def __init__(self, positions,
radii = None,
colors = None,
force_centering = False,
affine = None,
*args, **kwargs):
""" Draw a set of spheres in 3D """
super(SphereCloud, self).__init__()
if affine == None:
# create a default affine
self.affine = np.eye(4, dtype = np.float32)
else:
self.affine = affine
self._update_glaffine()
self.positions = positions
n = len(positions)
if colors == None:
# default colors
self.colors = np.array( [[1,1,1,1]], dtype = np.float32).repeat(len(self.positions),axis=0)
else:
self.colors = colors.astype( np.ubyte )
if radii == None:
# default colors
self.radii = np.array( [1.0], dtype = np.float32).repeat(len(self.positions),axis=0)
else:
assert(len(positions) == len(radii))
self.radii = radii
# create vertices / faces for the primitive
# which is a sphere in this actor
mys = np.load(get_sphere())
v = mys['vertices'].astype(np.float32)
f = mys['faces'].astype(np.uint32)
lv = v.shape[0]
lf = f.shape[0]
# allocate memory
vertices = np.zeros( (lv * n, 3), np.float32 )
faces = np.zeros( (lf * n, 3), np.uint32 )
vertexcolors = np.zeros( (lv * n, 4), np.float32 )
for i, n in enumerate(range(n)):
# scale the unit-sphere by the radius
vertices[i*lv:((i+1)*lv),:] = v * self.radii[i] + self.positions[i,:]
# add the number of vertices
faces[i*lf:((i+1)*lf),:] = f + (i * lv)
# coloring the vertices
vertexcolors[i*lv:((i+1)*lv),:] = self.colors[i,:].reshape( (1, 4) ).repeat(lv, axis=0)
self.vertices = vertices
self.faces = faces.astype(np.uint32)
self.colors = vertexcolors.astype(np.float32)
self.show_aabb = True
self.make_aabb(margin = 0)
# bind the vertex arrays
self.vert_ptr = self.vertices.ctypes.data
self.face_ptr = self.faces.ctypes.data
self.color_ptr = self.colors.ctypes.data
self.el_count = len(self.faces) * 3
def __init__(self,
positions,
radii=None,
colors=None,
force_centering=False,
affine=None,
*args,
**kwargs):
""" Draw a set of spheres in 3D """
super(SphereCloud, self).__init__()
if affine == None:
# create a default affine
self.affine = np.eye(4, dtype=np.float32)
else:
self.affine = affine
self._update_glaffine()
self.positions = positions
n = len(positions)
if colors == None:
# default colors
self.colors = np.array([[1, 1, 1, 1]], dtype=np.float32).repeat(
len(self.positions), axis=0)
else:
self.colors = colors.astype(np.ubyte)
if radii == None:
# default colors
self.radii = np.array([1.0],
dtype=np.float32).repeat(len(self.positions),
axis=0)
else:
assert (len(positions) == len(radii))
self.radii = radii
# create vertices / faces for the primitive
# which is a sphere in this actor
mys = np.load(get_sphere())
v = mys['vertices'].astype(np.float32)
f = mys['faces'].astype(np.uint32)
lv = v.shape[0]
lf = f.shape[0]
# allocate memory
vertices = np.zeros((lv * n, 3), np.float32)
faces = np.zeros((lf * n, 3), np.uint32)
vertexcolors = np.zeros((lv * n, 4), np.float32)
for i, n in enumerate(range(n)):
# scale the unit-sphere by the radius
vertices[i * lv:((i + 1) *
lv), :] = v * self.radii[i] + self.positions[i, :]
# add the number of vertices
faces[i * lf:((i + 1) * lf), :] = f + (i * lv)
# coloring the vertices
vertexcolors[i * lv:((i + 1) * lv), :] = self.colors[i, :].reshape(
(1, 4)).repeat(lv, axis=0)
self.vertices = vertices
self.faces = faces.astype(np.uint32)
self.colors = vertexcolors.astype(np.float32)
self.show_aabb = True
self.make_aabb(margin=0)
# bind the vertex arrays
self.vert_ptr = self.vertices.ctypes.data
self.face_ptr = self.faces.ctypes.data
self.color_ptr = self.colors.ctypes.data
self.el_count = len(self.faces) * 3
import numpy as np
from fos.comp_geom.gen_normals import auto_normals
from fos.data import get_sphere
from fos.actor.surf import Surface
from fos import Window, WindowManager, World, DefaultCamera
from fos.core.color import red,green,blue,white,black
from fos.core.material import Material
from fos.core.light import Light
eds=np.load(get_sphere())
vertices=eds['vertices']
faces=eds['faces']
vertices=100*vertices.astype(np.float32)
faces=faces.astype(np.uint32)
print('vertices.shape %s' % vertices.dtype)
print('faces.shape %s' % faces.dtype)
colors=np.random.rand(len(vertices),4)
colors=colors.astype('f4')
colors[:,3]=1
normals=auto_normals(vertices,faces)
print('normals.shape %d %d' % normals.shape)
print('colors.shape %d %d' % colors.shape)
print(vertices.dtype,faces.dtype, colors.dtype, normals.dtype)
aff = np.eye(4,dtype='f4')
aff[:3,3] = [0,0,0]
import numpy as np
from fos.comp_geom.gen_normals import auto_normals
from fos.data import get_sphere
eds = np.load(get_sphere('symmetric362')) # problem with 642
vertices = eds['vertices']
faces = eds['faces']
vertices = 50 * vertices.astype('f4')
faces = faces.astype(np.uint32)
colors = np.ones((len(vertices), 4)).astype('f4')
#colors[0]=np.array([1.,0.,0.,1.]).astype('f4')
colors[:, :3] = np.random.rand(len(vertices), 3).astype('f4')
len(vertices)
print 'vertices.shape', vertices.shape, vertices.dtype
print 'faces.shape', faces.shape, faces.dtype
normals = auto_normals(vertices, faces)
print vertices.min(), vertices.max(), vertices.mean()
print normals.min(), normals.max(), normals.mean()
print vertices.dtype, faces.dtype, colors.dtype, normals.dtype
from fos.actor.surf import Surface
from fos import Window, World, DefaultCamera
aff = np.eye(4, dtype=np.float32)
#aff[0,3] = 30
import numpy as np
from fos.comp_geom.gen_normals import auto_normals
from fos.data import get_sphere
eds=np.load(get_sphere('symmetric362'))
vertices=eds['vertices']
faces=eds['faces']
vertices=vertices.astype(np.float32)
faces=faces.astype(np.uint32)
colors=np.ones((len(vertices),4))
len(vertices)
print 'vertices.shape', vertices.shape, vertices.dtype
print 'faces.shape', faces.shape,faces.dtype
normals=auto_normals(vertices,faces)
print vertices.min(),vertices.max(),vertices.mean()
print normals.min(),normals.max(), normals.mean()
print vertices.dtype,faces.dtype, colors.dtype, normals.dtype
from fos.actor.surf import Surface
from fos import Window, World, DefaultCamera