svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / enhancement / LinearEnhancementDoubleFilter.java @ 10939
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1 | 10740 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | */
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19 | package org.gvsig.raster.grid.filter.enhancement; |
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20 | |||
21 | 10939 | nacho | import org.gvsig.raster.dataset.IBuffer; |
22 | 10740 | nacho | |
23 | |||
24 | public class LinearEnhancementDoubleFilter extends LinearEnhancementFilter { |
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25 | |||
26 | public void pre() { |
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27 | super.pre();
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28 | } |
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29 | |||
30 | public void process(int col, int line) { |
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31 | for (int iBand = 0; iBand < nbands; iBand ++) { |
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32 | double p = raster.getElemDouble(line, col, iBand);
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33 | if (p > maxBandValue[iBand])
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34 | p = (double)maxBandValue[iBand];
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35 | else if (p < minBandValue[iBand]) |
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36 | p = (double)minBandValue[iBand];
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37 | |||
38 | int value = (int)(((int) (( p * scale[iBand]) + offset[iBand])) & 0xff); |
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39 | rasterResult.setElem(line, col, iBand, (byte)value);
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40 | } |
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41 | } |
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42 | |||
43 | /*
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44 | * (non-Javadoc)
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45 | * @see org.gvsig.fmap.grid.filter.IRasterFilter#getInRasterDataType()
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46 | */
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47 | public int getInRasterDataType() { |
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48 | return IBuffer.TYPE_DOUBLE;
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49 | } |
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50 | |||
51 | /*
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52 | * (non-Javadoc)
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53 | * @see org.gvsig.fmap.grid.filter.IRasterFilter#post()
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54 | */
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55 | public void post() { |
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56 | } |
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57 | |||
58 | } |