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1 /*
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2 CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool
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3
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4 Copyright (C) 2011 Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/)
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5
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6 This program is free software: you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation, either version 3 of the License, or
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9 (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, see <http://www.gnu.org/licenses/>.
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18 */
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19
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20 #pragma once
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21
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22 #include <jni.h>
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23 #include <iostream>
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24 #include <H3DUtil/Vec3d.h>
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25 #include <math.h>
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26
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27 /* check for Java exception */
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28 void checkExceptions(JNIEnv *env, char* what);
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29
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30 /* exit the program printing a message on the sttandard error */
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31 void stopExecution(char* msg);
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32
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33 /* transforms the coordinates of aPoint from the screen space (the system used in the graphic diagram) *
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34 * to the haptic space which is used by the Falcon and goes from about -0.05 to 0.05 on each axis */
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35 H3DUtil::ArithmeticTypes::Vec3d & screenToHapticSpace(H3DUtil::ArithmeticTypes::Vec3d & aPoint, int w, int h);
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36
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37 /* does the inverse of screenToHapticSpace */
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38 H3DUtil::ArithmeticTypes::Vec3d & hapticToScreenSpace(H3DUtil::ArithmeticTypes::Vec3d & aPoint, int w, int h);
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39
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40 /* Calculates the distance between points on a plane whose normal is the Z-axis. This *
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41 * means that the z coordinate in not taken into account for the distance calculation */
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42 double pointsDistance(const H3DUtil::ArithmeticTypes::Vec3d & p, const H3DUtil::ArithmeticTypes::Vec3d & q);
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43
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44 /* find the midpoint of a segment foing from start to end. The z coordinate of start and end is not taken into account */
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45 H3DUtil::ArithmeticTypes::Vec3d midPoint(const H3DUtil::ArithmeticTypes::Vec3d & start, const H3DUtil::ArithmeticTypes::Vec3d & end);
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