Ejemplo n.º 1
0
 def init(self):
     Model.init(self)
     if(hasattr(self.terrain_model, 'init')):
         self.terrain_model.init()
     for scene in self.subscene_list:
         if(hasattr(scene, 'init')):
             scene.init()
Ejemplo n.º 2
0
 def __init__(self, data_points, num_samples_rendering = (34, 34)):
     '''
     data_points is in row major order, namely the 16 rows of the array
     correspond to (s,t) values (0,0), (0,1),(0,2), (0,3), (1, 0), (1,1),...
     and so on.
     num_samples_rendering refers to the number of samples that would be used
     by the draw_scene() function when rendering the patch
     '''
     Model.__init__(self)
     self.data_points = data_points
     self.num_samples_rendering = num_samples_rendering
     
     self.B = np.linalg.inv( [ [0, 1, 8, 27], [0, 1, 4, 9], [0, 1, 2, 3], [1, 1, 1, 1]])
     self.MatX = np.dot( np.transpose(self.B), np.dot( np.reshape(data_points[:,0], (4,4)), self.B ))
     self.MatY = np.dot( np.transpose(self.B), np.dot( np.reshape(data_points[:,1], (4,4)), self.B ))
     self.MatZ = np.dot( np.transpose(self.B), np.dot( np.reshape(data_points[:,2], (4,4)), self.B )) 
Ejemplo n.º 3
0
    def __init__(self, data_points = None, num_samples_rendering = 101):
        '''
        A set of data points can be optionally provided during instantiaion.
        The format is a list of tuples, where each tuple consists of a point
        and tangent at that point. Both point and tangents are represented by
        arrays.
        [(p0, m0), (p1, m1), (p2, m2)] where point p0 = [x0, y0, z0] and
        m0 = [mx0, my0, mz0] the tangent at p0, and so on.
        '''
        Model.__init__(self)
        self.num_samples_rendering = num_samples_rendering
        self.B_Hermite = inv([[0, 1, 0, 3], [0, 1, 0, 2], [0, 1, 1, 1], [1, 1, 0, 0]])

        self.coeff_matrix = [] # list of basis vector matrices for each segment
        self.point_tangent_list = []

        if data_points is not None:
            set_data(data_points)
Ejemplo n.º 4
0
 def __init__(self, terrain_model, subscene_list = []):
     Model.__init__(self)
     self.terrain_model = terrain_model
     self.subscene_list = subscene_list