placeholder for the
settings section, and a real-time dashboard, which will be
implemented in the following examples.
Both settings section, and a dashboard section, could be organised
differently on this UI - for example, in different tabs. But, to
make the demonstration clearer, we show everything on one page.
</p>
<h1>Settings section</h1>
<p>Nothing here yet</p>
<h1>Dashboard section</h1>
<p>Nothing here yet</p>
</div>
</body>
</html>
* {
outline: none;
}
body {
background-color: #36c;
margin: 0;
padding: 0;
font: 16px/1.4 Helvetica, Arial, sans-serif;
}
div.content {
width: 800px;
margin: 1em auto;
padding: 2em;
background-color: #fff;
border-radius: 1em;
}
code {
background: #f0f0f0;
padding: 0 0.3em;
color: #396;
border-radius: 0.3em;
}
a:link, a:visited {
color: #69c;
text-decoration: none;
}
\ No newline at end of file
PROG = server
include ../examples.mk
// Copyright (c) 2015 Cesanta Software Limited
// All rights reserved
#include "mongoose.h"
struct device_settings {
char setting1[100];
char setting2[100];
};
static const char *s_http_port = "8000";
static struct mg_serve_http_opts s_http_server_opts;
static struct device_settings s_settings = { "value1", "value2" };
static void handle_save(struct mg_connection *nc, struct http_message *hm) {
// Get form variables and store settings values
mg_get_http_var(&hm->body, "setting1", s_settings.setting1,
sizeof(s_settings.setting1));
mg_get_http_var(&hm->body, "setting2", s_settings.setting2,
sizeof(s_settings.setting2));
// Send response
mg_printf(nc, "%s", "HTTP/1.1 302 OK\r\nLocation: /\r\n\r\n");
}
static void handle_ssi_call(struct mg_connection *nc, const char *param) {
if (strcmp(param, "setting1") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting1);
} else if (strcmp(param, "setting2") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting2);
}
}
static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
struct http_message *hm = (struct http_message *) ev_data;
switch (ev) {
case MG_EV_HTTP_REQUEST:
if (mg_vcmp(&hm->uri, "/save") == 0) {
handle_save(nc, hm);
} else {
mg_serve_http(nc, hm, s_http_server_opts); // Serve static content
}
break;
case MG_EV_SSI_CALL:
handle_ssi_call(nc, ev_data);
break;
default:
break;
}
}
int main(void) {
struct mg_mgr mgr;
struct mg_connection *nc;
cs_stat_t st;
mg_mgr_init(&mgr, NULL);
nc = mg_bind(&mgr, s_http_port, ev_handler);
if (nc == NULL) {
fprintf(stderr, "Cannot bind to %s\n", s_http_port);
exit(1);
}
// Set up HTTP server parameters
mg_set_protocol_http_websocket(nc);
s_http_server_opts.document_root = "web_root"; // Set up web root directory
if (mg_stat(s_http_server_opts.document_root, &st) != 0) {
fprintf(stderr, "%s", "Cannot find web_root directory, exiting\n");
exit(1);
}
printf("Starting web server on port %s\n", s_http_port);
for (;;) {
mg_mgr_poll(&mgr, 1000);
}
mg_mgr_free(&mgr);
return 0;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Connected device demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div class="content">
<img src="logo.png" style="float:right; height: 50px; border-radius: 3px;">
<h1>Connected device demo - settings section</h1>
<p>
This page is one of the series of examples that show how to make
devices connected with Mongoose. Here, we create a settings section
that expose some internal device variables, and allow user to change
them. They could be some stored in a database, in a file, or in
firmware RAM. In this example, we store them in RAM, and use two
variables, one integer and one string. We use SSI
<code>&lt;!--#call parameter_name --&gt;</code> directive to fetch
variable values from Mongoose.
</p>
<h1>Settings section</h1>
<form method="POST" action="/save">
<fieldset>
<legend>Device settings</legend>
<label>Setting 1:</label> <input type="text"
name="setting1" value="<!--#call setting1 -->" >
<label>Setting 2:</label> <input type="text"
name="setting2" value="<!--#call setting2 -->" >
<div>
<button type="submit">Save Settings</button>
</div>
</fieldset>
</form>
<h1>Dashboard section</h1>
<p>Nothing here yet</p>
</div>
</body>
</html>
* {
outline: none;
}
body {
background: #36c;
color: #555;
margin: 0;
padding: 0;
font: 16px/1.4 Helvetica, Arial, sans-serif;
}
div.content {
width: 800px;
margin: 1em auto;
padding: 2em;
background-color: #fff;
border-radius: 1em;
}
fieldset {
border: 1px solid #ccc;
padding: 1em;
}
fieldset legend {
font-style: italic;
color: silver;
}
fieldset label {
text-align: right;
padding: 0 1em;
}
input[type=text] {
font-size: 100%;
padding: 0.2em;
border: 1px solid #ccc;
}
button {
color: #666;
background: #eee;
border: 1px solid #ccc;
padding: 0.2em 2em;
font-size: 100%;
cursor: pointer;
margin-top: 1em;
}
button:hover {
background: #ccc;
}
code {
background: #f0f0f0;
padding: 0 0.3em;
color: #396;
border-radius: 0.3em;
}
a:link, a:visited {
color: #69c;
text-decoration: none;
}
\ No newline at end of file
PROG = server
include ../examples.mk
// Copyright (c) 2015 Cesanta Software Limited
// All rights reserved
#include "mongoose.h"
struct device_settings {
char setting1[100];
char setting2[100];
};
static const char *s_http_port = "8000";
static struct mg_serve_http_opts s_http_server_opts;
static struct device_settings s_settings = { "value1", "value2" };
static void handle_save(struct mg_connection *nc, struct http_message *hm) {
// Get form variables and store settings values
mg_get_http_var(&hm->body, "setting1", s_settings.setting1,
sizeof(s_settings.setting1));
mg_get_http_var(&hm->body, "setting2", s_settings.setting2,
sizeof(s_settings.setting2));
// Send response
mg_printf(nc, "%s", "HTTP/1.1 302 OK\r\nLocation: /\r\n\r\n");
}
static void handle_get_cpu_usage(struct mg_connection *nc) {
// Generate random value, as an example of changing CPU usage
// Getting real CPU usage depends on the OS.
int cpu_usage = (double) rand() / RAND_MAX * 100.0;
// Use chunked encoding in order to avoid calculating Content-Length
mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
// Output JSON object which holds CPU usage data
mg_printf_http_chunk(nc, "{ \"result\": %d }", cpu_usage);
// Send empty chunk, the end of response
mg_send_http_chunk(nc, "", 0);
}
static void handle_ssi_call(struct mg_connection *nc, const char *param) {
if (strcmp(param, "setting1") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting1);
} else if (strcmp(param, "setting2") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting2);
}
}
static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
struct http_message *hm = (struct http_message *) ev_data;
switch (ev) {
case MG_EV_HTTP_REQUEST:
if (mg_vcmp(&hm->uri, "/save") == 0) {
handle_save(nc, hm);
} else if (mg_vcmp(&hm->uri, "/get_cpu_usage") == 0) {
handle_get_cpu_usage(nc);
} else {
mg_serve_http(nc, hm, s_http_server_opts); // Serve static content
}
break;
case MG_EV_SSI_CALL:
handle_ssi_call(nc, ev_data);
break;
default:
break;
}
}
int main(void) {
struct mg_mgr mgr;
struct mg_connection *nc;
cs_stat_t st;
mg_mgr_init(&mgr, NULL);
nc = mg_bind(&mgr, s_http_port, ev_handler);
if (nc == NULL) {
fprintf(stderr, "Cannot bind to %s\n", s_http_port);
exit(1);
}
// Set up HTTP server parameters
mg_set_protocol_http_websocket(nc);
s_http_server_opts.document_root = "web_root"; // Set up web root directory
if (mg_stat(s_http_server_opts.document_root, &st) != 0) {
fprintf(stderr, "%s", "Cannot find web_root directory, exiting\n");
exit(1);
}
printf("Starting web server on port %s\n", s_http_port);
for (;;) {
mg_mgr_poll(&mgr, 1000);
}
mg_mgr_free(&mgr);
return 0;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Connected device demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" type="text/css" href="style.css">
<script type="text/javascript" src="jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div class="content">
<img src="logo.png" style="float:right; height: 50px; border-radius: 3px;">
<h1>Connected device demo - RESTful call</h1>
<p>
This page is one of the series of examples that show how to make
devices connected with Mongoose. Here we add a RESTful call
to the Mongoose to show CPU usage stats on a dashboard.
RESTful call is done using Jquery's <code>ajax</code> call.
