/
DraftTools.py
4531 lines (4141 loc) · 196 KB
/
DraftTools.py
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# -*- coding: utf8 -*-
#***************************************************************************
#* *
#* Copyright (c) 2009, 2010 *
#* Yorik van Havre <yorik@uncreated.net>, Ken Cline <cline@frii.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 *
#* *
#***************************************************************************
__title__="FreeCAD Draft Workbench GUI Tools"
__author__ = "Yorik van Havre, Werner Mayer, Martin Burbaum, Ken Cline, Dmitry Chigrin"
__url__ = "http://www.freecadweb.org"
#---------------------------------------------------------------------------
# Generic stuff
#---------------------------------------------------------------------------
import os, FreeCAD, FreeCADGui, WorkingPlane, math, re, Draft, Draft_rc, DraftVecUtils
from FreeCAD import Vector
from DraftGui import todo,QtCore,QtGui
from DraftSnap import *
from DraftTrackers import *
from pivy import coin
#---------------------------------------------------------------------------
# Preflight stuff
#---------------------------------------------------------------------------
# update the translation engine
FreeCADGui.updateLocale()
# sets the default working plane
plane = WorkingPlane.plane()
FreeCAD.DraftWorkingPlane = plane
defaultWP = Draft.getParam("defaultWP",1)
if defaultWP == 1: plane.alignToPointAndAxis(Vector(0,0,0), Vector(0,0,1), 0)
elif defaultWP == 2: plane.alignToPointAndAxis(Vector(0,0,0), Vector(0,1,0), 0)
elif defaultWP == 3: plane.alignToPointAndAxis(Vector(0,0,0), Vector(1,0,0), 0)
# last snapped objects, for quick intersection calculation
lastObj = [0,0]
# set modifier keys
MODS = ["shift","ctrl","alt"]
MODCONSTRAIN = MODS[Draft.getParam("modconstrain",0)]
MODSNAP = MODS[Draft.getParam("modsnap",1)]
MODALT = MODS[Draft.getParam("modalt",2)]
#---------------------------------------------------------------------------
# General functions
#---------------------------------------------------------------------------
def translate(context,text):
"convenience function for Qt translator"
return QtGui.QApplication.translate(context, text, None, QtGui.QApplication.UnicodeUTF8).encode("utf8")
def msg(text=None,mode=None):
"prints the given message on the FreeCAD status bar"
if not text: FreeCAD.Console.PrintMessage("")
else:
if mode == 'warning':
FreeCAD.Console.PrintWarning(text)
elif mode == 'error':
FreeCAD.Console.PrintError(text)
else:
FreeCAD.Console.PrintMessage(text)
def formatUnit(exp,unit="mm"):
'''returns a formatting string to set a number to the correct unit'''
d = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Units").GetInt("Decimals",2)
f = "%." + str(d) + "f " + unit
return f % exp
def selectObject(arg):
'''this is a scene even handler, to be called from the Draft tools
when they need to select an object'''
if (arg["Type"] == "SoKeyboardEvent"):
if (arg["Key"] == "ESCAPE"):
FreeCAD.activeDraftCommand.finish()
# TODO : this part raises a coin3D warning about scene traversal, to be fixed.
elif (arg["Type"] == "SoMouseButtonEvent"):
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
cursor = arg["Position"]
snapped = Draft.get3DView().getObjectInfo((cursor[0],cursor[1]))
if snapped:
obj = FreeCAD.ActiveDocument.getObject(snapped['Object'])
FreeCADGui.Selection.addSelection(obj)
FreeCAD.activeDraftCommand.component=snapped['Component']
FreeCAD.activeDraftCommand.proceed()
def getPoint(target,args,mobile=False,sym=False,workingplane=True,noTracker=False):
'''
Function used by the Draft Tools.
returns a constrained 3d point and its original point.
