/**
* The top level rendering call. This function calls beforeResampleAll, resampleAll, and
* mapIntermediateToFinal, all virtual functions that are implemented in derived classes.
*
* @param iDS The number of slices to increment during the resampling phase. The value should be
* one or larger. If one, all slices of the volume data are resampled. If two, only every
* other slice is resampled. An input larger than one is used to allow fast rendering during
* rotation of the volume data. Once the rotation terminates, a composite with input of one
* should be called.
*/
public synchronized void composite(int iDS) {
long startTime = 0, now = 0;
double elapsedTime = 0d;
// compute maximum component of the box direction vector
float fMax = 0.0f;
int i, iMax = -1;
for (i = 0; i < 3; i++) {
float fAbs = Math.abs(m_aafBox[2][i]);
if (fAbs > fMax) {
fMax = fAbs;
iMax = i;
}
}
startTime = System.currentTimeMillis();
traceInit();
// composite in the appropriate direction
if (iMax == 0) {
beforeResampleAll(1, 2, 0);
} else if (iMax == 1) {
beforeResampleAll(2, 0, 1);
} else {
beforeResampleAll(0, 1, 2);
}
resampleAll(iDS);
mapIntermediateToFinal();
now = System.currentTimeMillis();
elapsedTime = (double) (now - startTime);
if (elapsedTime <= 0) {
elapsedTime = (double) 0.0;
}
Preferences.debug(
"Shear elapse time = " + (double) (elapsedTime / 1000.0) + "\n"); // in seconds
}