</p>
<h1>Settings section</h1>
<form method="POST" action="/save">
<fieldset>
<legend>Device settings</legend>
<label>Setting 1:</label> <input type="text"
name="setting1" value="<!--#call setting1 -->" >
<label>Setting 2:</label> <input type="text"
name="setting2" value="<!--#call setting2 -->" >
<div>
<button type="submit">Save Settings</button>
</div>
</fieldset>
</form>
<h1>Dashboard section</h1>
<label>CPU usage:</label> <span id="cpu_usage">&nbsp;</span>
</div>
</body>
</html>
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$(document).ready(function() {
// Start 1-second timer to call RESTful endpoint
setInterval(function() {
$.ajax({
url: '/get_cpu_usage',
dataType: 'json',
success: function(json) {
$('#cpu_usage').text(json.result + '% ');
}
});
}, 1000);
});
* {
outline: none;
}
body {
background: #36c;
color: #555;
margin: 0;
padding: 0;
font: 16px/1.4 Helvetica, Arial, sans-serif;
}
div.content {
width: 800px;
margin: 1em auto;
padding: 2em;
background-color: #fff;
border-radius: 1em;
}
fieldset {
border: 1px solid #ccc;
padding: 1em;
}
fieldset legend {
font-style: italic;
color: silver;
}
fieldset label {
text-align: right;
padding: 0 1em;
}
input[type=text] {
font-size: 100%;
padding: 0.2em;
border: 1px solid #ccc;
}
button {
color: #666;
background: #eee;
border: 1px solid #ccc;
padding: 0.2em 2em;
font-size: 100%;
cursor: pointer;
margin-top: 1em;
}
button:hover {
background: #ccc;
}
code {
background: #f0f0f0;
padding: 0 0.3em;
color: #396;
border-radius: 0.3em;
}
a:link, a:visited {
color: #69c;
text-decoration: none;
}
PROG = server
include ../examples.mk
// Copyright (c) 2015 Cesanta Software Limited
// All rights reserved
#include "mongoose.h"
struct device_settings {
char setting1[100];
char setting2[100];
};
static const char *s_http_port = "8000";
static struct mg_serve_http_opts s_http_server_opts;
static struct device_settings s_settings = { "value1", "value2" };
static void handle_save(struct mg_connection *nc, struct http_message *hm) {
// Get form variables and store settings values
mg_get_http_var(&hm->body, "setting1", s_settings.setting1,
sizeof(s_settings.setting1));
mg_get_http_var(&hm->body, "setting2", s_settings.setting2,
sizeof(s_settings.setting2));
// Send response
mg_printf(nc, "%s", "HTTP/1.1 302 OK\r\nLocation: /\r\n\r\n");
}
static void handle_get_cpu_usage(struct mg_connection *nc) {
// Generate random value, as an example of changing CPU usage
// Getting real CPU usage depends on the OS.
int cpu_usage = (double) rand() / RAND_MAX * 100.0;
// Use chunked encoding in order to avoid calculating Content-Length
mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
// Output JSON object which holds CPU usage data
mg_printf_http_chunk(nc, "{ \"result\": %d }", cpu_usage);
// Send empty chunk, the end of response
mg_send_http_chunk(nc, "", 0);
}
static void handle_ssi_call(struct mg_connection *nc, const char *param) {
if (strcmp(param, "setting1") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting1);
} else if (strcmp(param, "setting2") == 0) {
mg_printf_html_escape(nc, "%s", s_settings.setting2);
}
}
static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
struct http_message *hm = (struct http_message *) ev_data;
switch (ev) {
case MG_EV_HTTP_REQUEST:
if (mg_vcmp(&hm->uri, "/save") == 0) {
handle_save(nc, hm);
} else if (mg_vcmp(&hm->uri, "/get_cpu_usage") == 0) {
handle_get_cpu_usage(nc);
} else {
mg_serve_http(nc, hm, s_http_server_opts); // Serve static content
}
break;
case MG_EV_SSI_CALL:
handle_ssi_call(nc, ev_data);
break;
default:
break;
}
}
static void push_data_to_all_websocket_connections(struct mg_mgr *m) {
struct mg_connection *c;
int memory_usage = (double) rand() / RAND_MAX * 100.0;
for (c = mg_next(m, NULL); c != NULL; c = mg_next(m, c)) {
if (c->flags & MG_F_IS_WEBSOCKET) {
mg_printf_websocket_frame(c, WEBSOCKET_OP_TEXT, "%d", memory_usage);
}
}
}
int main(void) {
struct mg_mgr mgr;
struct mg_connection *nc;
cs_stat_t st;
mg_mgr_init(&mgr, NULL);
nc = mg_bind(&mgr, s_http_port, ev_handler);
if (nc == NULL) {
fprintf(stderr, "Cannot bind to %s\n", s_http_port);
exit(1);
}
// Set up HTTP server parameters
mg_set_protocol_http_websocket(nc);
s_http_server_opts.document_root = "web_root"; // Set up web root directory
if (mg_stat(s_http_server_opts.document_root, &st) != 0) {
fprintf(stderr, "%s", "Cannot find web_root directory, exiting\n");
exit(1);
}
printf("Starting web server on port %s\n", s_http_port);
for (;;) {
static time_t last_time;
time_t now = time(NULL);
mg_mgr_poll(&mgr, 1000);
if (now - last_time > 0) {
push_data_to_all_websocket_connections(&mgr);
last_time = now;
}
}
mg_mgr_free(&mgr);
return 0;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Connected device demo</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="stylesheet" type="text/css" href="style.css">
<script type="text/javascript" src="jquery-1.11.3.min.js"></script>
<script src="jquery.flot.min.js"></script>
<script src="jquery.flot.time.js"></script>
<script type="text/javascript" src="main.js"></script>
</head>
<body>
<div class="content">
<img src="logo.png" style="float:right; height: 50px; border-radius: 3px;">
<h1>Connected device demo - Websocket push</h1>
<p>
This page is one of the series of examples that show how to make
devices connected with Mongoose. Here we add a real-time Websocket
server push, and update dashboard graph as data arrives.
</p>
<h1>Settings section</h1>
<form method="POST" action="/save">
<fieldset>
<legend>Device settings</legend>
<label>Setting 1:</label> <input type="text"
name="setting1" value="<!--#call setting1 -->" >
<label>Setting 2:</label> <input type="text"
name="setting2" value="<!--#call setting2 -->" >
<div>
<button type="submit">Save Settings</button>
</div>
</fieldset>
</form>
<h1>Dashboard section</h1>
<label>CPU usage:</label> <span id="cpu_usage">&nbsp;</span>
<div id="graphs"></div>
</div>
</body>
</html>
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axisToCanvasCoords(pos){var res={},i,axis,key;for(i=0;i<xaxes.length;++i){axis=xaxes[i];if(axis&&axis.used){key="x"+axis.n;if(pos[key]==null&&axis.n==1)key="x";if(pos[key]!=null){res.left=axis.p2c(pos[key]);break}}}for(i=0;i<yaxes.length;++i){axis=yaxes[i];if(axis&&axis.used){key="y"+axis.n;if(pos[key]==null&&axis.n==1)key="y";if(pos[key]!=null){res.top=axis.p2c(pos[key]);break}}}return res}function getOrCreateAxis(axes,number){if(!axes[number-1])axes[number-1]={n:number,direction:axes==xaxes?"x":"y",options:$.extend(true,{},axes==xaxes?options.xaxis:options.yaxis)};return axes[number-1]}function fillInSeriesOptions(){var neededColors=series.length,maxIndex=-1,i;for(i=0;i<series.length;++i){var sc=series[i].color;if(sc!=null){neededColors--;if(typeof sc=="number"&&sc>maxIndex){maxIndex=sc}}}if(neededColors<=maxIndex){neededColors=maxIndex+1}var c,colors=[],colorPool=options.colors,colorPoolSize=colorPool.length,variation=0;for(i=0;i<neededColors;i++){c=$.color.parse(colorPool[i%colorPoolSize]||"#666");if(i%colorPoolSize==0&&i){if(variation>=0){if(variation<.5){variation=-variation-.2}else variation=0}else variation=-variation}colors[i]=c.scale("rgb",1+variation)}var colori=0,s;for(i=0;i<series.length;++i){s=series[i];if(s.color==null){s.color=colors[colori].toString();++colori}else if(typeof s.color=="number")s.color=colors[s.color].toString();if(s.lines.show==null){var v,show=true;for(v in s)if(s[v]&&s[v].show){show=false;break}if(show)s.lines.show=true}if(s.lines.zero==null){s.lines.zero=!!s.lines.fill}s.xaxis=getOrCreateAxis(xaxes,axisNumber(s,"x"));s.yaxis=getOrCreateAxis(yaxes,axisNumber(s,"y"))}}function processData(){var topSentry=Number.POSITIVE_INFINITY,bottomSentry=Number.NEGATIVE_INFINITY,fakeInfinity=Number.MAX_VALUE,i,j,k,m,length,s,points,ps,x,y,axis,val,f,p,data,format;function updateAxis(axis,min,max){if(min<axis.datamin&&min!