Ejemplo n.º 1
0
  public void testCropRectangle() throws Exception {
    final Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
    geoRasterSrc.save(tmpData + "1.tif");
    final int buffer = (int) (rasterEnvelope.getWidth() / 2.3);
    final Rectangle2D cropRectangle =
        new Rectangle2D.Double(
            rasterEnvelope.getMinX() + buffer,
            rasterEnvelope.getMinY() + buffer,
            rasterEnvelope.getWidth() - 2 * buffer,
            rasterEnvelope.getHeight() - 2 * buffer);
    geoRasterDst = geoRasterSrc.doOperation(new Crop(cropRectangle));
    geoRasterDst.save(tmpData + "2.tif");

    assertTrue(geoRasterDst.getWidth() > 0);
    assertTrue(geoRasterDst.getHeight() > 0);

    final ImagePlus srcImagePlus = geoRasterSrc.getImagePlus();
    final ImagePlus dstImagePlus = geoRasterDst.getImagePlus();
    RasterMetadata dstMetadata = geoRasterDst.getMetadata();
    RasterMetadata srcMetadata = geoRasterSrc.getMetadata();
    assertTrue(dstMetadata.getEnvelope().getMinX() < cropRectangle.getMinX());
    assertTrue(dstMetadata.getEnvelope().getMinY() < cropRectangle.getMinY());
    assertTrue(dstMetadata.getEnvelope().getMaxX() > cropRectangle.getMaxX());
    assertTrue(dstMetadata.getEnvelope().getMaxY() > cropRectangle.getMaxY());
    assertTrue(dstMetadata.getEnvelope().getWidth() < srcMetadata.getEnvelope().getWidth());
    checkCrop(geoRasterDst.getMetadata().getEnvelope(), srcImagePlus, dstImagePlus);
  }
Ejemplo n.º 2
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 private void check3x3(GeoRaster gr) throws Exception {
   final ImagePlus grapImagePlus = gr.getImagePlus();
   float previous = -1;
   for (int y = 0; y < gr.getHeight(); y++) {
     for (int x = 0; x < gr.getWidth(); x++) {
       assertTrue(grapImagePlus.getProcessor().getPixelValue(x, y) > previous);
       previous = grapImagePlus.getProcessor().getPixelValue(x, y);
     }
   }
 }
Ejemplo n.º 3
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  public void testCropAll() throws Exception {
    final Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
    final Rectangle2D cropRectangle =
        new Rectangle2D.Double(
            rasterEnvelope.getMinX(),
            rasterEnvelope.getMinY(),
            rasterEnvelope.getWidth(),
            rasterEnvelope.getHeight());
    geoRasterDst = geoRasterSrc.doOperation(new Crop(cropRectangle));

    assertTrue(geoRasterDst.getWidth() > 0);
    assertTrue(geoRasterDst.getHeight() > 0);

    RasterMetadata dstMetadata = geoRasterDst.getMetadata();
    RasterMetadata srcMetadata = geoRasterSrc.getMetadata();
    assertTrue(dstMetadata.equals(srcMetadata));
  }
Ejemplo n.º 4
0
  public void testCropPolygon() throws Exception {
    Envelope rasterEnvelope = geoRasterSrc.getMetadata().getEnvelope();
    final int bufferSize = (int) (rasterEnvelope.getWidth() / 2.3);
    rasterEnvelope =
        new Envelope(
            new Coordinate(
                rasterEnvelope.getMinX() + bufferSize, rasterEnvelope.getMinY() + bufferSize),
            new Coordinate(
                rasterEnvelope.getMaxX() - bufferSize, rasterEnvelope.getMaxY() - bufferSize));
    final LinearRing polygon = (LinearRing) EnvelopeUtil.toGeometry(rasterEnvelope);
    geoRasterSrc.save(tmpData + "1.tif");
    geoRasterDst = geoRasterSrc.doOperation(new Crop(polygon));
    geoRasterDst.save(tmpData + "2.png");

    assertTrue(geoRasterDst.getWidth() > 0);
    assertTrue(geoRasterDst.getHeight() > 0);

    final ImagePlus srcImagePlus = geoRasterSrc.getImagePlus();
    final ImagePlus dstImagePlus = geoRasterDst.getImagePlus();
    checkCrop(geoRasterDst.getMetadata().getEnvelope(), srcImagePlus, dstImagePlus);
  }