def AddCurveToScene(self, shp, edge_color, deflection):
""" shp is either a TopoDS_Wire or a TopodS_Edge.
"""
if is_edge(shp):
pnts = discretize_edge(shp, deflection)
elif is_wire(shp):
pnts = discretize_wire(shp, deflection)
np_edge_vertices = np.array(pnts, dtype=np.float32)
np_edge_indices = np.arange(np_edge_vertices.shape[0], dtype=np.uint32)
edge_geometry = BufferGeometry(
attributes={
'position': BufferAttribute(np_edge_vertices),
'index': BufferAttribute(np_edge_indices)
})
edge_material = LineBasicMaterial(color=edge_color, linewidth=1)
# and to the dict of shapes, to have a mapping between meshes and shapes
edge_id = "%s" % uuid.uuid4().hex
self._shapes[edge_id] = shp
edge_line = Line(geometry=edge_geometry,
material=edge_material,
name=edge_id)
# and to the dict of shapes, to have a mapping between meshes and shapes
edge_id = "%s" % uuid.uuid4().hex
self._shapes[edge_id] = shp
return edge_line
def DisplayShape(self,
shape,
vertex_shader=None,
fragment_shader=None,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.,
line_color=(0, 0., 0.),
line_width=2.,
mesh_quality=1.):
""" Adds a shape to the rendering buffer. This class computes the x3d file
"""
# if the shape is an edge or a wire, use the related functions
if is_edge(shape):
print("X3D exporter, discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
line_set = ExportEdgeToILS(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set], ils_id=edge_hash)
edge_full_path = os.path.join(self._path, edge_hash + '.x3d')
with open(edge_full_path, "w") as edge_file:
edge_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[edge_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
elif is_wire(shape):
print("X3D exporter, discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
line_set = ExportEdgeToILS(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set], ils_id=wire_hash)
wire_full_path = os.path.join(self._path, wire_hash + '.x3d')
with open(wire_full_path, "w") as wire_file:
wire_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[wire_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
x3d_exporter = X3DExporter(shape, vertex_shader, fragment_shader,
export_edges, color,
specular_color, shininess, transparency,
line_color, line_width, mesh_quality)
x3d_exporter.compute()
x3d_filename = os.path.join(self._path, "%s.x3d" % shape_hash)
# the x3d filename is computed from the shape hash
shape_id = len(self._x3d_shapes)
x3d_exporter.write_to_file(x3d_filename, shape_id)
## TODO : orientation and translation
# get shape translation and orientation
# trans = shape.Location().Transformation().TranslationPart().Coord() # vector
# v = gp_Vec()
# angle = shape.Location().Transformation().GetRotation().GetVectorAndAngle(v)
# ori = (v.X(), v.Y(), v.Z(), angle) # angles
# fill the shape dictionnary with shape hash, translation and orientation
# self._x3d_shapes[shape_hash] = [trans, ori]
self._x3d_shapes[shape_hash] = [export_edges, color, specular_color, shininess, transparency, line_color, line_width]
return self._x3d_shapes, self._x3d_edges
def DisplayShape(self,
shape,
vertex_shader=None,
fragment_shader=None,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.,
line_color=(0, 0., 0.),
line_width=2.,
mesh_quality=1.):
""" Adds a shape to the rendering buffer. This class computes the x3d file
"""
# if the shape is an edge or a wire, use the related functions
if is_edge(shape):
print("X3D exporter, discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
line_set = ExportEdgeToILS(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set], ils_id=edge_hash)
edge_full_path = os.path.join(self._path, edge_hash + '.x3d')
with open(edge_full_path, "w") as edge_file:
edge_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[edge_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
elif is_wire(shape):
