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proj_transform test: also check that transform succeeded

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This commit is contained in:
Mickey Rose 2018-07-18 19:31:12 +02:00
parent 69c317cd1f
commit f1d07d6718
1 changed files with 42 additions and 31 deletions
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73
test/unit/projection/proj_transform.cpp
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@ -25,20 +25,23 @@ SECTION("Test bounding box transforms - 4326 to 3857")
double maxy = 75.0;
mapnik::box2d<double> bbox(minx, miny, maxx, maxy);
prj_trans.forward(bbox);
INFO(bbox.to_string());
CHECK(bbox.minx() == Approx(-5009377.085697311));
CHECK(bbox.miny() == Approx(7361866.1130511891));
CHECK(bbox.maxx() == Approx(-4452779.631730943));
CHECK(bbox.maxy() == Approx(12932243.1119920239));
prj_trans.backward(bbox);
CHECK(bbox.minx() == Approx(minx));
CHECK(bbox.miny() == Approx(miny));
CHECK(bbox.maxx() == Approx(maxx));
CHECK(bbox.maxy() == Approx(maxy));
CHECKED_IF(prj_trans.forward(bbox))
{
CHECK(bbox.minx() == Approx(-5009377.085697311));
CHECK(bbox.miny() == Approx(7361866.1130511891));
CHECK(bbox.maxx() == Approx(-4452779.631730943));
CHECK(bbox.maxy() == Approx(12932243.1119920239));
}
CHECKED_IF(prj_trans.backward(bbox))
{
CHECK(bbox.minx() == Approx(minx));
CHECK(bbox.miny() == Approx(miny));
CHECK(bbox.maxx() == Approx(maxx));
CHECK(bbox.maxy() == Approx(maxy));
}
}
@ -145,21 +148,25 @@ SECTION("Test proj antimeridian bbox")
{
mapnik::box2d<double> ext(274000, 3087000, 3327000, 7173000);
prj_trans_fwd.forward(ext, PROJ_ENVELOPE_POINTS);
CHECK(ext.minx() == Approx(better.minx()));
CHECK(ext.miny() == Approx(better.miny()));
CHECK(ext.maxx() == Approx(better.maxx()));
CHECK(ext.maxy() == Approx(better.maxy()));
CHECKED_IF(prj_trans_fwd.forward(ext, PROJ_ENVELOPE_POINTS))
{
CHECK(ext.minx() == Approx(better.minx()));
CHECK(ext.miny() == Approx(better.miny()));
CHECK(ext.maxx() == Approx(better.maxx()));
CHECK(ext.maxy() == Approx(better.maxy()));
}
}
{
// check the same logic works for .backward()
mapnik::box2d<double> ext(274000, 3087000, 3327000, 7173000);
prj_trans_rev.backward(ext, PROJ_ENVELOPE_POINTS);
CHECK(ext.minx() == Approx(better.minx()));
CHECK(ext.miny() == Approx(better.miny()));
CHECK(ext.maxx() == Approx(better.maxx()));
CHECK(ext.maxy() == Approx(better.maxy()));
CHECKED_IF(prj_trans_rev.backward(ext, PROJ_ENVELOPE_POINTS))
{
CHECK(ext.minx() == Approx(better.minx()));
CHECK(ext.miny() == Approx(better.miny()));
CHECK(ext.maxx() == Approx(better.maxx()));
CHECK(ext.maxy() == Approx(better.maxy()));
}
}
// reference values taken from proj4 command line tool:
@ -177,21 +184,25 @@ SECTION("Test proj antimeridian bbox")
{
// checks for not being snapped (ie. not antimeridian)
mapnik::box2d<double> ext(274000, 3087000, 276000, 7173000);
prj_trans_fwd.forward(ext, PROJ_ENVELOPE_POINTS);
CHECK(ext.minx() == Approx(normal.minx()));
CHECK(ext.miny() == Approx(normal.miny()));
CHECK(ext.maxx() == Approx(normal.maxx()));
CHECK(ext.maxy() == Approx(normal.maxy()));
CHECKED_IF(prj_trans_fwd.forward(ext, PROJ_ENVELOPE_POINTS))
{
CHECK(ext.minx() == Approx(normal.minx()));
CHECK(ext.miny() == Approx(normal.miny()));
CHECK(ext.maxx() == Approx(normal.maxx()));
CHECK(ext.maxy() == Approx(normal.maxy()));
}
}
{
// check the same logic works for .backward()
mapnik::box2d<double> ext(274000, 3087000, 276000, 7173000);
prj_trans_rev.backward(ext, PROJ_ENVELOPE_POINTS);
CHECK(ext.minx() == Approx(normal.minx()));
CHECK(ext.miny() == Approx(normal.miny()));
CHECK(ext.maxx() == Approx(normal.maxx()));
CHECK(ext.maxy() == Approx(normal.maxy()));
CHECKED_IF(prj_trans_rev.backward(ext, PROJ_ENVELOPE_POINTS))
{
CHECK(ext.minx() == Approx(normal.minx()));
CHECK(ext.miny() == Approx(normal.miny()));
CHECK(ext.maxx() == Approx(normal.maxx()));
CHECK(ext.maxy() == Approx(normal.maxy()));
}
}
}