def rotate(self, angle=0):
""" Rotate this face by some angle, given in degrees.
"""
theta = deg2rad(angle)
t = transform.Transformation(math.cos(theta), -math.sin(theta), 0,
math.sin(theta), math.cos(theta), 0)
self.transform = self.transform.multiply(t)
def obj_repr(self, render_params):
"""
Returns complete representation of the point as a sphere.
TESTS::
sage: P = point3d((1,2,3),size=3,color='purple')
sage: P.obj_repr(P.default_render_params())[0][0:2]
['g obj_1', 'usemtl texture...']
"""
T = render_params.transform
if T is None:
import transform
T = transform.Transformation()
render_params.push_transform(~T)
S = shapes.Sphere(self.size / 200.0).translate(T(self.loc))
cmds = S.obj_repr(render_params)
render_params.pop_transform()
return cmds
def obj_repr(self, render_params):
"""
Returns complete representation of the line as an object.
TESTS::
sage: from sage.plot.plot3d.shapes2 import Line
sage: L = Line([(cos(i),sin(i),i^2) for i in srange(0,10,.01)],color='red')
sage: L.obj_repr(L.default_render_params())[0][0][0][2][:3]
['v 0.99995 0.00999983 0.0001', 'v 1.00007 0.0102504 -0.0248984', 'v 1.02376 0.010195 -0.00750607']
"""
T = render_params.transform
if T is None:
import transform
T = transform.Transformation()
render_params.push_transform(~T)
L = line3d([T(P) for P in self.points], radius=self.thickness / 200.0, arrow_head=self.arrow_head, texture=self.texture)
cmds = L.obj_repr(render_params)
render_params.pop_transform()
return cmds
def scale(self, factor=1):
""" Scale this face by a factor.
"""
t = transform.Transformation(factor, 0, 0, 0, factor, 0)
self.transform = self.transform.multiply(t)
def translate(self, xdistance=0, ydistance=0):
""" Move this face by some distance.
"""
t = transform.Transformation(1, 0, xdistance, 0, 1, ydistance)
self.transform = self.transform.multiply(t)
def __init__(self, edgeA, edgeB, edgeC):
mesh.Triangle.__init__(self, edgeA, edgeB, edgeC)
self.transform = transform.Transformation(1 / average_edge_length, 0,
0, 0,
-1 / average_edge_length, 0)