commit
ba0bdbd07e
1 changed files with 98 additions and 99 deletions
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@ -19,8 +19,7 @@
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id: ctrans.hpp 39 2005-04-10 20:39:53Z pavlenko $
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//$Id$
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#ifndef CTRANS_HPP
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#define CTRANS_HPP
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@ -32,9 +31,12 @@
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#include <mapnik/coord_array.hpp>
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#include <mapnik/proj_transform.hpp>
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namespace mapnik {
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namespace mapnik
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{
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typedef coord_array<coord2d> CoordinateArray;
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template <typename Transform, typename Geometry>
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struct MAPNIK_DECL coord_transform
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{
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@ -58,6 +60,7 @@ private:
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Geometry& geom_;
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};
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template <typename Transform, typename Geometry>
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struct MAPNIK_DECL coord_transform2
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{
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@ -73,18 +76,17 @@ struct MAPNIK_DECL coord_transform2
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unsigned vertex(double *x, double *y) const
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{
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unsigned command(SEG_MOVETO);
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unsigned command = SEG_MOVETO;
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bool ok = false;
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bool skipped_points = false;
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while (!ok)
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double z = 0;
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while (!ok && command != SEG_END)
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{
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command = geom_.vertex(x, y);
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double z=0;
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ok = prj_trans_.backward(*x, *y, z);
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if (!ok) {
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skipped_points = true;
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}
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ok = ok || (command == SEG_END);
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}
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if (skipped_points && (command == SEG_LINETO))
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{
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@ -94,15 +96,6 @@ struct MAPNIK_DECL coord_transform2
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return command;
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}
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/*unsigned vertex(double * x , double * y) const
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{
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unsigned command = geom_.vertex(x,y);
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double z=0;
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prj_trans_.backward(*x,*y,z);
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t_.forward(x,y);
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return command;
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}*/
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void rewind(unsigned pos)
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{
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geom_.rewind(pos);
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@ -156,6 +149,7 @@ private:
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int dy_;
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};
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class CoordTransform
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{
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private:
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@ -166,13 +160,15 @@ private:
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box2d<double> extent_;
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double offset_x_;
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double offset_y_;
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public:
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CoordTransform(int width, int height, const box2d<double>& extent,
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double offset_x = 0, double offset_y = 0)
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:width_(width),height_(height),extent_(extent),offset_x_(offset_x),offset_y_(offset_y)
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: width_(width), height_(height), extent_(extent),
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offset_x_(offset_x), offset_y_(offset_y)
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{
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sx_ = (double(width_))/extent_.width();
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sy_ = (double(height_))/extent_.height();
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sx_ = double(width_) / extent_.width();
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sy_ = double(height_) / extent_.height();
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}
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inline int width() const
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@ -219,7 +215,8 @@ public:
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return c;
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}
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inline box2d<double> forward(const box2d<double>& e,proj_transform const& prj_trans) const
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inline box2d<double> forward(const box2d<double>& e,
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proj_transform const& prj_trans) const
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{
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double x0 = e.minx();
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double y0 = e.miny();
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@ -244,7 +241,8 @@ public:
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return box2d<double>(x0, y0, x1, y1);
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}
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inline box2d<double> backward(const box2d<double>& e,proj_transform const& prj_trans) const
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inline box2d<double> backward(const box2d<double>& e,
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proj_transform const& prj_trans) const
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{
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double x0 = e.minx();
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double y0 = e.miny();
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@ -286,6 +284,7 @@ public:
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}
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return coords;
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}
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inline box2d<double> const& extent() const
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{
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return extent_;
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