Construction of Mesh using BLSurf algorithm
import geompy
import smesh
import BLSURFPlugin
# create a box
box = geompy.MakeBoxDXDYDZ(200., 200., 200.)
geompy.addToStudy(box, "box")
# get subshapes
Face_1 = geompy.SubShapeAllSorted(box, geompy.ShapeType["FACE"])[0]
Edge_1 = geompy.SubShapeAllSorted(box, geompy.ShapeType["EDGE"])[0]
Vertex_1 = geompy.SubShapeAllSorted(box, geompy.ShapeType["VERTEX"])[0]
Face_2 = geompy.SubShapeAllSorted(box, geompy.ShapeType["FACE"])[5]
Wire_1 = geompy.SubShapeAllSorted(Face_2, geompy.ShapeType["WIRE"])[0]
# /!\ Geom object with sizemaps on them must be published in study
geompy.addToStudyInFather(box,Face_1, "Face_1")
geompy.addToStudyInFather(box,Edge_1, "Edge_1")
geompy.addToStudyInFather(box,Vertex_1, "Vertex_1")
geompy.addToStudyInFather(box ,Face_2, "Face_2")
geompy.addToStudyInFather(Face_2,Wire_1, "Wire_1")
# create a mesh on the box
blsurfMesh = smesh.Mesh(box,"box: BLSurf mesh")
# create a BLSurf algorithm for faces
BLSURF = blsurfMesh.Triangle(algo=smesh.BLSURF)
# get BLSurf algorithm hypothesis
BLSURF_Parameters = BLSURF.Parameters()
# set physical mesh to 2 = Size Map
BLSURF_Parameters.SetPhysicalMesh( 2 )
# set global mesh size
BLSURF_Parameters.SetPhySize( 34.641 )
# set size on Face_1
BLSURF_Parameters.SetSizeMap(Face_1, 'def f(u,v): return 10' )
# set size on Edge_1
BLSURF_Parameters.SetSizeMap(Edge_1, 'def f(t): return 5' )
# set size on Vertex_1
BLSURF_Parameters.SetSizeMap(Vertex_1, 'def f(): return 2' )
# compute the mesh
blsurfMesh.Compute()
# Add enforced vertex for Face_1 on (50, 50, 50)
# The projection coordinates will be (50, 50, 0)
BLSURF_Parameters.SetEnforcedVertex(Face_1, 50, 50, 50)
# Add another enforced vertex on (150, 150, 150)
BLSURF_Parameters.SetEnforcedVertex(Face_1, 150, 150, 150)
# Retrieve and print the list of enforced vertices defines on Face_1
enfList = BLSURF_Parameters.GetEnforcedVertices(Face_1)
print "List of enforced vertices for Face_1: "
print enfList
# compute the mesh
blsurfMesh.Compute()
# Remove an enforced vertex and print the list
BLSURF_Parameters.UnsetEnforcedVertex(Face_1, 50, 50, 50)
enfList = BLSURF_Parameters.GetEnforcedVertices(Face_1)
print "List of enforced vertices for Face_1: "
print enfList
# compute the mesh
blsurfMesh.Compute()
# Remove all enforced vertices defined on Face_1
BLSURF_Parameters.UnsetEnforcedVertices(Face_1)
# compute the mesh
blsurfMesh.Compute()
# Add an attractor on Face_2, which shape is Wire_1
# The size on Wire_1 is 1 and will grow until a maximum of 36.641 (physical size set above)
# The influence distance of the attractor is 20
# The size is kept constant until a distance of 10
BLSURF_Parameters.SetAttractorGeom(Face_2, Wire_1, 1, 36.641, 20, 10)
# In order to let the attractor control the growing of the mesh let set
# the gradation to its maximum
BLSURF_Parameters.SetGradation( 2.5 )
# compute the mesh
blsurfMesh.Compute()
# End of script
