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a2plib.py
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#***************************************************************************
#* *
#* Copyright (c) 2018 kbwbe *
#* *
#* Portions of code based on hamish's assembly 2 *
#* *
#* 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 *
#* *
#***************************************************************************
import FreeCAD
import FreeCADGui
from FreeCAD import Base
import Part
from PySide import QtGui
from PySide import QtCore
import os
import sys
import copy
import platform
import numpy
PYVERSION = sys.version_info[0]
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
USE_PROJECTFILE = preferences.GetBool('useProjectFolder', False)
PARTIAL_PROCESSING_ENABLED = preferences.GetBool('usePartialSolver', True)
AUTOSOLVE_ENABLED = preferences.GetBool('autoSolve', True)
RELATIVE_PATHES_ENABLED = preferences.GetBool('useRelativePathes',True)
FORCE_FIXED_POSITION = preferences.GetBool('forceFixedPosition',True)
SHOW_CONSTRAINTS_ON_TOOLBAR= preferences.GetBool('showConstraintsOnToolbar',True)
RECURSIVE_UPDATE_ENABLED = preferences.GetBool('enableRecursiveUpdate',False)
USE_SOLID_UNION = preferences.GetBool('useSolidUnion',True)
# if SIMULATION_STATE == True assemblies are solved with less accuracy
SIMULATION_STATE = False
SAVED_TRANSPARENCY = []
DEBUGPROGRAM = 1
path_a2p = os.path.dirname(__file__)
path_a2p_resources = os.path.join( path_a2p, 'GuiA2p', 'Resources', 'resources.rcc')
resourcesLoaded = QtCore.QResource.registerResource(path_a2p_resources)
assert resourcesLoaded
wb_globals = {}
RED = (1.0,0.0,0.0)
GREEN = (0.0,1.0,0.0)
BLUE = (0.0,0.0,1.0)
YELLOW = (1.0,1.0,0.0)
WHITE = (1.0,1.0,1.0)
BLACK = (0.0,0.0,0.0)
# DEFINE DEBUG LEVELS FOR CONSOLE OUTPUT
A2P_DEBUG_NONE = 0
A2P_DEBUG_1 = 1
A2P_DEBUG_2 = 2
A2P_DEBUG_3 = 3
A2P_DEBUG_LEVEL = A2P_DEBUG_NONE
PARTIAL_SOLVE_STAGE1 = 1 #solve all rigid fully constrained to tempfixed rigid, enable only involved dep, then set them as tempfixed
CONSTRAINT_DIALOG_REF = None
CONSTRAINT_EDITOR__REF = None
CONSTRAINT_VIEWMODE = False
# This Icon map is necessary to show correct icons within very old assemblies
A2P_CONSTRAINTS_ICON_MAP = {
# constraintType: iconPath
'pointIdentity': ':/icons/a2p_PointIdentity.svg',
'pointOnLine': ':/icons/a2p_PointOnLineConstraint.svg',
'pointOnPlane': ':/icons/a2p_PointOnPlaneConstraint.svg',
'circularEdge': ':/icons/a2p_CircularEdgeConstraint.svg',
'axial': ':/icons/a2p_AxialConstraint.svg',
'axisParallel': ':/icons/a2p_AxisParallelConstraint.svg',
'axisPlaneParallel': ':/icons/a2p_AxisPlaneParallelConstraint.svg',
'axisPlaneNormal': ':/icons/a2p_AxisPlaneNormalConstraint.svg',
'axisPlaneAngle': ':/icons/a2p_AxisPlaneAngleConstraint.svg',
'planesParallel': ':/icons/a2p_PlanesParallelConstraint.svg',
'plane': ':/icons/a2p_PlaneCoincidentConstraint.svg',
'angledPlanes': ':/icons/a2p_AngleConstraint.svg',
'sphereCenterIdent': ':/icons/a2p_SphericalSurfaceConstraint.svg',
'CenterOfMass': ':/icons/a2p_CenterOfMassConstraint.svg'