=-fakeInfinity)axis.datamin=min;if(max>axis.datamax&&max!=fakeInfinity)axis.datamax=max}$.each(allAxes(),function(_,axis){axis.datamin=topSentry;axis.datamax=bottomSentry;axis.used=false});for(i=0;i<series.length;++i){s=series[i];s.datapoints={points:[]};executeHooks(hooks.processRawData,[s,s.data,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];data=s.data;format=s.datapoints.format;if(!format){format=[];format.push({x:true,number:true,required:true});format.push({y:true,number:true,required:true});if(s.bars.show||s.lines.show&&s.lines.fill){var autoscale=!!(s.bars.show&&s.bars.zero||s.lines.show&&s.lines.zero);format.push({y:true,number:true,required:false,defaultValue:0,autoscale:autoscale});if(s.bars.horizontal){delete format[format.length-1].y;format[format.length-1].x=true}}s.datapoints.format=format}if(s.datapoints.pointsize!=null)continue;s.datapoints.pointsize=format.length;ps=s.datapoints.pointsize;points=s.datapoints.points;var insertSteps=s.lines.show&&s.lines.steps;s.xaxis.used=s.yaxis.used=true;for(j=k=0;j<data.length;++j,k+=ps){p=data[j];var nullify=p==null;if(!nullify){for(m=0;m<ps;++m){val=p[m];f=format[m];if(f){if(f.number&&val!=null){val=+val;if(isNaN(val))val=null;else if(val==Infinity)val=fakeInfinity;else if(val==-Infinity)val=-fakeInfinity}if(val==null){if(f.required)nullify=true;if(f.defaultValue!=null)val=f.defaultValue}}points[k+m]=val}}if(nullify){for(m=0;m<ps;++m){val=points[k+m];if(val!=null){f=format[m];if(f.autoscale!==false){if(f.x){updateAxis(s.xaxis,val,val)}if(f.y){updateAxis(s.yaxis,val,val)}}}points[k+m]=null}}else{if(insertSteps&&k>0&&points[k-ps]!=null&&points[k-ps]!=points[k]&&points[k-ps+1]!=points[k+1]){for(m=0;m<ps;++m)points[k+ps+m]=points[k+m];points[k+1]=points[k-ps+1];k+=ps}}}}for(i=0;i<series.length;++i){s=series[i];executeHooks(hooks.processDatapoints,[s,s.datapoints])}for(i=0;i<series.length;++i){s=series[i];points=s.datapoints.points;ps=s.datapoints.pointsize;format=s.datapoints.format;var xmin=topSentry,ymin=topSentry,xmax=bottomSentry,ymax=bottomSentry;for(j=0;j<points.length;j+=ps){if(points[j]==null)continue;for(m=0;m<ps;++m){val=points[j+m];f=format[m];if(!f||f.autoscale===false||val==fakeInfinity||val==-fakeInfinity)continue;if(f.x){if(val<xmin)xmin=val;if(val>xmax)xmax=val}if(f.y){if(val<ymin)ymin=val;if(val>ymax)ymax=val}}}if(s.bars.show){var delta;switch(s.bars.align){case"left":delta=0;break;case"right":delta=-s.bars.barWidth;break;default:delta=-s.bars.barWidth/2}if(s.bars.horizontal){ymin+=delta;ymax+=delta+s.bars.barWidth}else{xmin+=delta;xmax+=delta+s.bars.barWidth}}updateAxis(s.xaxis,xmin,xmax);updateAxis(s.yaxis,ymin,ymax)}$.each(allAxes(),function(_,axis){if(axis.datamin==topSentry)axis.datamin=null;if(axis.datamax==bottomSentry)axis.datamax=null})}function setupCanvases(){placeholder.css("padding",0).children().filter(function(){return!$(this).hasClass("flot-overlay")&&!$(this).hasClass("flot-base")}).remove();if(placeholder.css("position")=="static")placeholder.css("position","relative");surface=new Canvas("flot-base",placeholder);overlay=new Canvas("flot-overlay",placeholder);ctx=surface.context;octx=overlay.context;eventHolder=$(overlay.element).unbind();var existing=placeholder.data("plot");if(existing){existing.shutdown();overlay.clear()}placeholder.data("plot",plot)}function bindEvents(){if(options.grid.hoverable){eventHolder.mousemove(onMouseMove);eventHolder.bind("mouseleave",onMouseLeave)}if(options.grid.clickable)eventHolder.click(onClick);executeHooks(hooks.bindEvents,[eventHolder])}function shutdown(){if(redrawTimeout)clearTimeout(redrawTimeout);eventHolder.unbind("mousemove",onMouseMove);eventHolder.unbind("mouseleave",onMouseLeave);eventHolder.unbind("click",onClick);executeHooks(hooks.shutdown,[eventHolder])}function setTransformationHelpers(axis){function identity(x){return x}var s,m,t=axis.options.transform||identity,it=axis.options.inverseTransform;if(axis.direction=="x"){s=axis.scale=plotWidth/Math.abs(t(axis.max)-t(axis.min));m=Math.min(t(axis.max),t(axis.min))}else{s=axis.scale=plotHeight/Math.abs(t(axis.max)-t(axis.min));s=-s;m=Math.max(t(axis.max),t(axis.min))}if(t==identity)axis.p2c=function(p){return(p-m)*s};else axis.p2c=function(p){return(t(p)-m)*s};if(!it)axis.c2p=function(c){return m+c/s};else axis.c2p=function(c){return it(m+c/s)}}function measureTickLabels(axis){var opts=axis.options,ticks=axis.ticks||[],labelWidth=opts.labelWidth||0,labelHeight=opts.labelHeight||0,maxWidth=labelWidth||(axis.direction=="x"?Math.floor(surface.width/(ticks.length||1)):null),legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=opts.font||"flot-tick-label tickLabel";for(var i=0;i<ticks.length;++i){var t=ticks[i];if(!t.label)continue;var info=surface.getTextInfo(layer,t.label,font,null,maxWidth);labelWidth=Math.max(labelWidth,info.width);labelHeight=Math.max(labelHeight,info.height)}axis.labelWidth=opts.labelWidth||labelWidth;axis.labelHeight=opts.labelHeight||labelHeight}function allocateAxisBoxFirstPhase(axis){var lw=axis.labelWidth,lh=axis.labelHeight,pos=axis.options.position,isXAxis=axis.direction==="x",tickLength=axis.options.tickLength,axisMargin=options.grid.axisMargin,padding=options.grid.labelMargin,innermost=true,outermost=true,first=true,found=false;$.each(isXAxis?xaxes:yaxes,function(i,a){if(a&&(a.show||a.reserveSpace)){if(a===axis){found=true}else if(a.options.position===pos){if(found){outermost=false}else{innermost=false}}if(!found){first=false}}});if(outermost){axisMargin=0}if(tickLength==null){tickLength=first?"full":5}if(!isNaN(+tickLength))padding+=+tickLength;if(isXAxis){lh+=padding;if(pos=="bottom"){plotOffset.bottom+=lh+axisMargin;axis.box={top:surface.height-plotOffset.bottom,height:lh}}else{axis.box={top:plotOffset.top+axisMargin,height:lh};plotOffset.top+=lh+axisMargin}}else{lw+=padding;if(pos=="left"){axis.box={left:plotOffset.left+axisMargin,width:lw};plotOffset.left+=lw+axisMargin}else{plotOffset.right+=lw+axisMargin;axis.box={left:surface.width-plotOffset.right,width:lw}}}axis.position=pos;axis.tickLength=tickLength;axis.box.padding=padding;axis.innermost=innermost}function allocateAxisBoxSecondPhase(axis){if(axis.direction=="x"){axis.box.left=plotOffset.left-axis.labelWidth/2;axis.box.width=surface.width-plotOffset.left-plotOffset.right+axis.labelWidth}else{axis.box.top=plotOffset.top-axis.labelHeight/2;axis.box.height=surface.height-plotOffset.bottom-plotOffset.top+axis.labelHeight}}function adjustLayoutForThingsStickingOut(){var minMargin=options.grid.minBorderMargin,axis,i;if(minMargin==null){minMargin=0;for(i=0;i<series.length;++i)minMargin=Math.max(minMargin,2*(series[i].points.radius+series[i].points.lineWidth/2))}var margins={left:minMargin,right:minMargin,top:minMargin,bottom:minMargin};$.each(allAxes(),function(_,axis){if(axis.reserveSpace&&axis.ticks&&axis.ticks.length){if(axis.direction==="x"){margins.left=Math.max(margins.left,axis.labelWidth/2);margins.right=Math.max(margins.right,axis.labelWidth/2)}else{margins.bottom=Math.max(margins.bottom,axis.labelHeight/2);margins.top=Math.max(margins.top,axis.labelHeight/2)}}});plotOffset.left=Math.ceil(Math.max(margins.left,plotOffset.left));plotOffset.right=Math.ceil(Math.max(margins.right,plotOffset.right));plotOffset.top=Math.ceil(Math.max(margins.top,plotOffset.top));plotOffset.bottom=Math.ceil(Math.max(margins.bottom,plotOffset.bottom))}function setupGrid(){var i,axes=allAxes(),showGrid=options.grid.show;for(var a in plotOffset){var margin=options.grid.margin||0;plotOffset[a]=typeof