FreeCAD workbench to create assembly handbooks
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import os
import tempfile
import FreeCADGui as Gui
import FreeCAD as App
class AHB_Render:
def GetResources(self):
return {"MenuText": "Render",
"ToolTip": "Render to images",
"Pixmap": ""
}
def IsActive(self):
return True
def set_render_lines(self, line_color = (0.0,0.0,0.0,0.0), background_color = (1.0,1.0,1.0,0.0)):
doc = App.activeDocument()
for obj in doc.Objects:
if obj.TypeId == 'Part::Feature':
if 'AssemblyHandbook_Stage' in obj.PropertiesList:
if 'AssemblyHandbook_RenderLines' in obj.PropertiesList and not obj.AssemblyHandbook_RenderLines:
obj.ViewObject.LineColor = background_color
else:
obj.ViewObject.LineColor = line_color
obj.ViewObject.DisplayMode = 'Flat Lines'
obj.ViewObject.ShapeMaterial.AmbientColor = (0.0, 0.0, 0.0, 0.0)
obj.ViewObject.ShapeMaterial.EmissiveColor = background_color
def set_render_outlines(self):
doc = App.activeDocument()
step = 8
r = step
g = step
b = step
for obj in doc.Objects:
if obj.TypeId == 'Part::Feature':
if 'AssemblyHandbook_Stage' in obj.PropertiesList:
obj.ViewObject.DisplayMode = 'Shaded'
obj.ViewObject.ShapeMaterial.AmbientColor = (0.0, 0.0, 0.0, 0.0)
obj.ViewObject.ShapeMaterial.DiffuseColor = (0.0, 0.0, 0.0, 0.0)
obj.ViewObject.ShapeMaterial.SpecularColor = (0.0, 0.0, 0.0, 0.0)
obj.ViewObject.ShapeMaterial.EmissiveColor = (r/255.0, g/255.0, b/255.0, 0.0)
r = r + step
if r >= 256 - step:
r = step
g = g + step
if g >= 256 - step:
g = step
b = b + step
if b >= 256 - step:
b = step
def reset_display(self):
doc = App.activeDocument()
for obj in doc.Objects:
if obj.TypeId == 'Part::Feature':
if 'AssemblyHandbook_Stage' in obj.PropertiesList:
obj.ViewObject.LineColor = (0.0, 0.0, 0.0, 0.0)
obj.ViewObject.DisplayMode = 'Flat Lines'
obj.ViewObject.ShapeMaterial.AmbientColor = (0.3, 0.3, 0.3, 0.0)
obj.ViewObject.ShapeMaterial.DiffuseColor = (1.0, 1.0, 1.0, 0.0)
obj.ViewObject.ShapeMaterial.SpecularColor = (0.5, 0.5, 0.5, 0.0)
obj.ViewObject.ShapeMaterial.EmissiveColor = (0.0, 0.0, 0.0, 0.0)
workbench = Gui.getWorkbench("AssemblyHandbookWorkbench")
workbench.context.onPartStageChanged(None)
def Activated(self):
resolution = (2000, 2000)
filename = "/home/youen/dev_linux/vhelio-render/vhelio.png"
temp_lines_file_name = tempfile.gettempdir() + "/ahb_temp_lines.png"
temp_shapes_file_name = tempfile.gettempdir() + "/ahb_temp_shapes.png"
self.set_render_outlines()
Gui.ActiveDocument.ActiveView.saveImage(temp_shapes_file_name, resolution[0] * 2, resolution[1] * 2, "#ffffff")
self.set_render_lines()
Gui.ActiveDocument.ActiveView.saveImage(temp_lines_file_name, resolution[0], resolution[1], "#ffffff")
self.reset_display()
from PIL import Image, ImageFilter
import time
lines = Image.open(temp_lines_file_name)
lines = lines.convert("L")
shapes = Image.open(temp_shapes_file_name)
startTime = time.perf_counter()
outlines = None
for x in range(0, 3):
for y in range(0, 3):
if x == 1 and y == 1: continue
kernel = [0, 0, 0, 0, 1, 0, 0, 0, 0]
kernel[y*3 + x] = -1
partial_outlines = shapes.filter(ImageFilter.Kernel((3, 3), kernel, 1, 127))
partial_outlines = partial_outlines.point(lambda p: 255 if p == 127 else 0)
partial_outlines = partial_outlines.convert("L")
partial_outlines = partial_outlines.point(lambda p: 255 if p == 255 else 0)
if outlines is None:
outlines = partial_outlines
else:
outlines.paste(partial_outlines, None, partial_outlines.point(lambda p: 255 - p))
#outlines.save("/home/youen/dev_linux/vhelio-render/vhelio-outlines.png")
#outlines = outlines.resize(lines.size, Image.BILINEAR)
#lines.paste(outlines, None, outlines.point(lambda p: 255 - p))
lines_fullres = lines.resize(outlines.size, Image.NEAREST)
lines_fullres.paste(outlines, None, outlines.point(lambda p: 255 - p))
lines = lines_fullres.resize(lines.size, Image.BILINEAR)
endTime = time.perf_counter()
print("Outline detection: " + str(round((endTime - startTime)*1000)/1000) + "s")
lines.save(filename)
from ahb_command import AHB_CommandWrapper
AHB_CommandWrapper.addGuiCommand('AHB_render', AHB_Render())