def test_laplace():
props = make_props(petsc=' -iga_elements 1')
assert allclose(laplace_test(props),0.03723796978507308)
props = make_props(petsc=' -iga_elements 10')
assert allclose(laplace_test(props),0.000109646)
def laplace_plot(props):
petsc = props.petsc()
elements = 2**arange(2,7)
errors = []
for e in elements:
props.petsc.set(petsc+' -iga_elements %d'%e)
errors.append(laplace_test(props))
a,b = polyfit(log(elements),log(errors),deg=1)
Log.write('slope = %g'%a)
import pylab
pylab.loglog(elements,errors,'bo-',label='errors')
pylab.loglog(elements,exp(a*log(elements)+b),'g-',label='fit')
pylab.legend()
pylab.show()
if __name__=='__main__':
props = make_props()
parser.parse(props,'Laplace test')
print('command = %s'%parser.command(props))
if props.plot():
laplace_plot(props)
else:
laplace_test(props)
def main(): parser.parse(props,'visualizer') view()
def test_dirichlet_linear():
props = make_props(bc='dirichlet',order=1,resolution=2)
u,e = laplace_test(props)
assert allclose(e,13/162)
assert allclose(u.local_copy(),[13/36,25/36])
def test_dirichlet_quadratic():
props = make_props(bc='dirichlet',order=2,resolution=1)
u,e = laplace_test(props)
assert allclose(e,0)
assert allclose(u.local_copy(),[1/2])
def test_neumann_linear():
props = make_props(bc='neumann',order=1,resolution=1)
u,e = laplace_test(props)
assert allclose(e,0) # Zero only because of low order quadrature
assert allclose(u.local_copy(),asarray([-5,-1,-1,7])/6)
def test_neumann_quadratic():
props = make_props(bc='neumann',order=2,resolution=1)
u,e = laplace_test(props)
assert allclose(e,0)
assert allclose(u.local_copy(),asarray([-10,2,2,14,-7,-7,-4,5,5])/12)
if __name__=='__main__':
props = make_props()
parser.parse(props,'Laplace test')
print('command = %s'%parser.command(props))
laplace_test(props)
def main(): #Pulls the properties for props parser.parse(props,'visualizer') view_1()
if any([s in props_set for s in 'origin target rotation'.split()]):
cam = main.view.cam
d = target()-origin()
cam.distance = magnitude(d)
d = normalized(d)
up = normalized(projected_orthogonal_to_unit_direction((0,0,1),d))
cam.frame = Frames(target(),Rotation.from_matrix(vstack([cross(d,up),up,-d]).T.copy()))
else:
main.view.show_all(True)
def dump():
thicken_instances.dump(0)
if __name__=='__main__':
Log.configure('fractal',0,0,100)
props_set = parser.parse(props,'Dragon curve visualizer')
if console():
up_frame = Prop('up_frame',Frame.identity(3))
load_misc(props_set)
if output():
save_mesh()
if mitsuba_dir():
save_mitsuba()
else:
from OpenGL import GL
app = QEApp(sys.argv,True)
main = MainWindow(props)
main.view.add_scene('dragon',DragonScene())
extra = MeshScene(props,cache(lambda:extra_mesh()[0]),cache(lambda:extra_mesh()[1]),(.1,.3,.9),(.1,.9,.2))
extra.active = cache(lambda:bool(extra_mesh_name()))
main.view.add_scene('extra',extra)
if data.shape:
return '{'+','.join(cpp_init(format,d) for d in data)+'}'
else:
return format%data
props = PropManager()
prefix = props.add('prefix','gen').set_help('directory to store generated files')
def save(filename,tables):
note = '// Autogenerated by precompute: do not edit directly'
for header in 0,1:
file = open('%s/%s.%s'%(prefix(),filename,('h' if header else 'cpp')),'w')
print>>file, note
if header:
print>>file, '#pragma once\n\n#include <geode/utility/config.h>\n#include <stdint.h>'
else:
print>>file, '#include "%s.h"'%filename
print>>file, 'namespace pentago {\n'
for type,name,format,data in tables:
if header:
print>>file, 'GEODE_EXPORT extern const %s %s%s;'%(type,name,cpp_sizes(data))
else:
print>>file, 'const %s %s%s = %s;'%(type,name,cpp_sizes(data),cpp_init(format,data))
print>>file, '\n}'
if __name__=='__main__':
parser.parse(props,'Pentago precomputation script',positional=[prefix])
if not os.path.exists(prefix()):
os.makedirs(prefix())
save('tables',[t for f in remembered for t in f()])