print("X3D exporter, discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
line_set = ExportEdgeToILS(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set], ils_id=wire_hash)
wire_full_path = os.path.join(self._path, wire_hash + '.x3d')
with open(wire_full_path, "w") as wire_file:
wire_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[wire_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
x3d_exporter = X3DExporter(shape, vertex_shader, fragment_shader,
export_edges, color,
specular_color, shininess, transparency,
line_color, line_width, mesh_quality)
x3d_exporter.compute()
x3d_filename = os.path.join(self._path, "%s.x3d" % shape_hash)
# the x3d filename is computed from the shape hash
shape_id = len(self._x3d_shapes)
x3d_exporter.write_to_file(x3d_filename, shape_id)
## TODO : orientation and translation
# get shape translation and orientation
# trans = shape.Location().Transformation().TranslationPart().Coord() # vector
# v = gp_Vec()
# angle = shape.Location().Transformation().GetRotation().GetVectorAndAngle(v)
# ori = (v.X(), v.Y(), v.Z(), angle) # angles
# fill the shape dictionnary with shape hash, translation and orientation
# self._x3d_shapes[shape_hash] = [trans, ori]
self._x3d_shapes[shape_hash] = [export_edges, color, specular_color, shininess, transparency, line_color, line_width]
return self._x3d_shapes, self._x3d_edges
def DisplayShape(self,
shape,
vertex_shader=None,
fragment_shader=None,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.,
line_color=(0, 0., 0.),
line_width=2.,
mesh_quality=1.):
""" Adds a shape to the rendering buffer. This class computes the x3d file
"""
# if the shape is an edge or a wire, use the related functions
if is_edge(shape):
print("X3D exporter, discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
line_set = export_edge_to_indexed_lineset(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set],
ils_id=edge_hash)
edge_full_path = os.path.join(self._path, edge_hash + '.x3d')
with open(edge_full_path, "w") as edge_file:
edge_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[edge_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
if is_wire(shape):
print("X3D exporter, discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
line_set = export_edge_to_indexed_lineset(pnts)
x3dfile_content = indexed_lineset_to_x3d_string([line_set],
ils_id=wire_hash)
wire_full_path = os.path.join(self._path, wire_hash + '.x3d')
with open(wire_full_path, "w") as wire_file:
wire_file.write(x3dfile_content)
# store this edge hash
self._x3d_edges[wire_hash] = [color, line_width]
return self._x3d_shapes, self._x3d_edges
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
x3d_exporter = X3DExporter(shape, vertex_shader, fragment_shader,
export_edges, color, specular_color,
shininess, transparency, line_color,
line_width, mesh_quality)
x3d_exporter.compute()
x3d_filename = os.path.join(self._path, "%s.x3d" % shape_hash)
# the x3d filename is computed from the shape hash
shape_id = len(self._x3d_shapes)
x3d_exporter.write_to_file(x3d_filename, shape_id)
self._x3d_shapes[shape_hash] = [
export_edges, color, specular_color, shininess, transparency,
line_color, line_width
]
return self._x3d_shapes, self._x3d_edges
def drawShape(self,
shape,
color=(0.65, 0.65, 0.7),
transparency=0.,
line_width=1.,
):
# if the shape is an edge or a wire, use the related functions
shininess=0.9
specular_color=(0.2, 0.2, 0.2)
shape_precision, wire_precision = self.precision
if is_edge(shape):
print("discretize an edge")
pnts = discretize_edge(shape, wire_precision)
edge_hash = "exp_%s_edge" % str(self.shapeNum).zfill(3)
self.shapeNum += 1
str_to_write = export_edgedata_to_json(edge_hash, pnts)
edge_full_path = os.path.join(self._path, edge_hash + '.json')
with open(edge_full_path, "w") as edge_file:
edge_file.write(str_to_write)
# store this edge hash
self.stringList.append("\tzdeskXCurve(slidePath+'%s.json', %s, %g);\n"
