void TransPolygon::TransformWay(const Projection& projection,
bool optimize,
const std::vector<Point>& nodes)
{
if (nodes.empty())
{
length=0;
return;
}
length=nodes.size();
if (pointsSize<length)
{
delete [] points;
points=new TransPoint[length];
pointsSize=length;
}
if (optimize) {
InitializeDraw();
TransformGeoToPixel(projection,
nodes);
DropSimilarPoints();
DropRedundantPoints();
length=0;
start=nodes.size();
end=0;
// Calculate start & end
for (size_t i=0; i<nodes.size(); i++) {
if (points[i].draw) {
length++;
if (i<start) {
start=i;
}
end=i;
}
}
}
else {
start=0;
end=nodes.size()-1;
length=nodes.size();
for (size_t i=0; i<nodes.size(); i++) {
points[i].draw=true;
projection.GeoToPixel(nodes[i].lon,
nodes[i].lat,
points[i].x,
points[i].y);
}
}
}
void TransPolygon::TransformGeoToPixel(const Projection& projection,
const std::vector<Point>& nodes)
{
for (size_t i=0; i<length; i++) {
if (points[i].draw) {
projection.GeoToPixel(nodes[i].lon,nodes[i].lat,
points[i].x,points[i].y);
}
}
}
