def convertFromAdhPyUtilMesh(self, meshin, verbose=0):
"""
generate a Triangle mesh representation from an adhPyUtil mesh.
This version will copy over the nodes and elements from the
adhPyUtil mesh.
Deletes the existing Triangle mesh and regenerates.
"""
#first check that the input mesh has the correct dimensions and
#minimal information necessary
spaceDim = 2
assert (meshin.nElementBoundaries_element == spaceDim + 1)
assert (not meshin.nodeArray == None)
assert (not meshin.elementNodesArray == None)
#get a clean slate
tri0 = triangulate.new()
#don't set any markers for now
#input array should be nNodes by spacedim
nodesIn = meshin.nodeArray[:, :spaceDim]
triangulate.setPoints(tri0, nodesIn)
#triangle array should be nElements x 3
triAin = meshin.elementNodesArray[:, :spaceDim + 1]
triangulate.setTriangles(tri0, triAin)
flagsAdd = "r" #use element and node connections
flags = flagsAdd + self.baseFlags
if flags.find('v') >= 0:
self.makeVoronoi = True
if verbose > 0:
print 'readNodeAndEle makeVoronoi= ', self.makeVoronoi, ' flags= ', flags
#end if
self.lastFlags = flags
#reset data representations if necessary
self.resetDefaultTrirep(index=0, verbose=verbose)
if self.makeVoronoi:
self.resetDefaultVorrep(index=0, verbose=verbose)
#end vorrep initialized
if self.makeVoronoi:
triangulate.applyTriangulate(flags, tri0, self.trirep[0],
self.vorrep[0])
#handles no longer contain trivial representations
self.trirepDefaultInit[0] = False
self.vorrepDefaultInit[0] = False
else:
triangulate.applyTriangulateNoVoronoi(flags, tri0, self.trirep[0])
#handle no longer contains trivial representations
self.trirepDefaultInit[0] = False
#end if
#clean up explicitly
del tri0
def convertFromAdhPyUtilMesh(self,meshin,verbose=0):
"""
generate a Triangle mesh representation from an adhPyUtil mesh.
This version will copy over the nodes and elements from the
adhPyUtil mesh.
Deletes the existing Triangle mesh and regenerates.
"""
#first check that the input mesh has the correct dimensions and
#minimal information necessary
spaceDim = 2
assert(meshin.nElementBoundaries_element == spaceDim+1)
assert(not meshin.nodeArray == None)
assert(not meshin.elementNodesArray == None)
#get a clean slate
tri0 = triangulate.new()
#don't set any markers for now
#input array should be nNodes by spacedim
nodesIn = meshin.nodeArray[:,:spaceDim]
triangulate.setPoints(tri0,nodesIn)
#triangle array should be nElements x 3
triAin = meshin.elementNodesArray[:,:spaceDim+1]
triangulate.setTriangles(tri0,triAin)
flagsAdd = "r" #use element and node connections
flags = flagsAdd+self.baseFlags
if flags.find('v') >= 0:
self.makeVoronoi = True
if verbose > 0:
print 'readNodeAndEle makeVoronoi= ',self.makeVoronoi,' flags= ',flags
#end if
self.lastFlags = flags
#reset data representations if necessary
self.resetDefaultTrirep(index=0,verbose=verbose)
if self.makeVoronoi:
self.resetDefaultVorrep(index=0,verbose=verbose)
#end vorrep initialized
if self.makeVoronoi:
triangulate.applyTriangulate(flags,tri0,self.trirep[0],self.vorrep[0])
#handles no longer contain trivial representations
self.trirepDefaultInit[0] = False
self.vorrepDefaultInit[0] = False
else:
triangulate.applyTriangulateNoVoronoi(flags,tri0,self.trirep[0])
#handle no longer contains trivial representations
self.trirepDefaultInit[0] = False
#end if
#clean up explicitly
del tri0
def tricall2():
"""
test reading Triangle file utilities
"""
import triIfaceUtils
import triIfaceFileUtils
reader = triIfaceUtils.TriangleInputFileReader()
filebase = 'trimesh'
nodeDataInfo,nodeData = reader.readNodes(filebase)
nodes,nodesA,nodesM = (nodeData['nodes'],
nodeData['nodeAttributes'],
nodeData['nodeMarkers'])
print 'Nodes: nodeInfo= ',nodeDataInfo
print """Nodes: nodes= \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s\n """ % (nodes,
nodesA,
nodesM)
triDataInfo,triData = reader.readTriangles(filebase)
triangles,trianglesA = triData['triangles'],triData['triangleAttributes']
print 'Triangles: triInfo= ',triDataInfo
print """Triangles: elems= \n%s\n triAttributes= \n%s\n""" % (triangles,
trianglesA)
#write out assuming just read in node and ele files
filebaseout = filebase+'-out-0'
tri0 = triangulate.new()
if nodesM == None:
triangulate.setPoints(tri0,nodes)
else:
triangulate.setPointsAndMarkers(tri0,nodes,nodesM)
if not nodesA == None:
triangulate.setPointAttributes(tri0,nodesA)
