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hooks.py
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hooks.py
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from __future__ import division # allows floating point division from integers
import FreeCAD, Part, math
import os, dummy, FreeCADGui
from FreeCAD import Base
from pivy import coin
import CoinNodes
path_curvesWB = os.path.dirname(dummy.__file__)
path_curvesWB_icons = os.path.join( path_curvesWB, 'Resources', 'icons')
DEBUG = 1
def debug(string):
if DEBUG:
FreeCAD.Console.PrintMessage(string)
FreeCAD.Console.PrintMessage("\n")
class hook:
def __init__(self, obj , edge):
''' Add the properties '''
debug("\Hook class Init\n")
obj.addProperty("App::PropertyLinkSub", "Edge", "Base", "Support edge").Edge = edge
obj.addProperty("App::PropertyEnumeration", "Method", "Position", "Position").Method=["Fixed","Parameter","Distance-From-Start","Distance-From-End"]
obj.addProperty("App::PropertyFloat", "X", "Value", "X coordinate")
obj.addProperty("App::PropertyFloat", "Y", "Value", "Y coordinate")
obj.addProperty("App::PropertyFloat", "Z", "Value", "Z coordinate")
obj.addProperty("App::PropertyFloat", "Parameter", "Value", "Parameter value")
obj.addProperty("App::PropertyFloat", "StartDistance", "Value", "Distance from edge start")
obj.addProperty("App::PropertyFloat", "EndDistance", "Value", "Distance to edge end")
obj.addProperty("App::PropertyVector", "Center", "Position", "Center")
#obj.Method = "Parameter"
obj.Proxy = self
def getEdge(self, obj):
if obj.Edge:
o = obj.Edge[0]
e = obj.Edge[1][0]
n = eval(e.lstrip('Edge'))
return(o.Shape.Edges[n-1])
else:
debug("getEdge failed")
return(None)
def execute(self, obj):
debug("* Hook : execute *\n")
e = self.getEdge(obj)
if e == None:
return
#center = FreeCAD.Vector(0,0,0)
if obj.Method == "Fixed":
p = FreeCAD.Vector(obj.X, obj.Y, obj.Z)
v = Part.Vertex(p)
obj.Center = v.distToShape(e)[1][0][1]
elif obj.Method == "Parameter":
obj.Center = e.valueAt(obj.Parameter)
elif obj.Method == "Distance-From-Start":
par = e.getParameterByLength(obj.StartDistance)
obj.Center = e.valueAt(par)
elif obj.Method == "Distance-From-End":
par = e.getParameterByLength(e.Length - obj.EndDistance)
obj.Center = e.valueAt(par)
#radius = 1.0 * e.Length / 100.0
#sphere = Part.Sphere()
#sphere.Radius = radius
#sphere.Center = obj.Center
obj.Shape = Part.Vertex(obj.Center)
def setEditormode(self, fp, l):
if not len(l) == 6:
return
i = 0
for prop in ["X","Y","Z","Parameter","StartDistance","EndDistance"]:
fp.setEditorMode(prop, l[i])
i += 1
def onChanged(self, fp, prop):
debug("Hook : onChanged -> %s"%str(prop))
#print fp
if not fp.Edge:
return
else:
e = self.getEdge( fp)
#if prop == "Edge":
#self.setEdge( fp)
if prop == "Method":
if fp.Method == "Fixed":
self.setEditormode(fp, [0,0,0,2,2,2])
fp.X = fp.Center.x
fp.Y = fp.Center.y
fp.Z = fp.Center.z
elif fp.Method == "Parameter":
self.setEditormode(fp, [2,2,2,0,2,2])
v = Part.Vertex( fp.Center )
try:
fp.Parameter = e.Curve.parameter(fp.Center)
except:
pass
elif fp.Method == "Distance-From-Start":
self.setEditormode(fp, [2,2,2,2,0,2])
par = e.getParameterByLength(fp.StartDistance)
fp.Center = e.valueAt(par)
elif fp.Method == "Distance-From-End":
self.setEditormode(fp, [2,2,2,2,2,0])
par = e.getParameterByLength(e.Length - fp.EndDistance)
fp.Center = e.valueAt(par)
if prop in ['X','Y','Z']:
p = FreeCAD.Vector(fp.X, fp.Y, fp.Z)
v = Part.Vertex(p)
center = v.distToShape(e)[1][0][1]
fp.Center = center
if prop == "Parameter":
if fp.Parameter < e.FirstParameter:
fp.Parameter = e.FirstParameter
