224 lines
10 KiB
Python
224 lines
10 KiB
Python
#***************************************************************************
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#* *
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#* Copyright (c) 2015 - Victor Titov (DeepSOIC) *
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#* <vv.titov@gmail.com> *
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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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#* This program 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 this program; 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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__title__="Linear array feature module for lattice workbench for FreeCAD"
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__author__ = "DeepSOIC"
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__url__ = ""
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import math
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import FreeCAD as App
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import Part
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from lattice2Common import *
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import lattice2BaseFeature
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import lattice2Executer
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import lattice2GeomUtils
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from lattice2ValueSeriesGenerator import ValueSeriesGenerator
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def makeLinearArray(name):
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'''makeLinearArray(name): makes a LinearArray object.'''
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return lattice2BaseFeature.makeLatticeFeature(name, LinearArray, ViewProviderLinearArray)
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class LinearArray(lattice2BaseFeature.LatticeFeature):
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"The Lattice LinearArray object"
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def derivedInit(self,obj):
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self.Type = "LatticeLinearArray"
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obj.addProperty("App::PropertyVector","Dir","Lattice Array","Vector that defines axis direction")
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obj.Dir = App.Vector(1,0,0)
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obj.addProperty("App::PropertyVector","Point","Lattice Array","Position of base (the point through which the axis passes, and from which positions of elements are measured)")
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obj.addProperty("App::PropertyLink","Link","Lattice Array","Link to the axis (Edge1 is used for the axis).")
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obj.addProperty("App::PropertyString","LinkSubelement","Lattice Array","subelement to take from axis link shape")
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obj.addProperty("App::PropertyBool","Reverse","Lattice Array","Set to true to reverse direction")
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obj.addProperty("App::PropertyBool","DirIsDriven","Lattice Array","If True, Dir property is driven by link.")
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obj.DirIsDriven = True
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obj.addProperty("App::PropertyBool","PointIsDriven","Lattice Array","If True, AxisPoint is not updated based on the link.")
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obj.PointIsDriven = True
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obj.addProperty("App::PropertyEnumeration","DrivenProperty","Lattice Array","Select, which property is to be driven by length of axis link.")
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obj.DrivenProperty = ['None','Span','SpanStart','SpanEnd','Step']
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obj.DrivenProperty = 'Step'
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obj.addProperty("App::PropertyEnumeration","OrientMode","Lattice Array","Orientation of elements")
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obj.OrientMode = ['None','Along axis']
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obj.OrientMode = 'Along axis'
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self.assureGenerator(obj)
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obj.ValuesSource = "Generator"
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obj.GeneratorMode = "StepN"
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obj.EndInclusive = True
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obj.SpanStart = 0.0
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obj.SpanEnd = 12.0
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obj.Step = 3.0
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obj.Count = 5.0
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def updateReadonlyness(self, obj):
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obj.setEditorMode("Dir", 1 if (obj.Link and obj.DirIsDriven) else 0)
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obj.setEditorMode("Point", 1 if (obj.Link and not obj.PointIsDriven) else 0)
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obj.setEditorMode("DirIsDriven", 0 if obj.Link else 1)
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obj.setEditorMode("PointIsDriven", 0 if obj.Link else 1)
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obj.setEditorMode("DrivenProperty", 0 if obj.Link else 1)
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self.generator.updateReadonlyness()
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def assureGenerator(self, obj):
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'''Adds an instance of value series generator, if one doesn't exist yet.'''
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if hasattr(self,"generator"):
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return
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self.generator = ValueSeriesGenerator(obj)
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self.generator.addProperties(groupname= "Lattice Array",
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groupname_gen= "Lattice Series Generator",
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valuesdoc= "List of distances. Distance is measured from Point, along Dir, in millimeters.",
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valuestype= "App::PropertyDistance")
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self.updateReadonlyness(obj)
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def derivedExecute(self,obj):
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self.assureGenerator(obj)
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self.updateReadonlyness(obj)
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# Apply links
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if obj.Link:
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if lattice2BaseFeature.isObjectLattice(obj.Link):
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lattice2Executer.warning(obj,"For polar array, axis link is expected to be a regular shape. Lattice objct was supplied instead, it's going to be treated as a generic shape.")
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#resolve the link
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if len(obj.LinkSubelement) > 0:
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linkedShape = obj.Link.Shape.getElement(obj.LinkSubelement)
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else:
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linkedShape = obj.Link.Shape
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#Type check
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if linkedShape.ShapeType != 'Edge':
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raise ValueError('Axis link must be an edge; it is '+linkedShape.ShapeType+' instead.')
