| gvSIG desktop 1

package org.gvsig.raster.grid.roi;

import junit.framework.TestCase;

import org.gvsig.raster.buffer.RasterBufferInvalidException;

import org.gvsig.raster.dataset.IBuffer;

import org.gvsig.raster.grid.Grid;

import org.gvsig.raster.grid.GridException;

import org.gvsig.raster.grid.GridExtent;

import org.gvsig.raster.grid.OutOfGridException;

public class TestRasterROI extends TestCase {

	Grid grid = null;

	GridExtent extent = null;

	int cellSize = 1;

	double xMin = 0;

	double xMax = 10;

	double yMin = 0;

	double yMax = 10;

	RasterROI rasterROI = null;

	public void setUp() {

		int bands[] = {0};

		extent = new GridExtent();

		extent.setCellSize(cellSize);

		extent.setXRange(xMin, xMax);

		extent.setYRange(yMin, yMax);

		try {

			grid = new Grid(extent, extent, IBuffer.TYPE_DOUBLE, bands);

			for (int x = 0; x<5; x++)

				for (int y = 0; y<5; y++){

					grid.setCellValue(x, y, 0.0);

				}

			for (int x = 5; x<xMax; x++)

				for (int y = 0; y<5; y++){

					grid.setCellValue(x, y, 1.0);

				}

			for (int x = 0; x<5; x++)

				for (int y = 5; y<10; y++){

					grid.setCellValue(x, y, 2.0);

				}

			for (int x = 5; x<10; x++)

				for (int y = 5; y<10; y++){

					grid.setCellValue(x, y, 3.0);

				}

		} catch (RasterBufferInvalidException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (OutOfGridException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

	public void start() {

		this.setUp();

		this.testStack();

	}

	public void testStack() {

		rasterROI = new RasterROI(grid);

		rasterROI.addPoint(0,0);

		rasterROI.addPoint(0,1);

		rasterROI.addPoint(1,0);

		rasterROI.addPoint(1,1);

		try {

			assertEquals(0.0,rasterROI.getMaxValue(),0.0);

			assertEquals(0.0,rasterROI.getMeanValue(),0.0);

			assertEquals(0.0,rasterROI.getMinValue(),0.0);

		} catch (GridException e) {

			e.printStackTrace();

		}

		rasterROI.clear();

		rasterROI.addPoint(8,8);

		rasterROI.addPoint(9,8);

		rasterROI.addPoint(8,9);

		rasterROI.addPoint(9,9);

		try {

			assertEquals(3.0,rasterROI.getMaxValue(),0.0);

			assertEquals(3.0,rasterROI.getMeanValue(),0.0);

			assertEquals(3.0,rasterROI.getMinValue(),0.0);

		} catch (GridException e) {

			e.printStackTrace();

		}

		rasterROI.clear();

		rasterROI.addPoint(4,4);

		rasterROI.addPoint(5,4);

		rasterROI.addPoint(4,5);

		rasterROI.addPoint(5,5);

		try {

			assertEquals(3.0,rasterROI.getMaxValue(),0.0);

			assertEquals(1.5,rasterROI.getMeanValue(),0.0);

			assertEquals(0.0,rasterROI.getMinValue(),0.0);	

		} catch (GridException e) {

			e.printStackTrace();

		}

	}

}