#end if
triangulate.setTriangles(tri0,triangles)
if not trianglesA == None:
triangulate.setTriangleAttributes(tri0,trianglesA)
#end if
triIfaceUtils.writeOutTriangulation(tri0,filebaseout,nbase=0,verbose=0)
#now view with showme
showme = "../bin/showme"
showmecmd = """showme %s """ % filebaseout
failure = 0
failure = triIfaceFileUtils.checkFileExists(showme)
failure = os.system(showmecmd)
##now read from .poly file
polyDataInfo,polyData = reader.readPoly(filebase)
for type in ['node','segment','hole','region']:
print 'Poly: ',type,'Info= \n',polyDataInfo[type],'\n'
#
nodes2,nodesA2,nodesM2 = (polyData['node']['nodes'],
polyData['node']['nodeAttributes'],
polyData['node']['nodeMarkers'])
segments2,segmentsM2 = (polyData['segment']['segments'],
polyData['segment']['segmentMarkers'])
holes2 = polyData['hole']['holes']
regions2 = polyData['region']['regions']
print """Poly file read:
nodes = \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s\n
segments= \n%s\n segmentMarkers= \n%s\n
holes = \n%s\n
regions = \n%s\n
""" % (nodes2,nodesA2,nodesM2,segments2,segmentsM2,holes2,regions2)
### now create a triangulation and write out the data arrays?
trin1 = triangulate.new()
filebaseout1 = filebase+"-out-1"
if nodesM2 == None:
triangulate.setPoints(trin1,nodes2,nodesM2)
else:
triangulate.setPointsAndMarkers(trin1,nodes2,nodesM2)
if not nodesA2 == None:
triangulate.setPointAttributes(trin1,nodesA2)
#end if
if segmentsM2 == None:
triangulate.setSegments(trin1,segments2)
else:
triangulate.setSegmentsAndMarkers(trin1,segments2,segmentsM2)
if not holes2 == None:
triangulate.setHoles(trin1,holes2)
#end if
if not regions2 == None:
#print 'setting trin1 regions=\n',regions2
triangulate.setRegions(trin1,regions2)
#end if
trout1 = triangulate.new()
flags = "zpne" #needs to be base 0 if Input was that way (and nbase=0)
triangulate.applyTriangulateNoVoronoi(flags,trin1,trout1)
triIfaceUtils.writeOutTriangulation(trout1,filebaseout1,nbase=0,verbose=0)
#now view with showme
showmecmd = """showme %s """ % filebaseout1
failure = 0
failure = triIfaceFileUtils.checkFileExists(showme)
failure = os.system(showmecmd)
def readFromNodeAndEleFiles(self, filebase, flagsAdd="", verbose=0):
"""
read triangle representation from filebase.node and filebase.ele
files. assumes the nbase data member is set appropriately
"""
reader = triIfaceUtils.TriangleInputFileReader()
if verbose > 0:
print 'readFromNodeAndEleFiles filebase= ', filebase
#end if
nodeDataInfo, nodeData = reader.readNodes(filebase, nbase=self.nbase)
nodes, nodesA, nodesM = (nodeData['nodes'], nodeData['nodeAttributes'],
nodeData['nodeMarkers'])
if verbose > 3:
print 'Nodes: nodeInfo= ', nodeDataInfo
print """Nodes: nodes= \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s
""" % (nodes, nodesA, nodesM)
#end if
triDataInfo, triData = reader.readTriangles(filebase, nbase=self.nbase)
triangles, trianglesA = triData['triangles'], triData[
'triangleAttributes']
if verbose > 3:
print 'Triangles: triInfo= ', triDataInfo
print """Triangles: elems= \n%s\n triAttributes= \n%s
""" % (triangles, trianglesA)
#end if
#now create an initial representation
tri0 = triangulate.new()
if nodesM == None:
triangulate.setPoints(tri0, nodes)
else:
triangulate.setPointsAndMarkers(tri0, nodes, nodesM)
if not nodesA == None:
triangulate.setPointAttributes(tri0, nodesA)
#end if
triangulate.setTriangles(tri0, triangles)
if not trianglesA == None:
triangulate.setTriangleAttributes(tri0, trianglesA)
#run triangulate on it using the base flags and whatever else was
#added
flags = flagsAdd + self.baseFlags
if flags.find('v') >= 0:
self.makeVoronoi = True
if verbose > 0:
print 'readNodeAndEle makeVoronoi= ', self.makeVoronoi, ' flags= ', flags
#end if
self.lastFlags = flags
#reset data representations if necessary
self.resetDefaultTrirep(index=0, verbose=verbose)
if self.makeVoronoi:
self.resetDefaultVorrep(index=0, verbose=verbose)
#end vorrep initialized
if self.makeVoronoi:
triangulate.applyTriangulate(flags, tri0, self.trirep[0],
self.vorrep[0])
#handles no longer contain trivial representations
self.trirepDefaultInit[0] = False
self.vorrepDefaultInit[0] = False
else:
triangulate.applyTriangulateNoVoronoi(flags, tri0, self.trirep[0])
#handle no longer contains trivial representations
self.trirepDefaultInit[0] = False
#end if
#do I need to clean up explicitly?
