1180ebdc1f
We initially used Cairo for its bezier flattening algorithm. That algorithm turned out to be a bit too imprecise at the scales we're working at here (#17), so I ended up porting over some code from Antigrain Graphics. The only other thing we used Cairo for was debug output and coordinate transforms, so I just wrote the relevant vector math in a small header file, deleted all debug output code and thus eliminated the cairo dependency. This is a step towards Windows builds.
27 lines
984 B
C++
27 lines
984 B
C++
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#include "gerbolyze.hpp"
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namespace gerbolyze {
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class curve4_div {
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public:
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curve4_div(double distance_tolerance=0.1, double angle_tolerance=0.0, double cusp_limit=0.0)
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: m_cusp_limit(cusp_limit),
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m_distance_tolerance_square(0.25*distance_tolerance*distance_tolerance),
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m_angle_tolerance(angle_tolerance)
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{
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}
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void run(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4);
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const std::vector<d2p> &points() { return m_points; }
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private:
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void recursive_bezier(double x1, double y1, double x2, double y2,
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double x3, double y3, double x4, double y4,
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unsigned level);
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double m_cusp_limit;
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double m_distance_tolerance_square;
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double m_angle_tolerance;
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std::vector<d2p> m_points;
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};
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}
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