New feature: ScLERP placement interpolation
only for FC version that is still in development
This commit is contained in:
DeepSOIC
parent
2690496fbe
commit
97d5400ed5
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@ -63,7 +63,7 @@ class Lattice2Workbench (Workbench):
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+ Lattice2.ArrayFeatures.JoinArrays.exportedCommands
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+ Lattice2.ArrayFeatures.ArrayFilter.exportedCommands
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+ Lattice2.ArrayFeatures.ProjectArray.exportedCommands
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+ Lattice2.ArrayFeatures.Resample.exportedCommands
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+ Lattice2.ArrayFeatures.InterpolateGroup.exportedCommands
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+ Lattice2.ArrayFeatures.PopulateCopies.exportedCommands
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+ Lattice2.ArrayFeatures.PopulateChildren.exportedCommands
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+ Lattice2.ArrayFeatures.Mirror.exportedCommands
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@ -2,6 +2,7 @@ import lattice2ArrayFilter as ArrayFilter
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import lattice2ArrayFromShape as ArrayFromShape
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import lattice2AttachablePlacement as AttachablePlacement
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import lattice2BaseFeature as BaseFeature
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import lattice2InterpolateGroup as InterpolateGroup
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import lattice2Invert as Invert
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import lattice2JoinArrays as JoinArrays
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import lattice2LinearArray as LinearArray
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@ -12,4 +13,5 @@ import lattice2PopulateChildren as PopulateChildren
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import lattice2PopulateCopies as PopulateCopies
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import lattice2ProjectArray as ProjectArray
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import lattice2Resample as Resample
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import lattice2ScLERP as ScLERP
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import lattice2Mirror as Mirror
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53
lattice2InterpolateGroup.py
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53
lattice2InterpolateGroup.py
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@ -0,0 +1,53 @@
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#***************************************************************************
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#* *
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#* Copyright (c) 2016 - 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__="Group command for interpolation features"
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__author__ = "DeepSOIC"
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import lattice2Resample as Resample
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import lattice2ScLERP as Sclerp
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import FreeCAD as App
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if App.GuiUp:
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import FreeCADGui
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class CommandInterpolateGroup:
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def GetCommands(self):
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ret = Resample.exportedCommands
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return tuple(Sclerp.exportedCommands + Resample.exportedCommands)
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def GetDefaultCommand(self): # return the index of the tuple of the default command.
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return 0
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def GetResources(self):
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return { 'MenuText': 'Interpolation features:',
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'ToolTip': 'Interpolation features (group): creating placements between occurrences.'}
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def IsActive(self): # optional
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return App.ActiveDocument is not None
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if App.GuiUp:
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FreeCADGui.addCommand('Lattice2_Interpolate_GroupCommand',CommandInterpolateGroup())
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exportedCommands = ['Lattice2_Interpolate_GroupCommand']
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183
lattice2ScLERP.py
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183
lattice2ScLERP.py
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@ -0,0 +1,183 @@
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#***************************************************************************
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#* *
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#* Copyright (c) 2019 - 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__="Lattice ScLERP object: interpolation between two placements."
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__author__ = "DeepSOIC"
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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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from lattice2ValueSeriesGenerator import ValueSeriesGenerator
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# -------------------------- document object --------------------------------------------------
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def makeLatticeScLERP(name):
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'''makeLatticeScLERP(name): makes a LatticeScLERP object.'''
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return lattice2BaseFeature.makeLatticeFeature(name, LatticeScLERP, ViewProviderLatticeScLERP)
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class LatticeScLERP(lattice2BaseFeature.LatticeFeature):
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"The Lattice ScLERP object"
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def derivedInit(self,host):
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host.addProperty("App::PropertyLink","Placement1Ref","Lattice ScLERP","First placement, or an array of two placements to interpolate between.")
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host.addProperty("App::PropertyLink","Placement2Ref","Lattice ScLERP","Second placement to interpolate between.")