}
#------------------------------------------------------------------------------
# Detect the operating system...
#------------------------------------------------------------------------------
tmp = platform.system()
tmp = tmp.upper()
tmp = tmp.split(' ')
OPERATING_SYSTEM = 'UNKNOWN'
if "WINDOWS" in tmp:
OPERATING_SYSTEM = "WINDOWS"
elif "LINUX" in tmp:
OPERATING_SYSTEM = "LINUX"
else:
OPERATING_SYSTEM = "OTHER"
#------------------------------------------------------------------------------
def to_bytes(tx):
if PYVERSION > 2:
if isinstance(tx, str):
value = tx.encode("utf-8")
else:
value = tx
else:
if isinstance(tx,unicode):
value = tx.encode("utf-8")
else:
value = tx
return value # Instance of bytes
#------------------------------------------------------------------------------
def to_str(tx):
if PYVERSION > 2:
if isinstance(tx, bytes):
value = tx.decode("utf-8")
else:
value = tx
else:
if isinstance(tx, unicode):
value = tx
else:
value = tx.decode("utf-8")
return value # Instance of unicode string
#------------------------------------------------------------------------------
def setSimulationState(boolVal):
global SIMULATION_STATE
SIMULATION_STATE = boolVal
#------------------------------------------------------------------------------
def doNotImportInvisibleShapes():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('doNotImportInvisibleShapes',True)
#------------------------------------------------------------------------------
def getPerFaceTransparency():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('usePerFaceTransparency',False)
#------------------------------------------------------------------------------
def getNativeFileManagerUsage():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('useNativeFileManager',False)
#------------------------------------------------------------------------------
def getRecalculateImportedParts():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('recalculateImportedParts',False)
#------------------------------------------------------------------------------
def getRecursiveUpdateEnabled():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('enableRecursiveUpdate',False)
#------------------------------------------------------------------------------
def getForceFixedPosition():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('forceFixedPosition',False)
#------------------------------------------------------------------------------
def getUseSolidUnion():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('useSolidUnion',False)
#------------------------------------------------------------------------------
def getConstraintEditorRef():
global CONSTRAINT_EDITOR__REF
return CONSTRAINT_EDITOR__REF
#------------------------------------------------------------------------------
def setConstraintEditorRef(ref):
global CONSTRAINT_EDITOR__REF
CONSTRAINT_EDITOR__REF = ref
#------------------------------------------------------------------------------
def setConstraintViewMode(active):
global CONSTRAINT_VIEWMODE
CONSTRAINT_VIEWMODE = active
#------------------------------------------------------------------------------
def getConstraintViewMode():
global CONSTRAINT_VIEWMODE
return CONSTRAINT_VIEWMODE
#------------------------------------------------------------------------------
def getConstraintDialogRef():
global CONSTRAINT_DIALOG_REF
return CONSTRAINT_DIALOG_REF
#------------------------------------------------------------------------------
def setConstraintDialogRef(ref):
global CONSTRAINT_DIALOG_REF
CONSTRAINT_DIALOG_REF = ref
#------------------------------------------------------------------------------
def getUseTopoNaming():
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
return preferences.GetBool('useTopoNaming',False)
#------------------------------------------------------------------------------
def getRelativePathesEnabled():
global RELATIVE_PATHES_ENABLED
return RELATIVE_PATHES_ENABLED
#------------------------------------------------------------------------------
def setAutoSolve(enabled):
global AUTOSOLVE_ENABLED
AUTOSOLVE_ENABLED = enabled
#------------------------------------------------------------------------------
def getAutoSolveState():
return AUTOSOLVE_ENABLED
#------------------------------------------------------------------------------
def setPartialProcessing(enabled):
global PARTIAL_PROCESSING_ENABLED
PARTIAL_PROCESSING_ENABLED = enabled
#------------------------------------------------------------------------------
def isPartialProcessing():
return PARTIAL_PROCESSING_ENABLED
#------------------------------------------------------------------------------
def filterShapeObs(_list, allowSketches=False):
lst = []
for ob in _list:
if allowSketches == True:
if ob.Name.startswith("Sketch"):
lst.append(ob)
continue
if (
#Following object now have App::GeoFeatureGroupExtension in FC0.19
#prevent them from beeing filtered out.
ob.Name.startswith("Boolean") or
ob.Name.startswith("Body")
):
pass
elif ob.hasExtension('App::GeoFeatureGroupExtension'):
#Part Containers within FC0.19.18405 seem to have a shape property..
#filter it out
continue
elif ob.Name.startswith("Group"):
#Group Containers within FC0.19 (Release >= 2020/03/31) seem to have a shape property..
