In Python 3 `super()` can be used without an argument in order to get the parent class, `super()`. In Python 2 the present class must be used as an argument, `super(ThisClass, self)`. This commit is done to support Python 2, as without it all Gui Command tools will be broken and will fail to launch, even if the unit tests pass. Also, set the `__metaclass__` variable to `type`. This is done to turn all classes into "new style" classes in Python 2. This is required so `super()` works correctly in this version of Pyton. This commit can be reverted once Python 2 support is completely dropped, and only Python 3 compatible code is used.
572 lines
23 KiB
Python
572 lines
23 KiB
Python
# ***************************************************************************
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# * (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
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# * (c) 2009, 2010 Ken Cline <cline@frii.com> *
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# * (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
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# * *
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# * This file is part of the FreeCAD CAx development system. *
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# * *
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# * This program is free software; you can redistribute it and/or modify *
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# * it under the terms of the GNU Lesser General Public License (LGPL) *
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# * as published by the Free Software Foundation; either version 2 of *
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# * the License, or (at your option) any later version. *
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# * for detail see the LICENCE text file. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, *
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# * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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# * GNU Library General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Library General Public *
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# * License along with FreeCAD; if not, write to the Free Software *
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# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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# * USA *
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# * *
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# ***************************************************************************
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"""Provides tools for trimming and extending lines with the Draft Workbench.
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It also extends closed faces to create solids, that is, it can be used
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to extrude a closed profile.
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Make sure the snapping is active so that the extrusion is done following
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the direction of a line, and up to the distance specified
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by the snapping point.
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"""
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## @package gui_trimex
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# \ingroup DRAFT
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# \brief Provides tools for trimming and extending lines.
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import math
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from PySide.QtCore import QT_TRANSLATE_NOOP
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import FreeCAD as App
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import FreeCADGui as Gui
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import Draft
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import Draft_rc
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import DraftVecUtils
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import draftutils.utils as utils
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import draftutils.gui_utils as gui_utils
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import draftguitools.gui_base_original as gui_base_original
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import draftguitools.gui_tool_utils as gui_tool_utils
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import draftguitools.gui_trackers as trackers
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from draftutils.messages import _msg, _err
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from draftutils.translate import translate, _tr
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# The module is used to prevent complaints from code checkers (flake8)
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True if Draft_rc.__name__ else False
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class Trimex(gui_base_original.Modifier):
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"""Gui Command for the Trimex tool.
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This tool trims or extends lines, wires and arcs,
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or extrudes single faces.
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SHIFT constrains to the last point
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or extrudes in direction to the face normal.
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"""
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def GetResources(self):
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"""Set icon, menu and tooltip."""
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_tip = ("Trims or extends the selected object, "
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"or extrudes single faces.\n"
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"CTRL snaps, SHIFT constrains to current segment "
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"or to normal, ALT inverts.")
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return {'Pixmap': 'Draft_Trimex',
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'Accel': "T, R",
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'MenuText': QT_TRANSLATE_NOOP("Draft_Trimex", "Trimex"),
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'ToolTip': QT_TRANSLATE_NOOP("Draft_Trimex", _tip)}
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def Activated(self):
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"""Execute when the command is called."""
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super(Trimex, self).Activated(name=_tr("Trimex"))
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self.edges = []
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self.placement = None
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self.ghost = []
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self.linetrack = None
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self.color = None
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self.width = None
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if self.ui:
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if not Gui.Selection.getSelection():
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self.ui.selectUi()
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_msg(translate("draft", "Select objects to trim or extend"))
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self.call = \
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self.view.addEventCallback("SoEvent",
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gui_tool_utils.selectObject)
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else:
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self.proceed()
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def proceed(self):
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"""Proceed with execution of the command after proper selection."""
