def Activated(self):
import numpy as np
import flatmesh
obj = Gui.Selection.getSelection()[0] # obj must be a Mesh (Mesh-Design->Meshes->Create-Mesh)
points = np.array([[i.x, i.y, i.z] for i in obj.Mesh.Points])
faces = np.array([list(i) for i in obj.Mesh.Topology[1]])
flattener = flatmesh.FaceUnwrapper(points, faces)
flattener.findFlatNodes(5, 0.95)
boundaries = flattener.getFlatBoundaryNodes()
#print('number of nodes: {}'.format(len(flattener.ze_nodes)))
#print('number of faces: {}'.format(len(flattener.tris)))
wires = []
for edge in boundaries:
pi = Part.makePolygon([App.Vector(*node) for node in edge])
Part.show(Part.Wire(pi))
def Activated(self):
import numpy as np
import flatmesh
face = Gui.Selection.getSelectionEx()[0].SubObjects[0]
shape = face.toNurbs()
face = shape.Faces[0]
nurbs = face.Surface
nurbs.setUNotPeriodic()
nurbs.setVNotPeriodic()
bs = nurbs.toBSpline(1, "C0", "C0", 3, 3, 10)
face = bs.toShape()
face.tessellate(0.01)
flattener = flatmesh.FaceUnwrapper(face)
flattener.findFlatNodes(5, 0.99)
poles = flattener.interpolateFlatFace(face)
num_u_poles = len(bs.getPoles())
num_v_poles = len(bs.getPoles()[0])
i = 0
for u in range(num_u_poles):
for v in range(num_v_poles):
bs.setPole(u + 1, v + 1, App.Vector(poles[i]))
i += 1
Part.show(bs.toShape())
m = t.Mesh
uvpts = [p.Vector for p in m.Points]
pts = [seval(p.Vector.x, p.Vector.y) for p in m.Points]
tris = [x.PointIndices for x in m.Facets]
facets = [[pts[i0], pts[i1], pts[i2]] for i0, i1, i2 in tris]
uvcentre = sum(
(p.Vector for p in m.Points), Vector()) * (1 / m.CountPoints)
mesh = createobjectingroup(doc, stg, "Mesh::Feature", "s%s" % t.Name[1:])
mesh.Mesh = Mesh.Mesh(facets)
mesh.ViewObject.Lighting = "Two side"
mesh.ViewObject.ShapeColor = t.ViewObject.ShapeColor
print(mesh.Name, "tris", len(tris), "pts", len(pts), mesh.Mesh)
gpts = numpy.array([[p.x, p.y, p.z] for p in pts])
#####################
# This is where the flattener function is called
#####################
flattener = flatmesh.FaceUnwrapper(gpts, numpy.array(tris))
flattener.findFlatNodes(10, 0.95)
fpts = [Vector(ze[0], ze[1], 0) for ze in flattener.ze_nodes]
rfpts = transformalignfpts(uvpts, fpts, t.Name[1:])
rffacets = [[rfpts[i0], rfpts[i1], rfpts[i2]] for i0, i1, i2 in tris]
fmesh = createobjectingroup(doc, flg, "Mesh::Feature", "f%s" % t.Name[1:])
fmesh.Mesh = Mesh.Mesh(rffacets)
fmesh.ViewObject.Lighting = "Two side"
fmesh.ViewObject.ShapeColor = t.ViewObject.ShapeColor