#filter it out
continue
if hasattr(ob,"Shape"):
if len(ob.Shape.Faces) > 0 and len(ob.Shape.Vertexes) > 0:
lst.append(ob)
S = set(lst)
lst = []
lst.extend(S)
return lst
#------------------------------------------------------------------------------
def setTransparency():
global SAVED_TRANSPARENCY
# Save Transparency of Objects and make all transparent
doc = FreeCAD.ActiveDocument
if len(SAVED_TRANSPARENCY) > 0:
# Transparency is already saved, no need to set transparency again
return
shapedObs = filterShapeObs(doc.Objects) # filter out partlist, spreadsheets etc..
sel = FreeCADGui.Selection
for obj in shapedObs:
if hasattr(obj,'ViewObject'): # save "all-in" *MK
if hasattr(obj.ViewObject,'DiffuseColor'):
SAVED_TRANSPARENCY.append(
(obj.Name, obj.ViewObject.Transparency, obj.ViewObject.ShapeColor, obj.ViewObject.DiffuseColor)
)
else:
SAVED_TRANSPARENCY.append(
(obj.Name, obj.ViewObject.Transparency, obj.ViewObject.ShapeColor, None)
)
obj.ViewObject.Transparency = 80
sel.addSelection(obj) # Transparency workaround. Transparency is taken when once been selected
sel.clearSelection()
#------------------------------------------------------------------------------
def restoreTransparency():
global SAVED_TRANSPARENCY
# restore transparency of objects...
doc = FreeCAD.ActiveDocument
sel = FreeCADGui.Selection
for setting in SAVED_TRANSPARENCY:
obj = doc.getObject(setting[0])
if obj is not None: # restore "all-in" *MK
obj.ViewObject.Transparency = setting[1]
obj.ViewObject.ShapeColor = setting[2]
obj.ViewObject.DiffuseColor = setting[3] # diffuse always at last
sel.addSelection(obj)
sel.clearSelection()
SAVED_TRANSPARENCY = []
#------------------------------------------------------------------------------
def isTransparencyEnabled():
global SAVED_TRANSPARENCY
return (len(SAVED_TRANSPARENCY) > 0)
#------------------------------------------------------------------------------
def getSelectedConstraint():
# Check that constraint is selected
selection = [s for s in FreeCADGui.Selection.getSelection() if s.Document == FreeCAD.ActiveDocument ]
if len(selection) == 0: return None
connectionToView = selection[0]
if not 'ConstraintInfo' in connectionToView.Content and not 'ConstraintNfo' in connectionToView.Content:
return None
return connectionToView
#------------------------------------------------------------------------------
def appVersionStr():
version = int(FreeCAD.Version()[0])
subVersion = int(float(FreeCAD.Version()[1]))
return "%03d.%03d" %(version,subVersion)
#------------------------------------------------------------------------------
def numpyVecToFC(nv):
assert len(nv) == 3
return Base.Vector(nv[0],nv[1],nv[2])
#------------------------------------------------------------------------------
def fit_rotation_axis_to_surface1( surface, n_u=3, n_v=3 ):
'should work for cylinders and possibly cones (depending on the u,v mapping)'
uv = sum( [ [ (u,v) for u in numpy.linspace(0,1,n_u)] for v in numpy.linspace(0,1,n_v) ], [] )
P = [ numpy.array(surface.value(u,v)) for u,v in uv ] #positions at u,v points
N = [ numpy.cross( *surface.tangent(u,v) ) for u,v in uv ]
intersections = []
for i in range(len(N)-1):
for j in range(i+1,len(N)):
# based on the distance_between_axes( p1, u1, p2, u2) function,
if 1 - abs(numpy.dot( N[i], N[j])) < 10**-6:
continue #ignore parrallel case
p1_x, p1_y, p1_z = P[i]
u1_x, u1_y, u1_z = N[i]
p2_x, p2_y, p2_z = P[j]
u2_x, u2_y, u2_z = N[j]
t1_t1_coef = u1_x**2 + u1_y**2 + u1_z**2 #should equal 1
t1_t2_coef = -2*u1_x*u2_x - 2*u1_y*u2_y - 2*u1_z*u2_z # collect( expand(d_sqrd), [t1*t2] )
t2_t2_coef = u2_x**2 + u2_y**2 + u2_z**2 #should equal 1 too
t1_coef = 2*p1_x*u1_x + 2*p1_y*u1_y + 2*p1_z*u1_z - 2*p2_x*u1_x - 2*p2_y*u1_y - 2*p2_z*u1_z
t2_coef =-2*p1_x*u2_x - 2*p1_y*u2_y - 2*p1_z*u2_z + 2*p2_x*u2_x + 2*p2_y*u2_y + 2*p2_z*u2_z
A = numpy.array([ [ 2*t1_t1_coef , t1_t2_coef ] , [ t1_t2_coef, 2*t2_t2_coef ] ])
b = numpy.array([ t1_coef, t2_coef])
try:
t1, t2 = numpy.linalg.solve(A,-b)
except numpy.linalg.LinAlgError:
continue #print('distance_between_axes, failed to solve problem due to LinAlgError, using numerical solver instead')
pos_t1 = P[i] + numpy.array(N[i])*t1
pos_t2 = P[j] + N[j]*t2
intersections.append( pos_t1 )
intersections.append( pos_t2 )
if len(intersections) < 2:
error = numpy.inf
return None, None, error
else: #fit vector to intersection points; http://mathforum.org/library/drmath/view/69103.html
X = numpy.array(intersections)
centroid = numpy.mean(X,axis=0)
M = numpy.array([i - centroid for i in intersections ])
A = numpy.dot(M.transpose(), M)
U,s,V = numpy.linalg.svd(A) #numpy docs: s : (..., K) The singular values for every matrix, sorted in descending order.