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if self.call:
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self.view.removeEventCallback("SoEvent", self.call)
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sel = Gui.Selection.getSelection()
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if len(sel) == 2:
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self.trimObjects(sel)
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self.finish()
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return
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self.obj = sel[0]
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self.ui.trimUi()
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self.linetrack = trackers.lineTracker()
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import DraftGeomUtils
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import Part
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if "Shape" not in self.obj.PropertiesList:
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return
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if "Placement" in self.obj.PropertiesList:
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self.placement = self.obj.Placement
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if len(self.obj.Shape.Faces) == 1:
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# simple extrude mode, the object itself is extruded
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self.extrudeMode = True
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self.ghost = [trackers.ghostTracker([self.obj])]
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self.normal = self.obj.Shape.Faces[0].normalAt(0.5, 0.5)
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for v in self.obj.Shape.Vertexes:
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self.ghost.append(trackers.lineTracker())
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elif len(self.obj.Shape.Faces) > 1:
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# face extrude mode, a new object is created
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ss = Gui.Selection.getSelectionEx()[0]
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if len(ss.SubObjects) == 1:
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if ss.SubObjects[0].ShapeType == "Face":
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self.obj = self.doc.addObject("Part::Feature", "Face")
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self.obj.Shape = ss.SubObjects[0]
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self.extrudeMode = True
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self.ghost = [trackers.ghostTracker([self.obj])]
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self.normal = self.obj.Shape.Faces[0].normalAt(0.5, 0.5)
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for v in self.obj.Shape.Vertexes:
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self.ghost.append(trackers.lineTracker())
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else:
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# normal wire trimex mode
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self.color = self.obj.ViewObject.LineColor
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self.width = self.obj.ViewObject.LineWidth
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# self.obj.ViewObject.Visibility = False
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self.obj.ViewObject.LineColor = (0.5, 0.5, 0.5)
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self.obj.ViewObject.LineWidth = 1
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self.extrudeMode = False
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if self.obj.Shape.Wires:
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self.edges = self.obj.Shape.Wires[0].Edges
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self.edges = Part.__sortEdges__(self.edges)
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else:
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self.edges = self.obj.Shape.Edges
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self.ghost = []
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lc = self.color
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sc = (lc[0], lc[1], lc[2])
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sw = self.width
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for e in self.edges:
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if DraftGeomUtils.geomType(e) == "Line":
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self.ghost.append(trackers.lineTracker(scolor=sc,
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swidth=sw))
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else:
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self.ghost.append(trackers.arcTracker(scolor=sc,
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swidth=sw))
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if not self.ghost:
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self.finish()
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for g in self.ghost:
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g.on()
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self.activePoint = 0
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self.nodes = []
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self.shift = False
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self.alt = False
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self.force = None
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self.cv = None
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self.call = self.view.addEventCallback("SoEvent", self.action)
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_msg(translate("draft", "Pick distance"))
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def action(self, arg):
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"""Handle the 3D scene events.
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This is installed as an EventCallback in the Inventor view.
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Parameters
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----------
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arg: dict
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Dictionary with strings that indicates the type of event received
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from the 3D view.
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"""
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if arg["Type"] == "SoKeyboardEvent":
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if arg["Key"] == "ESCAPE":
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self.finish()
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elif arg["Type"] == "SoLocation2Event": # mouse movement detection
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self.shift = gui_tool_utils.hasMod(arg,
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gui_tool_utils.MODCONSTRAIN)
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self.alt = gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT)
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self.ctrl = gui_tool_utils.hasMod(arg, gui_tool_utils.MODSNAP)
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if self.extrudeMode:
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arg["ShiftDown"] = False
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elif hasattr(Gui, "Snapper"):
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Gui.Snapper.setSelectMode(not self.ctrl)
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wp = not(self.extrudeMode and self.shift)
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self.point, cp, info = gui_tool_utils.getPoint(self, arg,
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workingplane=wp)
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if gui_tool_utils.hasMod(arg, gui_tool_utils.MODSNAP):
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self.snapped = None
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else:
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self.snapped = self.view.getObjectInfo((arg["Position"][0],
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arg["Position"][1]))
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if self.extrudeMode:
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dist = self.extrude(self.shift)
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else:
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dist = self.redraw(self.point, self.snapped,
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self.shift, self.alt)
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self.ui.setRadiusValue(dist, unit="Length")
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self.ui.radiusValue.setFocus()
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self.ui.radiusValue.selectAll()
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gui_tool_utils.redraw3DView()
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elif arg["Type"] == "SoMouseButtonEvent":
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if (arg["State"] == "DOWN") and (arg["Button"] == "BUTTON1"):
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cursor = arg["Position"]
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self.shift = gui_tool_utils.hasMod(arg,
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gui_tool_utils.MODCONSTRAIN)
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self.alt = gui_tool_utils.hasMod(arg, gui_tool_utils.MODALT)
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if gui_tool_utils.hasMod(arg, gui_tool_utils.MODSNAP):
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self.snapped = None
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else:
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self.snapped = self.view.getObjectInfo((cursor[0],
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cursor[1]))
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self.trimObject()
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self.finish()
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def extrude(self, shift=False, real=False):
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"""Redraw the ghost in extrude mode."""
