svn-gvsig-desktop / trunk / libraries / libRaster / src-test / org / gvsig / raster / grid / TGEmptyBufferForWrite.java @ 21615
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.grid; |
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import junit.framework.TestCase; |
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import org.gvsig.raster.RasterLibrary; |
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import org.gvsig.raster.buffer.RasterBufferInvalidAccessException; |
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import org.gvsig.raster.buffer.RasterBufferInvalidException; |
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import org.gvsig.raster.dataset.IBuffer; |
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/**
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* Este test prueba el acceso a datos a traves de un grid.
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*
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* 1-Crear? un buffer vacio para escritura con la extensi?n pasado por
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* par?metro. El extent completo ser? igual que el extent de la vista asignada
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* (SIN INTERPOLACI?N).
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* 2-Comprueba que se calcule bien el n?mero de pixels
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* 3-Asigna datos al grid
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* 4-Los recupera comprobando que est?n bien asignados
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*
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* 1-Crear? un buffer vacio para escritura con la extensi?n pasado por
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* par?metro. El extent completo ser? distinto que el extent de la vista
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* asignada (CON INTERPOLACI?N).
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* 2-Comprueba que se calcule bien el n?mero de pixels
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* 3-Asigna datos al grid
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* 4-Los recupera con distintos m?todos de interpolaci?n comprobando que est?n
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* bien asignados
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class TGEmptyBufferForWrite extends TestCase { |
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static {
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RasterLibrary.wakeUp(); |
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} |
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public void setUp() { |
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System.err.println("TGEmptyBufferForWrite running..."); |
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} |
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public void start() { |
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this.setUp();
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this.testStack();
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} |
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public void testStack() { |
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try {
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// SIN INTERPOLACI?N
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GridExtent layerExtent = new GridExtent(1000, 1000, 1500, 1500, 50); |
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Grid g = new Grid(layerExtent, layerExtent, IBuffer.TYPE_INT, new int[] { 0, 1, 2 }); |
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// Tama?o en pixels
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assertEquals(layerExtent.getNX(), 10);
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assertEquals(layerExtent.getNY(), 10);
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assertEquals(g.getNX(), 10);
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assertEquals(g.getNY(), 10);
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for (int i = 0; i < g.getNX(); i++) { |
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for (int j = 0; j < g.getNY(); j++) |
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g.setCellValue(j, i, (int) (j * i));
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} |
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// print(g);
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for (int i = 0; i < g.getNX(); i++) { |
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for (int j = 0; j < g.getNY(); j++) |
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assertEquals(g.getCellValueAsInt(j, i), (int) (j * i));
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} |
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// CON INTERPOLACI?N
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GridExtent windowExtent = new GridExtent(1125, 1125, 1375, 1375, 50); |
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layerExtent = new GridExtent(1000, 1000, 1500, 1500, 50); |
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g = new Grid(layerExtent, windowExtent, IBuffer.TYPE_INT, new int[] { 0, 1, 2 }); |
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// Tama?o en pixels
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assertEquals(layerExtent.getNX(), 10);
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assertEquals(layerExtent.getNY(), 10);
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assertEquals(g.getNX(), 5);
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assertEquals(g.getNY(), 5);
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for (int i = 0; i < g.getLayerNX(); i++) { |
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for (int j = 0; j < g.getLayerNY(); j++) |
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g.setCellValue(j, i, (int) (j * i));
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} |
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g.setInterpolationMethod(GridInterpolated.INTERPOLATION_BicubicSpline); |
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int[][] m1 = new int[][] { { 9, 12, 15, 18, 21 }, { 12, 16, 20, 24, 28 }, { 15, 20, 25, 30, 35 }, { 18, 24, 30, 36, 42 }, { 21, 28, 35, 42, 49 } }; |
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// print(g);
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compare(m1, g); |
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g.setInterpolationMethod(GridInterpolated.INTERPOLATION_NearestNeighbour); |
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// print(g);
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int[][] m2 = new int[][] { { 9, 12, 15, 18, 21 }, { 12, 16, 20, 24, 28 }, { 15, 20, 25, 30, 35 }, { 18, 24, 30, 36, 42 }, { 21, 28, 35, 42, 49 } }; |
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compare(m2, g); |
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g.setInterpolationMethod(GridInterpolated.INTERPOLATION_Bilinear); |
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// print(g);
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int[][] m3 = new int[][] { { 9, 12, 15, 18, 21 }, { 12, 16, 20, 24, 28 }, { 15, 20, 25, 30, 35 }, { 18, 24, 30, 36, 42 }, { 21, 28, 35, 42, 49 } }; |
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compare(m3, g); |
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g.setInterpolationMethod(GridInterpolated.INTERPOLATION_BSpline); |
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// print(g);
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int[][] m4 = new int[][] { { 9, 11, 14, 18, 21 }, { 12, 15, 19, 23, 27 }, { 14, 20, 24, 29, 35 }, { 18, 23, 30, 36, 41 }, { 21, 27, 35, 42, 49 } }; |
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compare(m4, g); |
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g.setInterpolationMethod(GridInterpolated.INTERPOLATION_InverseDistance); |
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// print(g);
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int[][] m5 = new int[][] { { 9, 12, 15, 18, 21 }, { 12, 16, 20, 24, 28 }, { 15, 20, 25, 30, 35 }, { 18, 24, 30, 36, 42 }, { 21, 28, 35, 42, 49 } }; |
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compare(m5, g); |
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} catch (RasterBufferInvalidException e1) {
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e1.printStackTrace(); |
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} catch (OutOfGridException e3) {
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e3.printStackTrace(); |
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} catch (RasterBufferInvalidAccessException e) {
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e.printStackTrace(); |
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} catch (GridException e) {
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e.printStackTrace(); |
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} |
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} |
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private void compare(int[][] m, Grid g) throws RasterBufferInvalidAccessException, GridException { |
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for (int line = 0; line < g.getNY(); line++) { |
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for (int col = 0; col < g.getNX(); col++) |
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assertEquals(g.getCellValueAsInt(col, line), m[line][col]); |
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} |
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} |
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/**
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* Imprime todos los pixels de la fuente de datos en RGB
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* @throws RasterBufferInvalidAccessException
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*/
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/*private void print(Grid g) throws RasterBufferInvalidAccessException {
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for(int line = 0; line < g.getNY(); line++){
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for(int col = 0; col < g.getNX(); col++)
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System.out.print(g.getCellValueAsInt(col, line) + " ");
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System.out.println();
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}
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System.out.println();
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}*/
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} |