diff -r 000000000000 -r 6fefd4afe506 front_processing/extern/TUIO_JAVA/src/TUIO/TuioPoint.java --- /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 + + 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); + } +}