Revision: 5903
http://sourceforge.net/p/jump-pilot/code/5903
Author: ma15569
Date: 2018-06-26 16:26:40 +0000 (Tue, 26 Jun 2018)
Log Message:
-----------
Add two methods to convert 2DArray double[][] to java.awt.image.Raster
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 09:21:20 UTC (rev 5902)
+++
core/trunk/src/org/openjump/core/rasterimage/sextante/rasterWrappers/GridRasterWrapper.java
2018-06-26 16:26:40 UTC (rev 5903)
@@ -1,14 +1,13 @@
package org.openjump.core.rasterimage.sextante.rasterWrappers;
-import java.awt.image.ComponentSampleModel;
-import java.awt.image.DataBuffer;
+import java.awt.Point;
+import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.awt.image.SampleModel;
+import java.awt.image.WritableRaster;
import org.openjump.core.rasterimage.sextante.OpenJUMPSextanteRasterLayer;
-import com.sun.media.jai.codecimpl.util.DataBufferDouble;
-
/**
* Wrapper to convert
* org.openjump.core.rasterimage.sextante.OpenJUMPSextanteRasterLayer to 2D
@@ -100,21 +99,41 @@
* Convert a 2DArray (Matrix) as double to java.awt.image.Raster
*
* @param 2D Array as double
- * @param width
- * @param height
- * @return
+ * @param SampleModel
+ * @return java.awt.image.Raster
*/
- public static Raster matrixToRaster(double[][] a, int width, int height) {
- final double raw[] = new double[width * height];
- for (int i = 0; i < a.length; i++) {
- System.arraycopy(a[i], 0, raw, i * width, width);
+ public static Raster matrixToRaster(double[][] matrix, SampleModel model) {
+ final int w = matrix.length;
+ final int h = matrix[0].length;
+ final WritableRaster raster = Raster.createWritableRaster(model,
+ 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]);
+ }
}
- final DataBuffer buffer = new DataBufferDouble(raw, raw.length);
- final SampleModel sampleModel = new ComponentSampleModel(
- DataBuffer.TYPE_DOUBLE, width, height, 1, width * 1,
- new int[] { 0 });
- final Raster raster = Raster.createRaster(sampleModel, buffer, null);
return raster;
}
+ /**
+ * Convert a java.awt.image.Raster to 2DArray (Matrix) as double
+ *
+ * @param matrix
+ * @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]);
+ }
+ }
+ return raster;
+ }
+
}
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