Annotate Segments on Splines

Splines can be tagged with SplineSegment objects to represent segments along the spline. A SplineSegment is defined by a start and end position along the spline, and a value (e.g., a label or a measurement) associated with that segment.

Segments are designed to facilitate manual annotation along splines. For example, one can annotate protein-bound regions, conformational states, etc.

Manually Editing Segments

The most useful way to edit segments is through the spline 3D interactor widget. Added segments will be represented as yellow rings on the spline.

Low-level API

API: add_segment GUI: Splines > Segments > Add segment

This method adds a segment by specifying the start and end positions in nanometer along the selected spline.

API: delete_segments GUI: Splines > Segments > Delete segments

This method deletes segments specified by the indices on the selected spline.