improvements in exportDRAWEXE
fix Draft._clone output
export Shape2DViews
export Part::MultiFuse with single boolean operation like done in c2ce8f5eba
make DRAWEXE ouput more readable
* omit unessary parameters of spheres, cylinders, cones and tori
* denormalize the rotation axis in placements
* use the extension .tcl for the output
This commit is contained in:
Sebastian Hoogen
wmayer
parent
16c1dbd25d
commit
1846087723
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@ -26,5 +26,5 @@
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#***************************************************************************/
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import FreeCAD
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FreeCAD.addExportType("DRAWEXE source (*.draw)","exportDRAWEXE")
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FreeCAD.addExportType("DRAWEXE script (*.tcl)","exportDRAWEXE")
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@ -32,6 +32,15 @@ if open.__module__ == '__builtin__':
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# Part:: Wedge, Helix, Spiral, Elipsoid
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# Draft: Rectangle, BSpline, BezCurve
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def quaternionToString(rot):
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def shorthexfloat(f):
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s=f.hex()
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mantisse, exponent = f.hex().split('p',1)
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return '%sp%s' % (mantisse.rstrip('0'),exponent)
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x,y,z,w=rot.Q
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return 'q=%s+%s*i+%s*j+%s*k' % (shorthexfloat(w),shorthexfloat(x),
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shorthexfloat(y),shorthexfloat(z))
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def f2s(n,angle=False,axis=False):
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'''convert to numerical value to string
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try to remove no significant digits, by guessing a former rounding
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@ -51,6 +60,33 @@ def f2s(n,angle=False,axis=False):
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if float(s) == n:
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return s
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def ax2_xdir(normal):
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#adaped from gp_Ax2.ccc (c) OpenCascade SAS LGPL 2.1+
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xa=abs(normal.x)
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ya=abs(normal.y)
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za=abs(normal.z)
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if ya <= xa and ya <= za:
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if xa > za:
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return FreeCAD.Vector(-normal.z,0, normal.x)
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else:
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return FreeCAD.Vector( normal.z,0,-normal.x)
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elif xa <= ya and xa <= za:
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if ya > za:
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return FreeCAD.Vector(0,-normal.z, normal.y)
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else:
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return FreeCAD.Vector(0, normal.z,-normal.y)
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else:
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if xa > ya:
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return FreeCAD.Vector(-normal.y, normal.x,0)
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else:
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return FreeCAD.Vector( normal.y,-normal.x,0)
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def occversiontuple():
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import FreeCAD,Part
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occmajs,occmins,occfixs = FreeCAD.ConfigGet('OCC_VERSION').split('.')[:3]
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return (int(occmajs),int(occmins),int(occfixs))
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def polygonstr(r,pcount):
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import math
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v=FreeCAD.Vector(r,0,0)
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@ -80,10 +116,22 @@ def placement2draw(placement,name='object'):
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drawcommand=''
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if not placement.Rotation.isNull():
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import math
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dx,dy,dz=placement.Rotation.Axis
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#dx,dy,dz=placement.Rotation.Axis
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ax=placement.Rotation.Axis
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import itertools
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# denormalize rotation axis
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for t in itertools.product((0,1,-1),repeat=3):
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if t != (0,0,0):
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if (ax-FreeCAD.Vector(*t).normalize()).Length < 1e-15:
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dx,dy,dz = t
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break
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else:
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dx,dy,dz=placement.Rotation.Axis
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#drawcommand += "# %s\n" %quaternionToString(placement.Rotation)
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an=math.degrees(placement.Rotation.Angle)
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drawcommand += "trotate %s 0 0 0 %s %s %s %s\n" % \
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(name,f2s(dx,axis=True),f2s(dy,axis=True),f2s(dz,axis=True),\
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drawcommand += "trotate %s 0 0 0 %s %s %s %s\n" % (name,\
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f2s(dx),f2s(dy),f2s(dz),\
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# f2s(dx,axis=True),f2s(dy,axis=True),f2s(dz,axis=True),\
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f2s(an,angle=True))