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host.addProperty("App::PropertyBool","Shorten","Lattice ScLERP","Use shortest path. (if not, and angle difference of two placement exceeds 180 degrees, longer path will be taken)")
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host.Shorten = True
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self.assureGenerator(host)
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host.ValuesSource = "Generator"
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host.GeneratorMode = "SpanN"
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host.EndInclusive = True
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host.SpanStart = 0.0
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host.SpanEnd = 1.0
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host.Step = 1.0/11
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host.Count = 11
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def assureGenerator(self, host):
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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(host)
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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 parameter values. Values should be in range 0..1 for interpolation, and can be outside for extrapolation.",
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valuestype= "App::PropertyFloat")
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def updateReadonlyness(self, host):
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super(LatticeScLERP, self).updateReadonlyness(host)
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self.assureGenerator(host)
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self.generator.updateReadonlyness()
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#host.setEditorMode('ReferenceValue', 0 if host.ReferencePlacementOption == 'at custom value' else 2)
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def derivedExecute(self,host):
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self.assureGenerator(host)
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self.generator.execute()
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values = [float(strv) for strv in host.Values]
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input = lattice2BaseFeature.getPlacementsList(host.Placement1Ref)
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if host.Placement2Ref is not None:
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input.extend(lattice2BaseFeature.getPlacementsList(host.Placement2Ref))
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if len(input) != 2:
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raise ValueError("Need exactly 2 placements. {n} provided.".format(n= len(input)))
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plm1, plm2 = input
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# construct interpolation functions
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# prepare lists of input samples
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def plmByVal(val):
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return plm1.sclerp(val, plm2, host.Shorten)
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output = [plmByVal(val) for val in values]
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## update reference placement
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#ref = host.ReferencePlacementOption
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#if ref == 'external':
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# pass
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#elif ref == 'origin':
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# self.setReferencePlm(host, None)
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#elif ref == 'inherit':
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# self.setReferencePlm(host, lattice2BaseFeature.getReferencePlm(host.Base))
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#elif ref == 'SpanStart':
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# self.setReferencePlm(host, plmByVal(float(host.SpanStart)))
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#elif ref == 'SpanEnd':
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# self.setReferencePlm(host, plmByVal(float(host.SpanEnd)))
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#elif ref == 'at custom value':
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# self.setReferencePlm(host, plmByVal(float(host.ReferenceValue)))
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#elif ref == 'first placement':
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# self.setReferencePlm(host, output[0])
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#elif ref == 'last placement':
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# self.setReferencePlm(host, output[-1])
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#else:
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# raise NotImplementedError("Reference option not implemented: " + ref)
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#
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return output
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class ViewProviderLatticeScLERP(lattice2BaseFeature.ViewProviderLatticeFeature):
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def getIcon(self):
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return getIconPath('Lattice2_Resample.svg')
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def claimChildren(self):
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return [child for child in [self.Object.Placement1Ref,self.Object.Placement2Ref] if child is not None]
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# -------------------------- /document object --------------------------------------------------
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# -------------------------- Gui command --------------------------------------------------
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def CreateLatticeScLERP(name):
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sel = FreeCADGui.Selection.getSelectionEx()
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FreeCAD.ActiveDocument.openTransaction("Create LatticeScLERP")
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FreeCADGui.addModule("lattice2ScLERP")
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FreeCADGui.addModule("lattice2Executer")
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FreeCADGui.doCommand("f = lattice2ScLERP.makeLatticeScLERP(name='"+name+"')")
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FreeCADGui.doCommand("f.Placement1Ref = App.ActiveDocument."+sel[0].ObjectName)
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if len(sel) > 1:
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FreeCADGui.doCommand("f.Placement2Ref = App.ActiveDocument."+sel[1].ObjectName)
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FreeCADGui.doCommand("lattice2Executer.executeFeature(f)")
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FreeCAD.ActiveDocument.commitTransaction()
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class CommandLatticeScLERP:
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"Command to create LatticeScLERP feature"
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def GetResources(self):
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return {'Pixmap' : getIconPath("Lattice2_ScLERP.svg"),
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'MenuText': "Helical interpolation (ScLERP)",
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'Accel': "",
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'ToolTip': "Helical interpolation (ScLERP): divides the move from one placement to another into a number of equal-transform steps."}
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def Activated(self):
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try:
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if len(FreeCADGui.Selection.getSelection()) in [1, 2] :
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CreateLatticeScLERP(name = "ScLERP")
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else:
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infoMessage(
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"Helical interpolation (ScLERP)",
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"Lattice Helical interpolation (ScLERP) command. Interpolates between two placements using ScLERP."
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" It cretes a helical path between two placements, so that the placement moves and rotates by an"
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" equal transform for each step. \n\n"
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"Please select two placements, first. It can be two placements in one object, or two single placement objects."
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)
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except Exception as err:
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msgError(err)
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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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if FreeCAD.GuiUp:
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FreeCADGui.addCommand('Lattice2_ScLERP', CommandLatticeScLERP())
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exportedCommands = ['Lattice2_ScLERP'] if hasattr(App.Placement, 'sclerp') else []
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# -------------------------- /Gui command --------------------------------------------------
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