docs: public void setDepths( int view , double featureDepths[] ) {
  		if( featureDepths.length < depths.numCols )
  			throw new IllegalArgumentException("Pixel count must be constant and match "+pixels.numCols);
  
  		int N = depths.numCols;
  		for (int i = 0; i < N; i++) {
  			depths.set(view,i, featureDepths[i]);
  		}
  	}