FreeCAD-macros

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# -*- coding: utf-8 -*-
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# (c) microelly 2015
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__Name__ = 'Foto'
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__Comment__ = 'Creates a real sized 300-dpi foto of the selected part from top view'
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__Author__ = 'microelly'
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__Version__ = '0.1.0'
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__Date__ = ''
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__License__ = ''
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__Web__ = ''
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__Wiki__ = ''
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__Icon__ = ''
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__Help__ = 'Select an object'
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__Status__ = 'alpha'
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__Requires__ = ''
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__Contact__ = 'https://forum.freecadweb.org/memberlist.php?mode=viewprofile&u=2364'
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__Communication__ = ''
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__Files__ = ''
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import os
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import FreeCADGui
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def foto(fn='/tmp/fc_camera_out.jpg', width=150, height=100, x=0, y=0, res=300):
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    if res <= 0:
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        # TODO: add a warning about wrong res value.
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        res = 300
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    dpmm = 11.8110 * res / 300
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    ppy = int(dpmm * height)
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    ppx = int(dpmm * width)
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    y -= 1
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    cam = '''#Inventor V2.1 ascii
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    OrthographicCamera {{
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      viewportMapping ADJUST_CAMERA
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      orientation 1 0 0  0.001
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      nearDistance 0
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      farDistance 1000
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      aspectRatio 100
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      focalDistance 1
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      position {x} {y} 999
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      height {height}
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    }}
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    '''.format(x=x, y=y, height=height)
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    FreeCADGui.activeDocument().activeView().setCamera(cam)
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    FreeCADGui.ActiveDocument.update()
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    FreeCADGui.activeDocument().activeView().saveImage(fn, ppx, ppy, '#ffffff')
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fn = "/tmp/fc_photo.jpg"
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res = 300
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sel = FreeCADGui.Selection.getSelection()
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sel0 = sel[0]
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sel0.ViewObject.LineWidth = 1
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bbox = sel0.Shape.BoundBox
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px = 0.5 * (bbox.XMin + bbox.XMax)
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py = 0.5 * (bbox.YMin + bbox.YMax)
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width = bbox.XMax - bbox.XMin
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height = bbox.YMax - bbox.YMin
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foto(fn, width, height, px, py, res)
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os.system('xdg-open {}'.format(fn))
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