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if placement.Base.Length > 1e-8:
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x,y,z=placement.Base
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@ -130,7 +178,8 @@ def isDraftFeature(ob):
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return True
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def isDraftClone(ob):
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if ob.isDerivedFrom('Part::FeaturePython') and \
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if (ob.isDerivedFrom('Part::FeaturePython') or \
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ob.isDerivedFrom('Part::Part2DObjectPython')) and \
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hasattr(ob.Proxy,'__module__') and \
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ob.Proxy.__module__ == 'Draft':
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import Draft
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@ -170,6 +219,10 @@ def isDraftWire(ob):
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ob.ChamferSize.Value == 0.0:
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return True
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def isDraftShape2DView(ob):
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if isDraftFeature(ob):
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import Draft
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return isinstance(ob.Proxy,Draft._Shape2DView)
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def isOpenSCADFeature(ob):
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if ob.isDerivedFrom('Part::FeaturePython') and \
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@ -211,6 +264,7 @@ class Drawexporter(object):
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def write_header(self):
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import FreeCAD
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#self.csg.write('#!/usr/bin/env DRAWEXE\n')
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self.csg.write('#generated by FreeCAD %s\n' % \
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'.'.join(FreeCAD.Version()[0:3]))
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self.csg.write('pload MODELING\n')
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@ -352,8 +406,12 @@ class Drawexporter(object):
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if checksupported: return True # The object is supported
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d1.update({'radius':f2s(ob.Radius),'angle1':f2s(ob.Angle1),\
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'angle2':f2s(ob.Angle2),'angle3':f2s(ob.Angle3)})
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self.csg.write('psphere %(name)s %(radius)s %(angle1)s %(angle2)s '\
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'%(angle3)s\n'%d1)
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if ob.Angle1.Value == -90 and ob.Angle2.Value == 90 and \
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ob.Angle3.Value == 360:
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self.csg.write('psphere %(name)s %(radius)s\n'%d1)
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else:
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self.csg.write('psphere %(name)s %(radius)s %(angle1)s '
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'%(angle2)s %(angle3)s\n'%d1)
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elif ob.TypeId == "Part::Box" :
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if checksupported: return True # The object is supported
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d1.update({'dx':f2s(ob.Length),'dy':f2s(ob.Width),'dz':f2s(ob.Height)})
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@ -362,19 +420,32 @@ class Drawexporter(object):
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if checksupported: return True # The object is supported
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d1.update({'radius':f2s(ob.Radius),'height':f2s(ob.Height),\
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'angle':f2s(ob.Angle)})
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self.csg.write('pcylinder %(name)s %(radius)s %(height)s %(angle)s\n'%d1)
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if ob.Angle.Value == 360:
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self.csg.write('pcylinder %(name)s %(radius)s %(height)s\n'%d1)
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else:
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self.csg.write('pcylinder %(name)s %(radius)s %(height)s '\
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'%(angle)s\n'%d1)
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elif ob.TypeId == "Part::Cone" :
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if checksupported: return True # The object is supported
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d1.update({'radius1':f2s(ob.Radius1),'radius2':f2s(ob.Radius2),\
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'height':f2s(ob.Height),'angle':f2s(ob.Angle)})
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self.csg.write('pcone %(name)s %(radius1)s %(radius2)s %(height)s %(angle)s\n'%d1)
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if ob.Angle.Value == 360:
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self.csg.write('pcone %(name)s %(radius1)s %(radius2)s '\
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'%(height)s\n'%d1)
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else:
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self.csg.write('pcone %(name)s %(radius1)s %(radius2)s '\
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'%(height)s %(angle)s\n'%d1)
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elif ob.TypeId == "Part::Torus" :
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if checksupported: return True # The object is supported
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d1.update({'radius1':f2s(ob.Radius1),'radius2':f2s(ob.Radius2),\
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'angle1': f2s(ob.Angle1),'angle2':f2s(ob.Angle2),\
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'angle3': f2s(ob.Angle3)})
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self.csg.write('ptorus %(name)s %(radius1)s %(radius2)s %(angle1)s '\
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'%(angle2)s %(angle3)s\n' % d1)
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if ob.Angle1.Value == -180 and ob.Angle2.Value == 180 and \