if mobile=True, the constraining occurs from the location of
mouse cursor when Shift is pressed, otherwise from last entered
point. If sym=True, x and y values stay always equal. If workingplane=False,
the point wont be projected on the Working Plane. if noTracker is True, the
tracking line will not be displayed
'''
ui = FreeCADGui.draftToolBar
view = Draft.get3DView()
# get point
if target.node:
last = target.node[-1]
else:
last = None
amod = hasMod(args,MODSNAP)
cmod = hasMod(args,MODCONSTRAIN)
if hasattr(FreeCADGui,"Snapper"):
point = FreeCADGui.Snapper.snap(args["Position"],lastpoint=last,active=amod,constrain=cmod,noTracker=noTracker)
info = FreeCADGui.Snapper.snapInfo
mask = FreeCADGui.Snapper.affinity
else:
p = FreeCADGui.ActiveDocument.ActiveView.getCursorPos()
point = FreeCADGui.ActiveDocument.ActiveView.getPoint(p)
info = FreeCADGui.ActiveDocument.ActiveView.getObjectInfo(p)
mask = None
ctrlPoint = Vector(point)
if target.node:
if target.featureName == "Rectangle":
ui.displayPoint(point, target.node[0], plane=plane, mask=mask)
else:
ui.displayPoint(point, target.node[-1], plane=plane, mask=mask)
else: ui.displayPoint(point, plane=plane, mask=mask)
return point,ctrlPoint,info
def getSupport(args=None):
"returns the supporting object and sets the working plane"
if not args:
sel = FreeCADGui.Selection.getSelectionEx()
if len(sel) == 1:
sel = sel[0]
if sel.HasSubObjects:
if len(sel.SubElementNames) == 1:
if "Face" in sel.SubElementNames[0]:
if plane.weak:
plane.alignToFace(sel.SubObjects[0])
return sel.Object
return None
snapped = Draft.get3DView().getObjectInfo((args["Position"][0],args["Position"][1]))
if not snapped: return None
obj = None
plane.save()
try:
obj = FreeCAD.ActiveDocument.getObject(snapped['Object'])
shape = obj.Shape
component = getattr(shape,snapped["Component"])
if plane.alignToFace(component, 0) \
or plane.alignToCurve(component, 0):
self.display(plane.axis)
except:
pass
# don't set the object's support if we are in the middle of an operation
return None
def hasMod(args,mod):
"checks if args has a specific modifier"
if mod == "shift":
return args["ShiftDown"]
elif mod == "ctrl":
return args["CtrlDown"]
elif mod == "alt":
return args["AltDown"]
def setMod(args,mod,state):
"sets a specific modifier state in args"
if mod == "shift":
args["ShiftDown"] = state
elif mod == "ctrl":
args["CtrlDown"] = state
elif mod == "alt":
args["AltDown"] = state
#---------------------------------------------------------------------------
# Base Class
#---------------------------------------------------------------------------
class DraftTool:
"The base class of all Draft Tools"
def __init__(self):
self.commitList = []
def IsActive(self):
if FreeCADGui.ActiveDocument:
return True
else:
return False
def Activated(self,name="None"):
if FreeCAD.activeDraftCommand:
FreeCAD.activeDraftCommand.finish()
global Part, DraftGeomUtils
import Part, DraftGeomUtils
self.ui = None
self.call = None
self.support = None
self.point = None
self.commitList = []
self.doc = FreeCAD.ActiveDocument
if not self.doc:
self.finish()
return
FreeCAD.activeDraftCommand = self
self.view = Draft.get3DView()
self.ui = FreeCADGui.draftToolBar
self.ui.sourceCmd = self
self.ui.setTitle(name)
self.ui.show()
plane.setup()
self.node = []
self.pos = []
self.constrain = None
self.obj = None
self.extendedCopy = False
self.ui.setTitle(name)
self.featureName = name
self.planetrack = None
if Draft.getParam("showPlaneTracker",False):
self.planetrack = PlaneTracker()
def finish(self,close=False):
self.node = []
FreeCAD.activeDraftCommand = None
if self.ui:
self.ui.offUi()
self.ui.sourceCmd = None
msg("")
if self.planetrack:
self.planetrack.finalize()
plane.restore()
