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Draft: workaround for pivy SoInput.setBuffer bug

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This commit is contained in:
Yorik van Havre 2013-10-21 11:32:36 -02:00
parent 7cae1d9666
commit 0638b524ec
1 changed files with 43 additions and 21 deletions
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64
src/Mod/Draft/DraftTrackers.py
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@ -315,17 +315,20 @@ class bsplineTracker(Tracker):
#fp=open("spline.iv","w")
#fp.write(buf)
#fp.close()
ivin = coin.SoInput()
ivin.setBuffer(buf)
ivob = coin.SoDB.readAll(ivin)
# In case reading from buffer failed
if ivob and ivob.getNumChildren() > 1:
self.bspline = ivob.getChild(1).getChild(0)
self.bspline.removeChild(self.bspline.getChild(0))
self.bspline.removeChild(self.bspline.getChild(0))
self.sep.addChild(self.bspline)
try:
ivin = coin.SoInput()
ivin.setBuffer(buf)
ivob = coin.SoDB.readAll(ivin)
except:
print "Error retrieving coin node"
else:
FreeCAD.Console.PrintWarning("bsplineTracker.recompute() failed to read-in Inventor string\n")
if ivob and ivob.getNumChildren() > 1:
self.bspline = ivob.getChild(1).getChild(0)
self.bspline.removeChild(self.bspline.getChild(0))
self.bspline.removeChild(self.bspline.getChild(0))
self.sep.addChild(self.bspline)
else:
FreeCAD.Console.PrintWarning("bsplineTracker.recompute() failed to read-in Inventor string\n")
class arcTracker(Tracker):
"An arc tracker"
@ -388,7 +391,7 @@ class arcTracker(Tracker):
self.recompute()
def recompute(self):
import Part
import Part,re
if self.circle: self.sep.removeChild(self.circle)
self.circle = None
if self.endangle < self.startangle:
@ -396,17 +399,36 @@ class arcTracker(Tracker):
else:
c = Part.makeCircle(1,Vector(0,0,0),FreeCAD.DraftWorkingPlane.axis,self.startangle,self.endangle)
buf=c.writeInventor(2,0.01)
ivin = coin.SoInput()
ivin.setBuffer(buf)
ivob = coin.SoDB.readAll(ivin)
# In case reading from buffer failed
if ivob and ivob.getNumChildren() > 1:
self.circle = ivob.getChild(1).getChild(0)
self.circle.removeChild(self.circle.getChild(0))
self.circle.removeChild(self.circle.getChild(0))
try:
ivin = coin.SoInput()
ivin.setBuffer(buf)
ivob = coin.SoDB.readAll(ivin)
except:
# workaround for pivy SoInput.setBuffer() bug
buf = buf.replace("\n","")
pts = re.findall("point \[(.*?)\]",buf)[0]
pts = pts.split(",")
pc = []
for p in pts:
v = p.strip().split()
pc.append([float(v[0]),float(v[1]),float(v[2])])
coords = coin.SoCoordinate3()
coords.point.setValues(0,len(pc),pc)
line = coin.SoLineSet()
line.numVertices.setValue(-1)
self.circle = coin.SoSeparator()
self.circle.addChild(coords)
self.circle.addChild(line)
self.sep.addChild(self.circle)
else:
FreeCAD.Console.PrintWarning("arcTracker.recompute() failed to read-in Inventor string\n")
if ivob and ivob.getNumChildren() > 1:
self.circle = ivob.getChild(1).getChild(0)
self.circle.removeChild(self.circle.getChild(0))
self.circle.removeChild(self.circle.getChild(0))
self.sep.addChild(self.circle)
else:
FreeCAD.Console.PrintWarning("arcTracker.recompute() failed to read-in Inventor string\n")
class ghostTracker(Tracker):
'''A Ghost tracker, that allows to copy whole object representations.
@ -478,7 +500,7 @@ class ghostTracker(Tracker):
sep.addChild(coinobj.getChildren()[1])
# sep.addChild(coinobj)
except:
pass
print "Error retrieving coin node"
return sep
class editTracker(Tracker):