205 lines
8.9 KiB
Python
205 lines
8.9 KiB
Python
# ***************************************************************************
|
|
# * (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
|
|
# * (c) 2009, 2010 Ken Cline <cline@frii.com> *
|
|
# * (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
|
|
# * *
|
|
# * This file is part of the FreeCAD CAx development system. *
|
|
# * *
|
|
# * 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. *
|
|
# * *
|
|
# * FreeCAD 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 FreeCAD; if not, write to the Free Software *
|
|
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
|
|
# * USA *
|
|
# * *
|
|
# ***************************************************************************
|
|
"""Provides tools for creating ellipses with the Draft Workbench."""
|
|
## @package gui_ellipses
|
|
# \ingroup DRAFT
|
|
# \brief Provides tools for creating ellipses with the Draft Workbench.
|
|
|
|
import math
|
|
from PySide.QtCore import QT_TRANSLATE_NOOP
|
|
|
|
import FreeCAD as App
|
|
import FreeCADGui as Gui
|
|
import Draft_rc
|
|
import DraftVecUtils
|
|
import draftutils.utils as utils
|
|
import draftguitools.gui_base_original as gui_base_original
|
|
import draftguitools.gui_tool_utils as gui_tool_utils
|
|
import draftguitools.gui_trackers as trackers
|
|
from draftutils.translate import translate
|
|
from draftutils.messages import _msg, _err
|
|
|
|
# The module is used to prevent complaints from code checkers (flake8)
|
|
True if Draft_rc.__name__ else False
|
|
|
|
|
|
class Ellipse(gui_base_original.Creator):
|
|
"""Gui command for the Ellipse tool."""
|
|
|
|
def GetResources(self):
|
|
"""Set icon, menu and tooltip."""
|
|
_tip = "Creates an ellipse. CTRL to snap."
|
|
|
|
return {'Pixmap': 'Draft_Ellipse',
|
|
'Accel': "E, L",
|
|
'MenuText': QT_TRANSLATE_NOOP("Draft_Ellipse", "Ellipse"),
|
|
'ToolTip': QT_TRANSLATE_NOOP("Draft_Ellipse", _tip)}
|
|
|
|
def Activated(self):
|
|
"""Execute when the command is called."""
|
|
name = translate("draft", "Ellipse")
|
|
super().Activated(name)
|
|
if self.ui:
|
|
self.refpoint = None
|
|
self.ui.pointUi(name)
|
|
self.ui.extUi()
|
|
self.call = self.view.addEventCallback("SoEvent", self.action)
|
|
self.rect = trackers.rectangleTracker()
|
|
_msg(translate("draft", "Pick first point"))
|
|
|
|
def finish(self, closed=False, cont=False):
|
|
"""Terminate the operation."""
|
|
super().finish(self)
|
|
if self.ui:
|
|
self.rect.off()
|
|
self.rect.finalize()
|
|
if self.ui and self.ui.continueMode:
|
|
self.Activated()
|
|
|
|
def createObject(self):
|
|
"""Create the actual object in the current document."""
|
|
plane = App.DraftWorkingPlane
|
|
p1 = self.node[0]
|
|
p3 = self.node[-1]
|
|
diagonal = p3.sub(p1)
|
|
halfdiag = App.Vector(diagonal).multiply(0.5)
|
|
center = p1.add(halfdiag)
|
|
p2 = p1.add(DraftVecUtils.project(diagonal, plane.v))
|
|
p4 = p1.add(DraftVecUtils.project(diagonal, plane.u))
|
|
r1 = (p4.sub(p1).Length)/2
|
|
r2 = (p2.sub(p1).Length)/2
|
|
try:
|
|
# The command to run is built as a series of text strings
|
|
# to be commited through the `draftutils.todo.ToDo` class.
|
|
rot, sup, pts, fil = self.getStrings()
|
|
if r2 > r1:
|
|
r1, r2 = r2, r1
|
|
m = App.Matrix()
|
|
m.rotateZ(math.pi/2)
|
|
rot1 = App.Rotation()
|
|
rot1.Q = eval(rot)
|
|
rot2 = App.Placement(m)
|
|
rot2 = rot2.Rotation
|
|
rot = str((rot1.multiply(rot2)).Q)
|
|
if utils.getParam("UsePartPrimitives", False):
|
|
# Insert a Part::Primitive object
|
|
Gui.addModule("Part")
|
|
_cmd = 'FreeCAD.ActiveDocument.'
