def calculate_segments(self, nbins):
angles = np.linspace(self.end_angle, self.start_angle, nbins + 1) * np.pi / 180.
points = np.zeros((nbins+1, 2), dtype=np.float32)
points[:, 0] = self.radius * np.cos(angles) + self.center[0]
points[:, 1] = self.radius * np.sin(angles) + self.center[1]
return math2d.create_segments_from_points(points)
def calculate_segments(self, nbins):
angles = np.linspace(self.end_angle, self.start_angle,
nbins + 1) * np.pi / 180.
points = np.zeros((nbins + 1, 2), dtype=np.float32)
points[:, 0] = self.radius * np.cos(angles) + self.center[0]
points[:, 1] = self.radius * np.sin(angles) + self.center[1]
return math2d.create_segments_from_points(points)
def calculate_segments(self, nbins):
points = np.zeros((nbins+1, 2))
points[:, 1] = np.linspace(-self.width / 2., self.width / 2., nbins+1)
rot = math2d.angle_matrix(self.angle)
points = np.dot(points, rot)
points[:, 0] += self.center[0]
points[:, 1] += self.center[1]
return math2d.create_segments_from_points(points)
def calculate_segments(self, nbins):
points = np.zeros((nbins + 1, 2))
points[:, 1] = np.linspace(-self.width / 2., self.width / 2.,
nbins + 1)
rot = math2d.angle_matrix(self.angle)
points = np.dot(points, rot)
points[:, 0] += self.center[0]
points[:, 1] += self.center[1]
return math2d.create_segments_from_points(points)
def create_circle(radius, n_segments=20):
points = np.zeros((n_segments + 1, 2), dtype=np.float32)
radians = np.linspace(0., 2 * np.pi, n_segments + 1)[:-1][::-1]
points[:-1, 0] = np.cos(radians) * radius
points[:-1, 1] = np.sin(radians) * radius
points[-1] = points[0]
segments = math2d.create_segments_from_points(points)
return Mesh(segments)
def create_circle(radius, n_segments=20):
points = np.zeros((n_segments + 1, 2), dtype=np.float32)
radians = np.linspace(0., 2 * np.pi, n_segments + 1)[:-1][::-1]
points[:-1, 0] = np.cos(radians) * radius
points[:-1, 1] = np.sin(radians) * radius
points[-1] = points[0]
segments = math2d.create_segments_from_points(points)
return Mesh(segments)
def create_rectangle(w, h):
points = np.zeros((5, 2), dtype=np.float32)
points[0] = [w , h]
points[1] = [w, -h]
points[2] = [-w, -h]
points[3] = [-w, h]
points[4] = [w, h]
points /= 2.
segments = math2d.create_segments_from_points(points)
return Mesh(segments)
def create_rectangle(w, h):
points = np.zeros((5, 2), dtype=np.float32)
points[0] = [w, h]
points[1] = [w, -h]
points[2] = [-w, -h]
points[3] = [-w, h]
points[4] = [w, h]
points /= 2.
segments = math2d.create_segments_from_points(points)
return Mesh(segments)
