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use fast path for bbox reprojection (skipping extra point-sampling)

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This commit is contained in:
Dane Springmeyer 2014-08-20 14:47:27 -07:00
parent 22117c6c64
commit bb897e0144
1 changed files with 10 additions and 0 deletions
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10
src/proj_transform.cpp
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@ -269,6 +269,11 @@ bool proj_transform::backward(box2d<double>& env, int points) const
if (is_source_equal_dest_)
return true;
if (wgs84_to_merc_ || merc_to_wgs84_)
{
return backward(env);
}
std::vector<coord<double,2> > coords;
envelope_points(coords, env, points);
@ -294,6 +299,11 @@ bool proj_transform::forward(box2d<double>& env, int points) const
if (is_source_equal_dest_)
return true;
if (wgs84_to_merc_ || merc_to_wgs84_)
{
return forward(env);
}
std::vector<coord<double,2> > coords;
envelope_points(coords, env, points);