void ossimUsgsQuad::getQuadList(vector<ossimUsgsQuad>& result,
const ossimGrect& rect)
{
result.clear();
// QUAD_SIZE_IN_DEGREES;
ossimGpt point = rect.ul();
while(rect.pointWithin(point))
{
while(rect.pointWithin(point))
{
result.push_back(ossimUsgsQuad(point));
point.lond(point.lond()+QUAD_SIZE_IN_DEGREES);
}
point.lond(rect.ul().lond());
point.latd(point.latd()-QUAD_SIZE_IN_DEGREES);
}
}
ossim_uint32 ossimDtedElevationImageSource::computeIndex(
const ossimImageData& id,
const ossimGrect& idRect,
const ossimGpt& gpt,
const ossimDpt& postSpacing) const
{
if ( ! idRect.pointWithin(gpt) )
{
return OSSIM_INT_NAN;
}
ossim_uint32 line = static_cast<ossim_uint32>( (idRect.ul().lat - gpt.lat)
/ postSpacing.y );
ossim_uint32 samp = static_cast<ossim_uint32>( (gpt.lon - idRect.ul().lon)
/ postSpacing.x );
return ( (line * id.getWidth()) + samp );
}