Example in JAVA

brupbacher · Post by **brupbacher** » Mon Jan 21, 2008 1:27 am

HI, Well I am experimenting with the API on Windows Systems, but may be you should try to aks these guy's

https://jinput.dev.java.net/

they wrote the api

Hope it helps

formatt · Post by **formatt** » Tue Jan 22, 2008 4:37 am

Hi.

Thanks. I'd already searched their forum but I'll try asking there. I thought I might find someone who had got this going on Mac/Java here though.

Thanks anyway.

estraven · Post by **estraven** » Fri May 09, 2008 12:37 am

Hi, for those interested in linux, i've find a way to make brupbacher code work on linux ubuntu, just some small modifications are making his code working both on linux and window.

Anyway many thank to you brupbacher, great work. I hope you don't mind that i modified it.

here is my code, very similar to brupbacher code :

Code: Select all

package org.egl.spaceControler;



import java.util.Timer;



import net.java.games.input.Component;

import net.java.games.input.Controller;

import net.java.games.input.ControllerEnvironment;



/**

 * Details for: SpaceNavigator, Stick, Unknown

 * Components: (8)

 * 0. Z Axis, z, relative, analog, 0.0

 * 1. Y Axis, y, relative, analog, 0.0

 * 2. X Axis, x, relative, analog, 0.0

 * 3. Z Rotation, rz, relative, analog, 0.0

 * 4. Y Rotation, ry, relative, analog, 0.0

 * 5. X Rotation, rx, relative, analog, 0.0

 * 6. Button 0, 0, absolute, digital, 0.0

 * 7. Button 1, 1, absolute, digital, 0.0

 * No Rumblers

 * No subcontrollers

 */



public class SpaceControlerConnexion {



	public static final int NUM_BUTTONS = 2;



	public static final int ZAXIS = 0;

	public static final int YAXIS = 1;

	public static final int XAXIS = 2;

	public static final int ZROTATION = 3;

	public static final int YROTATION = 4; // default value

	public static final int XROTATION = 5;

	public static final int BUTTON0 = 6;

	public static final int BUTTON1 = 7;





	private int xAxisIdx, yAxisIdx, zAxisIdx, rxAxisIdx, ryAxisIdx, rzAxisIdx;

	private int buttonsIdx[];



	private Controller controller;

	private Component[] comps;



	public SpaceControlerConnexion () throws Exception {



		ControllerEnvironment ce = ControllerEnvironment.getDefaultEnvironment();

		Controller[] cs = ce.getControllers();

		if (cs.length == 0) {

			System.out.println("No controller found");

			throw new Exception("No Controller");

		} else System.out.println("Num. controllers: " + cs.length);



		controller = findSpaceNavigator(cs);

		System.out.println("Space Navigator controller: " + controller.getName() + ", " + controller.getType());



		findCompIndices(controller);

	}





	private Controller findSpaceNavigator (Controller[] cs) throws Exception {

		Controller.Type type;

		int i = 0;

		while (i < cs.length) {

			type = cs[i].getType();



			System.out.println("Name : "+cs[i].getName());

			System.out.println("\tType : "+cs[i].getType());

			System.out.println("\tPort : "+cs[i].getPortNumber());

			if (cs[i].getName().contains("3Dconnexion")) break;



			i++;

		}



		if (i == cs.length) {

			System.out.println("No Space Navigator found");

			throw new Exception("No Space Controler available.");

		} else System.out.println("No Space Navigator index: " + i);



		return cs[i];

	}



	private void findCompIndices (Controller controller)

	/* Store the indices for the analog sticks axes

(x,y) and (z,rz), POV hat, and

button components of the controller.

	 */ {

		comps = controller.getComponents();

		if (comps.length == 0) {

			System.out.println("No Components found");

			System.exit(0);

		} else System.out.println("Num. Components: " + comps.length);



		showCompNames(comps);



//		get the indices for the axes of the analog sticks: (x,y) and (z,rz)

		xAxisIdx = findCompIndex(comps, Component.Identifier.Axis.X, "x",1);

		yAxisIdx = findCompIndex(comps, Component.Identifier.Axis.Y, "y",1);

		zAxisIdx = findCompIndex(comps, Component.Identifier.Axis.Z, "z",1);



		rxAxisIdx = findCompIndex(comps, Component.Identifier.Axis.RX, "rx",1);

		if (rxAxisIdx==-1)

			rxAxisIdx = findCompIndex(comps, Component.Identifier.Axis.SLIDER_VELOCITY, "slider-velocity",1);



		ryAxisIdx = findCompIndex(comps, Component.Identifier.Axis.RY, "ry",1);

		if (ryAxisIdx==-1)

			ryAxisIdx = findCompIndex(comps, Component.Identifier.Axis.SLIDER_VELOCITY, "slider-velocity",2);



		rzAxisIdx = findCompIndex(comps, Component.Identifier.Axis.RZ, "rz",1);

		if (rzAxisIdx==-1)

			rzAxisIdx = findCompIndex(comps, Component.Identifier.Axis.SLIDER_VELOCITY, "slider-velocity",3);



		findButtons(comps);

	}



	private void showCompNames (Component[] comps) {

		Component c;

		System.out.println("Components : ");

		for (int i = 0; i < comps.length; i++) {

			c = comps[i];

			System.out.println( "\t"+c.getName() + "  ID :" + c.getIdentifier().getName());

		}

	}

	private int findCompIndex (Component[] comps, Component.Identifier id, String nm, int index) {

		int counter = 1;

		Component c;

		for (int i = 0; i < comps.length; i++) {

			c = comps[i];

			if ((c.getIdentifier() == id))

				if ((counter==index)) {

					System.out.println("Found " + c.getName() + "; index: " + i);

					return i;

				}

				else

					counter ++;

		}



		System.out.println("No " + nm + " component found");

		return -1;

	}



	/**

	 * Search through comps[] for NUM_BUTTONS buttons, storing

	 * their indices in buttonsIdx[]. Ignore excessive buttons.