% (edge_hash, color_to_hex(color), line_width))
print("%s, %i segments" % (edge_hash ,len(pnts)-1))
elif is_wire(shape):
print("discretize a wire")
pnts = discretize_wire(shape, wire_precision)
wire_hash = "exp_%s_wire" % str(self.shapeNum).zfill(3)
self.shapeNum += 1
str_to_write = export_edgedata_to_json(wire_hash, pnts)
wire_full_path = os.path.join(self._path, wire_hash + '.json')
with open(wire_full_path, "w") as wire_file:
wire_file.write(str_to_write)
# store this edge hash
self.stringList.append("\tzdeskXCurve(slidePath+'%s.json', %s, %g);\n"
% (wire_hash, color_to_hex(color), line_width))
print("%s, %i segments" % (wire_hash ,len(pnts)-1))
else: #solid or shell
print("tesselate a shape")
shape_uuid = uuid.uuid4().hex
shape_hash = "exp_%s_shape" % str(self.shapeNum).zfill(3)
self.shapeNum += 1
# tesselate
tess = ShapeTesselator(shape)
tess.Compute(compute_edges=False,
mesh_quality=shape_precision,
parallel=True)
# export to 3JS
shape_full_path = os.path.join(self._path, shape_hash + '.json')
with open(shape_full_path, 'w') as json_file:
json_file.write(tess.ExportShapeToThreejsJSONString(shape_uuid))
self.stringList.append("\tzdeskXShape(slidePath+'%s.json', %s, %s, %g, %g);\n"
% (shape_hash, color_to_hex(color), color_to_hex(specular_color), shininess, 1 - transparency))
print("%s, %i triangles\n" % (shape_hash, tess.ObjGetTriangleCount()))
def drawShape(self, shape):
shape_precision, wire_precision = self.precision
if is_edge(shape):
pass
elif is_wire(shape):
pass
else: #solid or shell
print("export shape %s to STL start", str(self.shapeNum).zfill(3))
shape_hash = "exp_%s_shape" % str(self.shapeNum).zfill(3)
shape_full_path = os.path.join(self._path, shape_hash + '.stl')
write_stl_file(shape, shape_full_path, "ascii", shape_precision/4, 0.5/4)
print("export shape %s to STL done", str(self.shapeNum).zfill(3))
self.shapeNum += 1
def DisplayShape(
self,
shp, # the TopoDS_Shape to be displayed
shape_color=default_shape_color, # the default
render_edges=False,
edge_color=default_edge_color,
compute_uv_coords=False,
quality=1.0,
transparency=False,
opacity=1.,
topo_level='default',
update=False):
""" Displays a topods_shape in the renderer instance.
shp: the TopoDS_Shape to render
shape_color: the shape color, in html corm, eg '#abe000'
render_edges: optional, False by default. If True, compute and dislay all
edges as a linear interpolation of segments.
edge_color: optional, black by default. The color used for edge rendering,
in html form eg '#ff00ee'
compute_uv_coords: optional, false by default. If True, compute texture
coordinates (required if the shape has to be textured)
quality: optional, 1.0 by default. If set to something lower than 1.0,
mesh will be more precise. If set to something higher than 1.0,
mesh will be less precise, i.e. lower numer of triangles.
transparency: optional, False by default (opaque).
opacity: optional, float, by default to 1 (opaque). if transparency is set to True,
0. is fully opaque, 1. is fully transparent.
topo_level: "default" by default. The value should be either "compound", "shape", "vertex".
update: optional, False by default. If True, render all the shapes.
"""
if is_wire(shp) or is_edge(shp):
self.AddCurveToScene(shp, shape_color)
if topo_level != "default":
t = TopologyExplorer(shp)
map_type_and_methods = {
"Solid": t.solids,
"Face": t.faces,
"Shell": t.shells,
"Compound": t.compounds,
"Compsolid": t.comp_solids
}
for subshape in map_type_and_methods[topo_level]():
self.AddShapeToScene(subshape, shape_color, render_edges,
edge_color, compute_uv_coords, quality,
transparency, opacity)
else:
self.AddShapeToScene(shp, shape_color, render_edges, edge_color,
compute_uv_coords, quality, transparency,
opacity)
if update:
self.Display()
def AddCurveToScene(self, shp, color):
""" shp is either a TopoDS_Wire or a TopodS_Edge.