margin=="number"?margin:margin[a]||0}executeHooks(hooks.processOffset,[plotOffset]);for(var a in plotOffset){if(typeof options.grid.borderWidth=="object"){plotOffset[a]+=showGrid?options.grid.borderWidth[a]:0}else{plotOffset[a]+=showGrid?options.grid.borderWidth:0}}$.each(axes,function(_,axis){var axisOpts=axis.options;axis.show=axisOpts.show==null?axis.used:axisOpts.show;axis.reserveSpace=axisOpts.reserveSpace==null?axis.show:axisOpts.reserveSpace;setRange(axis)});if(showGrid){var allocatedAxes=$.grep(axes,function(axis){return axis.show||axis.reserveSpace});$.each(allocatedAxes,function(_,axis){setupTickGeneration(axis);setTicks(axis);snapRangeToTicks(axis,axis.ticks);measureTickLabels(axis)});for(i=allocatedAxes.length-1;i>=0;--i)allocateAxisBoxFirstPhase(allocatedAxes[i]);adjustLayoutForThingsStickingOut();$.each(allocatedAxes,function(_,axis){allocateAxisBoxSecondPhase(axis)})}plotWidth=surface.width-plotOffset.left-plotOffset.right;plotHeight=surface.height-plotOffset.bottom-plotOffset.top;$.each(axes,function(_,axis){setTransformationHelpers(axis)});if(showGrid){drawAxisLabels()}insertLegend()}function setRange(axis){var opts=axis.options,min=+(opts.min!=null?opts.min:axis.datamin),max=+(opts.max!=null?opts.max:axis.datamax),delta=max-min;if(delta==0){var widen=max==0?1:.01;if(opts.min==null)min-=widen;if(opts.max==null||opts.min!=null)max+=widen}else{var margin=opts.autoscaleMargin;if(margin!=null){if(opts.min==null){min-=delta*margin;if(min<0&&axis.datamin!=null&&axis.datamin>=0)min=0}if(opts.max==null){max+=delta*margin;if(max>0&&axis.datamax!=null&&axis.datamax<=0)max=0}}}axis.min=min;axis.max=max}function setupTickGeneration(axis){var opts=axis.options;var noTicks;if(typeof opts.ticks=="number"&&opts.ticks>0)noTicks=opts.ticks;else noTicks=.3*Math.sqrt(axis.direction=="x"?surface.width:surface.height);var delta=(axis.max-axis.min)/noTicks,dec=-Math.floor(Math.log(delta)/Math.LN10),maxDec=opts.tickDecimals;if(maxDec!=null&&dec>maxDec){dec=maxDec}var magn=Math.pow(10,-dec),norm=delta/magn,size;if(norm<1.5){size=1}else if(norm<3){size=2;if(norm>2.25&&(maxDec==null||dec+1<=maxDec)){size=2.5;++dec}}else if(norm<7.5){size=5}else{size=10}size*=magn;if(opts.minTickSize!=null&&size<opts.minTickSize){size=opts.minTickSize}axis.delta=delta;axis.tickDecimals=Math.max(0,maxDec!=null?maxDec:dec);axis.tickSize=opts.tickSize||size;if(opts.mode=="time"&&!axis.tickGenerator){throw new Error("Time mode requires the flot.time plugin.")}if(!axis.tickGenerator){axis.tickGenerator=function(axis){var ticks=[],start=floorInBase(axis.min,axis.tickSize),i=0,v=Number.NaN,prev;do{prev=v;v=start+i*axis.tickSize;ticks.push(v);++i}while(v<axis.max&&v!=prev);return ticks};axis.tickFormatter=function(value,axis){var factor=axis.tickDecimals?Math.pow(10,axis.tickDecimals):1;var formatted=""+Math.round(value*factor)/factor;if(axis.tickDecimals!=null){var decimal=formatted.indexOf(".");var precision=decimal==-1?0:formatted.length-decimal-1;if(precision<axis.tickDecimals){return(precision?formatted:formatted+".")+(""+factor).substr(1,axis.tickDecimals-precision)}}return formatted}}if($.isFunction(opts.tickFormatter))axis.tickFormatter=function(v,axis){return""+opts.tickFormatter(v,axis)};if(opts.alignTicksWithAxis!=null){var otherAxis=(axis.direction=="x"?xaxes:yaxes)[opts.alignTicksWithAxis-1];if(otherAxis&&otherAxis.used&&otherAxis!=axis){var niceTicks=axis.tickGenerator(axis);if(niceTicks.length>0){if(opts.min==null)axis.min=Math.min(axis.min,niceTicks[0]);if(opts.max==null&&niceTicks.length>1)axis.max=Math.max(axis.max,niceTicks[niceTicks.length-1])}axis.tickGenerator=function(axis){var ticks=[],v,i;for(i=0;i<otherAxis.ticks.length;++i){v=(otherAxis.ticks[i].v-otherAxis.min)/(otherAxis.max-otherAxis.min);v=axis.min+v*(axis.max-axis.min);ticks.push(v)}return ticks};if(!axis.mode&&opts.tickDecimals==null){var extraDec=Math.max(0,-Math.floor(Math.log(axis.delta)/Math.LN10)+1),ts=axis.tickGenerator(axis);if(!(ts.length>1&&/\..*0$/.test((ts[1]-ts[0]).toFixed(extraDec))))axis.tickDecimals=extraDec}}}}function setTicks(axis){var oticks=axis.options.ticks,ticks=[];if(oticks==null||typeof oticks=="number"&&oticks>0)ticks=axis.tickGenerator(axis);else if(oticks){if($.isFunction(oticks))ticks=oticks(axis);else ticks=oticks}var i,v;axis.ticks=[];for(i=0;i<ticks.length;++i){var label=null;var t=ticks[i];if(typeof t=="object"){v=+t[0];if(t.length>1)label=t[1]}else v=+t;if(label==null)label=axis.tickFormatter(v,axis);if(!isNaN(v))axis.ticks.push({v:v,label:label})}}function snapRangeToTicks(axis,ticks){if(axis.options.autoscaleMargin&&ticks.length>0){if(axis.options.min==null)axis.min=Math.min(axis.min,ticks[0].v);if(axis.options.max==null&&ticks.length>1)axis.max=Math.max(axis.max,ticks[ticks.length-1].v)}}function draw(){surface.clear();executeHooks(hooks.drawBackground,[ctx]);var grid=options.grid;if(grid.show&&grid.backgroundColor)drawBackground();if(grid.show&&!grid.aboveData){drawGrid()}for(var i=0;i<series.length;++i){executeHooks(hooks.drawSeries,[ctx,series[i]]);drawSeries(series[i])}executeHooks(hooks.draw,[ctx]);if(grid.show&&grid.aboveData){drawGrid()}surface.render();triggerRedrawOverlay()}function extractRange(ranges,coord){var axis,from,to,key,axes=allAxes();for(var i=0;i<axes.length;++i){axis=axes[i];if(axis.direction==coord){key=coord+axis.n+"axis";if(!ranges[key]&&axis.n==1)key=coord+"axis";if(ranges[key]){from=ranges[key].from;to=ranges[key].to;break}}}if(!ranges[key]){axis=coord=="x"?xaxes[0]:yaxes[0];from=ranges[coord+"1"];to=ranges[coord+"2"]}if(from!=null&&to!=null&&from>to){var tmp=from;from=to;to=tmp}return{from:from,to:to,axis:axis}}function drawBackground(){ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.fillStyle=getColorOrGradient(options.grid.backgroundColor,plotHeight,0,"rgba(255, 255, 255, 0)");ctx.fillRect(0,0,plotWidth,plotHeight);ctx.restore()}function drawGrid(){var i,axes,bw,bc;ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var markings=options.grid.markings;if(markings){if($.isFunction(markings)){axes=plot.getAxes();axes.xmin=axes.xaxis.min;axes.xmax=axes.xaxis.max;axes.ymin=axes.yaxis.min;axes.ymax=axes.yaxis.max;markings=markings(axes)}for(i=0;i<markings.length;++i){var m=markings[i],xrange=extractRange(m,"x"),yrange=extractRange(m,"y");if(xrange.from==null)xrange.from=xrange.axis.min;if(xrange.to==null)xrange.to=xrange.axis.max;
if(yrange.from==null)yrange.from=yrange.axis.min;if(yrange.to==null)yrange.to=yrange.axis.max;if(xrange.to<xrange.axis.min||xrange.from>xrange.axis.max||yrange.to<yrange.axis.min||yrange.from>yrange.axis.max)continue;xrange.from=Math.max(xrange.from,xrange.axis.min);xrange.to=Math.min(xrange.to,xrange.axis.max);yrange.from=Math.max(yrange.from,yrange.axis.min);yrange.to=Math.min(yrange.to,yrange.axis.max);var xequal=xrange.from===xrange.to,yequal=yrange.from===yrange.to;if(xequal&&yequal){continue}xrange.from=Math.floor(xrange.axis.p2c(xrange.from));xrange.to=Math.floor(xrange.axis.p2c(xrange.to));yrange.from=Math.floor(yrange.axis.p2c(yrange.from));yrange.to=Math.floor(yrange.axis.p2c(yrange.to));if(xequal||yequal){var lineWidth=m.lineWidth||options.grid.markingsLineWidth,subPixel=lineWidth%2?.5:0;ctx.beginPath();ctx.strokeStyle=m.color||options.grid.markingsColor;ctx.lineWidth=lineWidth;if(xequal){ctx.moveTo(xrange.to+subPixel,yrange.from);ctx.lineTo(xrange.to+subPixel,yrange.to)}else{ctx.moveTo(xrange.from,yrange.to+subPixel);ctx.lineTo(xrange.to,yrange.to+subPixel)}ctx.stroke()}else{ctx.fillStyle=m.color||options.grid.markingsColor;ctx.fillRect(xrange.from,yrange.to,xrange.to-xrange.from,yrange.from-yrange.to)}}}axes=allAxes();bw=options.grid.borderWidth;for(var j=0;j<axes.length;++j){var axis=axes[j],box=axis.box,t=axis.tickLength,x,y,xoff,yoff;if(!axis.show||axis.ticks.length==0)continue;ctx.lineWidth=1;if(axis.direction=="x"){x=0;if(t=="full")y=axis.position=="top"?0:plotHeight;else y=box.top-plotOffset.top+(axis.position=="top"?box.height:0)}else{y=0;if(t=="full")x=axis.position=="left"?0:plotWidth;else x=box.left-plotOffset.left+(axis.position=="left"?box.width:0)}if(!axis.innermost){ctx.strokeStyle=axis.options.color;ctx.beginPath();xoff=yoff=0;if(axis.direction=="x")xoff=plotWidth+1;else yoff=plotHeight+1;if(ctx.lineWidth==1){if(axis.direction=="x"){y=Math.floor(y)+.5}else{x=Math.floor(x)+.5}}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff);ctx.stroke()}ctx.strokeStyle=axis.options.tickColor;ctx.beginPath();for(i=0;i<axis.ticks.length;++i){var v=axis.ticks[i].v;xoff=yoff=0;if(isNaN(v)||v<axis.min||v>axis.max||t=="full"&&(typeof bw=="object"&&bw[axis.position]>0||bw>0)&&(v==axis.min||v==axis.max))continue;if(axis.direction=="x"){x=axis.p2c(v);yoff=t=="full"?