trimesh.constants module

Classes

ResolutionPath(**kwargs)	res.seg_frac: when discretizing curves, what percentage of the drawing
ToleranceMesh(**kwargs)	ToleranceMesh objects hold tolerance information about meshes.
TolerancePath(**kwargs)	TolerancePath objects contain tolerance information used in Path objects.

Functions

log_time(method)

A decorator for methods which will time the method and then emit a log.debug message with the method name and how long it took to execute.

class trimesh.constants.ResolutionPath(**kwargs)

Bases: object

res.seg_frac: when discretizing curves, what percentage of the drawing

scale should we aim to make a single segment

res.seg_angle: when discretizing curves, what angle should a section span res.max_sections: when discretizing splines, what is the maximum number

of segments per control point

res.min_sections: when discretizing splines, what is the minimum number

of segments per control point

res.export: format string to use when exporting floating point vertices

class trimesh.constants.ToleranceMesh(**kwargs)

Bases: object

ToleranceMesh objects hold tolerance information about meshes.

Parameters

• tol.zero (float) – Floating point numbers smaller than this are considered zero

• tol.merge (float) – When merging vertices, consider vertices closer than this to be the same vertex. Here we use the same value (1e-8) as SolidWorks uses, according to their documentation.

• tol.planar (float) – The maximum distance from a plane a point can be and still be considered to be on the plane

• tol.facet_threshold (float) – Threshold for two facets to be considered coplanar

• tol.strict (bool) – If True, run additional in- process checks (slower)

class trimesh.constants.TolerancePath(**kwargs)

Bases: object

TolerancePath objects contain tolerance information used in Path objects.

Parameters

• tol.zero (float) – Floating point numbers smaller than this are considered zero

• tol.merge (float) – When merging vertices, consider vertices closer than this to be the same vertex. Here we use the same value (1e-8) as SolidWorks uses, according to their documentation.

• tol.planar (float) – The maximum distance from a plane a point can be and still be considered to be on the plane

• tol.seg_frac (float) –

  When simplifying line segments what percentage of the drawing

  scale can a segment be and have a curve fitted

• tol.seg_angle (when simplifying line segments to arcs, what angle) – can a segment span to be acceptable.

• tol.aspect_frac (when simplifying line segments to closed arcs (circles)) – what percentage can the aspect ratio differfrom 1:1 before escaping the fit early

• tol.radius_frac (when simplifying line segments to arcs, what percentage) – of the fit radius can vertices deviate to be acceptable

• tol.radius_min (when simplifying line segments to arcs, what is the minimum) – radius multiplied by document scale for an acceptable fit

• tol.radius_max (when simplifying line segments to arcs, what is the maximum) – radius multiplied by document scale for an acceptable fit

• tol.tangent (when simplifying line segments to curves, what is the maximum) – angle the end sections can deviate from tangent that is acceptable.

trimesh.constants.log_time(method)

A decorator for methods which will time the method and then emit a log.debug message with the method name and how long it took to execute.