Revision: 5904
http://sourceforge.net/p/jump-pilot/code/5904
Author: ma15569
Date: 2018-06-26 18:21:04 +0000 (Tue, 26 Jun 2018)
Log Message:
-----------
Add amethod to convert a java.awt.image.Raster to 2DArray (Matrix) as double
Modified Paths:
--------------
core/trunk/src/org/openjump/core/rasterimage/sextante/rasterWrappers/GridRasterWrapper.java
Modified:
core/trunk/src/org/openjump/core/rasterimage/sextante/rasterWrappers/GridRasterWrapper.java
===================================================================
---
core/trunk/src/org/openjump/core/rasterimage/sextante/rasterWrappers/GridRasterWrapper.java
2018-06-26 16:26:40 UTC (rev 5903)
+++
core/trunk/src/org/openjump/core/rasterimage/sextante/rasterWrappers/GridRasterWrapper.java
2018-06-26 18:21:04 UTC (rev 5904)
@@ -1,7 +1,6 @@
package org.openjump.core.rasterimage.sextante.rasterWrappers;
import java.awt.Point;
-import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.awt.image.SampleModel;
import java.awt.image.WritableRaster;
@@ -96,7 +95,7 @@
}
/**
- * Convert a 2DArray (Matrix) as double to java.awt.image.Raster
+ * Convert a 2DArray (Matrix) as double to java.awt.image.Raster, to band 0
*
* @param 2D Array as double
* @param SampleModel
@@ -103,6 +102,22 @@
* @return java.awt.image.Raster
*/
public static Raster matrixToRaster(double[][] matrix, SampleModel model) {
+
+ return matrixToRaster(matrix, model, 0);
+ }
+
+ /**
+ * Convert a 2DArray (Matrix) as double to java.awt.image.Raster, defining
+ * the band number
+ *
+ * @param 2D Array as double
+ * @param SampleModel
+ * @param band
+ * number
+ * @return java.awt.image.Raster
+ */
+ public static Raster matrixToRaster(double[][] matrix, SampleModel model,
+ int band) {
final int w = matrix.length;
final int h = matrix[0].length;
final WritableRaster raster = Raster.createWritableRaster(model,
@@ -109,7 +124,7 @@
new Point(0, 0));
for (int i = 0; i < w; i++) {
for (int j = 0; j < h; j++) {
- raster.setSample(i, j, 0, matrix[i][j]);
+ raster.setSample(i, j, band, matrix[i][j]);
}
}
return raster;
@@ -122,18 +137,20 @@
* @return 2DArray (Matrix) as double[][]
*/
- public static Raster matrixToRaster(double[][] matrix) {
- final int w = matrix.length;
- final int h = matrix[0].length;
- final BufferedImage image = new BufferedImage(w, h,
- BufferedImage.TYPE_USHORT_GRAY);
- final WritableRaster raster = (WritableRaster) image.getData();
- for (int i = 0; i < w; i++) {
- for (int j = 0; j < h; j++) {
- raster.setSample(i, j, 0, matrix[i][j]);
+ public static double[][] rasterToMatrix(Raster raster) {
+ try {
+ final int w = raster.getWidth(), h = raster.getHeight();
+ final double pixels[][] = new double[w][h];
+ for (int x = 0; x < w; x++) {
+ for (int y = 0; y < h; y++) {
+ pixels[x][y] = raster.getSampleDouble(x, y, 0);
+ }
}
+ return pixels;
+ } catch (final Exception e) {
+ e.printStackTrace();
}
- return raster;
+ return null;
}
}
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