	 * If there aren't enough buttons, then fill the empty spots in

	 * buttonsIdx[] with -1's.

	 */

	private void findButtons (Component[] comps) {

		buttonsIdx = new int[NUM_BUTTONS];

		int numButtons = 0;

		Component c;



		for (int i = 0; i < comps.length; i++) {

			c = comps[i];

			if (isButton(c)) { // deal with a button

				if (numButtons == NUM_BUTTONS) // already enough buttons

					System.out.println("Found an extra button; index: " + i + ". Ignoring it");

				else {

					buttonsIdx[numButtons] = i; // store button index

					System.out.println("Found " + c.getName() + "; index: " + i);

					numButtons++;

				}

			}

		}



//		fill empty spots in buttonsIdx[] with -1's

		if (numButtons < NUM_BUTTONS) {

			System.out.println("Too few buttons (" + numButtons + "); expecting " + NUM_BUTTONS);

			while (numButtons < NUM_BUTTONS) {

				buttonsIdx[numButtons] = -1;

				numButtons++;

			}

		}

	} // end of findButtons()



	/**

	 * Return true if the component is a digital/absolute button, and

	 * its identifier name ends with "Button" (i.e. the

	 * identifier class is Component.Identifier.Button).

	 */

	private boolean isButton (Component c) {

		if (!c.isAnalog() && !c.isRelative()) { // digital and absolute

			String className = c.getIdentifier().getClass().getName();

//			System.out.println(c.getName() + " identifier: " + className);

			if (className.endsWith("Button")) return true;

		}

		return false;

	}



	/**

	 * Return all the buttons in a single array. Each button value is

	 * a boolean.

	 */

	public boolean[] getButtons () {

		boolean[] buttons = new boolean[NUM_BUTTONS];

		float value;

		for (int i = 0; i <NUM_BUTTONS> NUM_BUTTONS)) {

			System.out.println("Button position out of range (1-" + NUM_BUTTONS + "): " + pos);

			return false;

		}



		if (buttonsIdx[pos - 1] == -1) // no button found at that pos

			return false;



		float value = comps[buttonsIdx[pos - 1]].getPollData();

//		array range is 0-NUM_BUTTONS-1

		return ( (value == 0.0f) ? false : true);

	} // end of isButtonPressed()



	public void poll () {

		controller.poll();

	}





	/**

	 * X Translation

	 *

	 * @return float value between 1613 and -1613

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getTX () {

		return comps[xAxisIdx].getPollData();

	}



	/**

	 * Y Translation

	 *

	 * @return float value between 1613 and -1613

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getTY () {

		return comps[yAxisIdx].getPollData();

	}



	/**

	 * Z Translation

	 *

	 * @return float value between 1613 and -1613

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getTZ () {

		return comps[zAxisIdx].getPollData();

	}





	/**

	 * X Rotation

	 *

	 * @return float value between 1560 and -1560

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getRX () {

		return comps[rxAxisIdx].getPollData();

	}



	/**

	 * Y Rotation

	 *

	 * @return float value between 1560 and -1560

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getRY () {

		return comps[ryAxisIdx].getPollData();

	}



	/**

	 * Z Rotation

	 *

	 * @return float value between 1560 and -1560

	 * <p>

	 * Note: the returned value my not be very logic and correct, I just measured them during pooling

	 */

	public float getRZ () {

		return comps[rzAxisIdx].getPollData();

	}







}

This code was tested with a SpaceNavigator and a SpaceTraveler, one linux Ubuntu 6.10, 7.04, 7.10, 8.04, and on Windows Vista pro 32bit, and Windows XP pro 32bit

Note that on linux ubuntu, you have to be root to connect to the device, or at least do "sudo chmod 777 /dev/input/*" after you plugged in your SpaceNavigator.

Thanks again to brupbacher,

Estraven

brupbacher · Post by **brupbacher** » Fri Aug 22, 2008 8:44 am

I switched to mac and i am currently porting my spacemouse supported application to mac OS x

I have the same issues with detecting the spacemouse....

does HIDWrapper.jar say any thing to you?
I found this in some tutorial in the web, but can't find it...

cheers,
Oliver

flomotan · Post by **flomotan** » Mon Aug 25, 2008 10:52 am

Some developers have reported using JInput on the Mac with success. You might give that a try.

Nik777 · Post by **Nik777** » Wed Jan 07, 2009 1:10 am

In case it's still an issue, I have got the SpaceNavigator working with jinput on OSX.

I had to add 2 lines of code in a class in the jinput jar.

I can either post the patch, or post a modified binary, whichever people would like.

So as of this moment, I have the SpaceNav working with the same Java app under linux, Windows and OSX

Cheers!
Nik

progenius777 · Post by **progenius777** » Thu Jun 18, 2009 6:05 am

I am currently using JInput for some interfacing with the space navigator. My question is: Is there any way to make the components absolute instead of relative? Relative components are rather hard to work with as I don't know how to get max and min values. Any help would be appreciated.

3Dconnexion Forum

Example in JAVA

Mac OS API

i am trying too

SpaceNav, Java, and OSX

relative to absolute?