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self.newpoint = self.obj.Shape.Faces[0].CenterOfMass
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dvec = self.point.sub(self.newpoint)
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if not shift:
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delta = DraftVecUtils.project(dvec, self.normal)
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else:
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delta = dvec
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if self.force and delta.Length:
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ratio = self.force/delta.Length
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delta.multiply(ratio)
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if real:
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return delta
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self.ghost[0].trans.translation.setValue([delta.x, delta.y, delta.z])
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for i in range(1, len(self.ghost)):
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base = self.obj.Shape.Vertexes[i-1].Point
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self.ghost[i].p1(base)
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self.ghost[i].p2(base.add(delta))
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return delta.Length
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def redraw(self, point, snapped=None, shift=False, alt=False, real=None):
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"""Redraw the ghost normally."""
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# initializing
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reverse = False
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for g in self.ghost:
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g.off()
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if real:
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newedges = []
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import DraftGeomUtils
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import Part
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# finding the active point
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vlist = []
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for e in self.edges:
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vlist.append(e.Vertexes[0].Point)
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vlist.append(self.edges[-1].Vertexes[-1].Point)
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if shift:
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npoint = self.activePoint
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else:
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npoint = DraftGeomUtils.findClosest(point, vlist)
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if npoint > len(self.edges)/2:
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reverse = True
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if alt:
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reverse = not reverse
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self.activePoint = npoint
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# sorting out directions
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if reverse and (npoint > 0):
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npoint = npoint - 1
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if (npoint > len(self.edges) - 1):
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edge = self.edges[-1]
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ghost = self.ghost[-1]
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else:
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edge = self.edges[npoint]
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ghost = self.ghost[npoint]
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if reverse:
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v1 = edge.Vertexes[-1].Point
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v2 = edge.Vertexes[0].Point
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else:
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v1 = edge.Vertexes[0].Point
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v2 = edge.Vertexes[-1].Point
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# snapping
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if snapped:
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snapped = self.doc.getObject(snapped['Object'])
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if hasattr(snapped, "Shape"):
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pts = []
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for e in snapped.Shape.Edges:
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int = DraftGeomUtils.findIntersection(edge, e, True, True)
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if int:
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pts.extend(int)
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if pts:
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point = pts[DraftGeomUtils.findClosest(point, pts)]
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# modifying active edge
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if DraftGeomUtils.geomType(edge) == "Line":
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ve = DraftGeomUtils.vec(edge)
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chord = v1.sub(point)
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n = ve.cross(chord)
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if n.Length == 0:
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self.newpoint = point
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else:
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perp = ve.cross(n)
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proj = DraftVecUtils.project(chord, perp)
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self.newpoint = App.Vector.add(point, proj)
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dist = v1.sub(self.newpoint).Length
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ghost.p1(self.newpoint)
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ghost.p2(v2)
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self.ui.labelRadius.setText(translate("draft", "Distance"))
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self.ui.radiusValue.setToolTip(translate("draft",
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"The offset distance"))
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if real:
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if self.force:
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ray = self.newpoint.sub(v1)
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ray.multiply(self.force / ray.Length)
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self.newpoint = App.Vector.add(v1, ray)
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newedges.append(Part.LineSegment(self.newpoint, v2).toShape())
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else:
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center = edge.Curve.Center
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rad = edge.Curve.Radius
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ang1 = DraftVecUtils.angle(v2.sub(center))
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ang2 = DraftVecUtils.angle(point.sub(center))
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_rot_rad = DraftVecUtils.rotate(App.Vector(rad, 0, 0), -ang2)
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self.newpoint = App.Vector.add(center, _rot_rad)
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self.ui.labelRadius.setText(translate("draft", "Angle"))
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self.ui.radiusValue.setToolTip(translate("draft",
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"The offset angle"))
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dist = math.degrees(-ang2)
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# if ang1 > ang2:
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# ang1, ang2 = ang2, ang1
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# print("last calculated:",
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# math.degrees(-ang1),
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# math.degrees(-ang2))
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ghost.setEndAngle(-ang2)
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ghost.setStartAngle(-ang1)
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ghost.setCenter(center)
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ghost.setRadius(rad)
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if real:
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if self.force:
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angle = math.radians(self.force)
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newray = DraftVecUtils.rotate(App.Vector(rad, 0, 0),
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-angle)
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self.newpoint = App.Vector.add(center, newray)
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chord = self.newpoint.sub(v2)
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perp = chord.cross(App.Vector(0, 0, 1))
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scaledperp = DraftVecUtils.scaleTo(perp, rad)
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midpoint = App.Vector.add(center, scaledperp)
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_sh = Part.Arc(self.newpoint, midpoint, v2).toShape()
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newedges.append(_sh)
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ghost.on()
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# resetting the visible edges
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if not reverse:
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li = list(range(npoint + 1, len(self.edges)))
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else:
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li = list(range(npoint - 1, -1, -1))
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for i in li:
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edge = self.edges[i]
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ghost = self.ghost[i]
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if DraftGeomUtils.geomType(edge) == "Line":
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ghost.p1(edge.Vertexes[0].Point)
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ghost.p2(edge.Vertexes[-1].Point)
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else:
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ang1 = DraftVecUtils.angle(edge.Vertexes[0].Point.sub(center))
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ang2 = DraftVecUtils.angle(edge.Vertexes[-1].Point.sub(center))
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# if ang1 > ang2:
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# ang1, ang2 = ang2, ang1
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ghost.setEndAngle(-ang2)
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ghost.setStartAngle(-ang1)
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ghost.setCenter(edge.Curve.Center)
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ghost.setRadius(edge.Curve.Radius)
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if real:
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newedges.append(edge)
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ghost.on()
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# finishing
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if real:
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return newedges
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else:
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return dist
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def trimObject(self):
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"""Trim the actual object."""
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import Part
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if self.extrudeMode:
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delta = self.extrude(self.shift, real=True)
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# print("delta", delta)
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self.doc.openTransaction("Extrude")
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Gui.addModule("Draft")
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obj = Draft.extrude(self.obj, delta, solid=True)
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self.doc.commitTransaction()
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self.obj = obj
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else:
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edges = self.redraw(self.point, self.snapped,
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self.shift, self.alt, real=True)
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newshape = Part.Wire(edges)
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self.doc.openTransaction("Trim/extend")
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if utils.getType(self.obj) in ["Wire", "BSpline"]:
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p = []
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if self.placement:
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invpl = self.placement.inverse()
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for v in newshape.Vertexes:
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np = v.Point
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if self.placement:
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np = invpl.multVec(np)
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p.append(np)
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self.obj.Points = p
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elif utils.getType(self.obj) == "Part::Line":
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p = []
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if self.placement:
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invpl = self.placement.inverse()
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for v in newshape.Vertexes:
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np = v.Point
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if self.placement:
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np = invpl.multVec(np)
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p.append(np)
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if ((p[0].x == self.obj.X1)
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and (p[0].y == self.obj.Y1)
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and (p[0].z == self.obj.Z1)):
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self.obj.X2 = p[-1].x
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self.obj.Y2 = p[-1].y
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self.obj.Z2 = p[-1].z
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elif ((p[-1].x == self.obj.X1)
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and (p[-1].y == self.obj.Y1)
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and (p[-1].z == self.obj.Z1)):
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self.obj.X2 = p[0].x
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self.obj.Y2 = p[0].y
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self.obj.Z2 = p[0].z
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elif ((p[0].x == self.obj.X2)
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and (p[0].y == self.obj.Y2)
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and (p[0].z == self.obj.Z2)):
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self.obj.X1 = p[-1].x
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self.obj.Y1 = p[-1].y
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self.obj.Z1 = p[-1].z
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else:
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self.obj.X1 = p[0].x
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self.obj.Y1 = p[0].y
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self.obj.Z1 = p[0].z
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elif utils.getType(self.obj) == "Circle":
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angles = self.ghost[0].getAngles()
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# print("original", self.obj.FirstAngle," ",self.obj.LastAngle)
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# print("new", angles)
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if angles[0] > angles[1]:
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angles = (angles[1], angles[0])
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self.obj.FirstAngle = angles[0]
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self.obj.LastAngle = angles[1]
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else:
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self.obj.Shape = newshape
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self.doc.commitTransaction()
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self.doc.recompute()
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for g in self.ghost:
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g.off()
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def trimObjects(self, objectslist):
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"""Attempt to trim two objects together."""