"""
if is_edge(shp):
pnts = discretize_edge(shp)
elif is_wire(shp):
pnts = discretize_wire(shp)
np_edge_vertices = np.array(pnts, dtype=np.float32)
np_edge_indices = np.arange(np_edge_vertices.shape[0], dtype=np.uint32)
edge_geometry = BufferGeometry(attributes={
'position': BufferAttribute(np_edge_vertices),
'index' : BufferAttribute(np_edge_indices)
})
edge_material = LineBasicMaterial(color=color, linewidth=1)
edge_lines = Line(geometry=edge_geometry, material=edge_material)
# Add geometries to pickable or non pickable objects
self._displayed_pickable_objects.add(edge_lines)
def AddCurveToScene(self, shp, color):
""" shp is either a TopoDS_Wire or a TopodS_Edge.
"""
if is_edge(shp):
pnts = discretize_edge(shp)
elif is_wire(shp):
pnts = discretize_wire(shp)
np_edge_vertices = np.array(pnts, dtype=np.float32)
np_edge_indices = np.arange(np_edge_vertices.shape[0], dtype=np.uint32)
edge_geometry = BufferGeometry(attributes={
'position': BufferAttribute(np_edge_vertices),
'index' : BufferAttribute(np_edge_indices)
})
edge_material = LineBasicMaterial(color=color, linewidth=2, fog=True)
edge_lines = LineSegments(geometry=edge_geometry, material=edge_material)
# Add geometries to pickable or non pickable objects
self._displayed_pickable_objects.add(edge_lines)
def DisplayShape(self,
shp, # the TopoDS_Shape to be displayed
shape_color=default_shape_color, # the default
render_edges=False,
edge_color=default_edge_color,
compute_uv_coords=False,
quality=1.0,
transparency=False,
opacity=1.,
topo_level='default',
update=False):
""" Displays a topods_shape in the renderer instance.
shp: the TopoDS_Shape to render
shape_color: the shape color, in html corm, eg '#abe000'
render_edges: optional, False by default. If True, compute and dislay all
edges as a linear interpolation of segments.
edge_color: optional, black by default. The color used for edge rendering,
in html form eg '#ff00ee'
compute_uv_coords: optional, false by default. If True, compute texture
coordinates (required if the shape has to be textured)
quality: optional, 1.0 by default. If set to something lower than 1.0,
mesh will be more precise. If set to something higher than 1.0,
mesh will be less precise, i.e. lower numer of triangles.
transparency: optional, False by default (opaque).
opacity: optional, float, by default to 1 (opaque). if transparency is set to True,
0. is fully opaque, 1. is fully transparent.
topo_level: "default" by default. The value should be either "compound", "shape", "vertex".
update: optional, False by default. If True, render all the shapes.