-plotHeight:t;if(axis.position=="top")yoff=-yoff}else{y=axis.p2c(v);xoff=t=="full"?-plotWidth:t;if(axis.position=="left")xoff=-xoff}if(ctx.lineWidth==1){if(axis.direction=="x")x=Math.floor(x)+.5;else y=Math.floor(y)+.5}ctx.moveTo(x,y);ctx.lineTo(x+xoff,y+yoff)}ctx.stroke()}if(bw){bc=options.grid.borderColor;if(typeof bw=="object"||typeof bc=="object"){if(typeof bw!=="object"){bw={top:bw,right:bw,bottom:bw,left:bw}}if(typeof bc!=="object"){bc={top:bc,right:bc,bottom:bc,left:bc}}if(bw.top>0){ctx.strokeStyle=bc.top;ctx.lineWidth=bw.top;ctx.beginPath();ctx.moveTo(0-bw.left,0-bw.top/2);ctx.lineTo(plotWidth,0-bw.top/2);ctx.stroke()}if(bw.right>0){ctx.strokeStyle=bc.right;ctx.lineWidth=bw.right;ctx.beginPath();ctx.moveTo(plotWidth+bw.right/2,0-bw.top);ctx.lineTo(plotWidth+bw.right/2,plotHeight);ctx.stroke()}if(bw.bottom>0){ctx.strokeStyle=bc.bottom;ctx.lineWidth=bw.bottom;ctx.beginPath();ctx.moveTo(plotWidth+bw.right,plotHeight+bw.bottom/2);ctx.lineTo(0,plotHeight+bw.bottom/2);ctx.stroke()}if(bw.left>0){ctx.strokeStyle=bc.left;ctx.lineWidth=bw.left;ctx.beginPath();ctx.moveTo(0-bw.left/2,plotHeight+bw.bottom);ctx.lineTo(0-bw.left/2,0);ctx.stroke()}}else{ctx.lineWidth=bw;ctx.strokeStyle=options.grid.borderColor;ctx.strokeRect(-bw/2,-bw/2,plotWidth+bw,plotHeight+bw)}}ctx.restore()}function drawAxisLabels(){$.each(allAxes(),function(_,axis){var box=axis.box,legacyStyles=axis.direction+"Axis "+axis.direction+axis.n+"Axis",layer="flot-"+axis.direction+"-axis flot-"+axis.direction+axis.n+"-axis "+legacyStyles,font=axis.options.font||"flot-tick-label tickLabel",tick,x,y,halign,valign;surface.removeText(layer);if(!axis.show||axis.ticks.length==0)return;for(var i=0;i<axis.ticks.length;++i){tick=axis.ticks[i];if(!tick.label||tick.v<axis.min||tick.v>axis.max)continue;if(axis.direction=="x"){halign="center";x=plotOffset.left+axis.p2c(tick.v);if(axis.position=="bottom"){y=box.top+box.padding}else{y=box.top+box.height-box.padding;valign="bottom"}}else{valign="middle";y=plotOffset.top+axis.p2c(tick.v);if(axis.position=="left"){x=box.left+box.width-box.padding;halign="right"}else{x=box.left+box.padding}}surface.addText(layer,x,y,tick.label,font,null,null,halign,valign)}})}function drawSeries(series){if(series.lines.show)drawSeriesLines(series);if(series.bars.show)drawSeriesBars(series);if(series.points.show)drawSeriesPoints(series)}function drawSeriesLines(series){function plotLine(datapoints,xoffset,yoffset,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,prevx=null,prevy=null;ctx.beginPath();for(var i=ps;i<points.length;i+=ps){var x1=points[i-ps],y1=points[i-ps+1],x2=points[i],y2=points[i+1];if(x1==null||x2==null)continue;if(y1<=y2&&y1<axisy.min){if(y2<axisy.min)continue;x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min){if(y1<axisy.min)continue;x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max){if(y2>axisy.max)continue;x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max){if(y1>axisy.max)continue;x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(x1!=prevx||y1!=prevy)ctx.moveTo(axisx.p2c(x1)+xoffset,axisy.p2c(y1)+yoffset);prevx=x2;prevy=y2;ctx.lineTo(axisx.p2c(x2)+xoffset,axisy.p2c(y2)+yoffset)}ctx.stroke()}function plotLineArea(datapoints,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize,bottom=Math.min(Math.max(0,axisy.min),axisy.max),i=0,top,areaOpen=false,ypos=1,segmentStart=0,segmentEnd=0;while(true){if(ps>0&&i>points.length+ps)break;i+=ps;var x1=points[i-ps],y1=points[i-ps+ypos],x2=points[i],y2=points[i+ypos];if(areaOpen){if(ps>0&&x1!=null&&x2==null){segmentEnd=i;ps=-ps;ypos=2;continue}if(ps<0&&i==segmentStart+ps){ctx.fill();areaOpen=false;ps=-ps;ypos=1;i=segmentStart=segmentEnd+ps;continue}}if(x1==null||x2==null)continue;if(x1<=x2&&x1<axisx.min){if(x2<axisx.min)continue;y1=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.min}else if(x2<=x1&&x2<axisx.min){if(x1<axisx.min)continue;y2=(axisx.min-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.min}if(x1>=x2&&x1>axisx.max){if(x2>axisx.max)continue;y1=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x1=axisx.max}else if(x2>=x1&&x2>axisx.max){if(x1>axisx.max)continue;y2=(axisx.max-x1)/(x2-x1)*(y2-y1)+y1;x2=axisx.max}if(!areaOpen){ctx.beginPath();ctx.moveTo(axisx.p2c(x1),axisy.p2c(bottom));areaOpen=true}if(y1>=axisy.max&&y2>=axisy.max){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.max));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.max));continue}else if(y1<=axisy.min&&y2<=axisy.min){ctx.lineTo(axisx.p2c(x1),axisy.p2c(axisy.min));ctx.lineTo(axisx.p2c(x2),axisy.p2c(axisy.min));continue}var x1old=x1,x2old=x2;if(y1<=y2&&y1<axisy.min&&y2>=axisy.min){x1=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.min}else if(y2<=y1&&y2<axisy.min&&y1>=axisy.min){x2=(axisy.min-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.min}if(y1>=y2&&y1>axisy.max&&y2<=axisy.max){x1=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y1=axisy.max}else if(y2>=y1&&y2>axisy.max&&y1<=axisy.max){x2=(axisy.max-y1)/(y2-y1)*(x2-x1)+x1;y2=axisy.max}if(x1!=x1old){ctx.lineTo(axisx.p2c(x1old),axisy.p2c(y1))}ctx.lineTo(axisx.p2c(x1),axisy.p2c(y1));ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));if(x2!=x2old){ctx.lineTo(axisx.p2c(x2),axisy.p2c(y2));ctx.lineTo(axisx.p2c(x2old),axisy.p2c(y2))}}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineJoin="round";var lw=series.lines.lineWidth,sw=series.shadowSize;if(lw>0&&sw>0){ctx.lineWidth=sw;ctx.strokeStyle="rgba(0,0,0,0.1)";var angle=Math.PI/18;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/2),Math.cos(angle)*(lw/2+sw/2),series.xaxis,series.yaxis);ctx.lineWidth=sw/2;plotLine(series.datapoints,Math.sin(angle)*(lw/2+sw/4),Math.cos(angle)*(lw/2+sw/4),series.xaxis,series.yaxis)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;var fillStyle=getFillStyle(series.lines,series.color,0,plotHeight);if(fillStyle){ctx.fillStyle=fillStyle;plotLineArea(series.datapoints,series.xaxis,series.yaxis)}if(lw>0)plotLine(series.datapoints,0,0,series.xaxis,series.yaxis);ctx.restore()}function drawSeriesPoints(series){function plotPoints(datapoints,radius,fillStyle,offset,shadow,axisx,axisy,symbol){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){var x=points[i],y=points[i+1];if(x==null||x<axisx.min||x>axisx.max||y<axisy.min||y>axisy.max)continue;ctx.beginPath();x=axisx.p2c(x);y=axisy.p2c(y)+offset;if(symbol=="circle")ctx.arc(x,y,radius,0,shadow?Math.PI:Math.PI*2,false);else symbol(ctx,x,y,radius,shadow);ctx.closePath();if(fillStyle){ctx.fillStyle=fillStyle;ctx.fill()}ctx.stroke()}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);var