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Added CartizianLocator

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This commit is contained in:
Robert Osfield
2007-05-03 16:23:19 +00:00
parent 9a74282767
commit af5b6aa43e
3 changed files with 94 additions and 12 deletions
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59
src/osgTerrain/Locator.cpp
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@@ -80,25 +80,21 @@ bool Locator::computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::V
//
// EllipsoidLocator
//
EllipsoidLocator::EllipsoidLocator(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height):
_longitude(longitude),
_latitude(latitude),
_deltaLongitude(deltaLongitude),
_deltaLatitude(deltaLatitude),
_height(height)
EllipsoidLocator::EllipsoidLocator(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height, double heightScale)
{
setExtents(longitude, latitude, deltaLongitude, deltaLatitude, height, heightScale);
_em = new osg::EllipsoidModel;
}
void EllipsoidLocator::setExtents(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height)
void EllipsoidLocator::setExtents(double longitude, double latitude, double deltaLongitude, double deltaLatitude, double height, double heightScale)
{
_longitude = longitude;
_latitude = latitude;
_deltaLongitude = deltaLongitude;
_deltaLatitude = deltaLatitude;
_height = height;
_heightScale = heightScale;
}
bool EllipsoidLocator::orientationOpenGL() const
@@ -110,7 +106,7 @@ bool EllipsoidLocator::convertLocalToModel(const osg::Vec3d& local, osg::Vec3d&
{
double longitude = _longitude + local.x() * _deltaLongitude;
double latitude = _latitude + local.y() * _deltaLatitude;
double height = _height + local.z();
double height = _height + local.z() * _heightScale;
_em->convertLatLongHeightToXYZ(latitude, longitude, height,
world.x(), world.y(), world.z());
@@ -127,7 +123,50 @@ bool EllipsoidLocator::convertModelToLocal(const osg::Vec3d& world, osg::Vec3d&
local.x() = (longitude-_longitude)/_deltaLongitude;
local.y() = (latitude-_latitude)/_deltaLatitude;
local.z() = height-_height;
local.z() = (height-_height)/_heightScale;
return true;
}
//////////////////////////////////////////////////////////////////////////////
//
// CartizianLocator
//
CartizianLocator::CartizianLocator(double originX, double originY, double lengthX, double lengthY, double height, double heightScale)
{
setExtents(originX, originY, lengthY, lengthY, height, heightScale);
}
void CartizianLocator::setExtents(double originX, double originY, double lengthX, double lengthY, double height, double heightScale)
{
_originX = originX;
_originY = originY;
_lengthX = lengthX;
_lengthY = lengthY;
_height = height;
_heightScale = heightScale;
}
bool CartizianLocator::orientationOpenGL() const
{
return (_lengthX * _lengthY) >= 0.0;
}
bool CartizianLocator::convertLocalToModel(const osg::Vec3d& local, osg::Vec3d& world) const
{
world.x() = _originX + local.x() * _lengthX;
world.y() = _originY + local.y() * _lengthY;
world.z() = _height + local.z() * _heightScale;
return true;
}
bool CartizianLocator::convertModelToLocal(const osg::Vec3d& world, osg::Vec3d& local) const
{
local.x() = (world.x() - _originX)/_lengthX;
local.y() = (world.y() - _originY)/_lengthY;
local.z() = (world.z() - _height)/_heightScale;
return true;
}