axis_pos = centroid
axis_dir = V[0]
error = s[1] #dont know if this will work
return numpyVecToFC(axis_dir), numpyVecToFC(axis_pos), error
#------------------------------------------------------------------------------
def fit_plane_to_surface1( surface, n_u=3, n_v=3 ):
uv = sum( [ [ (u,v) for u in numpy.linspace(0,1,n_u)] for v in numpy.linspace(0,1,n_v) ], [] )
P = [ surface.value(u,v) for u,v in uv ] #positions at u,v points
N = [ numpy.cross( *surface.tangent(u,v) ) for u,v in uv ]
plane_norm = sum(N) / len(N) #plane's normal, averaging done to reduce error
plane_pos = P[0]
error = sum([ abs( numpy.dot(p - plane_pos, plane_norm) ) for p in P ])
return numpyVecToFC(plane_norm), numpyVecToFC(plane_pos), error
#------------------------------------------------------------------------------
def isLine(param):
if hasattr(Part,"LineSegment"):
return isinstance(param,(Part.Line,Part.LineSegment))
else:
return isinstance(param,Part.Line)
#------------------------------------------------------------------------------
def getObjectFaceFromName( obj, faceName ):
assert faceName.startswith('Face')
ind = int( faceName[4:]) -1
return obj.Shape.Faces[ind]
#------------------------------------------------------------------------------
def getProjectFolder():
'''
#------------------------------------------------------------------------------------
# A new Parameter is required: projectFolder...
# All Parts will be searched below this projectFolder-Value...
#------------------------------------------------------------------------------------
'''
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
if not preferences.GetBool('useProjectFolder', False): return ""
return preferences.GetString('projectFolder', '~')
#------------------------------------------------------------------------------
def pathToOS(path):
if path is None: return None
p = to_str(path)
if OPERATING_SYSTEM == 'WINDOWS':
p = p.replace(u'/',u'\\')
else:
p = p.replace(u'\\',u'/')
return p # unicode string
#------------------------------------------------------------------------------
def findFile(_name, _path):
'''
Searches a file within a directory and it's subdirectories
'''
name = to_str(_name)
path = to_str(_path)
for root, dirs, files in os.walk(path):
if name in files:
return os.path.join(root, name)
return None
#------------------------------------------------------------------------------
def findSourceFileInProject(_pathImportPart, _assemblyPath):
'''
#------------------------------------------------------------------------------------
# interpret the sourcefile name of imported part
# if working with preference "useProjectFolder:
# - path of sourcefile is ignored
# - filename is looked up beneath projectFolder
#
# if not working with preference "useProjectFolder":
# - path of sourcefile is checked for being relative to assembly or absolute
# - path is interpreted in appropriate way
#------------------------------------------------------------------------------------
'''
pathImportPart = _pathImportPart
assemblyPath = _assemblyPath
pathImportPart = to_bytes(pathImportPart)
assemblyPath = to_bytes(assemblyPath)
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
if not preferences.GetBool('useProjectFolder', False):