lw=series.points.lineWidth,sw=series.shadowSize,radius=series.points.radius,symbol=series.points.symbol;if(lw==0)lw=1e-4;if(lw>0&&sw>0){var w=sw/2;ctx.lineWidth=w;ctx.strokeStyle="rgba(0,0,0,0.1)";plotPoints(series.datapoints,radius,null,w+w/2,true,series.xaxis,series.yaxis,symbol);ctx.strokeStyle="rgba(0,0,0,0.2)";plotPoints(series.datapoints,radius,null,w/2,true,series.xaxis,series.yaxis,symbol)}ctx.lineWidth=lw;ctx.strokeStyle=series.color;plotPoints(series.datapoints,radius,getFillStyle(series.points,series.color),0,false,series.xaxis,series.yaxis,symbol);ctx.restore()}function drawBar(x,y,b,barLeft,barRight,fillStyleCallback,axisx,axisy,c,horizontal,lineWidth){var left,right,bottom,top,drawLeft,drawRight,drawTop,drawBottom,tmp;if(horizontal){drawBottom=drawRight=drawTop=true;drawLeft=false;left=b;right=x;top=y+barLeft;bottom=y+barRight;if(right<left){tmp=right;right=left;left=tmp;drawLeft=true;drawRight=false}}else{drawLeft=drawRight=drawTop=true;drawBottom=false;left=x+barLeft;right=x+barRight;bottom=b;top=y;if(top<bottom){tmp=top;top=bottom;bottom=tmp;drawBottom=true;drawTop=false}}if(right<axisx.min||left>axisx.max||top<axisy.min||bottom>axisy.max)return;if(left<axisx.min){left=axisx.min;drawLeft=false}if(right>axisx.max){right=axisx.max;drawRight=false}if(bottom<axisy.min){bottom=axisy.min;drawBottom=false}if(top>axisy.max){top=axisy.max;drawTop=false}left=axisx.p2c(left);bottom=axisy.p2c(bottom);right=axisx.p2c(right);top=axisy.p2c(top);if(fillStyleCallback){c.fillStyle=fillStyleCallback(bottom,top);c.fillRect(left,top,right-left,bottom-top)}if(lineWidth>0&&(drawLeft||drawRight||drawTop||drawBottom)){c.beginPath();c.moveTo(left,bottom);if(drawLeft)c.lineTo(left,top);else c.moveTo(left,top);if(drawTop)c.lineTo(right,top);else c.moveTo(right,top);if(drawRight)c.lineTo(right,bottom);else c.moveTo(right,bottom);if(drawBottom)c.lineTo(left,bottom);else c.moveTo(left,bottom);c.stroke()}}function drawSeriesBars(series){function plotBars(datapoints,barLeft,barRight,fillStyleCallback,axisx,axisy){var points=datapoints.points,ps=datapoints.pointsize;for(var i=0;i<points.length;i+=ps){if(points[i]==null)continue;drawBar(points[i],points[i+1],points[i+2],barLeft,barRight,fillStyleCallback,axisx,axisy,ctx,series.bars.horizontal,series.bars.lineWidth)}}ctx.save();ctx.translate(plotOffset.left,plotOffset.top);ctx.lineWidth=series.bars.lineWidth;ctx.strokeStyle=series.color;var barLeft;switch(series.bars.align){case"left":barLeft=0;break;case"right":barLeft=-series.bars.barWidth;break;default:barLeft=-series.bars.barWidth/2}var fillStyleCallback=series.bars.fill?function(bottom,top){return getFillStyle(series.bars,series.color,bottom,top)}:null;plotBars(series.datapoints,barLeft,barLeft+series.bars.barWidth,fillStyleCallback,series.xaxis,series.yaxis);ctx.restore()}function getFillStyle(filloptions,seriesColor,bottom,top){var fill=filloptions.fill;if(!fill)return null;if(filloptions.fillColor)return getColorOrGradient(filloptions.fillColor,bottom,top,seriesColor);var c=$.color.parse(seriesColor);c.a=typeof fill=="number"?fill:.4;c.normalize();return c.toString()}function insertLegend(){if(options.legend.container!=null){$(options.legend.container).html("")}else{placeholder.find(".legend").remove()}if(!options.legend.show){return}var fragments=[],entries=[],rowStarted=false,lf=options.legend.labelFormatter,s,label;for(var i=0;i<series.length;++i){s=series[i];if(s.label){label=lf?lf(s.label,s):s.label;if(label){entries.push({label:label,color:s.color})}}}if(options.legend.sorted){if($.isFunction(options.legend.sorted)){entries.sort(options.legend.sorted)}else if(options.legend.sorted=="reverse"){entries.reverse()}else{var ascending=options.legend.sorted!="descending";entries.sort(function(a,b){return a.label==b.label?0:a.label<b.label!=ascending?1:-1})}}for(var i=0;i<entries.length;++i){var entry=entries[i];if(i%options.legend.noColumns==0){if(rowStarted)fragments.push("</tr>");fragments.push("<tr>");rowStarted=true}fragments.push('<td class="legendColorBox"><div style="border:1px solid '+options.legend.labelBoxBorderColor+';padding:1px"><div style="width:4px;height:0;border:5px solid '+entry.color+';overflow:hidden"></div></div></td>'+'<td class="legendLabel">'+entry.label+"</td>")}if(rowStarted)fragments.push("</tr>");if(fragments.length==0)return;var table='<table style="font-size:smaller;color:'+options.grid.color+'">'+fragments.join("")+"</table>";if(options.legend.container!=null)$(options.legend.container).html(table);else{var pos="",p=options.legend.position,m=options.legend.margin;if(m[0]==null)m=[m,m];if(p.charAt(0)=="n")pos+="top:"+(m[1]+plotOffset.top)+"px;";else if(p.charAt(0)=="s")pos+="bottom:"+(m[1]+plotOffset.bottom)+"px;";if(p.charAt(1)=="e")pos+="right:"+(m[0]+plotOffset.right)+"px;";else if(p.charAt(1)=="w")pos+="left:"+(m[0]+plotOffset.left)+"px;";var legend=$('<div class="legend">'+table.replace('style="','style="position:absolute;'+pos+";")+"</div>").appendTo(placeholder);if(options.legend.backgroundOpacity!=0){var c=options.legend.backgroundColor;if(c==null){c=options.grid.backgroundColor;if(c&&typeof c=="string")c=$.color.parse(c);else c=$.color.extract(legend,"background-color");c.a=1;c=c.toString()}var div=legend.children();$('<div style="position:absolute;width:'+div.width()+"px;height:"+div.height()+"px;"+pos+"background-color:"+c+';"> </div>').prependTo(legend).css("opacity",options.legend.backgroundOpacity)}}}var highlights=[],redrawTimeout=null;function findNearbyItem(mouseX,mouseY,seriesFilter){var maxDistance=options.grid.mouseActiveRadius,smallestDistance=maxDistance*maxDistance+1,item=null,foundPoint=false,i,j,ps;for(i=series.length-1;i>=0;--i){if(!seriesFilter(series[i]))continue;var s=series[i],axisx=s.xaxis,axisy=s.yaxis,points=s.datapoints.points,mx=axisx.c2p(mouseX),my=axisy.c2p(mouseY),maxx=maxDistance/axisx.scale,maxy=maxDistance/axisy.scale;ps=s.datapoints.pointsize;if(axisx.options.inverseTransform)maxx=Number.MAX_VALUE;if(axisy.options.inverseTransform)maxy=Number.MAX_VALUE;if(s.lines.show||s.points.show){for(j=0;j<points.length;j+=ps){var x=points[j],y=points[j+1];if(x==null)continue;if(x-mx>maxx||x-mx<-maxx||y-my>maxy||y-my<-maxy)continue;var dx=Math.abs(axisx.p2c(x)-mouseX),dy=Math.abs(axisy.p2c(y)-mouseY),dist=dx*dx+dy*dy;if(dist<smallestDistance){smallestDistance=dist;item=[i,j/ps]}}}if(s.bars.show&&!item){var barLeft,barRight;switch(s.bars.align){case"left":barLeft=0;break;case"right":barLeft=-s.bars.barWidth;break;default:barLeft=-s.bars.barWidth/2}barRight=barLeft+s.bars.barWidth;for(j=0;j<points.length;j+=ps){var x=points[j],y=points[j+1],b=points[j+2];if(x==null)continue;if(series[i].bars.horizontal?mx<=Math.max(b,x)&&mx>=Math.min(b,x)&&my>=y+barLeft&&my<=y+barRight:mx>=x+barLeft&&mx<=x+barRight&&my>=Math.min(b,y)&&my<=Math.max(b,y))item=[i,j/ps]}}}if(item){i=item[0];j=item[1];ps=series[i].datapoints.pointsize;return{datapoint:series[i].datapoints.points.slice(j*ps,(j+1)*ps),dataIndex:j,series:series[i],seriesIndex:i}}return null}function onMouseMove(e){if(options.grid.hoverable)triggerClickHoverEvent("plothover",e,function(s){return s["hoverable"]!=false})}function onMouseLeave(e){if(options.grid.hoverable)triggerClickHoverEvent("plothover",e,function(s){return false})}function onClick(e){triggerClickHoverEvent("plotclick",e,function(s){return s["clickable"]!=false})}function triggerClickHoverEvent(eventname,event,seriesFilter){var offset=eventHolder.offset(),canvasX=event.pageX-offset.left-plotOffset.left,canvasY=event.pageY-offset.top-plotOffset.top,pos=canvasToAxisCoords({left:canvasX,top:canvasY});pos.pageX=event.pageX;pos.pageY=event.pageY;var item=findNearbyItem(canvasX,canvasY,seriesFilter);if(item){item.pageX=parseInt(item.series.xaxis.p2c(item.datapoint[0])+offset.left+plotOffset.left,10);item.pageY=parseInt(item.series.yaxis.p2c(item.datapoint[1])+offset.top+plotOffset.top,10)}if(options.grid.autoHighlight){for(var i=0;i<highlights.length;++i){var h=highlights[i];if(h.auto==eventname&&!