del tri0
triangulate.setPointAttributes(trin,patts) pattsout = triangulate.getPointAttributes(trin) pattsoutCopy = triangulate.getPointAttributesCopy(trin) print 'pattsin=\n',patts print 'pattsout=\n',pattsout print 'pattsoutCopy=\n',pattsoutCopy #manually construct triangles ntri = 2; ncorn= 3; elems0 = Numeric.zeros((ntri,ncorn),Numeric.Int) elems0[0,:] = [0,1,2] elems0[1,:] = [0,2,3] triangulate.setTriangles(trin,elems0) #shallow copy elems1 = triangulate.getTriangles(trin) #deep copy elems1Copy = triangulate.getTrianglesCopy(trin) print 'elems0=\n',elems0 print 'elems1=\n',elems1 #construct boundary segments nsegs = 4 segsin= Numeric.zeros((nsegs,2),Numeric.Int) segsin[0,:] = [3,0] #left segsin[1,:] = [1,2] #right segsin[2,:] = [0,1] #bottom
def readFromNodeAndEleFiles(self,filebase,flagsAdd="",verbose=0):
"""
read triangle representation from filebase.node and filebase.ele
files. assumes the nbase data member is set appropriately
"""
reader = triIfaceUtils.TriangleInputFileReader()
if verbose > 0:
print 'readFromNodeAndEleFiles filebase= ',filebase
#end if
nodeDataInfo,nodeData = reader.readNodes(filebase,nbase=self.nbase)
nodes,nodesA,nodesM = (nodeData['nodes'],
nodeData['nodeAttributes'],
nodeData['nodeMarkers'])
if verbose > 3:
print 'Nodes: nodeInfo= ',nodeDataInfo
print """Nodes: nodes= \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s
""" % (nodes,nodesA,nodesM)
#end if
triDataInfo,triData = reader.readTriangles(filebase,nbase=self.nbase)
triangles,trianglesA = triData['triangles'],triData['triangleAttributes']
if verbose > 3:
print 'Triangles: triInfo= ',triDataInfo
print """Triangles: elems= \n%s\n triAttributes= \n%s
""" % (triangles,trianglesA)
#end if
#now create an initial representation
tri0 = triangulate.new()
if nodesM == None:
triangulate.setPoints(tri0,nodes)
else:
triangulate.setPointsAndMarkers(tri0,nodes,nodesM)
if not nodesA == None:
triangulate.setPointAttributes(tri0,nodesA)
#end if
triangulate.setTriangles(tri0,triangles)
if not trianglesA == None:
triangulate.setTriangleAttributes(tri0,trianglesA)
#run triangulate on it using the base flags and whatever else was
#added
flags = flagsAdd+self.baseFlags
if flags.find('v') >= 0:
self.makeVoronoi = True
if verbose > 0:
print 'readNodeAndEle makeVoronoi= ',self.makeVoronoi,' flags= ',flags
#end if
self.lastFlags = flags
#reset data representations if necessary
self.resetDefaultTrirep(index=0,verbose=verbose)
if self.makeVoronoi:
self.resetDefaultVorrep(index=0,verbose=verbose)
#end vorrep initialized
if self.makeVoronoi:
triangulate.applyTriangulate(flags,tri0,self.trirep[0],self.vorrep[0])
#handles no longer contain trivial representations
self.trirepDefaultInit[0] = False
self.vorrepDefaultInit[0] = False
else:
triangulate.applyTriangulateNoVoronoi(flags,tri0,self.trirep[0])
#handle no longer contains trivial representations
self.trirepDefaultInit[0] = False
#end if
#do I need to clean up explicitly?
