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PathSelection.py
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PathSelection.py
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# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
# * Copyright (c) 2015 Dan Falck <ddfalck@gmail.com> *
# * *
# * This program is free software; you can redistribute it and/or modify *
# * it under the terms of the GNU Lesser General Public License (LGPL) *
# * as published by the Free Software Foundation; either version 2 of *
# * the License, or (at your option) any later version. *
# * for detail see the LICENCE text file. *
# * *
# * This program is distributed in the hope that it will be useful, *
# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
# * GNU Library General Public License for more details. *
# * *
# * You should have received a copy of the GNU Library General Public *
# * License along with this program; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
'''Selection gates and observers to control selectability while building Path operations '''
import FreeCAD
import FreeCADGui
from FreeCAD import Vector
def equals(p1, p2):
'''returns True if vertexes have same coordinates within precision amount of digits '''
precision = 12
p = precision
u = Vector(p1.X, p1.Y, p1.Z)
v = Vector(p2.X, p2.Y, p2.Z)
vector = (u.sub(v))
isNull = (round(vector.x, p) == 0 and round(vector.y, p) == 0 and round(vector.z, p) == 0)
return isNull
def segments(poly):
''' A sequence of (x,y) numeric coordinates pairs '''
return zip(poly, poly[1:] + [poly[0]])
def check_clockwise(poly):
'''
check_clockwise(poly) a function for returning a boolean if the selected wire is clockwise or counter clockwise
based on point order. poly = [(x1,y1),(x2,y2),(x3,y3)]
'''
clockwise = False
if (sum(x0*y1 - x1*y0 for ((x0, y0), (x1, y1)) in segments(poly))) < 0:
clockwise = not clockwise
return clockwise
class FGate:
def allow(self, doc, obj, sub):
return (sub[0:4] == 'Face')
class VGate:
def allow(self, doc, obj, sub):
return (sub[0:6] == 'Vertex')
class EGate:
def allow(self, doc, obj, sub):
return (sub[0:4] == 'Edge')
class MESHGate:
def allow(self, doc, obj, sub):
return (obj.TypeId[0:4] == 'Mesh')
class ENGRAVEGate:
def allow(self, doc, obj, sub):
return (obj.Name[0:11] == 'ShapeString')
class DRILLGate:
def allow(self, doc, obj, sub):
import Part
drillable = False
try:
obj = obj.Shape
except:
return False
if obj.ShapeType == 'Vertex':
drillable = True
elif obj.ShapeType == 'Solid':
if sub[0:4] == 'Face':
subobj = obj.getElement(sub)
drillable = isinstance(subobj.Edges[0].Curve, Part.Circle)
if str(subobj.Surface) == "<Cylinder object>":
drillable = True
if sub[0:4] == 'Edge':
o = obj.getElement(sub)
drillable = isinstance(o.Curve, Part.Circle)
return drillable
class PROFILEGate:
def allow(self, doc, obj, sub):
profileable = False
try:
obj = obj.Shape
except:
return False
if obj.ShapeType == 'Edge':
profileable = False
elif obj.ShapeType == 'Compound':
if sub[0:4] == 'Face':
profileable = True
if sub[0:4] == 'Edge':
profileable = False
elif obj.ShapeType == 'Face':
profileable = False
elif obj.ShapeType == 'Solid':
if sub[0:4] == 'Face':
profileable = True
if sub[0:4] == 'Edge':
profileable = False
elif obj.ShapeType == 'Wire':
profileable = False
return profileable
class POCKETGate:
def allow(self, doc, obj, sub):
pocketable = False
try:
obj = obj.Shape
except:
return False
if obj.ShapeType == 'Edge':
pocketable = False
elif obj.ShapeType == 'Face':
pocketable = True
elif obj.ShapeType == 'Solid':
if sub[0:4] == 'Face':
pocketable = True
elif obj.ShapeType == 'Compound':
if sub[0:4] == 'Face':
pocketable = True
return pocketable
def fselect():
FreeCADGui.Selection.addSelectionGate(FGate())
FreeCAD.Console.PrintWarning("Face Select Mode\n")
def vselect():
FreeCADGui.Selection.addSelectionGate(VGate())
FreeCAD.Console.PrintWarning("Vertex Select Mode\n")
def eselect():
FreeCADGui.Selection.addSelectionGate(EGate())
FreeCAD.Console.PrintWarning("Edge Select Mode\n")
def drillselect():
FreeCADGui.Selection.addSelectionGate(DRILLGate())
FreeCAD.Console.PrintWarning("Drilling Select Mode\n")
def engraveselect():
FreeCADGui.Selection.addSelectionGate(ENGRAVEGate())
FreeCAD.Console.PrintWarning("Engraving Select Mode\n")
def profileselect():
FreeCADGui.Selection.addSelectionGate(PROFILEGate())
FreeCAD.Console.PrintWarning("Profiling Select Mode\n")
def pocketselect():
FreeCADGui.Selection.addSelectionGate(POCKETGate())
FreeCAD.Console.PrintWarning("Pocketing Select Mode\n")
def surfaceselect():
FreeCADGui.Selection.addSelectionGate(MESHGate())
FreeCAD.Console.PrintWarning("Surfacing Select Mode\n")
def clear():
FreeCADGui.Selection.removeSelectionGate()
FreeCAD.Console.PrintWarning("Free Select\n")