trimesh.path.exchange.dxf¶
Functions:
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Polylines can have “vertex bulge,” which means the polyline has an arc tangent to segments, rather than meeting at a vertex. |
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Convert a chunk of entities into trimesh entities. |
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Export a 2D path object to a DXF file. |
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Given a loaded (n, 2) blob and a field name get a value by code. |
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Load DWG files by converting them to DXF files using TeighaFileConverter. |
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Load a DXF file to a dictionary containing vertices and entities. |
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trimesh.path.exchange.dxf.
bulge_to_arcs
(lines, bulge, bulge_idx, is_closed=False, metadata=None)¶ Polylines can have “vertex bulge,” which means the polyline has an arc tangent to segments, rather than meeting at a vertex.
From Autodesk reference: The bulge is the tangent of one fourth the included angle for an arc segment, made negative if the arc goes clockwise from the start point to the endpoint. A bulge of 0 indicates a straight segment, and a bulge of 1 is a semicircle.
- Parameters
lines ((n, 2) float) – Polyline vertices in order
bulge ((m,) float) – Vertex bulge value
bulge_idx ((m,) float) – Which index of lines is bulge associated with
is_closed (bool) – Is segment closed
metadata (None, or dict) – Entity metadata to add
- Returns
vertices ((a, 2) float) – New vertices for poly-arc
entities ((b,) entities.Entity) – New entities, either line or arc
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trimesh.path.exchange.dxf.
convert_entities
(blob, blob_raw=None, blocks=None, return_name=False)¶ Convert a chunk of entities into trimesh entities.
- Parameters
blob ((n, 2) str) – Blob of entities uppercased
blob_raw ((n, 2) str) – Blob of entities not uppercased
blocks (None or dict) – Blocks referenced by INSERT entities
return_name (bool) – If True return the first ‘2’ value
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trimesh.path.exchange.dxf.
export_dxf
(path, layers=None)¶ Export a 2D path object to a DXF file.
- Parameters
path (trimesh.path.path.Path2D) – Input geometry to export
layers (None, set or iterable) – If passed only export the layers specified
- Returns
export – Path formatted as a DXF file
- Return type
str
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trimesh.path.exchange.dxf.
get_key
(blob, field, code)¶ Given a loaded (n, 2) blob and a field name get a value by code.
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trimesh.path.exchange.dxf.
load_dwg
(file_obj, **kwargs)¶ Load DWG files by converting them to DXF files using TeighaFileConverter.
- Parameters
file_obj (file- like object) –
- Returns
loaded – kwargs for a Path2D constructor
- Return type
dict
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trimesh.path.exchange.dxf.
load_dxf
(file_obj, **kwargs)¶ Load a DXF file to a dictionary containing vertices and entities.
- Parameters
file_obj (file or file- like object (has object.read method)) –
- Returns
result
- Return type
dict, keys are entities, vertices and metadata