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if type(linkedShape.Curve) is not Part.Line:
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raise ValueError('Axis link must be a line; it is '+type(linkedShape.Curve)+' instead.')
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#obtain
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dir = linkedShape.Curve.EndPoint - linkedShape.Curve.StartPoint
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point = linkedShape.Curve.StartPoint if not obj.Reverse else linkedShape.Curve.EndPoint
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if obj.DirIsDriven:
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obj.Dir = dir
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if obj.PointIsDriven:
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obj.Point = point
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if obj.DrivenProperty != 'None':
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if obj.DrivenProperty == 'Span':
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propname = "SpanEnd"
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obj.SpanEnd = obj.SpanStart + App.Units.Quantity('mm')*dir.Length
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else:
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propname = obj.DrivenProperty
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setattr(obj, propname, dir.Length)
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if self.generator.isPropertyControlledByGenerator(propname):
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lattice2Executer.warning(obj, "Property "+propname+" is driven by both generator and link. Generator has priority.")
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# Generate series of values
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self.generator.execute()
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values = [float(strv) for strv in obj.Values]
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#Apply reversal
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if obj.Reverse:
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obj.Dir = obj.Dir*(-1.0)
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if not(obj.DirIsDriven and obj.Link):
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obj.Reverse = False
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# precompute orientation
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if obj.OrientMode == 'Along axis':
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ori = lattice2GeomUtils.makeOrientationFromLocalAxes(ZAx= obj.Dir).multiply(
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lattice2GeomUtils.makeOrientationFromLocalAxes(ZAx= App.Vector(1,0,0), XAx= App.Vector(0,0,1)) )
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else:
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ori = App.Rotation()
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dir = obj.Dir
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dir.normalize()
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# Make the array
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output = [] # list of placements
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for v in values:
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output.append( App.Placement(obj.Point + obj.Dir*v, ori) )
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return output
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class ViewProviderLinearArray(lattice2BaseFeature.ViewProviderLatticeFeature):
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def getIcon(self):
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return getIconPath('Lattice2_LinearArray.svg')
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# -------------------------- /document object --------------------------------------------------
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# -------------------------- Gui command --------------------------------------------------
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def CreateLinearArray(name):
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sel = FreeCADGui.Selection.getSelectionEx()
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FreeCAD.ActiveDocument.openTransaction("Create LinearArray")
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FreeCADGui.addModule("lattice2LinearArray")
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FreeCADGui.addModule("lattice2Executer")
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FreeCADGui.doCommand("f = lattice2LinearArray.makeLinearArray(name='"+name+"')")
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if len(sel) == 1:
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FreeCADGui.doCommand("f.Link = App.ActiveDocument."+sel[0].ObjectName)
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if sel[0].HasSubObjects:
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FreeCADGui.doCommand("f.LinkSubelement = '"+sel[0].SubElementNames[0]+"'")
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FreeCADGui.doCommand("lattice2Executer.executeFeature(f)")
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FreeCADGui.doCommand("f = None")
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FreeCAD.ActiveDocument.commitTransaction()
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class _CommandLinearArray:
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"Command to create LinearArray feature"
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def GetResources(self):
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return {'Pixmap' : getIconPath("Lattice2_LinearArray_New.svg"),
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'MenuText': QtCore.QT_TRANSLATE_NOOP("Lattice2_LinearArray","Generate linear array"),
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'Accel': "",
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'ToolTip': QtCore.QT_TRANSLATE_NOOP("Lattice2_LinearArray","Make a linear array lattice object (array of placements)")}
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def Activated(self):
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if len(FreeCADGui.Selection.getSelection()) < 2 :
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CreateLinearArray(name = "LinearArray")
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else:
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mb = QtGui.QMessageBox()
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mb.setIcon(mb.Icon.Warning)
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mb.setText(translate("Lattice2_LinearArray", "Either don't select anything, or select a linear edge to serve an axis. More than one object was selected, not supported.", None))
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mb.setWindowTitle(translate("Lattice2_LinearArray","Bad selection", None))
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mb.exec_()
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def IsActive(self):
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if FreeCAD.ActiveDocument:
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return True
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else:
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return False
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FreeCADGui.addCommand('Lattice2_LinearArray', _CommandLinearArray())
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exportedCommands = ['Lattice2_LinearArray']
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# -------------------------- /Gui command --------------------------------------------------
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