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attach proj_trans and tr at later stage (to work with vertex_converters interface).

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This commit is contained in:
Artem Pavlenko 2012-04-03 16:26:18 +01:00
parent cbcb8d6aad
commit 55ed40cbc2
1 changed files with 21 additions and 6 deletions
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27
include/mapnik/ctrans.hpp
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@ -77,10 +77,25 @@ struct MAPNIK_DECL coord_transform2
coord_transform2(Transform const& t,
Geometry & geom,
proj_transform const& prj_trans)
: t_(t),
: t_(&t),
geom_(geom),
prj_trans_(prj_trans) {}
prj_trans_(&prj_trans) {}
explicit coord_transform2(Geometry & geom)
: t_(0),
geom_(geom),
prj_trans_(0) {}
void set_proj_trans(proj_transform const& prj_trans)
{
prj_trans_ = &prj_trans;
}
void set_trans(Transform const& t)
{
t_ = &t;
}
unsigned vertex(double *x, double *y)
{
unsigned command = SEG_MOVETO;
@ -90,7 +105,7 @@ struct MAPNIK_DECL coord_transform2
while (!ok && command != SEG_END)
{
command = geom_.vertex(x, y);
ok = prj_trans_.backward(*x, *y, z);
ok = prj_trans_->backward(*x, *y, z);
if (!ok) {
skipped_points = true;
}
@ -99,7 +114,7 @@ struct MAPNIK_DECL coord_transform2
{
command = SEG_MOVETO;
}
t_.forward(x, y);
t_->forward(x, y);
return command;
}
@ -114,9 +129,9 @@ struct MAPNIK_DECL coord_transform2
}
private:
Transform const& t_;
Transform const* t_;
Geometry & geom_;
proj_transform const& prj_trans_;
proj_transform const* prj_trans_;
};