(item&&h.series==item.series&&h.point[0]==item.datapoint[0]&&h.point[1]==item.datapoint[1]))unhighlight(h.series,h.point)}if(item)highlight(item.series,item.datapoint,eventname)}placeholder.trigger(eventname,[pos,item])}function triggerRedrawOverlay(){var t=options.interaction.redrawOverlayInterval;if(t==-1){drawOverlay();return}if(!redrawTimeout)redrawTimeout=setTimeout(drawOverlay,t)}function drawOverlay(){redrawTimeout=null;octx.save();overlay.clear();octx.translate(plotOffset.left,plotOffset.top);var i,hi;for(i=0;i<highlights.length;++i){hi=highlights[i];if(hi.series.bars.show)drawBarHighlight(hi.series,hi.point);else drawPointHighlight(hi.series,hi.point)}octx.restore();executeHooks(hooks.drawOverlay,[octx])}function highlight(s,point,auto){if(typeof s=="number")s=series[s];if(typeof point=="number"){var ps=s.datapoints.pointsize;point=s.datapoints.points.slice(ps*point,ps*(point+1))}var i=indexOfHighlight(s,point);if(i==-1){highlights.push({series:s,point:point,auto:auto});triggerRedrawOverlay()}else if(!auto)highlights[i].auto=false}function unhighlight(s,point){if(s==null&&point==null){highlights=[];triggerRedrawOverlay();return}if(typeof s=="number")s=series[s];if(typeof point=="number"){var ps=s.datapoints.pointsize;point=s.datapoints.points.slice(ps*point,ps*(point+1))}var i=indexOfHighlight(s,point);if(i!=-1){highlights.splice(i,1);triggerRedrawOverlay()}}function indexOfHighlight(s,p){for(var i=0;i<highlights.length;++i){var h=highlights[i];if(h.series==s&&h.point[0]==p[0]&&h.point[1]==p[1])return i}return-1}function drawPointHighlight(series,point){var x=point[0],y=point[1],axisx=series.xaxis,axisy=series.yaxis,highlightColor=typeof series.highlightColor==="string"?series.highlightColor:$.color.parse(series.color).scale("a",.5).toString();if(x<axisx.min||x>axisx.max||y<axisy.min||y>axisy.max)return;var pointRadius=series.points.radius+series.points.lineWidth/2;octx.lineWidth=pointRadius;octx.strokeStyle=highlightColor;var radius=1.5*pointRadius;x=axisx.p2c(x);y=axisy.p2c(y);octx.beginPath();if(series.points.symbol=="circle")octx.arc(x,y,radius,0,2*Math.PI,false);else series.points.symbol(octx,x,y,radius,false);octx.closePath();octx.stroke()}function drawBarHighlight(series,point){var highlightColor=typeof series.highlightColor==="string"?series.highlightColor:$.color.parse(series.color).scale("a",.5).toString(),fillStyle=highlightColor,barLeft;switch(series.bars.align){case"left":barLeft=0;break;case"right":barLeft=-series.bars.barWidth;break;default:barLeft=-series.bars.barWidth/2}octx.lineWidth=series.bars.lineWidth;octx.strokeStyle=highlightColor;drawBar(point[0],point[1],point[2]||0,barLeft,barLeft+series.bars.barWidth,function(){return fillStyle},series.xaxis,series.yaxis,octx,series.bars.horizontal,series.bars.lineWidth)}function getColorOrGradient(spec,bottom,top,defaultColor){if(typeof spec=="string")return spec;else{var gradient=ctx.createLinearGradient(0,top,0,bottom);for(var i=0,l=spec.colors.length;i<l;++i){var c=spec.colors[i];if(typeof c!="string"){var co=$.color.parse(defaultColor);if(c.brightness!=null)co=co.scale("rgb",c.brightness);if(c.opacity!=null)co.a*=c.opacity;c=co.toString()}gradient.addColorStop(i/(l-1),c)}return gradient}}}$.plot=function(placeholder,data,options){var plot=new Plot($(placeholder),data,options,$.plot.plugins);return plot};$.plot.version="0.8.3";$.plot.plugins=[];$.fn.plot=function(data,options){return this.each(function(){$.plot(this,data,options)})};function floorInBase(n,base){return base*Math.floor(n/base)}})(jQuery);
\ No newline at end of file
/* Pretty handling of time axes.
Copyright (c) 2007-2014 IOLA and Ole Laursen.
Licensed under the MIT license.
Set axis.mode to "time" to enable. See the section "Time series data" in
API.txt for details.
*/
(function($) {
var options = {
xaxis: {
timezone: null, // "browser" for local to the client or timezone for timezone-js
timeformat: null, // format string to use
twelveHourClock: false, // 12 or 24 time in time mode
monthNames: null // list of names of months
}
};
// round to nearby lower multiple of base
function floorInBase(n, base) {
return base * Math.floor(n / base);
}
// Returns a string with the date d formatted according to fmt.
// A subset of the Open Group's strftime format is supported.
function formatDate(d, fmt, monthNames, dayNames) {
if (typeof d.strftime == "function") {
return d.strftime(fmt);
}
var leftPad = function(n, pad) {
n = "" + n;
pad = "" + (pad == null ? "0" : pad);
return n.length == 1 ? pad + n : n;
};
var r = [];
var escape = false;
var hours = d.getHours();
var isAM = hours < 12;
if (monthNames == null) {
monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
}
if (dayNames == null) {
dayNames = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
}
var hours12;
if (hours > 12) {
hours12 = hours - 12;
} else if (hours == 0) {
hours12 = 12;
} else {
hours12 = hours;
}
for (var i = 0; i < fmt.length; ++i) {
var c = fmt.charAt(i);
if (escape) {
switch (c) {
case 'a': c = "" + dayNames[d.getDay()]; break;
case 'b': c = "" + monthNames[d.getMonth()]; break;
case 'd': c = leftPad(d.getDate()); break;
case 'e': c = leftPad(d.getDate(), " "); break;
case 'h': // For back-compat with 0.7; remove in 1.0
case 'H': c = leftPad(hours); break;
case 'I': c = leftPad(hours12); break;
case 'l': c = leftPad(hours12, " "); break;
case 'm': c = leftPad(d.getMonth() + 1); break;
case 'M': c = leftPad(d.getMinutes()); break;
// quarters not in Open Group's strftime specification
case 'q':
c = "" + (Math.floor(d.getMonth() / 3) + 1); break;
case 'S': c = leftPad(d.getSeconds()); break;
case 'y': c = leftPad(d.getFullYear() % 100); break;
case 'Y': c = "" + d.getFullYear(); break;
case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
case 'w': c = "" + d.getDay(); break;
}
r.push(c);
escape = false;
} else {
if (c == "%") {
escape = true;
} else {
r.push(c);
}
}
}
return r.join("");
}
// To have a consistent view of time-based data independent of which time
// zone the client happens to be in we need a date-like object independent
// of time zones. This is done through a wrapper that only calls the UTC
// versions of the accessor methods.
function makeUtcWrapper(d) {
function addProxyMethod(sourceObj, sourceMethod, targetObj, targetMethod) {
sourceObj[sourceMethod] = function() {
return targetObj[targetMethod].apply(targetObj, arguments);
};
};
var utc = {
date: d
};
// support strftime, if found
if (d.strftime != undefined) {
addProxyMethod(utc, "strftime", d, "strftime");
}
addProxyMethod(utc, "getTime", d, "getTime");
addProxyMethod(utc, "setTime", d, "setTime");
var props = ["Date", "Day", "FullYear", "Hours", "Milliseconds", "Minutes", "Month", "Seconds"];
for (var p = 0; p < props.length; p++) {
addProxyMethod(utc, "get" + props[p], d, "getUTC" + props[p]);
addProxyMethod(utc, "set" + props[p], d, "setUTC" + props[p]);
}
return utc;
};
// select time zone strategy. This returns a date-like object tied to the
// desired timezone
function dateGenerator(ts, opts) {
if (opts.timezone == "browser") {
return new Date(ts);
} else if (!opts.timezone || opts.timezone == "utc") {
return makeUtcWrapper(new Date(ts));
} else if (typeof timezoneJS != "undefined" && typeof timezoneJS.Date != "undefined") {
var d = new timezoneJS.Date();
// timezone-js is fickle, so be sure to set the time zone before
// setting the time.
