donner::Path::MeasuredPath Class Reference

Precomputed arc-length index for repeated path sampling. More...

#include "donner/base/Path.h"

Public Member Functions
double	pathLength () const
	Return the total measured arc length.
PointOnPath	pointAtArcLength (double distance) const
	Sample this measured path at the given arc length.
std::size_t	segmentCount () const
	Number of drawable segments retained by this index.
bool	valid () const
	Return true when measurement completed within its numeric and work limits.
std::size_t	measurementWorkUnits () const
	Number of command visits and recursive subdivisions used to build this index.
std::optional< std::size_t >	retainedBytes () const
	Exact object and vector-capacity bytes retained by this index, or nullopt on overflow.

Friends
class	Path

Detailed Description

Precomputed arc-length index for repeated path sampling.

Construction is linear in the number of path commands. Sampling uses a binary search over drawable segments, so text-on-path does not rescan the complete source path once per glyph.

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The documentation for this class was generated from the following file:

• donner/base/Path.h