# not working with useProjectFolder preference,
# check whether path is relative or absolute...
if (
pathImportPart.startswith(b'../') or
pathImportPart.startswith(b'..\\') or
pathImportPart.startswith(b'./') or
pathImportPart.startswith(b'.\\')
):
# relative path
# calculate the absolute path
p1 = to_str(assemblyPath)
p2 = to_str(pathImportPart)
joinedPath = os.path.join(p1,p2)
absolutePath = os.path.normpath(joinedPath)
absolutePath = pathToOS(absolutePath)
return to_str(absolutePath)
else:
pathImportPart = pathToOS(pathImportPart)
return to_str(pathImportPart)
projectFolder = os.path.abspath(getProjectFolder()) # get normalized path
fileName = os.path.basename(pathImportPart)
retval = findFile(fileName,projectFolder)
retval = pathToOS(retval)
if retval:
return to_str(retval)
else:
return None
#------------------------------------------------------------------------------
def checkFileIsInProjectFolder(path):
preferences = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/A2plus")
if not preferences.GetBool('useProjectFolder', False): return True
projectFolder = os.path.abspath(getProjectFolder()) # get normalized path
fileName = os.path.basename(path)
nameInProject = findFile(fileName,projectFolder)
if nameInProject == path:
return True
else:
return False
#------------------------------------------------------------------------------
def pathOfModule():
return os.path.dirname(__file__)
#------------------------------------------------------------------------------
def Msg(tx):
FreeCAD.Console.PrintMessage(tx)
#------------------------------------------------------------------------------
def DebugMsg(level, tx):
if A2P_DEBUG_LEVEL >= level:
FreeCAD.Console.PrintMessage(tx)
#------------------------------------------------------------------------------
def drawSphere(center, color):
doc = FreeCAD.ActiveDocument
s = Part.makeSphere(2.0,center)
sphere = doc.addObject("Part::Feature","Sphere")
sphere.Shape = s
sphere.ViewObject.ShapeColor = color
doc.recompute()
#------------------------------------------------------------------------------
def drawVector(fromPoint,toPoint, color):
if fromPoint == toPoint: return
doc = FreeCAD.ActiveDocument
l = Part.LineSegment()
l.StartPoint = fromPoint
l.EndPoint = toPoint
line = doc.addObject("Part::Feature","Line")
line.Shape = l.toShape()
line.ViewObject.LineColor = color
line.ViewObject.LineWidth = 1
c = Part.makeCone(0,1,4)
cone = doc.addObject("Part::Feature","ArrowHead")
cone.Shape = c
cone.ViewObject.ShapeColor = color
#
mov = Base.Vector(0,0,0)
zAxis = Base.Vector(0,0,-1)
rot = FreeCAD.Rotation(zAxis,toPoint.sub(fromPoint))
cent = Base.Vector(0,0,0)
conePlacement = FreeCAD.Placement(mov,rot,cent)
cone.Placement = conePlacement.multiply(cone.Placement)
cone.Placement.move(toPoint)
doc.recompute()
#------------------------------------------------------------------------------
def findUnusedObjectName(base, counterStart=1, fmt='%03i', document=None):
if document is None:
document = FreeCAD.ActiveDocument
i = counterStart
usedNames = [ obj.Name for obj in document.Objects ]
if base[-4:-3] == '_':
base2 = base[:-4]
else:
base2 = base
base2 = base2 + '_'
objName = '%s%s' % (base2, fmt%i)
while objName in usedNames:
i += 1
objName = '%s%s' % (base2, fmt%i)
return objName
#------------------------------------------------------------------------------
def findUnusedObjectLabel(base, counterStart=1, fmt='%03i', document=None, extension=None):
if document is None:
document = FreeCAD.ActiveDocument
i = counterStart
usedLabels = [ obj.Label for obj in document.Objects ]
if base[-4:-3] == '_':
base2 = base[:-4]
else:
base2 = base
base2 = base2 + '_'
if extension is None:
base3 = base2
else:
base3 = base2+extension+'_'
objLabel = '%s%s' % (base3, fmt%i)
while objLabel in usedLabels:
i += 1
objLabel = '%s%s' % (base3, fmt%i)
return objLabel
#------------------------------------------------------------------------------
class ConstraintSelectionObserver:
def __init__(self, selectionGate, parseSelectionFunction,
taskDialog_title, taskDialog_iconPath, taskDialog_text,
secondSelectionGate=None):
self.selections = []
self.parseSelectionFunction = parseSelectionFunction
self.secondSelectionGate = secondSelectionGate
FreeCADGui.Selection.addObserver(self)
FreeCADGui.Selection.removeSelectionGate()
FreeCADGui.Selection.addSelectionGate( selectionGate )
wb_globals['selectionObserver'] = self
self.taskDialog = SelectionTaskDialog(taskDialog_title, taskDialog_iconPath, taskDialog_text)
FreeCADGui.Control.showDialog( self.taskDialog )
def addSelection( self, docName, objName, sub, pnt ):
self.selections.append( SelectionRecord( docName, objName, sub ))
if len(self.selections) == 2:
self.stopSelectionObservation()
self.parseSelectionFunction( self.selections)
elif self.secondSelectionGate != None and len(self.selections) == 1:
FreeCADGui.Selection.removeSelectionGate()
FreeCADGui.Selection.addSelectionGate( self.secondSelectionGate )
def stopSelectionObservation(self):
FreeCADGui.Selection.removeObserver(self)
del wb_globals['selectionObserver']
FreeCADGui.Selection.removeSelectionGate()
FreeCADGui.Control.closeDialog()
#------------------------------------------------------------------------------
class SelectionRecord:
def __init__(self, docName, objName, sub):
self.Document = FreeCAD.getDocument(docName)
self.ObjectName = objName
self.Object = self.Document.getObject(objName)
self.SubElementNames = [sub]
#------------------------------------------------------------------------------
class SelectionTaskDialog:
def __init__(self, title, iconPath, textLines ):
self.form = SelectionTaskDialogForm( textLines )
self.form.setWindowTitle( title )
if iconPath != None:
self.form.setWindowIcon( QtGui.QIcon( iconPath ) )
def reject(self):
