38 lines
1 KiB
C++
38 lines
1 KiB
C++
#include "catch.hpp"
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#include <mapnik/projection.hpp>
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#include <mapnik/proj_transform.hpp>
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#include <mapnik/box2d.hpp>
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TEST_CASE("projection transform")
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{
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SECTION("Test bounding box transforms - 4326 to 3857")
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{
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mapnik::projection proj_4326("+init=epsg:4326");
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mapnik::projection proj_3857("+init=epsg:3857");
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mapnik::proj_transform prj_trans(proj_4326, proj_3857);
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double minx = -45.0;
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double miny = 55.0;
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double maxx = -40.0;
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double maxy = 75.0;
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mapnik::box2d<double> bbox(minx, miny, maxx, maxy);
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prj_trans.forward(bbox);
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INFO(bbox.to_string());
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CHECK(bbox.minx() == Approx(-5009377.085697311));
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CHECK(bbox.miny() == Approx(7361866.1130511891));
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CHECK(bbox.maxx() == Approx(-4452779.631730943));
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CHECK(bbox.maxy() == Approx(12932243.1119920239));
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prj_trans.backward(bbox);
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CHECK(bbox.minx() == Approx(minx));
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CHECK(bbox.miny() == Approx(miny));
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CHECK(bbox.maxx() == Approx(maxx));
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CHECK(bbox.maxy() == Approx(maxy));
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} // END SECTION
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} // END TEST CASE
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