bool ossimPointCloudImageHandler::setPointCloudHandler(ossimPointCloudHandler* pch)
{
close();
// Need to utilize the Point Cloud handler registry to open the PC file:
m_pch = pch;
if (!m_pch.valid())
return false;
getImageGeometry();
ossimImageHandler::completeOpen();
// Needed here after open to make sure that min/max pixels are set for active component/entry
setCurrentEntry((ossim_uint32)m_activeComponent);
return true;
}
void ossimSingleImageChain::addGeoPolyCutter()
{
if(!m_geoPolyCutter.valid())
{
m_geoPolyCutter = new ossimGeoPolyCutter();
//---
// ossimGeoPolyCutter requires a view geometry to transform the points.
// So set prior to adding to end of chain if valid. If not, user is
// responsible for setting.
//---
ossimRefPtr<ossimImageGeometry> geom = getImageGeometry();
if ( geom.valid() )
{
m_geoPolyCutter->setView( geom.get() );
}
addFirst( m_geoPolyCutter.get() );
}
}
ossimRefPtr<ossimImageData> ossimMrSidReader::getTile(
const ossimIrect& rect, ossim_uint32 resLevel)
{
LT_STATUS sts = LT_STS_Uninit;
// This tile source bypassed, or invalid res level, return null tile.
if(!isSourceEnabled() || !isOpen() || !isValidRLevel(resLevel))
{
return ossimRefPtr<ossimImageData>();
}
ossimIrect imageBound = getBoundingRect(resLevel);
if(!rect.intersects(imageBound))
{
return ossimRefPtr<ossimImageData>();
}
// Check for overview.
if( resLevel > theMinDwtLevels )
{
if(theOverview.valid())
{
ossimRefPtr<ossimImageData> tileData = theOverview->getTile(rect, resLevel);
tileData->setScalarType(getOutputScalarType());
return tileData;
}
}
theTile->setImageRectangle(rect);
// Compute clip rectangle with respect to the image bounds.
ossimIrect clipRect = rect.clipToRect(imageBound);
if (rect.completely_within(clipRect) == false)
{
// Not filling whole tile so blank it out first.
theTile->makeBlank();
}
lt_uint16 anOssimBandIndex = 0;
LTIPixel pixel(theReader->getColorSpace(), theNumberOfBands, theReader->getDataType());
LTISceneBuffer sceneBuffer(pixel, clipRect.width(), clipRect.height(), NULL);
if (!theGeometry.valid())
{
theGeometry = getImageGeometry();
}
double mag = theGeometry->decimationFactor(resLevel).lat;
sts = theImageNavigator->setSceneAsULWH(clipRect.ul().x,
clipRect.ul().y,
clipRect.lr().x - clipRect.ul().x + 1,
clipRect.lr().y - clipRect.ul().y + 1, mag);
LTIScene scene = theImageNavigator->getScene();
sts = theReader->read(scene, sceneBuffer);
if (LT_SUCCESS(sts) == true)
{
for(anOssimBandIndex = 0; anOssimBandIndex < theNumberOfBands; anOssimBandIndex++)
{
theTile->loadBand(sceneBuffer.getTotalBandData(anOssimBandIndex),
clipRect, anOssimBandIndex);
}
}
theTile->validate();
return theTile;
}
