Ejemplo n.º 1
0
 /**
  * Tests the "Multiply" operation.
  *
  * @throws IOException
  */
 @Test
 public void testMultiply() throws IOException {
   final GridCoverage2D shortCoverage = EXAMPLES.get(5);
   final GridCoverage2D floatCoverage = EXAMPLES.get(4);
   final GridCoverage2D result = doOp("Multiply", shortCoverage, floatCoverage);
   final RenderedImage image = result.getRenderedImage();
   final RenderedImage extrema = ExtremaDescriptor.create(image, null, 1, 1, false, 1, null);
   double[][] minMax = (double[][]) extrema.getProperty("Extrema");
   assertEquals(minMax[0][0], 0.0, DELTA);
   assertEquals(minMax[1][0], 6.5272192E7, DELTA);
 }
Ejemplo n.º 2
0
  private void extremaOp(TiffMeta surface, GridCoverage2D gridCoverage2D) {
    double min = Double.MAX_VALUE;
    double max = Double.MIN_VALUE;

    RenderedImage img = gridCoverage2D.getRenderedImage();

    RenderedOp extremaOp = ExtremaDescriptor.create(img, null, 10, 10, false, 1, null);
    double[] allMins = (double[]) extremaOp.getProperty("minimum");
    min = Doubles.min(allMins);

    double[] allMaxs = (double[]) extremaOp.getProperty("maximum");
    max = Doubles.max(allMaxs);

    surface.setMaxVal(max);
    surface.setMinVal(min);
  }