del tri0
triangulate.setPointAttributes(trin, patts) pattsout = triangulate.getPointAttributes(trin) pattsoutCopy = triangulate.getPointAttributesCopy(trin) print 'pattsin=\n', patts print 'pattsout=\n', pattsout print 'pattsoutCopy=\n', pattsoutCopy #manually construct triangles ntri = 2 ncorn = 3 elems0 = Numeric.zeros((ntri, ncorn), Numeric.Int) elems0[0, :] = [0, 1, 2] elems0[1, :] = [0, 2, 3] triangulate.setTriangles(trin, elems0) #shallow copy elems1 = triangulate.getTriangles(trin) #deep copy elems1Copy = triangulate.getTrianglesCopy(trin) print 'elems0=\n', elems0 print 'elems1=\n', elems1 #construct boundary segments nsegs = 4 segsin = Numeric.zeros((nsegs, 2), Numeric.Int) segsin[0, :] = [3, 0] #left segsin[1, :] = [1, 2] #right segsin[2, :] = [0, 1] #bottom
def tricall2():
"""
test reading Triangle file utilities
"""
import triIfaceUtils
import triIfaceFileUtils
reader = triIfaceUtils.TriangleInputFileReader()
filebase = 'trimesh'
nodeDataInfo, nodeData = reader.readNodes(filebase)
nodes, nodesA, nodesM = (nodeData['nodes'], nodeData['nodeAttributes'],
nodeData['nodeMarkers'])
print 'Nodes: nodeInfo= ', nodeDataInfo
print """Nodes: nodes= \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s\n """ % (
nodes, nodesA, nodesM)
triDataInfo, triData = reader.readTriangles(filebase)
triangles, trianglesA = triData['triangles'], triData['triangleAttributes']
print 'Triangles: triInfo= ', triDataInfo
print """Triangles: elems= \n%s\n triAttributes= \n%s\n""" % (triangles,
trianglesA)
#write out assuming just read in node and ele files
filebaseout = filebase + '-out-0'
tri0 = triangulate.new()
if nodesM == None:
triangulate.setPoints(tri0, nodes)
else:
triangulate.setPointsAndMarkers(tri0, nodes, nodesM)
if not nodesA == None:
triangulate.setPointAttributes(tri0, nodesA)
#end if
triangulate.setTriangles(tri0, triangles)
if not trianglesA == None:
triangulate.setTriangleAttributes(tri0, trianglesA)
#end if
triIfaceUtils.writeOutTriangulation(tri0, filebaseout, nbase=0, verbose=0)
#now view with showme
showme = "../bin/showme"
showmecmd = """showme %s """ % filebaseout
failure = 0
failure = triIfaceFileUtils.checkFileExists(showme)
failure = os.system(showmecmd)
##now read from .poly file
polyDataInfo, polyData = reader.readPoly(filebase)
for type in ['node', 'segment', 'hole', 'region']:
print 'Poly: ', type, 'Info= \n', polyDataInfo[type], '\n'
#
nodes2, nodesA2, nodesM2 = (polyData['node']['nodes'],
polyData['node']['nodeAttributes'],
polyData['node']['nodeMarkers'])
segments2, segmentsM2 = (polyData['segment']['segments'],
polyData['segment']['segmentMarkers'])
holes2 = polyData['hole']['holes']
regions2 = polyData['region']['regions']
print """Poly file read:
nodes = \n%s\n nodeAttributes= \n%s\n nodeMarkers= \n%s\n
segments= \n%s\n segmentMarkers= \n%s\n
holes = \n%s\n
regions = \n%s\n
""" % (nodes2, nodesA2, nodesM2, segments2, segmentsM2, holes2, regions2)
### now create a triangulation and write out the data arrays?
trin1 = triangulate.new()
filebaseout1 = filebase + "-out-1"
if nodesM2 == None:
triangulate.setPoints(trin1, nodes2, nodesM2)
else:
triangulate.setPointsAndMarkers(trin1, nodes2, nodesM2)
if not nodesA2 == None:
triangulate.setPointAttributes(trin1, nodesA2)
#end if
if segmentsM2 == None:
triangulate.setSegments(trin1, segments2)
else:
triangulate.setSegmentsAndMarkers(trin1, segments2, segmentsM2)
if not holes2 == None:
triangulate.setHoles(trin1, holes2)
#end if
if not regions2 == None:
#print 'setting trin1 regions=\n',regions2
triangulate.setRegions(trin1, regions2)
#end if
trout1 = triangulate.new()
flags = "zpne" #needs to be base 0 if Input was that way (and nbase=0)
triangulate.applyTriangulateNoVoronoi(flags, trin1, trout1)
triIfaceUtils.writeOutTriangulation(trout1,
filebaseout1,
nbase=0,
verbose=0)
#now view with showme
showmecmd = """showme %s """ % filebaseout1
failure = 0
failure = triIfaceFileUtils.checkFileExists(showme)
failure = os.system(showmecmd)