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import Part
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import DraftGeomUtils
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wires = []
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for obj in objectslist:
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if not utils.getType(obj) in ["Wire", "Circle"]:
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_err(translate("draft",
|
|
"Unable to trim these objects, "
|
|
"only Draft wires and arcs are supported."))
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return
|
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if len(obj.Shape.Wires) > 1:
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_err(translate("draft",
|
|
"Unable to trim these objects, "
|
|
"too many wires"))
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return
|
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if len(obj.Shape.Wires) == 1:
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wires.append(obj.Shape.Wires[0])
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else:
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wires.append(Part.Wire(obj.Shape.Edges))
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ints = []
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edge1 = None
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edge2 = None
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for i1, e1 in enumerate(wires[0].Edges):
|
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for i2, e2 in enumerate(wires[1].Edges):
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i = DraftGeomUtils.findIntersection(e1, e2, dts=False)
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if len(i) == 1:
|
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ints.append(i[0])
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edge1 = i1
|
|
edge2 = i2
|
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if not ints:
|
|
_err(translate("draft", "These objects don't intersect."))
|
|
return
|
|
if len(ints) != 1:
|
|
_err(translate("draft", "Too many intersection points."))
|
|
return
|
|
|
|
v11 = wires[0].Vertexes[0].Point
|
|
v12 = wires[0].Vertexes[-1].Point
|
|
v21 = wires[1].Vertexes[0].Point
|
|
v22 = wires[1].Vertexes[-1].Point
|
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if DraftVecUtils.closest(ints[0], [v11, v12]) == 1:
|
|
last1 = True
|
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else:
|
|
last1 = False
|
|
if DraftVecUtils.closest(ints[0], [v21, v22]) == 1:
|
|
last2 = True
|
|
else:
|
|
last2 = False
|
|
for i, obj in enumerate(objectslist):
|
|
if i == 0:
|
|
ed = edge1
|
|
la = last1
|
|
else:
|
|
ed = edge2
|
|
la = last2
|
|
if utils.getType(obj) == "Wire":
|
|
if la:
|
|
pts = obj.Points[:ed + 1] + ints
|
|
else:
|
|
pts = ints + obj.Points[ed + 1:]
|
|
obj.Points = pts
|
|
else:
|
|
vec = ints[0].sub(obj.Placement.Base)
|
|
vec = obj.Placement.inverse().Rotation.multVec(vec)
|
|
_x = App.Vector(1, 0, 0)
|
|
_ang = -DraftVecUtils.angle(vec,
|
|
obj.Placement.Rotation.multVec(_x),
|
|
obj.Shape.Edges[0].Curve.Axis)
|
|
ang = math.degrees(_ang)
|
|
if la:
|
|
obj.LastAngle = ang
|
|
else:
|
|
obj.FirstAngle = ang
|
|
self.doc.recompute()
|
|
|
|
def finish(self, closed=False):
|
|
"""Terminate the operation of the Trimex tool."""
|
|
super(Trimex, self).finish()
|
|
self.force = None
|
|
if self.ui:
|
|
if self.linetrack:
|
|
self.linetrack.finalize()
|
|
if self.ghost:
|
|
for g in self.ghost:
|
|
g.finalize()
|
|
if self.obj:
|
|
self.obj.ViewObject.Visibility = True
|
|
if self.color:
|
|
self.obj.ViewObject.LineColor = self.color
|
|
if self.width:
|
|
self.obj.ViewObject.LineWidth = self.width
|
|
gui_utils.select(self.obj)
|
|
|
|
def numericRadius(self, dist):
|
|
"""Validate the entry fields in the user interface.
|
|
|
|
This function is called by the toolbar or taskpanel interface
|
|
when valid x, y, and z have been entered in the input fields.
|
|
"""
|
|
self.force = dist
|
|
self.trimObject()
|
|
self.finish()
|
|
|
|
|
|
Gui.addCommand('Draft_Trimex', Trimex())
|