"""
if is_wire(shp) or is_edge(shp):
self.AddCurveToScene(shp, shape_color)
if topo_level != "default":
t = TopologyExplorer(shp)
map_type_and_methods = {"Solid": t.solids, "Face": t.faces, "Shell": t.shells,
"Compound": t.compounds, "Compsolid": t.comp_solids}
for subshape in map_type_and_methods[topo_level]():
self.AddShapeToScene(subshape, shape_color, render_edges, edge_color, compute_uv_coords, quality,
transparency, opacity)
else:
self.AddShapeToScene(shp, shape_color, render_edges, edge_color, compute_uv_coords, quality,
transparency, opacity)
if update:
self.Display()
def DisplayShape(self,
shape,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.,
line_color=(0, 0., 0.),
line_width=2.,
mesh_quality=1.):
# if the shape is an edge or a wire, use the related functions
if is_edge(shape):
print("discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
str_to_write = export_edgedata_to_json(edge_hash, pnts)
edge_full_path = os.path.join(self._path, edge_hash + '.json')
with open(edge_full_path, "w") as edge_file:
edge_file.write(str_to_write)
# store this edge hash
self._3js_edges[edge_hash] = [color, line_width]
return self._3js_shapes, self._3js_edges
elif is_wire(shape):
print("discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
str_to_write = export_edgedata_to_json(wire_hash, pnts)
wire_full_path = os.path.join(self._path, wire_hash + '.json')
with open(wire_full_path, "w") as wire_file:
wire_file.write(str_to_write)
# store this edge hash
self._3js_edges[wire_hash] = [color, line_width]
return self._3js_shapes, self._3js_edges
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
# tesselate
tess = Tesselator(shape)
tess.Compute(compute_edges=export_edges,
mesh_quality=mesh_quality,
uv_coords=False,
parallel=True)
# update spinning cursor
sys.stdout.write("\r%s mesh shape %s, %i triangles " % (next(self.spinning_cursor),
shape_hash,
tess.ObjGetTriangleCount()))
sys.stdout.flush()
# export to 3JS
shape_full_path = os.path.join(self._path, shape_hash + '.json')
# add this shape to the shape dict, sotres everything related to it
self._3js_shapes[shape_hash] = [export_edges, color, specular_color, shininess, transparency, line_color, line_width]
# generate the mesh
#tess.ExportShapeToThreejs(shape_hash, shape_full_path)
# and also to JSON
with open(shape_full_path, 'w') as json_file:
json_file.write(tess.ExportShapeToThreejsJSONString(shape_uuid))
# draw edges if necessary
if export_edges:
# export each edge to a single json
# get number of edges
nbr_edges = tess.ObjGetEdgeCount()
for i_edge in range(nbr_edges):
# after that, the file can be appended
str_to_write = ''
edge_point_set = []
nbr_vertices = tess.ObjEdgeGetVertexCount(i_edge)
for i_vert in range(nbr_vertices):
edge_point_set.append(tess.GetEdgeVertex(i_edge, i_vert))
# write to file
edge_hash = "edg%s" % uuid.uuid4().hex
str_to_write += export_edgedata_to_json(edge_hash, edge_point_set)
# create the file
edge_full_path = os.path.join(self._path, edge_hash + '.json')
with open(edge_full_path, "w") as edge_file:
edge_file.write(str_to_write)
# store this edge hash, with black color
self._3js_edges[hash] = [(0, 0, 0), line_width]
return self._3js_shapes, self._3js_edges
def DisplayShape(
self,
shp,
shape_color=None,
render_edges=False,
edge_color=None,
edge_deflection=0.05,
vertex_color=None,
quality=1.0,
transparency=False,
opacity=1.0,
topo_level="default",
update=False,
selectable=True,
):
"""
Displays a topods_shape in the renderer instance.
:param shp: the TopoDS_Shape to render
:param shape_color: the shape color, in html corm, eg '#abe000'
:param render_edges: optional, False by default. If True, compute and dislay all
edges as a linear interpolation of segments.
:param edge_color: optional, black by default. The color used for edge rendering,
in html form eg '#ff00ee'
:param edge_deflection: optional, 0.05 by default
:param vertex_color: optional
:param quality: optional, 1.0 by default. If set to something lower than 1.0,
mesh will be more precise. If set to something higher than 1.0,
mesh will be less precise, i.e. lower numer of triangles.
:param transparency: optional, False by default (opaque).
:param opacity: optional, float, by default to 1 (opaque). if transparency is set to True,
0. is fully opaque, 1. is fully transparent.
:param topo_level: "default" by default. The value should be either "compound", "shape", "vertex".
:param update: optional, False by default. If True, render all the shapes.