elif fp.Parameter > e.LastParameter:
fp.Parameter = e.LastParameter
debug("Hook : Parameter changed to %f"%(fp.Parameter))
fp.Center = e.valueAt(fp.Parameter)
if prop == "StartDistance":
if fp.StartDistance < 0.0:
fp.StartDistance = 0.0
elif fp.StartDistance > e.Length:
fp.StartDistance = e.Length
par = e.getParameterByLength(fp.StartDistance)
fp.Center = e.valueAt(par)
debug("Hook : StartDistance changed to %f"%(fp.StartDistance))
if prop == "EndDistance":
if fp.EndDistance < 0:
fp.EndDistance = 0
elif fp.EndDistance > e.Length:
fp.EndDistance = e.Length
par = e.getParameterByLength(e.Length - fp.EndDistance)
fp.Center = e.valueAt(par)
debug("Hook : EndDistance changed to %f"%(fp.EndDistance))
class ViewProviderHook:
def __init__(self,vobj):
vobj.Proxy = self
def getIcon(self):
return (path_curvesWB_icons+'/discretize.svg')
def attach(self, vobj):
self.ViewObject = vobj
self.Object = vobj.Object
#self.selectionNode = coin.SoType.fromName("SoFCSelection").createInstance()
#self.selectionNode.documentName.setValue(FreeCAD.ActiveDocument.Name)
#self.selectionNode.objectName.setValue(vobj.Object.Name) # here obj is the ViewObject, we need its associated App Object
#self.selectionNode.subElementName.setValue("Vertex")
#self.node = coin.SoSeparator()
#self.node.setName("Hook")
#self.coord = coin.SoCoordinate3()
#self.marker = coin.SoSphere() #coin.SoMarkerSet() #((1,0,0),coin.SoMarkerSet.DIAMOND_FILLED_9_9)
##self.marker.markerIndex = coin.SoMarkerSet.DIAMOND_FILLED_9_9
#self.color = coin.SoBaseColor()
#self.color.rgb = (1,0,0)
##self.node.addChild(self.color)
##self.node.addChild(self.coord)
##self.node.addChild(self.marker)
#self.selectionNode.addChild(self.color)
#self.selectionNode.addChild(self.coord)
#self.selectionNode.addChild(self.marker)
#vobj.addDisplayMode(self.selectionNode,"Wireframe")
#def updateData(self, fp, prop):
#if prop == "Center":
#vec = coin.SbVec3f(fp.Center.x, fp.Center.y, fp.Center.z)
#self.coord.point.setValue(vec)
##self.coord.point.setValues(0,len([vec]),[vec])
#def getDisplayModes(self,obj):
#"Return a list of display modes."
#modes=[]
#modes.append("Wireframe")
#return modes
#def getDefaultDisplayMode(self):
#'''Return the name of the default display mode. It must be defined in getDisplayModes.'''
#return "Wireframe"
#def setDisplayMode(self,mode):
#return mode
def setEdit(self,vobj,mode):
return False
def unsetEdit(self,vobj,mode):
return
def __getstate__(self):
return None
def __setstate__(self,state):
return None
#def claimChildren(self):
#return None #[self.Object.Edge[0]]
#def onDelete(self, feature, subelements): # subelements is a tuple of strings
#try:
#self.Object.Edge[0].ViewObject.Visibility=True
##self.Object.Tool.ViewObject.show()
#except Exception as err:
#App.Console.PrintError("Error in onDelete: " + err.message)
#return True
class hookCmd:
def parseSel(self, selectionObject):
res = []
for obj in selectionObject:
if obj.HasSubObjects:
subobj = obj.SubObjects[0]
if issubclass(type(subobj),Part.Edge):
res.append((obj.Object,[obj.SubElementNames[0]]))
else:
res.append((obj.Object,["Edge1"]))
return res
def Activated(self):
s = FreeCADGui.Selection.getSelectionEx()
edges = self.parseSel(s)
for e in edges:
obj=FreeCAD.ActiveDocument.addObject("Part::FeaturePython",u"Hook") #add object to document
hook(obj,e)
ViewProviderHook(obj.ViewObject)
obj.ViewObject.PointSize = 5
obj.Method = "Parameter"
FreeCAD.ActiveDocument.recompute()
def GetResources(self):
return {'Pixmap' : path_curvesWB_icons+'/discretize.svg', 'MenuText': 'Hook', 'ToolTip': 'Creates a hook on edge'}
FreeCADGui.addCommand('hook', hookCmd())