--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/front_processing/extern/TUIO_JAVA/src/TUIO/TuioPoint.java Fri Mar 09 14:52:11 2012 +0100
@@ -0,0 +1,266 @@
+/*
+ TUIO Java backend - part of the reacTIVision project
+ http://reactivision.sourceforge.net/
+
+ Copyright (c) 2005-2009 Martin Kaltenbrunner <mkalten@iua.upf.edu>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+*/
+
+package TUIO;
+
+/**
+ * The TuioPoint class on the one hand is a simple container and utility class to handle TUIO positions in general,
+ * on the other hand the TuioPoint is the base class for the TuioCursor and TuioObject classes.
+ *
+ * @author Martin Kaltenbrunner
+ * @version 1.4
+ */
+public class TuioPoint {
+
+ /**
+ * X coordinate, representated as a floating point value in a range of 0..1
+ */
+ protected float xpos;
+ /**
+ * Y coordinate, representated as a floating point value in a range of 0..1
+ */
+ protected float ypos;
+ /**
+ * The time stamp of the last update represented as TuioTime (time since session start)
+ */
+ protected TuioTime currentTime;
+ /**
+ * The creation time of this TuioPoint represented as TuioTime (time since session start)
+ */
+ protected TuioTime startTime;
+
+ /**
+ * The default constructor takes no arguments and sets
+ * its coordinate attributes to zero and its time stamp to the current session time.
+ */
+ public TuioPoint() {
+ xpos = 0.0f;
+ ypos = 0.0f;
+ currentTime = TuioTime.getSessionTime();
+ startTime = new TuioTime(currentTime);
+ }
+
+ /**
+ * This constructor takes two floating point coordinate arguments and sets
+ * its coordinate attributes to these values and its time stamp to the current session time.
+ *
+ * @param xp the X coordinate to assign
+ * @param yp the Y coordinate to assign
+ */
+ public TuioPoint(float xp, float yp) {
+ xpos = xp;
+ ypos = yp;
+ currentTime = TuioTime.getSessionTime();
+ startTime = new TuioTime(currentTime);
+ }
+
+ /**
+ * This constructor takes a TuioPoint argument and sets its coordinate attributes
+ * to the coordinates of the provided TuioPoint and its time stamp to the current session time.
+ *
+ * @param tpoint the TuioPoint to assign
+ */
+ public TuioPoint(TuioPoint tpoint) {
+ xpos = tpoint.getX();
+ ypos = tpoint.getY();
+ currentTime = TuioTime.getSessionTime();
+ startTime = new TuioTime(currentTime);
+ }
+
+ /**
+ * This constructor takes a TuioTime object and two floating point coordinate arguments and sets
+ * its coordinate attributes to these values and its time stamp to the provided TUIO time object.
+ *
+ * @param ttime the TuioTime to assign
+ * @param xp the X coordinate to assign
+ * @param yp the Y coordinate to assign
+ */
+ public TuioPoint(TuioTime ttime, float xp, float yp) {
+ xpos = xp;
+ ypos = yp;
+ currentTime = new TuioTime(ttime);
+ startTime = new TuioTime(currentTime);
+ }
+
+ /**
+ * Takes a TuioPoint argument and updates its coordinate attributes
+ * to the coordinates of the provided TuioPoint and leaves its time stamp unchanged.
+ *
+ * @param tpoint the TuioPoint to assign
+ */
+ public void update(TuioPoint tpoint) {
+ xpos = tpoint.getX();
+ ypos = tpoint.getY();
+ }
+
+ /**
+ * Takes two floating point coordinate arguments and updates its coordinate attributes
+ * to the coordinates of the provided TuioPoint and leaves its time stamp unchanged.
+ *
+ * @param xp the X coordinate to assign
+ * @param yp the Y coordinate to assign
+ */
+ public void update(float xp, float yp) {
+ xpos = xp;
+ ypos = yp;
+ }
+
+ /**
+ * Takes a TuioTime object and two floating point coordinate arguments and updates its coordinate attributes
+ * to the coordinates of the provided TuioPoint and its time stamp to the provided TUIO time object.