if hasattr(FreeCADGui,"Snapper"):
FreeCADGui.Snapper.off()
if self.call:
self.view.removeEventCallback("SoEvent",self.call)
self.call = None
if self.commitList:
todo.delayCommit(self.commitList)
self.commitList = []
def commit(self,name,func):
"stores actions to be committed to the FreeCAD document"
# print "committing"
self.commitList.append((name,func))
def getStrings(self,addrot=None):
"returns a couple of useful strings fro building python commands"
# current plane rotation
p = plane.getRotation()
qr = p.Rotation.Q
qr = '('+str(qr[0])+','+str(qr[1])+','+str(qr[2])+','+str(qr[3])+')'
# support object
if self.support:
sup = 'FreeCAD.ActiveDocument.getObject("' + self.support.Name + '")'
else:
sup = 'None'
# contents of self.node
points='['
for n in self.node:
if len(points) > 1:
points += ','
points += DraftVecUtils.toString(n)
points += ']'
# fill mode
if self.ui:
fil = str(bool(self.ui.fillmode))
else:
fil = "True"
return qr,sup,points,fil
#---------------------------------------------------------------------------
# Helper tools
#---------------------------------------------------------------------------
class SelectPlane(DraftTool):
"The Draft_SelectPlane FreeCAD command definition"
def GetResources(self):
return {'Pixmap' : 'Draft_SelectPlane',
'Accel' : "W, P",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_SelectPlane", "SelectPlane"),
'ToolTip' : QtCore.QT_TRANSLATE_NOOP("Draft_SelectPlane", "Select a working plane for geometry creation")}
def Activated(self):
DraftTool.Activated(self)
self.offset = 0
if self.doc:
sel = FreeCADGui.Selection.getSelectionEx()
if len(sel) == 1:
sel = sel[0]
self.ui = FreeCADGui.draftToolBar
if Draft.getType(sel.Object) == "Axis":
plane.alignToEdges(sel.Object.Shape.Edges)
self.display(plane.axis)
self.finish()
return
elif sel.HasSubObjects:
if len(sel.SubElementNames) == 1:
if "Face" in sel.SubElementNames[0]:
plane.alignToFace(sel.SubObjects[0], self.offset)
self.display(plane.axis)
self.finish()
return
self.ui.selectPlaneUi()
msg(translate("draft", "Pick a face to define the drawing plane\n"))
if plane.alignToSelection(self.offset):
FreeCADGui.Selection.clearSelection()
self.display(plane.axis)
self.finish()
else:
self.call = self.view.addEventCallback("SoEvent", self.action)
def action(self, arg):
if arg["Type"] == "SoKeyboardEvent" and arg["Key"] == "ESCAPE":
self.finish()
if arg["Type"] == "SoMouseButtonEvent":
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
cursor = arg["Position"]
doc = FreeCADGui.ActiveDocument
info = Draft.get3DView().getObjectInfo((cursor[0],cursor[1]))
if info:
try:
shape = doc.getObject(info["Object"]).Object.Shape
component = getattr(shape, info["Component"])
if plane.alignToFace(component, self.offset) \
or plane.alignToCurve(component, self.offset):
self.display(plane.axis)
self.finish()
except:
pass
def selectHandler(self, arg):
try:
self.offset = float(self.ui.offset)
except:
self.offset = 0
if arg == "XY":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector(0,0,0), FreeCAD.Vector(0,0,1), "+str(self.offset)+")")
self.display('top')
self.finish()
elif arg == "XZ":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector(0,0,0), FreeCAD.Vector(0,-1,0), "+str(self.offset)+")")
self.display('front')
self.finish()
elif arg == "YZ":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector(0,0,0), FreeCAD.Vector(1,0,0), "+str(self.offset)+")")
self.display('side')
self.finish()
elif arg == "currentView":
d = self.view.getViewDirection().negative()
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector(0,0,0), FreeCAD.Vector("+str(d.x)+","+str(d.y)+","+str(d.z)+"), "+str(self.offset)+")")
self.display(d)
self.finish()
elif arg == "reset":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.reset()")
