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# Copyright (c) 2022, Manfred Moitzi
# License: MIT License
import pathlib
import ezdxf
from ezdxf.addons import meshex
from ezdxf.render.forms import cylinder, sphere
CWD = pathlib.Path("~/Desktop/Outbox").expanduser()
if not CWD.exists():
CWD = pathlib.Path(".")
# ------------------------------------------------------------------------------
# This example shows how to export MeshBuilder instances as 3D file formats:
# STL, OBJ, PLY and IFC4
#
# docs: https://ezdxf.mozman.at/docs/addons/meshex.html
# ------------------------------------------------------------------------------
SIDES = 16
NAME = "sphere"
def make_mesh(sides: int):
if NAME == "sphere":
return sphere(count=sides, stacks=sides // 2)
return cylinder(count=sides)
def export_scad(filename):
with open(filename, "wt") as fp:
mesh = make_mesh(SIDES)
mesh.flip_normals()
fp.write(meshex.scad_dumps(mesh))
def export_stl_asc(filename):
with open(filename, "wt") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.stl_dumps(mesh))
def export_stl_bin(filename):
with open(filename, "wb") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.stl_dumpb(mesh))
def export_off(filename):
with open(filename, "wt") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.off_dumps(mesh))
def export_obj(filename):
with open(filename, "wt") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.obj_dumps(mesh))
def export_ply(filename):
with open(filename, "wb") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.ply_dumpb(mesh))
def export_ifc4(filename, kind):
with open(filename, "wt") as fp:
mesh = make_mesh(SIDES)
fp.write(meshex.ifc4_dumps(mesh, kind, color=(1.0, 0.1, 0.1)))
def export_ifc4ZIP(filename, kind):
mesh = make_mesh(SIDES)
meshex.export_ifcZIP(filename, mesh, kind, color=(1.0, 0.1, 0.1))
def export_ifc4_open_cylinder(filename, kind):
with open(filename, "wt") as fp:
mesh = cylinder(count=SIDES, caps=False)
fp.write(meshex.ifc4_dumps(mesh, kind, color=(0.1, 1.0, 0.1)))
def export_dxf(filename):
doc = ezdxf.new()
mesh = make_mesh(SIDES)
mesh.render_mesh(doc.modelspace())
doc.saveas(filename)
def main():
export_scad(CWD / f"{NAME}.scad")
export_stl_asc(CWD / f"{NAME}_asc.stl")
export_stl_bin(CWD / f"{NAME}_bin.stl")
export_off(CWD / f"{NAME}.off")
export_obj(CWD / f"{NAME}.obj")
export_ply(CWD / f"{NAME}.ply")
export_dxf(CWD / f"{NAME}.dxf")
export_ifc4(
CWD / f"{NAME}_polygon_face_set.ifc",
meshex.IfcEntityType.POLYGON_FACE_SET,
)
export_ifc4(
CWD / f"{NAME}_closed_shell.ifc", meshex.IfcEntityType.CLOSED_SHELL
)
export_ifc4ZIP(
CWD / f"{NAME}_closed_shell.ifcZIP", meshex.IfcEntityType.CLOSED_SHELL
)
export_ifc4_open_cylinder(
CWD / f"open_cylinder_open_shell.ifc", meshex.IfcEntityType.OPEN_SHELL
)
export_ifc4_open_cylinder(
CWD / f"open_cylinder_polygon_face_set.ifc", meshex.IfcEntityType.POLYGON_FACE_SET
)
if __name__ == "__main__":
main()
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