rhino3dm

library8.17.0pypypi✓ verified 82d ago

rhino3dm is a Python library based on OpenNURBS with a RhinoCommon style, providing 3D geometry operations and I/O for Rhino 3DM files. The current version is 8.17.0, released with active development. Release cadence is irregular, often aligned with Rhino updates.

devops

pip install rhino3dm

INSTALL

IMPORT

SIG · RHINO3DM

rhino3dm

devopspythonv8.17.0

harness data pending

Install & Compatibility

Where this runs

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Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

File3dm

✓ from rhino3dm import File3dm

✗ import rhino3dm model = rhino3dm.File3dm.read('model.3dm')

Read a 3DM file and print layer/object counts, then create a 3D point.

import rhino3dm model = rhino3dm.File3dm.read('model.3dm') print('Layers:', len(model.Layers)) print('Objects:', len(model.Objects)) # Create a point point = rhino3dm.Point3d(0, 0, 0) print('Point:', point)

Debug

Known issues

breakingIn version 8, many API names changed to align with RhinoCommon naming conventions. For example, `File3dm.Objects` now returns a list of `ModelComponent` objects, not direct geometry. Old code using `model.Objects[0].Geometry` may need updating.

fix

Access geometry via `model.Objects[0].Geometry`, which works for 3DM file objects.

affects: >=8.0

deprecated`File3dm.Read()` is deprecated in favor of `File3dm.read()`. The old method may still work but logs a deprecation warning.

fix

Use lowercase `read()` method.

affects: >=7.0

gotchaThe library does not support all Rhino geometry types; some complex objects like instance definitions may not import correctly. Always check for `None` after reading.

fix

Check `model.Objects[i].Geometry is not None` before using it.

affects: all

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Version history

8.17.0latest on PyPI · released Mar 12, 2025

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