Grid_placement.LineSourceval into_origin_zero_ignoring_named :
t Geometry.Line.t ->
int ->
Grid.Origin_zero_placement.t Geometry.Line.tinto_origin_zero_ignoring_named line explicit_track_count converts both start and end placements to origin-zero coordinates, ignoring named lines.
Applies into_origin_zero_placement_ignoring_named to both the start and end placements.
val into_origin_zero :
t Geometry.Line.t ->
int ->
Grid.Origin_zero_placement.t Geometry.Line.tinto_origin_zero line explicit_track_count converts both start and end placements to origin-zero coordinates.
Applies into_origin_zero_placement to both the start and end placements.
Raises Failure if either placement is Named_line or Named_span. Named lines must be resolved before calling this function.
is_definite line returns true if the line placement is definite.
A line placement is definite if at least one of the start or end positions is a non-zero line index or a named line.