d.setTimezone(opts.timezone);
d.setTime(ts);
return d;
} else {
return makeUtcWrapper(new Date(ts));
}
}
// map of app. size of time units in milliseconds
var timeUnitSize = {
"second": 1000,
"minute": 60 * 1000,
"hour": 60 * 60 * 1000,
"day": 24 * 60 * 60 * 1000,
"month": 30 * 24 * 60 * 60 * 1000,
"quarter": 3 * 30 * 24 * 60 * 60 * 1000,
"year": 365.2425 * 24 * 60 * 60 * 1000
};
// the allowed tick sizes, after 1 year we use
// an integer algorithm
var baseSpec = [
[1, "second"], [2, "second"], [5, "second"], [10, "second"],
[30, "second"],
[1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
[30, "minute"],
[1, "hour"], [2, "hour"], [4, "hour"],
[8, "hour"], [12, "hour"],
[1, "day"], [2, "day"], [3, "day"],
[0.25, "month"], [0.5, "month"], [1, "month"],
[2, "month"]
];
// we don't know which variant(s) we'll need yet, but generating both is
// cheap
var specMonths = baseSpec.concat([[3, "month"], [6, "month"],
[1, "year"]]);
var specQuarters = baseSpec.concat([[1, "quarter"], [2, "quarter"],
[1, "year"]]);
function init(plot) {
plot.hooks.processOptions.push(function (plot, options) {
$.each(plot.getAxes(), function(axisName, axis) {
var opts = axis.options;
if (opts.mode == "time") {
axis.tickGenerator = function(axis) {
var ticks = [];
var d = dateGenerator(axis.min, opts);
var minSize = 0;
// make quarter use a possibility if quarters are
// mentioned in either of these options
var spec = (opts.tickSize && opts.tickSize[1] ===
"quarter") ||
(opts.minTickSize && opts.minTickSize[1] ===
"quarter") ? specQuarters : specMonths;
if (opts.minTickSize != null) {
if (typeof opts.tickSize == "number") {
minSize = opts.tickSize;
} else {
minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
}
}
for (var i = 0; i < spec.length - 1; ++i) {
if (axis.delta < (spec[i][0] * timeUnitSize[spec[i][1]]
+ spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
&& spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) {
break;
}
}
var size = spec[i][0];
var unit = spec[i][1];
// special-case the possibility of several years
if (unit == "year") {
// if given a minTickSize in years, just use it,
// ensuring that it's an integer
if (opts.minTickSize != null && opts.minTickSize[1] == "year") {
size = Math.floor(opts.minTickSize[0]);
} else {
var magn = Math.pow(10, Math.floor(Math.log(axis.delta / timeUnitSize.year) / Math.LN10));
var norm = (axis.delta / timeUnitSize.year) / magn;
if (norm < 1.5) {
size = 1;
} else if (norm < 3) {
size = 2;
} else if (norm < 7.5) {
size = 5;
} else {
size = 10;
}
size *= magn;
}
// minimum size for years is 1
if (size < 1) {
size = 1;
}
}
axis.tickSize = opts.tickSize || [size, unit];
var tickSize = axis.tickSize[0];
unit = axis.tickSize[1];
var step = tickSize * timeUnitSize[unit];
if (unit == "second") {
d.setSeconds(floorInBase(d.getSeconds(), tickSize));
} else if (unit == "minute") {
d.setMinutes(floorInBase(d.getMinutes(), tickSize));
} else if (unit == "hour") {
d.setHours(floorInBase(d.getHours(), tickSize));
} else if (unit == "month") {
d.setMonth(floorInBase(d.getMonth(), tickSize));
} else if (unit == "quarter") {
d.setMonth(3 * floorInBase(d.getMonth() / 3,
tickSize));
} else if (unit == "year") {
d.setFullYear(floorInBase(d.getFullYear(), tickSize));
}
// reset smaller components
d.setMilliseconds(0);
if (step >= timeUnitSize.minute) {
d.setSeconds(0);
}
if (step >= timeUnitSize.hour) {
d.setMinutes(0);
}
if (step >= timeUnitSize.day) {
d.setHours(0);
}
if (step >= timeUnitSize.day * 4) {
d.setDate(1);
}
if (step >= timeUnitSize.month * 2) {
d.setMonth(floorInBase(d.getMonth(), 3));
}
if (step >= timeUnitSize.quarter * 2) {
d.setMonth(floorInBase(d.getMonth(), 6));
}
if (step >= timeUnitSize.year) {
d.setMonth(0);
}
var carry = 0;
var v = Number.NaN;
var prev;
do {
prev = v;
v = d.getTime();
ticks.push(v);
if (unit == "month" || unit == "quarter") {
if (tickSize < 1) {
// a bit complicated - we'll divide the
// month/quarter up but we need to take
// care of fractions so we don't end up in
// the middle of a day
d.setDate(1);
var start = d.getTime();
d.setMonth(d.getMonth() +
(unit == "quarter" ? 3 : 1));
var end = d.getTime();
d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
carry = d.getHours();
d.setHours(0);
} else {
d.setMonth(d.getMonth() +
tickSize * (unit == "quarter" ? 3 : 1));
}
} else if (unit == "year") {
d.setFullYear(d.getFullYear() + tickSize);
} else {
d.setTime(v + step);
}
} while (v < axis.max && v != prev);
return ticks;
};
axis.tickFormatter = function (v, axis) {
var d = dateGenerator(v, axis.options);
// first check global format
if (opts.timeformat != null) {
return formatDate(d, opts.timeformat, opts.monthNames, opts.dayNames);
}
// possibly use quarters if quarters are mentioned in
// any of these places
var useQuarters = (axis.options.tickSize &&
axis.options.tickSize[1] == "quarter") ||
(axis.options.minTickSize &&
axis.options.minTickSize[1] == "quarter");
var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
var span = axis.max - axis.min;
var suffix = (opts.twelveHourClock) ? " %p" : "";
var hourCode = (opts.twelveHourClock) ? "%I" : "%H";
var fmt;
if (t < timeUnitSize.minute) {
fmt = hourCode + ":%M:%S" + suffix;
} else if (t < timeUnitSize.day) {
if (span < 2 * timeUnitSize.day) {
fmt = hourCode + ":%M" + suffix;
} else {
fmt = "%b %d " + hourCode + ":%M" + suffix;
}
} else if (t < timeUnitSize.month) {
fmt = "%b %d";
} else if ((useQuarters && t < timeUnitSize.quarter) ||
(!useQuarters && t < timeUnitSize.year)) {
if (span < timeUnitSize.year) {
fmt = "%b";
} else {
fmt = "%b %Y";
}
} else if (useQuarters && t < timeUnitSize.year) {
if (span < timeUnitSize.year) {
fmt = "Q%q";
} else {
fmt = "Q%q %Y";
}
} else {
fmt = "%Y";
}
var rt = formatDate(d, fmt, opts.monthNames, opts.dayNames);
return rt;
};
}
});
});
}
$.plot.plugins.push({
init: init,
options: options,
name: 'time',
version: '1.0'
});
// Time-axis support used to be in Flot core, which exposed the
// formatDate function on the plot object. Various plugins depend
// on the function, so we need to re-expose it here.
$.plot.formatDate = formatDate;
$.plot.dateGenerator = dateGenerator;
})(jQuery);
$(document).ready(function() {
// Start 1-second timer to call RESTful endpoint
setInterval(function() {
$.ajax({
url: '/get_cpu_usage',
dataType: 'json',
success: function(json) {
$('#cpu_usage').text(json.result + '% ');
}
});
}, 1000);
// Initialize graph
var $c = $('<div class="graph"/>').appendTo('#graphs');
var dur = 120;
var past = Date.now() - dur * 1000;
var options = {
lines: {
fill: true,
lineWidth: 0,
fillColor: {colors: [ { opacity: 0 }, { opacity: 1 } ] }
},
grid: { borderWidth: 1, borderColor: '#ccc'},
xaxis: { mode: 'time', ticks: 5 },
legend: { labelBoxBorderColor: '#fff' },
colors: [ '#fec', '#396', '#e39', '9e2' ],
hooks: {
draw: [function(plot, canvas) {
canvas.font = '13px sans-serif';
canvas.fillStyle = '#aaa';
canvas.fillText('Resource Usage', 35, 25);
}]
}
};
var plot = $.plot($c, [], options);
var updateGraph = function(counter) {
var data = plot.getData();
var now = Date.now();
var oldest = now - dur * 1000;
data[0] = {
show: false,
data: [[oldest, null], [now, null]]
};
console.log(data);
// Remove old points
$.each(data, function(di, d) {
while (d.data.length > 0 && d.data[0][0] < oldest) {
d.data.shift();
}
});
// Add new points
var new_datapoint = [now, counter];
if (data[1]) {
data[1].label = 'memory';
data[1].data.push(new_datapoint);
} else {
data[1] = [{ data: [new_datapoint] }];
}
// Redraw the graph
plot.setData(data);
plot.setupGrid();
plot.draw();
};
// Create Websocket connection. For simplicity, no reconnect logic is here.
var ws = new WebSocket('ws://' + location.host);
ws.onmessage = function(ev) {
updateGraph(ev.data);
};
});
* {
outline: none;
}
body {
background: #36c;
color: #555;
margin: 0;
padding: 0;
font: 16px/1.4 Helvetica, Arial, sans-serif;
}
div.content {
width: 800px;
margin: 1em auto;
padding: 2em;
background-color: #fff;
border-radius: 1em;
}
fieldset {
border: 1px solid #ccc;
padding: 1em;
}
fieldset legend {
font-style: italic;
color: silver;
}
fieldset label {
text-align: right;
padding: 0 1em;
}
input[type=text] {
font-size: 100%;
padding: 0.2em;
border: 1px solid #ccc;
}
button {
color: #666;
background: #eee;
border: 1px solid #ccc;
padding: 0.2em 2em;
font-size: 100%;
cursor: pointer;
margin-top: 1em;
}
button:hover {
background: #ccc;
}
code {
background: #f0f0f0;
padding: 0 0.3em;
color: #396;
border-radius: 0.3em;
}
a:link, a:visited {
color: #69c;
text-decoration: none;
}
#graphs {
margin-top: 1em;
}
.graph {
min-height: 12em;
border: 0px solid #ccc;
position: relative;
margin: 0 1em 1em 0;
width: 36em;
display: inline-block;
}
.graph_title {
position: absolute;
top: 0.5em; left: 1em;
color: #ccc;
font-weight: bold;
z-index: 999;
}
SOURCES = $(PROG).c ../../mongoose.c
CFLAGS = -W -Wall -I../.. -Wno-unused-function $(CFLAGS_EXTRA) $(MODULE_CFLAGS)
all: $(PROG)
$(PROG): $(SOURCES)
$(CC) $(SOURCES) -o $@ $(CFLAGS)
$(PROG).exe: $(SOURCES)
cl $(SOURCES) /I../.. /MD /Fe$@
clean:
rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
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