|
|
_cmd += 'addObject("Part::Ellipse", "Ellipse")'
|
|
_cmd_list = ['ellipse = ' + _cmd,
|
|
'ellipse.MajorRadius = ' + str(r1),
|
|
'ellipse.MinorRadius = ' + str(r2),
|
|
'pl = FreeCAD.Placement()',
|
|
'pl.Rotation.Q= ' + rot,
|
|
'pl.Base = ' + DraftVecUtils.toString(center),
|
|
'ellipse.Placement = pl',
|
|
'Draft.autogroup(ellipse)',
|
|
'FreeCAD.ActiveDocument.recompute()']
|
|
self.commit(translate("draft", "Create Ellipse"),
|
|
_cmd_list)
|
|
else:
|
|
# Insert a Draft ellipse
|
|
Gui.addModule("Draft")
|
|
_cmd = 'Draft.makeEllipse'
|
|
_cmd += '('
|
|
_cmd += str(r1) + ', ' + str(r2) + ', '
|
|
_cmd += 'placement=pl, '
|
|
_cmd += 'face=' + fil + ', '
|
|
_cmd += 'support=' + sup
|
|
_cmd += ')'
|
|
_cmd_list = ['pl = FreeCAD.Placement()',
|
|
'pl.Rotation.Q = ' + rot,
|
|
'pl.Base = ' + DraftVecUtils.toString(center),
|
|
'ellipse = ' + _cmd,
|
|
'Draft.autogroup(ellipse)',
|
|
'FreeCAD.ActiveDocument.recompute()']
|
|
self.commit(translate("draft", "Create Ellipse"),
|
|
_cmd_list)
|
|
except Exception:
|
|
_err("Draft: Error: Unable to create object.")
|
|
self.finish(cont=True)
|
|
|
|
def action(self, arg):
|
|
"""Handle the 3D scene events.
|
|
|
|
This is installed as an EventCallback in the Inventor view.
|
|
|
|
Parameters
|
|
----------
|
|
arg: dict
|
|
Dictionary with strings that indicates the type of event received
|
|
from the 3D view.
|
|
"""
|
|
if arg["Type"] == "SoKeyboardEvent":
|
|
if arg["Key"] == "ESCAPE":
|
|
self.finish()
|
|
elif arg["Type"] == "SoLocation2Event": # mouse movement detection
|
|
(self.point,
|
|
ctrlPoint, info) = gui_tool_utils.getPoint(self, arg,
|
|
mobile=True,
|
|
noTracker=True)
|
|
self.rect.update(self.point)
|
|
gui_tool_utils.redraw3DView()
|
|
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):
|
|
gui_tool_utils.getSupport(arg)
|
|
(self.point,
|
|
ctrlPoint, info) = gui_tool_utils.getPoint(self, arg,
|
|
mobile=True,
|
|
noTracker=True)
|
|
if self.point:
|
|
self.ui.redraw()
|
|
self.appendPoint(self.point)
|
|
|
|
def numericInput(self, numx, numy, numz):
|
|
"""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.point = App.Vector(numx, numy, numz)
|
|
self.appendPoint(self.point)
|
|
|
|
def appendPoint(self, point):
|
|
"""Append the point to the list of nodes."""
|
|
self.node.append(point)
|
|
if len(self.node) > 1:
|
|
self.rect.update(point)
|
|
self.createObject()
|
|
else:
|
|
_msg(translate("draft", "Pick opposite point"))
|
|
self.ui.setRelative()
|
|
self.rect.setorigin(point)
|
|
self.rect.on()
|
|
if self.planetrack:
|
|
self.planetrack.set(point)
|
|
|
|
|
|
Gui.addCommand('Draft_Ellipse', Ellipse())
|