wb_globals['selectionObserver'].stopSelectionObservation()
def getStandardButtons(self): #http://forum.freecadweb.org/viewtopic.php?f=10&t=11801
return 0x00400000 #cancel button
#------------------------------------------------------------------------------
class SelectionTaskDialogForm(QtGui.QWidget):
def __init__(self, textLines ):
super(SelectionTaskDialogForm, self).__init__()
self.textLines = textLines
self.initUI()
def initUI(self):
vbox = QtGui.QVBoxLayout()
for line in self.textLines.split('\n'):
vbox.addWidget( QtGui.QLabel(line) )
self.setLayout(vbox)
#------------------------------------------------------------------------------
class SelectionExObject:
'allows for selection gate functions to interface with classification functions below'
def __init__(self, doc, Object, subElementName):
self.doc = doc
self.Object = Object
self.ObjectName = Object.Name
self.SubElementNames = [subElementName]
#------------------------------------------------------------------------------
def getObjectEdgeFromName( obj, name ):
assert name.startswith('Edge')
ind = int( name[4:]) -1
return obj.Shape.Edges[ind]
#------------------------------------------------------------------------------
def CircularEdgeSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Edge'):
edge = getObjectEdgeFromName( selection.Object, subElement)
if not hasattr(edge, 'Curve'): #issue 39
return False
if isLine(edge.Curve):
return False
if hasattr( edge.Curve, 'Radius' ):
return True
# the following section fails for linear edges, protect it
# by try/except block
try:
BSpline = edge.Curve.toBSpline()
arcs = BSpline.toBiArcs(10**-6)
if all( hasattr(a,'Center') for a in arcs ):
centers = numpy.array([a.Center for a in arcs])
sigma = numpy.std( centers, axis=0 )
if max(sigma) < 10**-6: #then circular curve
return True
except:
pass
return False
#------------------------------------------------------------------------------
def ClosedEdgeSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Edge'):
edge = getObjectEdgeFromName( selection.Object, subElement)
if edge.isClosed():
return True
else:
return False
return False
#------------------------------------------------------------------------------
def AxisOfPlaneSelected( selection ): #adding Planes/Faces selection for Axial constraints
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Face'):
face = getObjectFaceFromName( selection.Object, subElement)
if str(face.Surface) == '<Plane object>':
return True
else:
axis, center, error = fit_rotation_axis_to_surface1(face.Surface)
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6:
return True
return False
#------------------------------------------------------------------------------
def printSelection(selection):
entries = []
for s in selection:
for e in s.SubElementNames:
entries.append(' - %s:%s' % (s.ObjectName, e))
if e.startswith('Face'):
ind = int( e[4:]) -1
face = s.Object.Shape.Faces[ind]
entries[-1] = entries[-1] + ' %s' % str(face.Surface)
return '\n'.join( entries[:5] )
#------------------------------------------------------------------------------
def updateObjectProperties( c ):
return
#------------------------------------------------------------------------------
def planeSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Face'):
face = getObjectFaceFromName( selection.Object, subElement)
if str(face.Surface) == '<Plane object>':
return True
elif str(face.Surface) == '<BSplineSurface object>':
normal,pos,error = fit_plane_to_surface1(face.Surface)
if abs(error) < 1e-9:
return True
return False
#------------------------------------------------------------------------------
def vertexSelected( selection ):
if len( selection.SubElementNames ) == 1:
return selection.SubElementNames[0].startswith('Vertex')
return False
#------------------------------------------------------------------------------
def cylindricalFaceSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Face'):
face = getObjectFaceFromName( selection.Object, subElement)
if hasattr(face.Surface,'Radius'):
return True
elif str(face.Surface).startswith('<SurfaceOfRevolution'):
return True
else:
axis, center, error = fit_rotation_axis_to_surface1(face.Surface)
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6:
return True
return False
#------------------------------------------------------------------------------
def LinearEdgeSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Edge'):
edge = getObjectEdgeFromName( selection.Object, subElement)
if not hasattr(edge, 'Curve'): #issue 39
return False
if isLine(edge.Curve):
return True
BSpline = edge.Curve.toBSpline()
arcs = BSpline.toBiArcs(10**-6)
if all(isLine(a) for a in arcs):
lines = arcs
D = numpy.array([L.tangent(0)[0] for L in lines]) #D(irections)
if numpy.std( D, axis=0 ).max() < 10**-9: #then linear curve
return True
return False
#------------------------------------------------------------------------------
def sphericalSurfaceSelected( selection ):
if len( selection.SubElementNames ) == 1:
subElement = selection.SubElementNames[0]
if subElement.startswith('Face'):
face = getObjectFaceFromName( selection.Object, subElement)
return str( face.Surface ).startswith('Sphere ')
return False
#------------------------------------------------------------------------------
def getObjectVertexFromName( obj, name ):
assert name.startswith('Vertex')
ind = int( name[6:]) -1
return obj.Shape.Vertexes[ind]
#------------------------------------------------------------------------------
def removeConstraint( constraint ):
'required as constraint.Proxy.onDelete only called when deleted through GUI'
doc = constraint.Document
if constraint.ViewObject != None:
constraint.ViewObject.Proxy.onDelete( constraint.ViewObject, None ) # also removes mirror...
