Add profiling script, currently profiles dropcutter

scripts/profile_pycam.py

+import cProfile
+from os.path import join
+import pstats
+import sys
+from time import time
+
+from pycam.Cutters.CylindricalCutter import CylindricalCutter
+from pycam.Gui.Console import ConsoleProgressBar
+from pycam.Importers.STLImporter import ImportModel
+from pycam.PathGenerators.DropCutter import DropCutter
+from pycam.PathProcessors.PathAccumulator import PathAccumulator
+from pycam.Toolpath import Bounds
+from pycam.Toolpath.MotionGrid import get_fixed_grid
+from pycam.Utils.locations import get_data_file_location
+
+""" Profile PyCAM doing several operations, print out the top 10
+(sorted by actual local runtime) methods.
+"""
+
+model = ImportModel(get_data_file_location(join('samples', 'pycam-textbox.stl')))
+print model.minx, model.miny, model.maxx, model.maxy
+
+
+def run_dropcutter():
+    """ Run DropCutter on standard PyCAM sample plaque """
+    progress_bar = ConsoleProgressBar(sys.stdout)
+
+    overlap = .6
+    layer_distance = 1
+    tool = CylindricalCutter(10)
+    path_generator = DropCutter(PathAccumulator())
+    bounds = Bounds(Bounds.TYPE_CUSTOM,
+                    (model.minx-5, model.miny-5, model.minz),
+                    (model.maxx+5, model.maxy+5, model.maxz))
+
+
+    low, high = bounds.get_absolute_limits()
+    line_distance = 2 * tool.radius * (1.0 - overlap)
+
+    motion_grid = get_fixed_grid((low, high), layer_distance,
+                                 line_distance, tool.radius / 4.0)
+    moves = path_generator.GenerateToolPath(tool, [model], motion_grid,
+                                            minz=low[2], maxz=high[2],
+                                            draw_callback=progress_bar.update)
+    
+
+
+if __name__ == '__main__':
+    start_time = time()
+    cProfile.run('run_dropcutter()', 'dropcutter.pyprof')
+    run_time = time() - start_time
+    print '\nDropcutter took %f seconds' % run_time
+    p = pstats.Stats('dropcutter.pyprof')
+    print 'Top ten time-consuming functions:'
+    p.sort_stats('time').print_stats(10)