pastk/organicmaps
1
Fork 0
forked from organicmaps/organicmaps
Code Pull requests Activity

[tracks] Simplify path before display list creation.

Browse source
This commit is contained in:
vng 2013-10-11 17:47:02 +03:00 • committed by Alex Zolotarev
parent dabbd775ca
commit ed41bd902a
1 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
map/track.cpp
View file

@ -6,6 +6,7 @@
#include "../graphics/display_list.hpp"
#include "../geometry/distance.hpp"
#include "../geometry/simplification.hpp"
#include "../base/timer.hpp"
#include "../base/logging.hpp"
@ -62,11 +63,18 @@ void Track::CreateDisplayList(graphics::Screen * dlScreen, MatrixT const & matri
graphics::Pen::Info info(m_color, m_width);
uint32_t resId = dlScreen->mapInfo(info);
/// @todo add simplification
vector<m2::PointD> pts(m_polyline.GetSize());
transform(m_polyline.Begin(), m_polyline.End(), pts.begin(), DoLeftProduct<MatrixT>(matrix));
typedef buffer_vector<m2::PointD, 32> PointContainerT;
size_t const count = m_polyline.GetSize();
dlScreen->drawPath(pts.data(), pts.size(), 0, resId, graphics::tracksDepth);
PointContainerT pts1(count);
transform(m_polyline.Begin(), m_polyline.End(), pts1.begin(), DoLeftProduct<MatrixT>(matrix));
PointContainerT pts2;
pts2.reserve(count);
SimplifyDP(pts1.begin(), pts1.end(), math::sqr(m_width),
m2::DistanceToLineSquare<m2::PointD>(), MakeBackInsertFunctor(pts2));
dlScreen->drawPath(pts2.data(), pts2.size(), 0, resId, graphics::tracksDepth);
dlScreen->setDisplayList(0);
dlScreen->endFrame();