doc.removeObject( constraint.Name )
#------------------------------------------------------------------------------
def getPos(obj, subElementName):
pos = None
if subElementName.startswith('Face'):
face = getObjectFaceFromName(obj, subElementName)
surface = face.Surface
if str(surface) == '<Plane object>':
pos = getObjectFaceFromName(obj, subElementName).Faces[0].BoundBox.Center
# axial constraint for Planes
# pos = surface.Position
elif str(surface) == "<Cylinder object>":
pos = surface.Center
elif all( hasattr(surface,a) for a in ['Axis','Center','Radius'] ):
pos = surface.Center
elif str(surface).startswith('<SurfaceOfRevolution'):
pos = getObjectFaceFromName(obj, subElementName).Edges[0].Curve.Center
elif str(surface).startswith('<BSplineSurface'):
axis,pos1,error = fit_plane_to_surface1(surface)
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6: #then good plane fit
pos = pos1
axis, center, error = fit_rotation_axis_to_surface1(face.Surface)
if axis != None:
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6: #then good rotation_axis fix
pos = center
elif subElementName.startswith('Edge'):
edge = getObjectEdgeFromName(obj, subElementName)
if isLine(edge.Curve):
if appVersionStr() <= "000.016":
pos = edge.Curve.StartPoint
else:
pos = edge.firstVertex(True).Point
elif hasattr( edge.Curve, 'Center'): #circular curve
pos = edge.Curve.Center
else:
BSpline = edge.Curve.toBSpline()
arcs = BSpline.toBiArcs(10**-6)
if all( hasattr(a,'Center') for a in arcs ):
centers = numpy.array([a.Center for a in arcs])
sigma = numpy.std( centers, axis=0 )
if max(sigma) < 10**-6: #then circular curce
pos = numpyVecToFC(centers[0])
if all(isLine(a) for a in arcs):
lines = arcs
D = numpy.array([L.tangent(0)[0] for L in lines]) #D(irections)
if numpy.std( D, axis=0 ).max() < 10**-9: #then linear curve
pos = lines[0].value(0)
elif subElementName.startswith('Vertex'):
pos = getObjectVertexFromName(obj, subElementName).Point
return pos # maybe none !!
#------------------------------------------------------------------------------
def getPlaneNormal(surface):
axis = None
if hasattr(surface,'Axis'):
axis = surface.Axis
elif str(surface).startswith('<BSplineSurface'):
axis,pos,error = fit_plane_to_surface1(surface)
return axis # may be none!
