svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.library / org.gvsig.symbology / org.gvsig.symbology.lib / org.gvsig.symbology.lib.api / src / main / java / org / gvsig / symbology / PathLength.java @ 43156
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1 | 43156 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 3
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | package org.gvsig.symbology; |
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25 | |||
26 | import java.awt.geom.Point2D; |
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27 | |||
28 | |||
29 | public interface PathLength { |
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30 | |||
31 | /**
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32 | * Returns the slope of the path at the specified length.
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33 | * @param length The length along the path
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34 | * @return the angle in radians, in the range [-{@link Math#PI},
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35 | * {@link Math#PI}].
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36 | */
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37 | float angleAtLength(float length); |
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38 | |||
39 | /**
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40 | * Returns the length of the path used by this PathLength object.
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41 | * @return The length of the path.
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42 | */
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43 | float lengthOfPath();
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44 | |||
45 | /**
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46 | * Returns the point that is at the given length along the path.
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47 | * @param length The length along the path
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48 | * @return The point at the given length
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49 | */
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50 | Point2D pointAtLength(float length); |
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51 | |||
52 | } |