47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#include "ruby.h"
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#include "quad_tile.h"
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static VALUE tile_for_point(VALUE self, VALUE lat, VALUE lon)
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{
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unsigned int x = lon2x(NUM2DBL(lon));
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unsigned int y = lat2y(NUM2DBL(lat));
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return UINT2NUM(xy2tile(x, y));
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}
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static VALUE tiles_for_area(VALUE self, VALUE minlat, VALUE minlon, VALUE maxlat, VALUE maxlon)
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{
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unsigned int minx = lon2x(NUM2DBL(minlon));
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unsigned int maxx = lon2x(NUM2DBL(maxlon));
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unsigned int miny = lat2y(NUM2DBL(minlat));
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unsigned int maxy = lat2y(NUM2DBL(maxlat));
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VALUE tiles = rb_ary_new();
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unsigned int x;
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unsigned int y;
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for (x = minx; x <= maxx; x++)
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{
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for (y = miny; y <= maxy; y++)
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{
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rb_ary_push(tiles, UINT2NUM(xy2tile(x, y)));
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}
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}
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return tiles;
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}
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static VALUE tile_for_xy(VALUE self, VALUE x, VALUE y)
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{
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return UINT2NUM(xy2tile(NUM2UINT(x), NUM2UINT(y)));
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}
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void Init_quad_tile_so(void)
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{
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VALUE m = rb_define_module("QuadTile");
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rb_define_module_function(m, "tile_for_point", tile_for_point, 2);
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rb_define_module_function(m, "tiles_for_area", tiles_for_area, 4);
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rb_define_module_function(m, "tile_for_xy", tile_for_xy, 2);
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return;
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}
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