def test_matrix(self):
"""Test that a texture matrix can produce a proper scale/offset"""
map = self.atlasManager.add(NumpyAdapter(zeros((64, 64, 4), 'B')))
matrix = map.matrix()
assert matrix is not None
bottom_left = dot(array([0, 0, 0, 1], 'f'), matrix)
assert allclose(bottom_left, [0, 0, 0, 1]), bottom_left
top_right = dot(array([1, 1, 0, 1], 'f'), matrix)
assert allclose(top_right, [.25, .25, 0, 1]), top_right
map = self.atlasManager.add(NumpyAdapter(zeros((64, 64, 4), 'B')))
matrix = map.matrix()
assert matrix is not None
bottom_left = dot(array([0, 0, 0, 1], 'f'), matrix)
assert allclose(bottom_left, [.25, 0, 0, 1]), (bottom_left, matrix)
top_right = dot(array([1, 1, 0, 1], 'f'), matrix)
assert allclose(top_right, [.5, .25, 0, 1]), (top_right, matrix)
set = dot(array([[0, 0, 0, 1], [1, 1, 0, 1]], 'f'), matrix)
assert allclose(set, [[.25, 0, 0, 1], [.5, .25, 0, 1]]), (set, matrix)
def _partialSphere(cls, latsteps, longsteps):
"""Create a partial-sphere data-set for latsteps and longsteps
returns (coordarray, indexarray)
"""
ystep = len(longsteps)
zstep = len(latsteps)
xstep = 1
coords = zeros((zstep, ystep, 8), 'f')
coords[:, :, 0] = sin(longsteps)
coords[:, :, 1] = cos(latsteps).reshape((-1, 1))
coords[:, :, 2] = cos(longsteps)
coords[:, :, 3] = longsteps / (2 * pi)
coords[:, :, 4] = latsteps.reshape((-1, 1)) / pi
# now scale by sin of y's
scale = sin(latsteps).reshape((-1, 1))
coords[:, :, 0] *= scale
coords[:, :, 2] *= scale
coords[:, :, 5:8] = coords[:, :, 0:3] # normals
indices = mesh_indices(zstep, ystep)
# now optimize/simplify the data-set...
new_indices = []
for (i, iSet) in enumerate(indices):
angle = latsteps[i]
nextAngle = latsteps[i + 1]
if allclose(angle % (pi * 2), 0):
iSet = iSet.reshape((-1, 3))[::2]
elif allclose(nextAngle % (pi), 0):
iSet = iSet.reshape((-1, 3))[1::2]
else:
iSet = iSet.reshape((-1, 3))
new_indices.append(iSet)
indices = concatenate(new_indices)
return coords.reshape((-1, 8)), indices.reshape((-1, ))
def transform( self, mode=None, translate=1, scale=1, rotate=1 ):
''' Perform the actual alteration of the current matrix '''
if translate and any(self.translation):
x,y = self.translation
glTranslatef(x,y,0)
if (rotate or scale) and any(self.center):
cx,cy = self.center
glTranslatef(cx,cy,0)
if rotate and self.rotation:
glRotatef( self.rotation * RADTODEG, 0,0,1)
if scale and not allclose(self.scale, NULLSCALE):
sx,sy = self.scale
glScalef( sx,sy,1.0 )
if (rotate or scale) and any(self.center):
glTranslatef( -cx,-cy,0)
def transform( self, mode=None, translate=1, scale=1, rotate=1 ):
''' Perform the actual alteration of the current matrix '''
if translate and any(self.translation):
x,y = self.translation
glTranslatef(x,y,0)
if (rotate or scale) and any(self.center):
cx,cy = self.center
glTranslatef(cx,cy,0)
if rotate and self.rotation:
glRotatef( self.rotation * RADTODEG, 0,0,1)
if scale and not allclose(self.scale, NULLSCALE):
sx,sy = self.scale
glScalef( sx,sy,1.0 )
if (rotate or scale) and any(self.center):
glTranslatef( -cx,-cy,0)
def test_from_config(self):
cfg = ConfigParser.ConfigParser()
cfg.read(sample_ini)
cd = ContextDefinition.fromConfig(cfg)
assert arrays.allclose(cd.size, [600, 600]), cd.size
assert cd.title == "Test Context", cd.title
assert cd.doubleBuffer == False, cd.doubleBuffer
assert cd.depthBuffer == 16, cd.depthBuffer
assert cd.accumulationBuffer == 16
assert cd.stencilBuffer == 16
assert cd.rgb == False
assert cd.alpha == False
assert cd.multisampleBuffer == 16
assert cd.multisampleSamples == 4
assert cd.stereo == 23