def build(self):
self.active = False
if not hasattr(self, 'switch'):
self.sg = FreeCADGui.ActiveDocument.ActiveView.getSceneGraph()
self.switch = coin.SoSwitch()
if hasattr(self, 'Object'):
self.switch.setName("%s_ControlPoints" % self.Object.Name)
self.empty = coin.SoSeparator() # Empty node
self.node = coin.SoSeparator()
self.coord = CoinNodes.coordinate3Node()
self.poly = CoinNodes.polygonNode((0.5, 0.5, 0.5), 1)
self.marker = CoinNodes.markerSetNode(
(1, 0, 0), coin.SoMarkerSet.DIAMOND_FILLED_7_7)
self.node.addChild(self.coord)
self.node.addChild(self.poly)
self.node.addChild(self.marker)
self.switch.addChild(self.empty)
self.switch.addChild(self.node)
self.sg.addChild(self.switch)
def curveNode(cur):
bspline = False
rational = False
try:
poles = cur.getPoles()
weights = cur.getWeights()
except:
return False
try:
rational = cur.isRational()
except:
pass
try:
knots = cur.getKnots()
mults = cur.getMultiplicities()
bspline = True
except:
bspline = False
# *** Set poles ***
polesnode = coinNodes.coordinate3Node(poles)
# *** Set weights ***
weightStr = getString(weights)
polySep = coinNodes.polygonNode((0.5, 0.5, 0.5), 1)
polySep.vertices = poles
# *** Set markers ***
markerSep = coinNodes.markerSetNode((1, 0, 0),
coin.SoMarkerSet.DIAMOND_FILLED_9_9)
markerSep.color = [(1, 0, 0)] + [(0.5, 0.0, 0.5)] * (len(poles) - 1)
if rational:
# *** Set weight text ***
weightSep = coinNodes.multiTextNode((1, 0, 0), "osiFont,FreeSans,sans",
16, 0)
weightSep.data = (poles, weightStr)
if bspline:
# *** Set knots ***
knotPoints = []
for k in knots:
p = cur.value(k)
knotPoints.append((p.x, p.y, p.z))
knotsnode = coinNodes.coordinate3Node(knotPoints)
# *** Set texts ***
multStr = []
for m in mults:
multStr.append("\n%d" % m)
knotMarkerSep = coinNodes.markerSetNode(
(0, 0, 1), coin.SoMarkerSet.CIRCLE_FILLED_5_5)
knotMarkerSep.color = [(0, 0, 1)] * len(knotPoints)
# *** Set mult text ***
multSep = coinNodes.multiTextNode((0, 0, 1), "osiFont,FreeSans,sans",
16, 1)
multSep.data = (knotPoints, multStr)
vizSep = coin.SoSeparator()
vizSep.addChild(polesnode)
vizSep.addChild(polySep)
vizSep.addChild(markerSep)
if rational:
vizSep.addChild(weightSep)
if bspline:
vizSep.addChild(knotsnode)
vizSep.addChild(knotMarkerSep)
vizSep.addChild(multSep)
return vizSep