:param selectable: if True, can be doubleclicked from the 3d window
"""
if edge_color is None:
edge_color = self._default_edge_color
if shape_color is None:
shape_color = self._default_shape_color
if vertex_color is None:
vertex_color = self._default_vertex_color
output = [] # a list of all geometries created from the shape
# is it list of gp_Pnt ?
from OCC.Core.gp import gp_Pnt
from OCC.Extend.TopologyUtils import is_edge, is_wire
if isinstance(shp, list) and isinstance(shp[0], gp_Pnt):
result = self.AddVerticesToScene(shp, vertex_color)
output.append(result)
# or a 1d element such as edge or wire ?
elif is_wire(shp) or is_edge(shp):
result = self.AddCurveToScene(shp, edge_color, edge_deflection)
output.append(result)
elif topo_level != "default":
from OCC.Extend.TopologyUtils import TopologyExplorer
t = TopologyExplorer(shp)
map_type_and_methods = {
"Solid": t.solids,
"Face": t.faces,
"Shell": t.shells,
"Compound": t.compounds,
"Compsolid": t.comp_solids,
}
for subshape in map_type_and_methods[topo_level]():
result = self.AddShapeToScene(
subshape,
shape_color,
render_edges,
edge_color,
vertex_color,
quality,
transparency,
opacity,
)
output.append(result)
else:
result = self.AddShapeToScene(
shp,
shape_color,
render_edges,
edge_color,
vertex_color,
quality,
transparency,
opacity,
)
output.append(result)
if selectable: # Add geometries to pickable or non pickable objects
for elem in output:
self._displayed_pickable_objects.add(elem)
if update:
self.Display()
return output
def DisplayShape(self,
shape,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.,
line_color=(0, 0., 0.),
line_width=2.,
mesh_quality=1.):
# if the shape is an edge or a wire, use the related functions
if is_edge(shape):
print("discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
str_to_write = export_edgedata_to_json(edge_hash, pnts)
edge_full_path = os.path.join(self._path, edge_hash + '.json')
with open(edge_full_path, "w") as edge_file:
edge_file.write(str_to_write)
# store this edge hash
self._3js_edges[edge_hash] = [color, line_width]
return self._3js_shapes, self._3js_edges
elif is_wire(shape):
print("discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
str_to_write = export_edgedata_to_json(wire_hash, pnts)
wire_full_path = os.path.join(self._path, wire_hash + '.json')
with open(wire_full_path, "w") as wire_file:
wire_file.write(str_to_write)
# store this edge hash
self._3js_edges[wire_hash] = [color, line_width]
return self._3js_shapes, self._3js_edges
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
# tesselate
tess = Tesselator(shape)
tess.Compute(compute_edges=export_edges,
mesh_quality=mesh_quality,
uv_coords=False,
parallel=True)
# update spinning cursor
sys.stdout.write("\r%s mesh shape %s, %i triangles " % (next(self.spinning_cursor),
shape_hash,
tess.ObjGetTriangleCount()))
sys.stdout.flush()
# export to 3JS
shape_full_path = os.path.join(self._path, shape_hash + '.json')
# add this shape to the shape dict, sotres everything related to it
self._3js_shapes[shape_hash] = [export_edges, color, specular_color, shininess, transparency, line_color, line_width]
# generate the mesh
#tess.ExportShapeToThreejs(shape_hash, shape_full_path)
# and also to JSON
with open(shape_full_path, 'w') as json_file:
json_file.write(tess.ExportShapeToThreejsJSONString(shape_uuid))
# draw edges if necessary
if export_edges:
# export each edge to a single json
# get number of edges
nbr_edges = tess.ObjGetEdgeCount()
for i_edge in range(nbr_edges):
# after that, the file can be appended
str_to_write = ''
edge_point_set = []
