FGFS-4.1/OpenSceneGraph
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Added resolutionSensitivityScale of 0.9 into the DataSet::createDestinationGraph()

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to prevent overly conservative subdivision of data.
This commit is contained in:
Robert Osfield
2004-11-08 19:56:22 +00:00
parent 91af37573a
commit 8c4ab92117
1 changed files with 8 additions and 4 deletions
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12
src/osgTerrain/DataSet.cpp
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@@ -3226,11 +3226,15 @@ DataSet::CompositeDestination* DataSet::createDestinationGraph(CompositeDestinat
unsigned int texture_numRows;
double texture_dx;
double texture_dy;
double resolutionSensitivityScale = 0.9;
if (tile->computeImageResolution(texture_numColumns,texture_numRows,texture_dx,texture_dy))
{
if (texture_dx>tile->_imagery_maxSourceResolutionX) needToDivideX = true;
if (texture_dy>tile->_imagery_maxSourceResolutionY) needToDivideY = true;
if (texture_dx*resolutionSensitivityScale>tile->_imagery_maxSourceResolutionX) needToDivideX = true;
if (texture_dy*resolutionSensitivityScale>tile->_imagery_maxSourceResolutionY) needToDivideY = true;
}
osg::notify(osg::NOTICE)<<"texture_dx="<<texture_dx<<"\t_imagery_maxSourceResolutionX="<<tile->_imagery_maxSourceResolutionX<<std::endl;
osg::notify(osg::NOTICE)<<"texture_dy="<<texture_dy<<"\t_imagery_maxSourceResolutionY="<<tile->_imagery_maxSourceResolutionY<<std::endl;
unsigned int dem_numColumns;
unsigned int dem_numRows;
@@ -3238,8 +3242,8 @@ DataSet::CompositeDestination* DataSet::createDestinationGraph(CompositeDestinat
double dem_dy;
if (tile->computeTerrainResolution(dem_numColumns,dem_numRows,dem_dx,dem_dy))
{
if (dem_dx>tile->_terrain_maxSourceResolutionX) needToDivideX = true;
if (dem_dy>tile->_terrain_maxSourceResolutionY) needToDivideY = true;
if (dem_dx*resolutionSensitivityScale>tile->_terrain_maxSourceResolutionX) needToDivideX = true;
if (dem_dy*resolutionSensitivityScale>tile->_terrain_maxSourceResolutionY) needToDivideY = true;
}
float xCenter = (extents.xMin()+extents.xMax())*0.5f;