def draw_vertices(self, vertices=None, color=None):
"""Draw a selection of vertices.
Parameters
----------
vertices : list[int], optional
A selection of vertices to draw.
Default is None, in which case all vertices are drawn.
color : tuple[int, int, int] or dict[int, tuple[int, int, int]], optional
The color specification for the vertices.
The default is the value of :attr:`MeshArtist.default_vertexcolor`.
Returns
-------
list[:rhino:`Rhino.Geometry.Point3d`]
"""
self.vertex_color = color
vertices = vertices or list(self.mesh.vertices())
vertex_xyz = self.vertex_xyz
points = []
for vertex in vertices:
points.append({
'pos':
vertex_xyz[vertex],
'name':
"{}.vertex.{}".format(self.mesh.name, vertex),
'color':
self.vertex_color.get(vertex, self.default_vertexcolor)
})
return compas_ghpython.draw_points(points)
def draw_origin(self):
"""Draw the frame's origin.
Returns
-------
:class:`Rhino.Geometry.Point`
"""
point, _ = self._get_args(self.primitive, self.scale,
self.color_origin, self.color_xaxis,
self.color_yaxis, self.color_zaxis)
return compas_ghpython.draw_points([point])[0]
def draw(self, point=None, show_point=False):
"""Draw the vector.
Parameters
----------
point : [float, float, float] or :class:`compas.geometry.Point`, optional
Point of application of the vector.
Default is ``Point(0, 0, 0)``.
show_point : bool, optional
If True, draw the point of application of the vector.
Returns
-------
list[:rhino:`Rhino.Geometry.Point3d`, :rhino:`Rhino.Geometry.Line`]
The Rhino line and endpoints, if requested.
"""
if not point:
point = [0, 0, 0]
start = Point(*point)
end = start + self.primitive
start = list(start)
end = list(end)
result = []
if show_point:
points = [{
'pos': start,
'color': self.color,
'name': self.primitive.name
}]
result += compas_ghpython.draw_points(points)
lines = [{
'start': start,
'end': end,
'arrow': 'end',
'color': self.color,
'name': self.primitive.name
}]
result += compas_ghpython.draw_lines(lines)
return result