nbr_vertices = tess.ObjEdgeGetVertexCount(i_edge)
for i_vert in range(nbr_vertices):
edge_point_set.append(tess.GetEdgeVertex(i_edge, i_vert))
# write to file
edge_hash = "edg%s" % uuid.uuid4().hex
str_to_write += export_edgedata_to_json(edge_hash, edge_point_set)
# create the file
edge_full_path = os.path.join(self._path, edge_hash + '.json')
with open(edge_full_path, "w") as edge_file:
edge_file.write(str_to_write)
# store this edge hash, with black color
self._3js_edges[hash] = [(0, 0, 0), line_width]
return self._3js_shapes, self._3js_edges
def ConvertShape(
self,
shape,
export_edges=False,
color=(0.65, 0.65, 0.7),
specular_color=(0.2, 0.2, 0.2),
shininess=0.9,
transparency=0.0,
line_color=(0, 0.0, 0.0),
line_width=1.0,
point_size=1.0,
mesh_quality=1.0,
):
# if the shape is an edge or a wire, use the related functions
color = color_to_hex(color)
specular_color = color_to_hex(specular_color)
if is_edge(shape):
print("discretize an edge")
pnts = discretize_edge(shape)
edge_hash = "edg%s" % uuid.uuid4().hex
shape_content = export_edgedata_to_json(edge_hash, pnts)
# store this edge hash
self._3js_edges[edge_hash] = [color, line_width, shape_content]
return self._3js_shapes, self._3js_edges, self._3js_vertex
elif is_wire(shape):
print("discretize a wire")
pnts = discretize_wire(shape)
wire_hash = "wir%s" % uuid.uuid4().hex
shape_content = export_edgedata_to_json(wire_hash, pnts)
# store this edge hash
self._3js_edges[wire_hash] = [color, line_width, shape_content]
return self._3js_shapes, self._3js_edges, self._3js_vertex
# if shape is array of gp_Pnt
elif isinstance(shape, list) and isinstance(shape[0], gp_Pnt):
print("storage points")
vertices_list = [] # will be passed to javascript
BB = BRep_Builder()
compound = TopoDS_Compound()
BB.MakeCompound(compound)
for vertex in shape:
vertext_to_add = BRepBuilderAPI_MakeVertex(vertex).Shape()
BB.Add(compound, vertext_to_add)
vertices_list.append([vertex.X(), vertex.Y(), vertex.Z()])
points_hash = "pnt%s" % uuid.uuid4().hex
# store this vertex hash. Note: TopoDS_Compound did not save now
self._3js_vertex[points_hash] = [color, point_size, vertices_list]
return self._3js_shapes, self._3js_edges, self._3js_vertex
# convert as TopoDS_Shape
shape_uuid = uuid.uuid4().hex
shape_hash = "shp%s" % shape_uuid
# tesselate
tess = ShapeTesselator(shape)
tess.Compute(compute_edges=export_edges,
mesh_quality=mesh_quality,
parallel=True)
# update spinning cursor
sys.stdout.write("\r%s mesh shape %s, %i triangles " % (next(
self.spinning_cursor), shape_hash, tess.ObjGetTriangleCount()))
sys.stdout.flush()
# export to 3JS
# generate the mesh
shape_content = tess.ExportShapeToThreejsJSONString(shape_uuid)
# add this shape to the shape dict, sotres everything related to it
self._3js_shapes[shape_hash] = [
export_edges,
color,
specular_color,
shininess,
transparency,
line_color,
line_width,
shape_content,
]
# draw edges if necessary
if export_edges:
# export each edge to a single json
# get number of edges
nbr_edges = tess.ObjGetEdgeCount()
for i_edge in range(nbr_edges):
# after that, the file can be appended
edge_content = ""
edge_point_set = []
nbr_vertices = tess.ObjEdgeGetVertexCount(i_edge)
for i_vert in range(nbr_vertices):
edge_point_set.append(tess.GetEdgeVertex(i_edge, i_vert))
# write to file
edge_hash = "edg%s" % uuid.uuid4().hex
edge_content += export_edgedata_to_json(
edge_hash, edge_point_set)
# store this edge hash, with black color
self._3js_edges[edge_hash] = [
color_to_hex((0, 0, 0)),
line_width,
edge_content,
]
return self._3js_shapes, self._3js_edges, self._3js_vertex
