PathBoundaries.h

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/* -*- mode: c++ -*- */
#ifndef BOARD_PATH_BOUNDARIES_H
#define BOARD_PATH_BOUNDARIES_H
 
#include <vector>
#include "board/Point.h"
#include "board/Rect.h"
#include "board/Shape.h"
namespace LibBoard
{
 
struct Path;
 
namespace Tools
{
 
/*
 * An euclidean line a.x + b.y + c = 0
 */
struct EuclideanLine {
  EuclideanLine(double a, double b, double c) : a(a), b(b), c(c) {}
  EuclideanLine(Point p1, Point p2)
  {
    a = p1.y - p2.y;
    b = p2.x - p1.x;
    c = p1.x * (p2.y - p1.y) + p1.y * (p1.x - p2.x);
  }
  double a, b, c;
};
 
std::vector<Point> pathBoundaryPoints(const Path & path, double strokeWidth, LineCap lineCap, LineJoin lineJoin, double miterLimit = 4.0);
 
Rect pathBoundingBox(const Path & path, double strokeWidth, LineCap lineCap, LineJoin lineJoin, double miterLimit = 4.0);
 
} // namespace Tools
 
} // namespace LibBoard
 
#endif /* PATH_BOUNDARIES_H */