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Map rotation fix

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This commit is contained in:
scrawl 2015-05-26 18:10:31 +02:00
parent 3dcb167066
commit c4951d1e73
2 changed files with 11 additions and 7 deletions
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16
apps/openmw/mwrender/localmap.cpp
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@ -73,10 +73,10 @@ LocalMap::~LocalMap()
mRoot->removeChild(*it);
}
const osg::Vec2f LocalMap::rotatePoint(const osg::Vec2f& p, const osg::Vec2f& c, const float angle)
const osg::Vec2f LocalMap::rotatePoint(const osg::Vec2f& point, const osg::Vec2f& center, const float angle)
{
return osg::Vec2f( std::cos(angle) * (p.x() - c.x()) - std::sin(angle) * (p.y() - c.y()) + c.x(),
std::sin(angle) * (p.x() - c.x()) + std::cos(angle) * (p.y() - c.y()) + c.y());
return osg::Vec2f( std::cos(angle) * (point.x() - center.x()) - std::sin(angle) * (point.y() - center.y()) + center.x(),
std::sin(angle) * (point.x() - center.x()) + std::cos(angle) * (point.y() - center.y()) + center.y());
}
void LocalMap::clear()
@ -330,12 +330,16 @@ void LocalMap::requestInteriorMap(MWWorld::CellStore* cell)
mAngle = std::atan2(north.x(), north.y());
// Rotate the cell and merge the rotated corners to the bounding box
osg::Vec2f _center(bounds.center().x(), bounds.center().y());
osg::Vec2f origCenter(bounds.center().x(), bounds.center().y());
osg::Vec3f origCorners[8];
for (int i=0; i<8; ++i)
origCorners[i] = mBounds.corner(i);
for (int i=0; i<8; ++i)
{
osg::Vec3f corner = mBounds.corner(i);
osg::Vec3f corner = origCorners[i];
osg::Vec2f corner2d (corner.x(), corner.y());
corner2d = rotatePoint(corner2d, _center, mAngle);
corner2d = rotatePoint(corner2d, origCenter, mAngle);
mBounds.expandBy(osg::Vec3f(corner2d.x(), corner2d.y(), 0));
}

2
apps/openmw/mwrender/localmap.hpp
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@ -117,7 +117,7 @@ namespace MWRender
float mMapWorldSize;
float mAngle;
const osg::Vec2f rotatePoint(const osg::Vec2f& p, const osg::Vec2f& c, const float angle);
const osg::Vec2f rotatePoint(const osg::Vec2f& point, const osg::Vec2f& center, const float angle);
void requestExteriorMap(MWWorld::CellStore* cell);
void requestInteriorMap(MWWorld::CellStore* cell);