def segmentAngleXY(self,
prevCommand,
currCommand,
endpos=False,
currentZ=0):
'''returns in the starting angle in radians for a Path command.
requires the previous command in order to calculate arcs correctly
if endpos = True, return the angle at the end of the segment.'''
global arccommands
if currCommand.Name in arccommands:
arcLoc = FreeCAD.Vector((prevCommand.x + currCommand.I),
(prevCommand.y + currCommand.J), currentZ)
if endpos is True:
radvector = arcLoc.sub(currCommand.Placement.Base
) #Calculate vector at start of arc
else:
radvector = arcLoc.sub(prevCommand.Placement.Base
) #Calculate vector at end of arc
v1 = radvector.cross(FreeCAD.Vector(0, 0, 1))
if currCommand.Name in ["G2", "G02"]:
v1 = D.rotate2D(v1, math.radians(180))
else:
v1 = currCommand.Placement.Base.sub(
prevCommand.Placement.Base) #Straight segments are easy
myAngle = D.angle(v1, FreeCAD.Base.Vector(1, 0, 0),
FreeCAD.Base.Vector(0, 0, -1))
return myAngle
def getIncidentAngle(self, queue):
global currLocation
'''returns in the incident angle in radians between the current and previous moves'''
# get the vector of the last move
if queue[1].Name in arccommands:
print queue
print currLocation
arcLoc = FreeCAD.Base.Vector(queue[2].X + queue[1].I, queue[2].Y + queue[1].J, currLocation['Z'])
radvector = queue[1].Placement.Base.sub(arcLoc) # vector of chord from center to point
# vector of line perp to chord.
v1 = radvector.cross(FreeCAD.Base.Vector(0, 0, 1))
else:
v1 = queue[1].Placement.Base.sub(queue[2].Placement.Base)
# get the vector of the current move
if queue[0].Name in arccommands:
arcLoc = FreeCAD.Base.Vector((queue[1].x + queue[0].I), (queue[1].y + queue[0].J), currLocation['Z'])
radvector = queue[1].Placement.Base.sub(arcLoc) # calculate arcangle
v2 = radvector.cross(FreeCAD.Base.Vector(0, 0, 1))
# if switching between G2 and G3, reverse orientation
if queue[1].Name in arccommands:
if queue[0].Name != queue[1].Name:
v2 = D.rotate2D(v2, math.radians(180))
else:
v2 = queue[0].Placement.Base.sub(queue[1].Placement.Base)
incident_angle = D.angle(v1, v2, FreeCAD.Base.Vector(0, 0, -1))
return incident_angle
def segmentAngleXY(self, prevCommand, currCommand, endpos=False, currentZ=0):
'''returns in the starting angle in radians for a Path command.
requires the previous command in order to calculate arcs correctly
if endpos = True, return the angle at the end of the segment.'''
global arccommands
if currCommand.Name in arccommands:
arcLoc = FreeCAD.Vector((prevCommand.x + currCommand.I), (prevCommand.y + currCommand.J), currentZ)
if endpos is True:
radvector = arcLoc.sub(currCommand.Placement.Base) # Calculate vector at start of arc
else:
radvector = arcLoc.sub(prevCommand.Placement.Base) # Calculate vector at end of arc
v1 = radvector.cross(FreeCAD.Vector(0, 0, 1))
if currCommand.Name in ["G2", "G02"]:
v1 = D.rotate2D(v1, math.radians(180))
else:
v1 = currCommand.Placement.Base.sub(prevCommand.Placement.Base) # Straight segments are easy
myAngle = D.angle(v1, FreeCAD.Base.Vector(1, 0, 0), FreeCAD.Base.Vector(0, 0, -1))
return myAngle
def getIncidentAngle(self, queue):
global currLocation
'''returns in the incident angle in radians between the current and previous moves'''
# get the vector of the last move
if queue[1].Name in arccommands:
print queue
print currLocation
arcLoc = FreeCAD.Base.Vector(queue[2].X + queue[1].I,
queue[2].Y + queue[1].J,
currLocation['Z'])
radvector = queue[1].Placement.Base.sub(
arcLoc) # vector of chord from center to point
# vector of line perp to chord.
v1 = radvector.cross(FreeCAD.Base.Vector(0, 0, 1))
else:
v1 = queue[1].Placement.Base.sub(queue[2].Placement.Base)
# get the vector of the current move
if queue[0].Name in arccommands:
arcLoc = FreeCAD.Base.Vector((queue[1].x + queue[0].I),
(queue[1].y + queue[0].J),
currLocation['Z'])
radvector = queue[1].Placement.Base.sub(
arcLoc) # calculate arcangle
v2 = radvector.cross(FreeCAD.Base.Vector(0, 0, 1))
# if switching between G2 and G3, reverse orientation
if queue[1].Name in arccommands:
if queue[0].Name != queue[1].Name:
v2 = D.rotate2D(v2, math.radians(180))
else:
v2 = queue[0].Placement.Base.sub(queue[1].Placement.Base)
incident_angle = D.angle(v1, v2, FreeCAD.Base.Vector(0, 0, -1))
return incident_angle