self.display('None')
self.finish()
def offsetHandler(self, arg):
self.offset = arg
def display(self,arg):
if self.offset:
if self.offset > 0: suffix = ' + '+str(self.offset)
else: suffix = ' - '+str(self.offset)
else: suffix = ''
if type(arg).__name__ == 'str':
self.ui.wplabel.setText(arg+suffix)
elif type(arg).__name__ == 'Vector':
plv = 'd('+str(arg.x)+','+str(arg.y)+','+str(arg.z)+')'
self.ui.wplabel.setText(plv+suffix)
FreeCADGui.doCommandGui("FreeCADGui.Snapper.setGrid()")
#---------------------------------------------------------------------------
# Geometry constructors
#---------------------------------------------------------------------------
class Creator(DraftTool):
"A generic Draft Creator Tool used by creation tools such as line or arc"
def __init__(self):
DraftTool.__init__(self)
def Activated(self,name="None"):
DraftTool.Activated(self)
self.support = getSupport()
class Line(Creator):
"The Line FreeCAD command definition"
def __init__(self, wiremode=False):
Creator.__init__(self)
self.isWire = wiremode
def GetResources(self):
return {'Pixmap' : 'Draft_Line',
'Accel' : "L,I",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_Line", "Line"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_Line", "Creates a 2-point line. CTRL to snap, SHIFT to constrain")}
def Activated(self,name=translate("draft","Line")):
Creator.Activated(self,name)
if self.doc:
self.obj = None
if self.isWire:
self.ui.wireUi(name)
else:
self.ui.lineUi(name)
self.obj=self.doc.addObject("Part::Feature",self.featureName)
# self.obj.ViewObject.Selectable = False
Draft.formatObject(self.obj)
self.call = self.view.addEventCallback("SoEvent",self.action)
msg(translate("draft", "Pick first point:\n"))
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
if self.obj:
# remove temporary object, if any
old = self.obj.Name
todo.delay(self.doc.removeObject,old)
self.obj = None
if (len(self.node) > 1):
if (len(self.node) == 2) and Draft.getParam("UsePartPrimitives",False):
# use Part primitive
p1 = self.node[0]
p2 = self.node[-1]
self.commit(translate("draft","Create Line"),
['line = FreeCAD.ActiveDocument.addObject("Part::Line","Line")',
'line.X1 = '+str(p1.x),
'line.Y1 = '+str(p1.y),
'line.Z1 = '+str(p1.z),
'line.X2 = '+str(p2.x),
'line.Y2 = '+str(p2.y),
'line.Z2 = '+str(p2.z)])
else:
# building command string
rot,sup,pts,fil = self.getStrings()
FreeCADGui.addModule("Draft")
self.commit(translate("draft","Create DWire"),
['points='+pts,
'Draft.makeWire(points,closed='+str(closed)+',face='+fil+',support='+sup+')'])
Creator.finish(self)
if self.ui:
if self.ui.continueMode:
self.Activated()
def action(self,arg):
"scene event handler"
if arg["Type"] == "SoKeyboardEvent":
# key detection
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event":
# mouse movement detection
self.point,ctrlPoint,info = getPoint(self,arg)
elif arg["Type"] == "SoMouseButtonEvent":
# mouse button detection
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
if (arg["Position"] == self.pos):
self.finish(False,cont=True)
else:
if (not self.node) and (not self.support):
getSupport(arg)
self.point,ctrlPoint,info = getPoint(self,arg)
if self.point:
self.ui.redraw()
self.pos = arg["Position"]
self.node.append(self.point)
self.drawSegment(self.point)
if (not self.isWire and len(self.node) == 2):
self.finish(False,cont=True)
if (len(self.node) > 2):
if ((self.point-self.node[0]).Length < Draft.tolerance()):
self.undolast()
self.finish(True,cont=True)
msg(translate("draft", "DWire has been closed\n"))
def undolast(self):
"undoes last line segment"
if (len(self.node) > 1):
self.node.pop()
last = self.node[len(self.node)-1]
if self.obj.Shape.Edges:
edges = self.obj.Shape.Edges
if len(edges) > 1:
edges.pop()
newshape = Part.Wire(edges)
self.obj.Shape = newshape
else:
self.obj.ViewObject.hide()
# DNC: report on removal
msg(translate("draft", "Last point has been removed\n"))
def drawSegment(self,point):
"draws a new segment"
if (len(self.node) == 1):
msg(translate("draft", "Pick next point:\n"))
if self.planetrack:
self.planetrack.set(self.node[0])
elif (len(self.node) == 2):
last = self.node[len(self.node)-2]
newseg = Part.Line(last,point).toShape()
self.obj.Shape = newseg
self.obj.ViewObject.Visibility = True
if self.isWire:
msg(translate("draft", "Pick next point, or (F)inish or (C)lose:\n"))
else:
currentshape = self.obj.Shape.copy()
last = self.node[len(self.node)-2]
if not DraftVecUtils.equals(last,point):
newseg = Part.Line(last,point).toShape()
newshape=currentshape.fuse(newseg)
self.obj.Shape = newshape
msg(translate("draft", "Pick next point, or (F)inish or (C)lose:\n"))
def wipe(self):
"removes all previous segments and starts from last point"
if len(self.node) > 1:
# self.obj.Shape.nullify() - for some reason this fails
self.obj.ViewObject.Visibility = False
self.node = [self.node[-1]]
if self.planetrack:
self.planetrack.set(self.node[0])
msg(translate("draft", "Pick next point:\n"))
def numericInput(self,numx,numy,numz):
"this function gets called by the toolbar when valid x, y, and z have been entered there"
self.point = Vector(numx,numy,numz)
self.node.append(self.point)
self.drawSegment(self.point)
if (not self.isWire and len(self.node) == 2):
self.finish(False,cont=True)
self.ui.setNextFocus()
class Wire(Line):
"a FreeCAD command for creating a wire"
def __init__(self):
Line.__init__(self,wiremode=True)
def GetResources(self):
return {'Pixmap' : 'Draft_Wire',
'Accel' : "W, I",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_Wire", "DWire"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_Wire", "Creates a multiple-point DraftWire (DWire). CTRL to snap, SHIFT to constrain")}
def Activated(self):
Line.Activated(self,name=translate("draft","DWire"))
class BSpline(Line):
"a FreeCAD command for creating a b-spline"
def __init__(self):
Line.__init__(self,wiremode=True)
def GetResources(self):
return {'Pixmap' : 'Draft_BSpline',
'Accel' : "B, S",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_BSpline", "B-Spline"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_BSpline", "Creates a multiple-point b-spline. CTRL to snap, SHIFT to constrain")}
def Activated(self):
Line.Activated(self,name=translate("draft","BSpline"))
if self.doc:
self.bsplinetrack = bsplineTracker()
def action(self,arg):
"scene event handler"
if arg["Type"] == "SoKeyboardEvent":
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event": #mouse movement detection
self.point,ctrlPoint,info = getPoint(self,arg,noTracker=True)
self.bsplinetrack.update(self.node + [self.point])
elif arg["Type"] == "SoMouseButtonEvent":
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
if (arg["Position"] == self.pos):
self.finish(False,cont=True)
else:
if (not self.node) and (not self.support):
getSupport(arg)
self.point,ctrlPoint,info = getPoint(self,arg,noTracker=True)
if self.point:
self.ui.redraw()
self.pos = arg["Position"]
self.node.append(self.point)
self.drawUpdate(self.point)
if (not self.isWire and len(self.node) == 2):
self.finish(False,cont=True)
if (len(self.node) > 2):
# DNC: allows to close the curve
# by placing ends close to each other
# with tol = Draft tolerance
# old code has been to insensitive
if ((self.point-self.node[0]).Length < Draft.tolerance()):
self.undolast()
self.finish(True,cont=True)
msg(translate("draft", "Spline has been closed\n"))
def undolast(self):
"undoes last line segment"
if (len(self.node) > 1):
self.node.pop()
self.bsplinetrack.update(self.node)
spline = Part.BSplineCurve()
spline.interpolate(self.node, False)
self.obj.Shape = spline.toShape()
msg(translate("draft", "Last point has been removed\n"))
def drawUpdate(self,point):
if (len(self.node) == 1):
self.bsplinetrack.on()
if self.planetrack:
self.planetrack.set(self.node[0])
msg(translate("draft", "Pick next point:\n"))
else:
spline = Part.BSplineCurve()
spline.interpolate(self.node, False)
self.obj.Shape = spline.toShape()
msg(translate("draft", "Pick next point, or (F)inish or (C)lose:\n"))
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
if self.ui:
self.bsplinetrack.finalize()
if not Draft.getParam("UiMode",1):
FreeCADGui.Control.closeDialog()
if self.obj:
# remove temporary object, if any
old = self.obj.Name
todo.delay(self.doc.removeObject,old)
if (len(self.node) > 1):
try:
# building command string
rot,sup,pts,fil = self.getStrings()
FreeCADGui.addModule("Draft")
self.commit(translate("draft","Create BSpline"),
['points='+pts,
'Draft.makeBSpline(points,closed='+str(closed)+',face='+fil+',support='+sup+')'])
except:
print "Draft: error delaying commit"
Creator.finish(self)
if self.ui:
if self.ui.continueMode:
self.Activated()
class BezCurve(Line):
"a FreeCAD command for creating a Bezier Curve"
def __init__(self):
Line.__init__(self,wiremode=True)
def GetResources(self):
return {'Pixmap' : 'Draft_BezCurve',
'Accel' : "B, Z",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_BezCurve", "BezCurve"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_BezCurve", "Creates a Bezier curve. CTRL to snap, SHIFT to constrain")}
def Activated(self):
Line.Activated(self,name=translate("draft","BezCurve"))
if self.doc:
self.bezcurvetrack = bezcurveTracker()
def action(self,arg):
"scene event handler"
if arg["Type"] == "SoKeyboardEvent":
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event": #mouse movement detection
self.point,ctrlPoint,info = getPoint(self,arg,noTracker=True)
self.bezcurvetrack.update(self.node + [self.point]) #existing points + this pointer position
elif arg["Type"] == "SoMouseButtonEvent":
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"): #left click
if (arg["Position"] == self.pos): #double click?
self.finish(False,cont=True)
else:
if (not self.node) and (not self.support): #first point
getSupport(arg)
self.point,ctrlPoint,info = getPoint(self,arg,noTracker=True)
if self.point:
self.ui.redraw()
self.pos = arg["Position"]
self.node.append(self.point) #add point to "clicked list"
# sb add a control point, if mod(len(cpoints),2) == 0) then create 2 handle points?
self.drawUpdate(self.point) #???
if (not self.isWire and len(self.node) == 2):
self.finish(False,cont=True)
if (len(self.node) > 2): #does this make sense for a BCurve?
# DNC: allows to close the curve
# by placing ends close to each other
# with tol = Draft tolerance
# old code has been to insensitive
if ((self.point-self.node[0]).Length < Draft.tolerance()):
self.undolast()
self.finish(True,cont=True)
msg(translate("draft", "Bezier curve has been closed\n"))
def undolast(self):
"undoes last line segment"
if (len(self.node) > 1):
self.node.pop()
self.bezcurvetrack.update(self.node)
self.obj.Shape = self.updateShape(self.node)
msg(translate("draft", "Last point has been removed\n"))
def drawUpdate(self,point):
if (len(self.node) == 1):
self.bezcurvetrack.on()
if self.planetrack:
self.planetrack.set(self.node[0])
msg(translate("draft", "Pick next point:\n"))
else:
self.obj.Shape = self.updateShape(self.node)
msg(translate("draft", "Pick next point, or (F)inish or (C)lose:\n"))
def updateShape(self, pts):
'''creates shape for display during creation process.'''
# not quite right. draws 1 big bez. sb segmented
c = Part.BezierCurve()
c.setPoles(pts)
e = Part.Edge(c)
w = Part.Wire(e)
return(w)
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
if self.ui:
self.bezcurvetrack.finalize()
if not Draft.getParam("UiMode",1):
FreeCADGui.Control.closeDialog()
if self.obj:
# remove temporary object, if any
old = self.obj.Name
todo.delay(self.doc.removeObject,old)
if (len(self.node) > 1):
try:
# building command string
rot,sup,pts,fil = self.getStrings()
FreeCADGui.addModule("Draft")
self.commit(translate("draft","Create BezCurve"),
['points='+pts,
'Draft.makeBezCurve(points,closed='+str(closed)+',support='+sup+')'])
except:
print "Draft: error delaying commit"
Creator.finish(self)
if self.ui:
if self.ui.continueMode:
self.Activated()
class FinishLine:
"a FreeCAD command to finish any running Line drawing operation"
def Activated(self):
if (FreeCAD.activeDraftCommand != None):
if (FreeCAD.activeDraftCommand.featureName == "Line"):
FreeCAD.activeDraftCommand.finish(False)
def GetResources(self):
return {'Pixmap' : 'Draft_Finish',
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_FinishLine", "Finish line"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_FinishLine", "Finishes a line without closing it")}
def IsActive(self):
if FreeCADGui.ActiveDocument:
return True
else:
return False
class CloseLine:
"a FreeCAD command to close any running Line drawing operation"
def Activated(self):
if (FreeCAD.activeDraftCommand != None):
if (FreeCAD.activeDraftCommand.featureName == "Line"):
FreeCAD.activeDraftCommand.finish(True)
def GetResources(self):
return {'Pixmap' : 'Draft_Lock',
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_CloseLine", "Close Line"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_CloseLine", "Closes the line being drawn")}
def IsActive(self):
if FreeCADGui.ActiveDocument:
return True
else:
return False
class UndoLine:
"a FreeCAD command to undo last drawn segment of a line"
def Activated(self):
if (FreeCAD.activeDraftCommand != None):
if (FreeCAD.activeDraftCommand.featureName == "Line"):
FreeCAD.activeDraftCommand.undolast()
def GetResources(self):
return {'Pixmap' : 'Draft_Rotate',
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_UndoLine", "Undo last segment"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_UndoLine", "Undoes the last drawn segment of the line being drawn")}
def IsActive(self):
if FreeCADGui.ActiveDocument:
return True
else:
return False
class Rectangle(Creator):
"the Draft_Rectangle FreeCAD command definition"
def GetResources(self):
return {'Pixmap' : 'Draft_Rectangle',
'Accel' : "R, E",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_Rectangle", "Rectangle"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_Rectangle", "Creates a 2-point rectangle. CTRL to snap")}
def Activated(self):
name = translate("draft","Rectangle")
Creator.Activated(self,name)
if self.ui:
self.refpoint = None
self.ui.pointUi(name)
self.ui.extUi()
self.call = self.view.addEventCallback("SoEvent",self.action)
self.rect = rectangleTracker()
msg(translate("draft", "Pick first point:\n"))
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
Creator.finish(self)
if self.ui:
self.rect.off()
self.rect.finalize()
if self.ui:
if self.ui.continueMode:
self.Activated()
def createObject(self):
"creates the final object in the current doc"
p1 = self.node[0]
p3 = self.node[-1]
diagonal = p3.sub(p1)
p2 = p1.add(DraftVecUtils.project(diagonal, plane.v))
p4 = p1.add(DraftVecUtils.project(diagonal, plane.u))
length = p4.sub(p1).Length
if abs(DraftVecUtils.angle(p4.sub(p1),plane.u,plane.axis)) > 1: length = -length
height = p2.sub(p1).Length
if abs(DraftVecUtils.angle(p2.sub(p1),plane.v,plane.axis)) > 1: height = -height
try:
# building command string
rot,sup,pts,fil = self.getStrings()
if Draft.getParam("UsePartPrimitives",False):
# Use Part Primitive
base = p1
if length < 0:
length = -length
base = base.add((p1.sub(p4)).negative())
if height < 0:
height = -height
base = base.add((p1.sub(p2)).negative())
self.commit(translate("draft","Create Plane"),
['plane = FreeCAD.ActiveDocument.addObject("Part::Plane","Plane")',
'plane.Length = '+str(length),
'plane.Width = '+str(height),
'pl = FreeCAD.Placement()',
'pl.Rotation.Q='+rot,
'pl.Base = '+DraftVecUtils.toString(base),
'plane.Placement = pl'])
else:
FreeCADGui.addModule("Draft")
self.commit(translate("draft","Create Rectangle"),
['pl = FreeCAD.Placement()',
'pl.Rotation.Q = '+rot,
'pl.Base = '+DraftVecUtils.toString(p1),
'Draft.makeRectangle(length='+str(length)+',height='+str(height)+',placement=pl,face='+fil+',support='+sup+')'])
except:
print "Draft: error delaying commit"
self.finish(cont=True)
def action(self,arg):
"scene event handler"
if arg["Type"] == "SoKeyboardEvent":
if arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event": #mouse movement detection
self.point,ctrlPoint,info = getPoint(self,arg,mobile=True,noTracker=True)
self.rect.update(self.point)
elif arg["Type"] == "SoMouseButtonEvent":
if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
if (arg["Position"] == self.pos):
self.finish()
else:
if (not self.node) and (not self.support):
getSupport(arg)
self.point,ctrlPoint,info = getPoint(self,arg,mobile=True,noTracker=True)
if self.point:
self.ui.redraw()
self.appendPoint(self.point)
def numericInput(self,numx,numy,numz):
"this function gets called by the toolbar when valid x, y, and z have been entered there"
self.point = Vector(numx,numy,numz)
self.appendPoint(self.point)
def appendPoint(self,point):
self.node.append(point)
if (len(self.node) > 1):
self.rect.update(point)
self.createObject()
else:
msg(translate("draft", "Pick opposite point:\n"))
self.ui.setRelative()
self.rect.setorigin(point)
self.rect.on()
if self.planetrack:
self.planetrack.set(point)
class Arc(Creator):
"the Draft_Arc FreeCAD command definition"
def __init__(self):
self.closedCircle=False
self.featureName = "Arc"
def GetResources(self):
return {'Pixmap' : 'Draft_Arc',
'Accel' : "A, R",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_Arc", "Arc"),
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Draft_Arc", "Creates an arc. CTRL to snap, SHIFT to constrain")}
def Activated(self):
Creator.Activated(self,self.featureName)
if self.ui:
self.step = 0
self.center = None
self.rad = None
self.angle = 0 # angle inscribed by arc
self.tangents = []
self.tanpoints = []
if self.featureName == "Arc": self.ui.arcUi()
else: self.ui.circleUi()
self.altdown = False
self.ui.sourceCmd = self
self.linetrack = lineTracker(dotted=True)
self.arctrack = arcTracker()
self.call = self.view.addEventCallback("SoEvent",self.action)
msg(translate("draft", "Pick center point:\n"))
def finish(self,closed=False,cont=False):
"finishes the arc"
Creator.finish(self)
if self.ui:
self.linetrack.finalize()
self.arctrack.finalize()
self.doc.recompute()
if self.ui:
if self.ui.continueMode:
self.Activated()
def updateAngle(self, angle):
# previous absolute angle
lastangle = self.firstangle + self.angle
if lastangle <= -2*math.pi: lastangle += 2*math.pi
if lastangle >= 2*math.pi: lastangle -= 2*math.pi
# compute delta = change in angle: