cpPolyline.h

// Polylines are just arrays of vertexes.
// They are looped if the first vertex is equal to the last.
// cpPolyline structs are intended to be passed by value and destroyed when you are done with them.
typedef struct cpPolyline {
  int count, capacity;
  cpVect *verts;
} cpPolyline;

void cpPolylineDestroy(cpPolyline line);

// Returns true if the first vertex is equal to the last.
cpBool cpPolylineIsLooped(cpPolyline line);

cpPolyline cpPolylineSimplifyCurves(cpPolyline line, cpFloat tol);

cpPolyline cpPolylineSimplifyVertexes(cpPolyline line, cpFloat tol);

// Generate a convex hull that contains a polyline. (looped or not)
cpPolyline cpPolylineToConvexHull(cpPolyline line);


typedef struct cpPolylineSet {
  int count, capacity;
  cpPolyline *lines;
} cpPolylineSet;

cpPolylineSet *cpPolylineSetAlloc(void);

cpPolylineSet *cpPolylineSetInit(cpPolylineSet *set);

cpPolylineSet *cpPolylineSetNew(void);

void cpPolylineSetDestroy(cpPolylineSet *set, cpBool freePolylines);

void cpPolylineSetFree(cpPolylineSet *set, cpBool freePolylines);

void cpPolylineSetCollectSegment(cpVect v0, cpVect v1, cpPolylineSet *lines);