+ *
+ * @param ttime the TuioTime to assign
+ * @param xp the X coordinate to assign
+ * @param yp the Y coordinate to assign
+ */
+ public void update(TuioTime ttime, float xp, float yp) {
+ xpos = xp;
+ ypos = yp;
+ currentTime = new TuioTime(ttime);
+ }
+
+ /**
+ * Returns the X coordinate of this TuioPoint.
+ * @return the X coordinate of this TuioPoint
+ */
+ public float getX() {
+ return xpos;
+ }
+
+ /**
+ * Returns the Y coordinate of this TuioPoint.
+ * @return the Y coordinate of this TuioPoint
+ */
+ public float getY() {
+ return ypos;
+ }
+
+ /**
+ * Returns the distance to the provided coordinates
+ *
+ * @param xp the X coordinate of the distant point
+ * @param yp the Y coordinate of the distant point
+ * @return the distance to the provided coordinates
+ */
+ public float getDistance(float xp, float yp) {
+ float dx = xpos-xp;
+ float dy = ypos-yp;
+ return (float)Math.sqrt(dx*dx+dy*dy);
+ }
+
+ /**
+ * Returns the distance to the provided TuioPoint
+ *
+ * @param tpoint the distant TuioPoint
+ * @return the distance to the provided TuioPoint
+ */
+ public float getDistance(TuioPoint tpoint) {
+ return getDistance(tpoint.getX(),tpoint.getY());
+ }
+
+ /**
+ * Returns the angle to the provided coordinates
+ *
+ * @param xp the X coordinate of the distant point
+ * @param yp the Y coordinate of the distant point
+ * @return the angle to the provided coordinates
+ */
+ public float getAngle(float xp, float yp) {
+
+ float side = xpos-xp;
+ float height = ypos-yp;
+ float distance = getDistance(xp,yp);
+
+ float angle = (float)(Math.asin(side/distance)+Math.PI/2);
+ if (height<0) angle = 2.0f*(float)Math.PI-angle;
+
+ return angle;
+ }
+
+ /**
+ * Returns the angle to the provided TuioPoint
+ *
+ * @param tpoint the distant TuioPoint
+ * @return the angle to the provided TuioPoint
+ */
+ public float getAngle(TuioPoint tpoint) {
+ return getAngle(tpoint.getX(),tpoint.getY());
+ }
+
+ /**
+ * Returns the angle in degrees to the provided coordinates
+ *
+ * @param xp the X coordinate of the distant point
+ * @param yp the Y coordinate of the distant point
+ * @return the angle in degrees to the provided TuioPoint
+ */
+ public float getAngleDegrees(float xp, float yp) {
+ return (getAngle(xp,yp)/(float)Math.PI)*180.0f;
+ }
+
+ /**
+ * Returns the angle in degrees to the provided TuioPoint
+ *
+ * @param tpoint the distant TuioPoint
+ * @return the angle in degrees to the provided TuioPoint
+ */
+ public float getAngleDegrees(TuioPoint tpoint) {
+ return (getAngle(tpoint)/(float)Math.PI)*180.0f;
+ }
+
+ /**
+ * Returns the X coordinate in pixels relative to the provided screen width.
+ *
+ * @param width the screen width
+ * @return the X coordinate of this TuioPoint in pixels relative to the provided screen width
+ */
+ public int getScreenX(int width) {
+ return (int)Math.round(xpos*width);
+ }
+
+ /**
+ * Returns the Y coordinate in pixels relative to the provided screen height.
+ *
+ * @param height the screen height
+ * @return the Y coordinate of this TuioPoint in pixels relative to the provided screen height
+ */
+ public int getScreenY(int height) {
+ return (int)Math.round(ypos*height);
+ }
+
+ /**
+ * Returns the time stamp of this TuioPoint as TuioTime.
+ *
+ * @return the time stamp of this TuioPoint as TuioTime
+ */
+ public TuioTime getTuioTime() {
+ return new TuioTime(currentTime);
+ }
+
+ /**
+ * Returns the start time of this TuioPoint as TuioTime.
+ *
+ * @return the start time of this TuioPoint as TuioTime
+ */
+ public TuioTime getStartTime() {
+ return new TuioTime(startTime);
+ }
+}