def test_export_stl_ascii_multi(nurbs_surface_decompose):
fname = FILE_NAME + ".stl"
nurbs_multi = operations.decompose_surface(nurbs_surface_decompose)
nurbs_multi.sample_size = SAMPLE_SIZE
exchange.export_stl(nurbs_multi, fname, binary=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(fname):
os.remove(fname)
def test_export_off_multi(nurbs_surface_decompose):
fname = FILE_NAME + ".off"
data = operations.decompose_surface(nurbs_surface_decompose)
nurbs_multi = multi.SurfaceContainer(data)
nurbs_multi.sample_size = SAMPLE_SIZE
exchange.export_off(nurbs_multi, fname)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(fname):
os.remove(fname)
def test_export_stl_ascii_multi(nurbs_surface_decompose):
fname = FILE_NAME + ".stl"
data = operations.decompose_surface(nurbs_surface_decompose)
nurbs_multi = multi.SurfaceContainer(data)
nurbs_multi.sample_size = SAMPLE_SIZE
exchange.export_stl(nurbs_multi, fname, binary=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(fname):
os.remove(fname)
def test_surf_multi_fig_save(bspline_surface):
conf = VisMPL.VisConfig()
vis = VisMPL.VisSurfWireframe(config=conf)
fname = "test-multi_surface.png"
multi = operations.decompose_surface(bspline_surface)
multi.vis = vis
multi.render(filename=fname, plot=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(fname):
os.remove(fname)
def test_surf_multi_fig_nowindow(bspline_surface):
conf = VisMPL.VisConfig()
vis = VisMPL.VisSurfScatter(config=conf)
fname = conf.figure_image_filename
multi = operations.decompose_surface(bspline_surface)
multi.vis = vis
multi.render(plot=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(conf.figure_image_filename):
os.remove(conf.figure_image_filename)
def test_surf_multi_fig_save(bspline_surface):
conf = VisMPL.VisConfig()
vis = VisMPL.VisSurfWireframe(config=conf)
fname = "test-multi_surface.png"
data = operations.decompose_surface(bspline_surface)
multi_shape = multi.SurfaceContainer(data)
multi_shape.vis = vis
multi_shape.render(filename=fname, plot=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(fname):
os.remove(fname)
def test_surf_multi_fig_nowindow(bspline_surface):
conf = VisMPL.VisConfig()
vis = VisMPL.VisSurfScatter(config=conf)
fname = conf.figure_image_filename
data = operations.decompose_surface(bspline_surface)
multi_shape = multi.SurfaceContainer(data)
multi_shape.vis = vis
multi_shape.render(plot=False)
assert os.path.isfile(fname)
assert os.path.getsize(fname) > 0
# Clean up temporary file if exists
if os.path.isfile(conf.figure_image_filename):
os.remove(conf.figure_image_filename)
surf = NURBS.Surface()
# Set degrees
surf.degree_u = 1
surf.degree_v = 2
# Set control points
surf.set_ctrlpts(
*exchange.import_txt("ex_cylinder.cptw", two_dimensional=True))
# Set knot vector
surf.knotvector_u = [0, 0, 1, 1]
surf.knotvector_v = [0, 0, 0, 0.25, 0.25, 0.5, 0.5, 0.75, 0.75, 1, 1, 1]
# Decompose the surface
surf_list = operations.decompose_surface(surf)
surfaces = multi.SurfaceContainer(surf_list)
# Translate one of the surface patch
operations.translate(surfaces[1], (-0.25, 0.25, 0), inplace=True)
# Set number of samples for all split surfaces
surfaces.sample_size = 50
# Plot the control point grid and the evaluated surface
vis_comp = VisMPL.VisSurfWireframe()
surfaces.vis = vis_comp
surfaces.render()
# Good to have something here to put a breakpoint
pass
# Create a BSpline surface instance
surf = BSpline.Surface()
# Set degrees
surf.degree_u = 3
surf.degree_v = 3
# Set control points
surf.set_ctrlpts(
*exchange.import_txt("ex_surface01.cpt", two_dimensional=True))
# Set knot vectors
surf.knotvector_u = [0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 3.0, 3.0, 3.0, 3.0]
surf.knotvector_v = [0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 3.0, 3.0, 3.0, 3.0]
# Decompose the surface
surfaces = operations.decompose_surface(surf)
# Set number of samples for all split surfaces
surfaces.sample_size = 20
# Plot the control point grid and the evaluated surface
vis_config = VisMPL.VisConfig(legend=False)
vis_comp = VisMPL.VisSurface(vis_config)
surfaces.vis = vis_comp
surfaces.render()
# Good to have something here to put a breakpoint
pass
# -*- coding: utf-8 -*-
"""
Examples for the NURBS-Python Package
Released under MIT License
Developed by Onur Rauf Bingol (c) 2019
Exporting multiple NURBS surfaces in VTK Polydata format
"""
from geomdl.shapes import surface
from geomdl import operations
from geomdl import multi
from geomdl import exchange_vtk
# Create a cylindrical surface
cylinder = surface.cylinder(radius=5.0, height=22.5)
# Decompose to generate multiple surfaces
cylinder_decomposed = operations.decompose_surface(cylinder)
# Add decomposed surfaces to a surface container
surf_container = multi.SurfaceContainer(cylinder_decomposed)
# Export evaluated points as a .vtk file
exchange_vtk.export_polydata(surf_container,
"cylindrical_surface_decomposed_evalpts.vtk",
tessellate=True)
# Good to have something here to put a breakpoint
pass
# Set knot vectors surf1.knotvector_u = [0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 3.0, 3.0, 3.0, 3.0] surf1.knotvector_v = [0.0, 0.0, 0.0, 0.0, 1.0, 2.0, 3.0, 3.0, 3.0, 3.0] # Set evaluation delta surf1.delta = 0.025 # Rotate surf1 and generate a copy in surf2 surf2 = operations.rotate(surf1, 45, axis=2) # Visualize surfaces msurf1 = multi.SurfaceContainer(surf1, surf2) msurf1.vis = vis.VisSurface() msurf1.render() # Decompose surf1 surf1_decomposed = operations.decompose_surface(surf1) msurf2 = multi.SurfaceContainer(surf1_decomposed) # Rotate decomposed surface msurf2_rotated = operations.rotate(msurf2, 90, axis=1) # Visualize decomposed and decomposed-rotated surfaces msurf3 = multi.SurfaceContainer(msurf2, msurf2_rotated) msurf3.vis = vis.VisSurface() msurf3.render() # Good to have something here to put a breakpoint pass