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ob.Angle3.Value == 360:
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self.csg.write('ptorus %(name)s %(radius1)s %(radius2)s\n'%d1)
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else:
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self.csg.write('ptorus %(name)s %(radius1)s %(radius2)s '\
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'%(angle1)s %(angle2)s %(angle3)s\n' % d1)
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elif ob.TypeId == "Part::Mirroring" :
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if checksupported: return True # The object is supported
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self.process_object(ob.Source)
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@ -411,6 +482,17 @@ class Drawexporter(object):
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return self.process_object(ob.Shapes[0],True)
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self.process_object(ob.Shapes[0],)
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self.csg.write('tcopy %s %s\n'%(ob.Shapes[0].Name,d1['name']))
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elif ob.TypeId == "Part::MultiFuse" and \
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occversiontuple() >= (6,8,1):
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if checksupported: return True # The object is supported
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for subobj in ob.Shapes:
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self.process_object(subobj)
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self.csg.write("bclearobjects\nbcleartools\n")
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self.csg.write("baddobjects %s\n" % ob.Shapes[0].Name)
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self.csg.write("baddtools %s\n" % " ".join(subobj.Name for \
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subobj in ob.Shapes[1:]))
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self.csg.write("bfillds\n")
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self.csg.write("bbop %s 1\n" % ob.Name) #BOPAlgo_FUSE == 1
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else:
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if checksupported: return True # The object is supported
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topname = ob.Name
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@ -646,7 +728,7 @@ class Drawexporter(object):
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self.csg.write('wire %s %s\n' %(wirename,polyname))
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elif isDraftClone(ob):
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if checksupported: return True # The object is supported
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x,y,z=ob.Scale.x
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x,y,z=ob.Scale
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if x == y == z: #uniform scaling
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d1['scale']=f2s(x)
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else:
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@ -677,7 +759,29 @@ class Drawexporter(object):
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self.csg.write('deform %(newname)s %(basename)s'\
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' %(cx)s %(cy)s %(cz)s\n' % d1)
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self.csg.write('compound %s %s\n' % (' '.join(newnames),ob.Name))
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elif isDraftShape2DView(ob) and not ob.Tessellation and \
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ob.ProjectionMode == "Solid" and ob.Base is not None and \
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hasattr(ob.Base,'Shape'):
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# not supported are groups, Arch/Sections and individual faces mode
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if checksupported: return True # The object is supported
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self.process_object(ob.Base)
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v=ob.Projection
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x=ax2_xdir(v)
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self.csg.write('hprj %s_proj 0 0 0 %s %s %s %s %s %s\n' % \
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( ob.Name,f2s(v.x),f2s(v.y),f2s(v.z)\
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, f2s(x.x),f2s(x.y),f2s(x.z)))
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self.csg.write('houtl %s_outl %s\n' % (ob.Name, ob.Base.Name))
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self.csg.write('hfill %s_outl %s_proj 0\n' %(ob.Name,ob.Name)) #0?
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self.csg.write('hload %s_outl\n' % (ob.Name))
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self.csg.write('hsetprj %s_proj\n' % (ob.Name))
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self.csg.write('hupdate\n')
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self.csg.write('hhide\n')
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self.csg.write('unset -nocomplain vl v1l vnl vol vil hl h1l hnl hol hil\n')
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self.csg.write('hres2d\n')
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if ob.HiddenLines:
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self.csg.write('compound vl v1l vnl vol vil hl h1l hnl hol hil %s\n' % ob.Name)
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else:
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self.csg.write('compound vl v1l vnl vol vil %s\n' % ob.Name)
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#elif ob.isDerivedFrom('Part::FeaturePython') and \
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# hasattr(ob.Proxy,'__module__'):
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# pass
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@ -744,3 +848,6 @@ def export(exportList,filename):
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"called when freecad exports a file"
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with Drawexporter(filename) as exporter:
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exporter.export_objects(exportList)
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if 'tcl' not in FreeCAD.getExportType():
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FreeCAD.addExportType("DRAWEXE script (*.tcl)","exportDRAWEXE")
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