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Modeling: Tessellation of two bodies

This example shows how to create two stacked bodies and return the tessellation as two merged bodies.

Perform required imports

Perform the required imports.

from pint import Quantity

from ansys.geometry.core import launch_modeler
from ansys.geometry.core.math import Point2D, Point3D, Plane
from ansys.geometry.core.misc import UNITS
from ansys.geometry.core.sketch import Sketch

Create design

Create the basic sketches to be tessellated and extrude the sketch in the required plane. For more information on creating a component and extruding a sketch in the design, see the Rectangular plate with multiple bodies example.

Here is a typical situation in which two bodies, with different sketch planes, merge each body into a single dataset. This effectively combines all the faces of each individual body into a single dataset without separating faces.

modeler = launch_modeler()

sketch_1 = Sketch()
box = sketch_1.box(
    Point2D([10, 10], unit=UNITS.m), width=Quantity(10, UNITS.m), height=Quantity(5, UNITS.m)
)
circle = sketch_1.circle(
    Point2D([0, 0], unit=UNITS.m), radius=Quantity(25, UNITS.m)
)

design = modeler.create_design("TessellationDesign")
comp = design.add_component("TessellationComponent")
body = comp.extrude_sketch("Body", sketch=sketch_1, distance=10 * UNITS.m)

# Create the second body in a plane with a different origin
sketch_2 = Sketch(Plane([0, 0, 10]))
box = sketch_2.box(Point2D(
    [10, 10], unit=UNITS.m), width=Quantity(10, UNITS.m), height=Quantity(5, UNITS.m)
)
circle = sketch_2.circle(
    Point2D([0, 10], unit=UNITS.m), radius=Quantity(25, UNITS.m)
)

body = comp.extrude_sketch("Body", sketch=sketch_2, distance=10 * UNITS.m)

/home/runner/work/pyansys-geometry/pyansys-geometry/.venv/lib/python3.13/site-packages/ansys/geometry/core/connection/launcher.py:364: UserWarning: Transport mode forced to 'insecure' when running in CI workflows.
  warnings.warn(
/home/runner/work/pyansys-geometry/pyansys-geometry/.venv/lib/python3.13/site-packages/ansys/tools/common/cyberchannel.py:183: UserWarning: Starting gRPC client without TLS on localhost:700. This is INSECURE. Consider using a secure connection.
  warn(f"Starting gRPC client without TLS on {target}. This is INSECURE. Consider using a secure connection.")

Tessellate component as two merged bodies

Tessellate the component and merge each body into a single dataset. This effectively combines all the faces of each individual body into a single dataset without separating faces.

dataset = comp.tessellate()
dataset

PolyData	Information
N Cells	976
N Points	996
N Strips	0
X Bounds	-2.500e+01, 2.500e+01
Y Bounds	-2.499e+01, 3.499e+01
Z Bounds	0.000e+00, 2.000e+01
N Arrays	0

Single body tessellation is possible. In that case, users can request the body-level tessellation method to tessellate the body and merge all the faces into a single dataset.

dataset = comp.bodies[0].tessellate()
dataset

Information	Blocks
MultiBlock Values N Blocks: 7 X Bounds: -2.500e+01, 2.500e+01 Y Bounds: -2.499e+01, 2.499e+01 Z Bounds: 0.000e+00, 1.000e+01	Index Name Type 0 Block-00 PolyData 1 Block-01 PolyData 2 Block-02 PolyData 3 Block-03 PolyData 4 Block-04 PolyData 5 Block-05 PolyData 6 Block-06 PolyData

Plot design

Plot the design.

design.plot()

Close the modeler

Close the modeler.

modeler.close()

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Download this example

Download this example as a Jupyter Notebook or as a Python script.