#------------------------------------------------------------------------------
def getAxis(obj, subElementName):
axis = None
if subElementName.startswith('Face'):
face = getObjectFaceFromName(obj, subElementName)
surface = face.Surface
if hasattr(surface,'Axis'):
axis = surface.Axis
elif str(surface).startswith('<SurfaceOfRevolution'):
axis = face.Edges[0].Curve.Axis
elif str(surface).startswith('<BSplineSurface'):
axis1,pos,error = fit_plane_to_surface1(surface)
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6: #then good plane fit
axis = axis1
axis_fitted, center, error = fit_rotation_axis_to_surface1(face.Surface)
if axis_fitted is not None:
error_normalized = error / face.BoundBox.DiagonalLength
if error_normalized < 10**-6: #then good rotation_axis fix
axis = axis_fitted
elif subElementName.startswith('Edge'):
edge = getObjectEdgeFromName(obj, subElementName)
if isLine(edge.Curve):
axis = edge.Curve.tangent(0)[0]
elif hasattr( edge.Curve, 'Axis'): #circular curve
axis = edge.Curve.Axis
else:
BSpline = edge.Curve.toBSpline()
arcs = BSpline.toBiArcs(10**-6)
if all( hasattr(a,'Center') for a in arcs ):
centers = numpy.array([a.Center for a in arcs])
sigma = numpy.std( centers, axis=0 )
if max(sigma) < 10**-6: #then circular curce
axis = a.Axis
if all(isLine(a) for a in arcs):
lines = arcs
D = numpy.array([L.tangent(0)[0] for L in lines]) #D(irections)
if numpy.std( D, axis=0 ).max() < 10**-9: #then linear curve
axis = numpyVecToFC(D[0])
return axis # may be none!
#------------------------------------------------------------------------------
def unTouchA2pObjects():
doc = FreeCAD.activeDocument()
for obj in doc.Objects:
# leave A2pSketches touched (for recomputing dependent shapes)
if isA2pSketch(obj): continue
if isA2pObject(obj):
obj.purgeTouched();
#------------------------------------------------------------------------------
def isA2pSketch(obj):
result = False
if isA2pPart(obj):
if len(obj.Shape.Faces) == 0:
result = True
return result
#------------------------------------------------------------------------------
def isA2pPart(obj):
result = False
if hasattr(obj,"Content"):
if 'importPart' in obj.Content:
result = True
elif hasattr(obj,"a2p_Version"): # keep old assembly item identification in,
result = True # -> otherwise toggle transparency won't work
elif hasattr(obj,"subassemblyImport"): # another possible assembly item
result = True
elif hasattr(obj,"assembly2Version"): # another possible assembly item (very old a2p versions)
result = True
return result
#------------------------------------------------------------------------------
def isEditableA2pPart(obj):
if not isA2pPart(obj): return False
if hasattr(obj,"sourceFile"):
if obj.sourceFile == "converted": return False
if obj.sourceFile == "": return False
return True
#------------------------------------------------------------------------------
def isA2pConstraint(obj):
result = False
if hasattr(obj,"Content"):
if ('ConstraintInfo' in obj.Content) or ('ConstraintNfo'in obj.Content):
result = True
return result
#------------------------------------------------------------------------------
def isA2pObject(obj):
result = False
if isA2pPart(obj) or isA2pConstraint(obj):
result = True
return result
#------------------------------------------------------------------------------
def isFastenerObject(obj):
'''
recognize an object created by the fasteners WB
'''
if hasattr(obj,'Proxy'):
if str(obj.Proxy).startswith('<FastenersCmd.FSScrewObject'): return True
if str(obj.Proxy).startswith('<FastenersCmd.FSWasherObject'): return True
if str(obj.Proxy).startswith('<FastenersCmd.FSScrewRodObject'): return True
return False
#------------------------------------------------------------------------------
def makeDiffuseElement(color,trans):
elem = (color[0],color[1],color[2],trans/100.0)
return elem
#------------------------------------------------------------------------------
def copyObjectColors(ob1,ob2):
'''
copies colors from ob2 to ob1
Transparency of updated object is not touched until
user activates perFaceTransparency within preferences.
'''
if ob1.updateColors != True:
ob1.ViewObject.DiffuseColor = [ob1.ViewObject.ShapeColor] # set syncron
return
# obj1.updateColors == True from now
newDiffuseColor = copy.copy(ob2.ViewObject.DiffuseColor)
ob1.ViewObject.ShapeColor = ob2.ViewObject.ShapeColor
ob1.ViewObject.DiffuseColor = newDiffuseColor # set diffuse last
if not getPerFaceTransparency():
# touch transparency one to trigger update of 3D View
# per face transparency probably gets lost
if ob1.ViewObject.Transparency > 0:
t = ob1.ViewObject.Transparency
ob1.ViewObject.Transparency = 0
ob1.ViewObject.Transparency = t
else:
ob1.ViewObject.Transparency = 1
ob1.ViewObject.Transparency = 0
# select/deselect object once to trigger update of 3D View
FreeCADGui.Selection.addSelection(ob1)
FreeCADGui.Selection.removeSelection(ob1)
#------------------------------------------------------------------------------
def isConstrainedPart(doc,obj):
if not isA2pPart(obj): return False
constraints = [ ob for ob in doc.Objects if 'ConstraintInfo' in ob.Content]
for c in constraints: