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DraftTools.py
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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"
## @package DraftTools
# \ingroup DRAFT
# \brief GUI Commands of the Draft workbench
#
# This module contains all the FreeCAD commands
# of the Draft module
#---------------------------------------------------------------------------
# Generic stuff
#---------------------------------------------------------------------------
import sys, os, FreeCAD, FreeCADGui, WorkingPlane, math, re, Draft, Draft_rc, DraftVecUtils
from FreeCAD import Vector
from PySide import QtCore,QtGui
from DraftGui import todo, translate, utf8_decode
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 formatUnit(exp,unit="mm"):
'''returns a formatting string to set a number to the correct unit'''
return FreeCAD.Units.Quantity(exp,FreeCAD.Units.Length).UserString
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 won't be projected on the Working Plane. if noTracker is True, the
tracking line will not be displayed
'''
ui = FreeCADGui.draftToolBar
if target.node:
last = target.node[-1]
else:
last = None
amod = hasMod(args, MODSNAP)
cmod = hasMod(args, MODCONSTRAIN)
point = None
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
if not point:
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(mouseEvent=None):
"returns the supporting object and sets the working plane"
plane.save()
if mouseEvent:
return setWorkingPlaneToObjectUnderCursor(mouseEvent)
return setWorkingPlaneToSelectedObject()
def setWorkingPlaneToObjectUnderCursor(mouseEvent):
objectUnderCursor = Draft.get3DView().getObjectInfo((
mouseEvent["Position"][0],
mouseEvent["Position"][1]))
if not objectUnderCursor:
return None
try:
componentUnderCursor = getattr(
FreeCAD.ActiveDocument.getObject(
objectUnderCursor['Object']
).Shape,
objectUnderCursor["Component"])
if not plane.weak:
return None
if "Face" in objectUnderCursor["Component"]:
plane.alignToFace(componentUnderCursor)
else:
plane.alignToCurve(componentUnderCursor)
plane.weak = True
return objectUnderCursor
except:
pass
return None
def setWorkingPlaneToSelectedObject():
sel = FreeCADGui.Selection.getSelectionEx()
if len(sel) != 1:
return None
sel = sel[0]
if sel.HasSubObjects \
and len(sel.SubElementNames) == 1 \
and "Face" in sel.SubElementNames[0]:
if plane.weak:
plane.alignToFace(sel.SubObjects[0])
plane.weak = True
return sel.Object
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", noplanesetup=False, is_subtool=False):
if FreeCAD.activeDraftCommand and not is_subtool:
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()
if not noplanesetup:
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
if self.planetrack:
self.planetrack.finalize()
plane.restore()
if hasattr(FreeCADGui,"Snapper"):
FreeCADGui.Snapper.off()
if self.call:
try:
self.view.removeEventCallback("SoEvent",self.call)
except RuntimeError:
# the view has been deleted already
pass
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"
self.commitList.append((name,func))
def getStrings(self,addrot=None):
"returns a couple of useful strings for 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 and FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft").GetBool("useSupport",False):
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 not self.doc:
return
self.ui.selectPlaneUi()
FreeCAD.Console.PrintMessage(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"):
# coin detection happens before the selection got a chance of being updated, so we must delay
DraftGui.todo.delay(self.checkSelection,None)
def checkSelection(self):
if self.handle():
self.finish()
def handle(self):
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)
return True
elif Draft.getType(sel.Object) in ["WorkingPlaneProxy","BuildingPart"]:
plane.setFromPlacement(sel.Object.Placement,rebase=True)
plane.weak = False
if hasattr(sel.Object.ViewObject,"AutoWorkingPlane"):
if sel.Object.ViewObject.AutoWorkingPlane:
plane.weak = True
if hasattr(sel.Object.ViewObject,"RestoreView"):
if sel.Object.ViewObject.RestoreView:
if hasattr(sel.Object.ViewObject,"ViewData"):
if len(sel.Object.ViewObject.ViewData) >= 12:
d = sel.Object.ViewObject.ViewData
camtype = "orthographic"
if len(sel.Object.ViewObject.ViewData) == 13:
if d[12] == 1:
camtype = "perspective"
c = FreeCADGui.ActiveDocument.ActiveView.getCameraNode()
from pivy import coin
if isinstance(c,coin.SoOrthographicCamera):
if camtype == "perspective":
FreeCADGui.ActiveDocument.ActiveView.setCameraType("Perspective")
elif isinstance(c,coin.SoPerspectiveCamera):
if camtype == "orthographic":
FreeCADGui.ActiveDocument.ActiveView.setCameraType("Orthographic")
c = FreeCADGui.ActiveDocument.ActiveView.getCameraNode()
c.position.setValue([d[0],d[1],d[2]])
c.orientation.setValue([d[3],d[4],d[5],d[6]])
c.nearDistance.setValue(d[7])
c.farDistance.setValue(d[8])
c.aspectRatio.setValue(d[9])
c.focalDistance.setValue(d[10])
if camtype == "orthographic":
c.height.setValue(d[11])
else:
c.heightAngle.setValue(d[11])
if hasattr(sel.Object.ViewObject,"RestoreState"):
if sel.Object.ViewObject.RestoreState:
if hasattr(sel.Object.ViewObject,"VisibilityMap"):
if sel.Object.ViewObject.VisibilityMap:
for k,v in sel.Object.ViewObject.VisibilityMap.items():
o = FreeCADGui.ActiveDocument.getObject(k)
if o:
if o.Visibility != (v == "True"):
FreeCADGui.doCommand("FreeCADGui.ActiveDocument.getObject(\""+k+"\").Visibility = "+v)
self.display(plane.axis)
self.ui.wplabel.setText(sel.Object.Label)
self.ui.wplabel.setToolTip(translate("draft", "Current working plane")+": "+self.ui.wplabel.text())
return True
elif Draft.getType(sel.Object) == "SectionPlane":
plane.setFromPlacement(sel.Object.Placement,rebase=True)
plane.weak = False
self.display(plane.axis)
self.ui.wplabel.setText(sel.Object.Label)
self.ui.wplabel.setToolTip(translate("draft", "Current working plane")+": "+self.ui.wplabel.text())
return True
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)
return True
elif sel.SubElementNames[0] == "Plane":
plane.setFromPlacement(sel.Object.Placement,rebase=True)
self.display(plane.axis)
return True
elif len(sel.SubElementNames) == 3:
if ("Vertex" in sel.SubElementNames[0]) \
and ("Vertex" in sel.SubElementNames[1]) \
and ("Vertex" in sel.SubElementNames[2]):
plane.alignTo3Points(sel.SubObjects[0].Point,
sel.SubObjects[1].Point,
sel.SubObjects[2].Point,
self.offset)
self.display(plane.axis)
return True
elif sel.Object.isDerivedFrom("Part::Feature"):
if sel.Object.Shape:
if len(sel.Object.Shape.Faces) == 1:
plane.alignToFace(sel.Object.Shape.Faces[0], self.offset)
self.display(plane.axis)
return True
elif sel:
subs = []
import Part
for s in sel:
for so in s.SubObjects:
if isinstance(so,Part.Vertex):
subs.append(so)
if len(subs) == 3:
plane.alignTo3Points(subs[0].Point,
subs[1].Point,
subs[2].Point,
self.offset)
self.display(plane.axis)
return True
return False
def getCenterPoint(self,x,y,z):
if not self.ui.isCenterPlane:
return "0,0,0"
v = FreeCAD.Vector(x,y,z)
cam1 = FreeCAD.Vector(FreeCADGui.ActiveDocument.ActiveView.getCameraNode().position.getValue().getValue())
cam2 = FreeCADGui.ActiveDocument.ActiveView.getViewDirection()
vcam1 = DraftVecUtils.project(cam1,v)
a = vcam1.getAngle(cam2)
if a < 0.0001:
return "0,0,0"
d = vcam1.Length
L = d/math.cos(a)
vcam2 = DraftVecUtils.scaleTo(cam2,L)
cp = cam1.add(vcam2)
return str(cp.x)+","+str(cp.y)+","+str(cp.z)
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("+self.getCenterPoint(0,0,1)+"), FreeCAD.Vector(0,0,1), "+str(self.offset)+")")
self.display('Top')
self.finish()
elif arg == "XZ":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector("+self.getCenterPoint(0,-1,0)+"), FreeCAD.Vector(0,-1,0), "+str(self.offset)+")")
self.display('Front')
self.finish()
elif arg == "YZ":
FreeCADGui.doCommandGui("FreeCAD.DraftWorkingPlane.alignToPointAndAxis(FreeCAD.Vector("+self.getCenterPoint(1,0,0)+"), 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("+self.getCenterPoint(d.x,d.y,d.z)+"), 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('Auto')
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)
self.ui.wplabel.setToolTip(translate("draft", "Current working plane:",utf8_decode=True)+self.ui.wplabel.text())
FreeCADGui.doCommandGui("FreeCADGui.Snapper.setGrid(init=True)")
#---------------------------------------------------------------------------
# Geometry constructors
#---------------------------------------------------------------------------
def redraw3DView():
"""redraw3DView(): forces a redraw of 3d view."""
try:
FreeCADGui.ActiveDocument.ActiveView.redraw()
except AttributeError as err:
pass
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",noplanesetup=False):
DraftTool.Activated(self,name,noplanesetup)
if not noplanesetup:
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 not self.doc:
return
self.obj = None # stores the temp shape
self.oldWP = None # stores the WP if we modify it
if self.isWire:
self.ui.wireUi(name)
else:
self.ui.lineUi(name)
self.ui.setTitle(translate("draft", "Line"))
if sys.version_info.major < 3:
if isinstance(self.featureName,unicode):
self.featureName = self.featureName.encode("utf8")
self.obj=self.doc.addObject("Part::Feature",self.featureName)
Draft.formatObject(self.obj)
self.call = self.view.addEventCallback("SoEvent", self.action)
FreeCAD.Console.PrintMessage(translate("draft", "Pick first point")+"\n")
def action(self, arg):
"scene event handler"
if arg["Type"] == "SoKeyboardEvent" and arg["Key"] == "ESCAPE":
self.finish()
elif arg["Type"] == "SoLocation2Event":
self.point, ctrlPoint, info = getPoint(self, arg)
redraw3DView()
elif arg["Type"] == "SoMouseButtonEvent" and \
arg["State"] == "DOWN" and \
arg["Button"] == "BUTTON1":
if (arg["Position"] == self.pos):
return self.finish(False,cont=True)
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)
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
self.removeTemporaryObject()
if self.oldWP:
FreeCAD.DraftWorkingPlane = self.oldWP
if hasattr(FreeCADGui,"Snapper"):
FreeCADGui.Snapper.setGrid()
FreeCADGui.Snapper.restack()
self.oldWP = None
if (len(self.node) > 1):
FreeCADGui.addModule("Draft")
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),
'Draft.autogroup(line)',
'FreeCAD.ActiveDocument.recompute()'])
else:
# building command string
rot,sup,pts,fil = self.getStrings()
self.commit(translate("draft","Create Wire"),
['pl = FreeCAD.Placement()',
'pl.Rotation.Q = '+rot,
'pl.Base = '+DraftVecUtils.toString(self.node[0]),
'points = '+pts,
'line = Draft.makeWire(points,placement=pl,closed='+str(closed)+',face='+fil+',support='+sup+')',
'Draft.autogroup(line)',
'FreeCAD.ActiveDocument.recompute()'])
Creator.finish(self)
if self.ui and self.ui.continueMode:
self.Activated()
def removeTemporaryObject(self):
if self.obj:
try:
old = self.obj.Name
except ReferenceError:
# object already deleted, for some reason
pass
else:
todo.delay(self.doc.removeObject,old)
self.obj = None
def undolast(self):
"undoes last line segment"
if (len(self.node) > 1):
self.node.pop()
last = self.node[-1]
if self.obj.Shape.Edges:
edges = self.obj.Shape.Edges
if len(edges) > 1:
newshape = Part.makePolygon(self.node)
self.obj.Shape = newshape
else:
self.obj.ViewObject.hide()
# DNC: report on removal
#FreeCAD.Console.PrintMessage(translate("draft", "Removing last point")+"\n")
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
def drawSegment(self,point):
"draws a new segment"
if self.planetrack and self.node:
self.planetrack.set(self.node[-1])
if (len(self.node) == 1):
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
elif (len(self.node) == 2):
last = self.node[len(self.node)-2]
newseg = Part.LineSegment(last,point).toShape()
self.obj.Shape = newseg
self.obj.ViewObject.Visibility = True
if self.isWire:
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
else:
currentshape = self.obj.Shape.copy()
last = self.node[len(self.node)-2]
if not DraftVecUtils.equals(last,point):
newseg = Part.LineSegment(last,point).toShape()
newshape=currentshape.fuse(newseg)
self.obj.Shape = newshape
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\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])
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
def orientWP(self):
if hasattr(FreeCAD,"DraftWorkingPlane"):
if (len(self.node) > 1) and self.obj:
import DraftGeomUtils
n = DraftGeomUtils.getNormal(self.obj.Shape)
if not n:
n = FreeCAD.DraftWorkingPlane.axis
p = self.node[-1]
v = self.node[-2].sub(self.node[-1])
v = v.negative()
if not self.oldWP:
self.oldWP = FreeCAD.DraftWorkingPlane.copy()
FreeCAD.DraftWorkingPlane.alignToPointAndAxis(p,n,upvec=v)
if hasattr(FreeCADGui,"Snapper"):
FreeCADGui.Snapper.setGrid()
FreeCADGui.Snapper.restack()
if self.planetrack:
self.planetrack.set(self.node[-1])
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):
# allow to convert several Draft Lines to a Wire
if len(FreeCADGui.Selection.getSelection()) > 1:
edges = []
for o in FreeCADGui.Selection.getSelection():
if Draft.getType(o) != "Wire":
edges = []
break
edges.extend(o.Shape.Edges)
if edges:
try:
import Part
w = Part.Wire(edges)
except:
FreeCAD.Console.PrintError(translate("draft", "Unable to create a Wire from selected objects")+"\n")
else:
pts = ",".join([str(v.Point) for v in w.Vertexes])
pts = pts.replace("Vector","FreeCAD.Vector")
rems = ["FreeCAD.ActiveDocument.removeObject(\""+o.Name+"\")" for o in FreeCADGui.Selection.getSelection()]
FreeCADGui.addModule("Draft")
todo.delayCommit([(translate("draft","Convert to Wire"),
['wire = Draft.makeWire(['+pts+'])']+rems+['Draft.autogroup(wire)',
'FreeCAD.ActiveDocument.recompute()'])])
return
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])
redraw3DView()
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)
FreeCAD.Console.PrintMessage(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()
FreeCAD.Console.PrintMessage(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])
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
else:
spline = Part.BSplineCurve()
spline.interpolate(self.node, False)
self.obj.Shape = spline.toShape()
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point, or Finish (shift-F) or close (o)")+"\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 B-spline"),
['points = '+pts,
'spline = Draft.makeBSpline(points,closed='+str(closed)+',face='+fil+',support='+sup+')',
'Draft.autogroup(spline)',
'FreeCAD.ActiveDocument.recompute()'])
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)
self.degree = None
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],degree=self.degree) #existing points + this pointer position
redraw3DView()
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)
FreeCAD.Console.PrintMessage(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,degree=self.degree)
self.obj.Shape = self.updateShape(self.node)
FreeCAD.Console.PrintMessage(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])
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point")+"\n")
else:
self.obj.Shape = self.updateShape(self.node)
FreeCAD.Console.PrintMessage(translate("draft", "Pick next point, or Finish (shift-F) or close (o)")+"\n")
def updateShape(self, pts):
'''creates shape for display during creation process.'''
edges = []
if len(pts) >= 2: #allow lower degree segment
poles=pts[1:]
else:
poles=[]
if self.degree:
segpoleslst = [poles[x:x+self.degree] for x in range(0, len(poles), (self.degree or 1))]
else:
segpoleslst = [pts]
startpoint=pts[0]
for segpoles in segpoleslst:
c = Part.BezierCurve() #last segment may have lower degree
c.increase(len(segpoles))
c.setPoles([startpoint]+segpoles)
edges.append(Part.Edge(c))
startpoint = segpoles[-1]
w = Part.Wire(edges)
return(w)
def finish(self,closed=False,cont=False):
"terminates the operation and closes the poly if asked"
if self.ui:
if hasattr(self,"bezcurvetrack"):
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,
'bez = Draft.makeBezCurve(points,closed='+str(closed)+',support='+sup+',Degree='+str(self.degree)+')',
'Draft.autogroup(bez)'])
except:
print("Draft: error delaying commit")
Creator.finish(self)
if self.ui:
if self.ui.continueMode:
self.Activated()
class CubicBezCurve(Line):
"a FreeCAD command for creating a 3rd degree Bezier Curve"
def __init__(self):
Line.__init__(self,wiremode=True)
self.degree = 3
def GetResources(self):
return {'Pixmap' : 'Draft_CubicBezCurve',
#'Accel' : "B, Z",
'MenuText': QtCore.QT_TRANSLATE_NOOP("Draft_CubicBezCurve", "CubicBezCurve"),