0.4 replace option added to make the bitmap automatically disappear.

centerline-trace.inx

@@ -6,7 +6,8 @@
   <dependency type="executable" location="extensions">inkex.py</dependency>
   <dependency type="executable" location="extensions">centerline-trace.py</dependency>
 
-  <param name="invert" type="boolean" _gui-text="Trace bright lines. Default: dark lines.">false</param>
+  <param name="remove" type="boolean" _gui-text="Replace image with vector graphics. (Default: Place on top)">false</param>
+  <param name="invert" type="boolean" _gui-text="Trace bright lines. (Default: dark lines)">false</param>
   <param name="megapixels" type="float" min="0.1" max="99.9" precision="1" _gui-text="Limit image size in megapixels (Default: 2.0; lower is faster).">2.0</param>
   <param name="candidates" type="int" min="1" max="255" _gui-text="[1..255] Autotrace candidate runs. Use 1 with noisy photos. (Default: 1; lower is much faster)">1</param>
   <param name="filters" type="description">
@@ -18,9 +19,9 @@
   <!-- Keep in sync with chain_paths.py line 16 __version__ = ... -->
   <param name="about_version" type="description">
   
-  
+  Please report praise or strange results with the issue tracker at
   https://github.com/fablabnbg/inkscape-centerline-trace
-  Version 0.3</param>
+  Version 0.4</param>
 
   <effect needs-live-preview="false" >
     <object-type>path</object-type>

centerline-trace.py

@@ -43,9 +43,10 @@
 # 2016-05-10 jw, V0.1 -- initial draught
 # 2016-05-11 jw, V0.2 -- first usable inkscape-extension
 # 2016-05-15 jw, V0.3 -- equal spatial illumination applied. autocontrast instead of equalize. denoise.
+# 2016-05-16 jw, V0.4 -- added replace option. Made filters optional.
 #
 
-__version__ = '0.3'	# Keep in sync with chain_paths.inx ca line 22
+__version__ = '0.4'	# Keep in sync with chain_paths.inx ca line 22
 __author__ = 'Juergen Weigert <juewei@fabmail.org>'
 
 import sys, os, re, math, tempfile, subprocess, base64
@@ -99,6 +100,7 @@ class TraceCenterline(inkex.Effect):
     self.autotrace_opts=[]		 # extra options for autotrace tuning.
     self.megapixel_limit = 2.0		 # max image size (limit needed, as we have no progress indicator)
     self.invert_image = False		 # True: trace bright lines.
+    self.replace_image = False		 # True: remove image object when adding path object.
     self.candidates = 15		 # [1..255] Number of autotrace candidate runs.
     self.filter_median = 0		 # 0 to disable median filter.
     self.filter_equal_light = 0.0        # [0.0 .. 1.9] Use 1.0 with photos. Use 0.0 with perfect scans.
@@ -116,6 +118,7 @@ class TraceCenterline(inkex.Effect):
           action = 'store_const', const=True, dest='version', default=False,
           help='Just print version number ("'+__version__+'") and exit.')
     self.OptionParser.add_option('-i', '--invert', action='store', type='inkbool', default=False, help='Trace bright lines. (Default: dark lines)')
+    self.OptionParser.add_option('-r', '--remove', action='store', type='inkbool', default=False, help='Replace image with vector graphics. (Default: Place on top)')
     self.OptionParser.add_option('-m', '--megapixels', action='store',
           type='float', default=2.0, help="Limit image size in megapixels. (Lower is faster)")
     self.OptionParser.add_option('-e', '--equal-light', action='store',
@@ -301,9 +304,10 @@ class TraceCenterline(inkex.Effect):
     if self.options.version:
       print __version__
       sys.exit(0)
+    if self.options.invert      is not None: self.invert_image       = self.options.invert
+    if self.options.remove      is not None: self.replace_image      = self.options.remove
     if self.options.megapixels  is not None: self.megapixel_limit    = self.options.megapixels
     if self.options.candidates  is not None: self.candidates         = self.options.candidates
-    if self.options.invert      is not None: self.invert_image       = self.options.invert
     if self.options.despecle    is not None: self.filter_median      = self.options.despecle
     if self.options.equal_light is not None: self.filter_equal_light = self.options.equal_light
 
@@ -377,6 +381,8 @@ class TraceCenterline(inkex.Effect):
       path_attr = { 'style': simplestyle.formatStyle(style), 'd': path_d, 'transform': matrix }
       ## insert the new path object
       inkex.etree.SubElement(self.current_layer, inkex.addNS('path', 'svg'), path_attr)
+      ## delete the old image object
+      if self.replace_image: node.getparent().remove(node)
 
 
 

distribute/deb/dist.sh

@@ -4,12 +4,13 @@
 name=$1
 vers=$2
 url=http://github.com/fablabnbg/inkscape-centerline-trace
-requires="autotrace, python3-PIL | bash, python-PIL"
+requires="autotrace, python3-pil | bash, python-pil"
 
 tmp=../out
 
 [ -d $tmp ] && rm -rf $tmp/*.deb
 mkdir $tmp
+cp description-pak files
 cd files
 fakeroot checkinstall --fstrans --reset-uid --type debian \
   --install=no -y --pkgname $name --pkgversion $vers --arch all \