def main():
"""
python3 -m gumby.core
"""
import meshlab_pickedpoints
from .path import relative_to_project
from .landmarks import print_landmarks
original_mesh = lacecore.load_obj(
relative_to_project("examples/vitra/vitra.obj"), triangulate=True)
landmarks = meshlab_pickedpoints.load(
relative_to_project("examples/vitra/vitra.pp"))
print_landmarks(landmarks, units="cm", precision=1)
segments = [
("leg seam", "knee bottom", 20),
("knee bottom", "knee top", 10),
("knee top", "leg top", 10),
("back middle", "back top", 50),
]
stretched = stretch_segments_along_y(mesh=original_mesh,
landmarks=landmarks,
segments=segments)
stretched.write_obj("stretched.obj")
def test_render_longest_xsection_to_svg():
mesh = lacecore.load_obj(
"examples/vitra/vitra_without_materials.obj", triangulate=True
)
plane = Plane(
point_on_plane=np.array([-0.869231, 60.8882, -20.1071]),
unit_normal=vg.normalize(np.array([0.0, 0.1, -1.0])),
)
xs = render_longest_xsection_to_svg(
mesh=mesh, plane=plane, filename="vitra_cross_section.svg"
)
Scene().add_meshes(mesh).add_lines(xs).write("vitra_with_cross_section.dae")
def horizontal_xs(mesh_path, heights, out, reference):
"""
Find the horizontal cross section at the given height and write it to an
SVG file. Optionally write a COLLADA reference with the mesh and cross
section.
"""
import os
import lacecore
import numpy as np
from polliwog import Plane
from tri_again import Scene
import vg
from .core import render_longest_xsection_to_svg
if reference and not reference.endswith(".dae"):
raise ValueError("reference-mesh should end with .dae")
mesh = lacecore.load_obj(mesh_path, triangulate=True)
reference_lines = []
for height in heights:
if out is None:
filename, extension = os.path.splitext(os.path.basename(mesh_path))
out_path = "{}_cross_section_at_{}.svg".format(filename, height)
plane = Plane(point_on_plane=np.array([0.0, height, 0.0]),
unit_normal=vg.basis.neg_y)
xs = render_longest_xsection_to_svg(mesh=mesh,
plane=plane,
filename=out or out_path)
reference_lines.append(xs)
if reference:
Scene().add_meshes(mesh).add_lines(*reference_lines).write(reference)
def source_mesh(self):
import lacecore
return lacecore.load_obj(self.mesh_path, triangulate=self.triangulate)