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5cc6d97d9f
If they collapse, turn them into placeholder squares with the appropriate area so that there aren't visible coverage gaps.
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
#define VT_POINT 1
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#define VT_LINE 2
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#define VT_POLYGON 3
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#define VT_END 0
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#define VT_MOVETO 1
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#define VT_LINETO 2
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#define VT_CLOSEPATH 7
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#define VT_STRING 1
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#define VT_NUMBER 2
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#define VT_BOOLEAN 7
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struct draw {
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signed char op;
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long long x;
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long long y;
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int necessary;
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draw(int nop, long long nx, long long ny) {
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this->op = nop;
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this->x = nx;
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this->y = ny;
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}
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draw() {
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}
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};
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typedef std::vector<draw> drawvec;
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drawvec decode_geometry(FILE *meta, long long *geompos, int z, unsigned tx, unsigned ty, int detail, long long *bbox, unsigned initial_x, unsigned initial_y);
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void to_tile_scale(drawvec &geom, int z, int detail);
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drawvec remove_noop(drawvec geom, int type, int shift);
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drawvec clip_point(drawvec &geom, int z, int detail, long long buffer);
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drawvec clean_or_clip_poly(drawvec &geom, int z, int detail, int buffer, bool clip);
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drawvec simple_clip_poly(drawvec &geom, int z, int detail, int buffer);
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drawvec close_poly(drawvec &geom);
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drawvec reduce_tiny_poly(drawvec &geom, int z, int detail, bool *reduced, double *accum_area);
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drawvec clip_lines(drawvec &geom, int z, int detail, long long buffer);
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bool point_within_tile(long long x, long long y, int z, int detail, long long buffer);
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int quick_check(long long *bbox, int z, int detail, long long buffer);
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drawvec simplify_lines(drawvec &geom, int z, int detail, bool mark_tile_bounds);
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drawvec reorder_lines(drawvec &geom);
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drawvec fix_polygon(drawvec &geom);
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std::vector<drawvec> chop_polygon(std::vector<drawvec> &geoms);
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void check_polygon(drawvec &geom, drawvec &before);
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double get_area(drawvec &geom, size_t i, size_t j);
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