Rotation about ANY axis

Hi all !!!
I am a novice to 3d programming but i have done some JAVA programming earlier.
The problem i am finding is that I do not know how to rotate any geometric object (say, a cylinder or a cone) about any arbitrary axis, say ax+by+c=0.
Can anybodyhelp me ???
Thanks in advance.
Ajay

I am pretty sure I know what you are talking about.
//Create the Object
//Create a transform group for your object
TransformGroup tg = new TransformGroup();
// Now you need to make a Transform3D to do the rotational work
Transform3D tr = new Transform3D();
//To rotate around any axis use setRotation and pass
// is a Quat4D (or f,i)
// Quat takes 4 arguments x,y,z,w use the x,y and z to
// create a vector to rotate around. i.e. (0,1,0,.4) would
// rotate arount the Y axis, (1,1,0, .4) would rotate
// around a line between x,y.
// The W in the Quat is the angle to rotate (in Radian 0-2Pi);
//So ...
tr.setRotation( new Quat4d(1,1,0,.4));
tg.setTransform(tr);
//Add your object to your transform group
tg.addChild(your_object);
//Add your TRansformGroup to the world
root.addChild(tg); //or whatever your BranchGroup is called
I hope that is what you wanted. And does what you need.

Similar Messages

Model rotation about multiple axis

Can anyone tell me how I can limit the rotation of a model to
a specific angle without using camera rotation?
I do know how to limit the rotation when the model has only
been rotated in one axis (simple maths comparison of either x, y,
or z depending on which axis I've rotated the model about).
But, how do you limit rotation when the model has already
been rotated about 1 or 2 of the other axes given that x, y, and z
keep changing their values and axisAngle doesn't always give
appropriate values?

Using parent/childs is one way to work around relative
rotation problems. Parent the model you are trying to limit
rotation on to a dummy model (or group). Keep the dummy at
rotation(0, 0, 0), and rotate the target model to its correct
orientation in your scene. Then monitor the dummy's rotation to
keep it within your limits.

Transform combination for rotation about arbitrary axis

I have read through many of the postings about rotations around axes other than ones going through the origin, and they list various solutions. I tried using the method where an object is translated to the origin, rotated, and then translated back to its original position.
When using this method, does each translation and rotation need to be in a separate TransformGroup, or can one TransformGroup use three Transform3D objects multiplied together to reach the same result?
Thanks for any additional info anyone can provide.

You can use only one TransformGroup with the combined transformation. However if you change something you have to recalculate the overal transformation again. Thus you have to store the translation and rotation values. If you use seperate TransformGroups Java3D is calculating the overal transformation for you. In this case: if the capability bits which allow changes to the Trasnformation are NOT set and the scene graph is compiled, then j3d will internally hold only the combined transformation, so you don't loose any performance.

Maximum distance across any axis (circumscription)?

I posted this in general "Illustrator", but I think it might be better suited here.
I'm looking for a way to constrain an object to a size across any axis. For example, a 3" x 4" rectangle has a maximum height (or width) of 4". But it will not fit inside a circle with a 4" diameter. If you rotate the rectangle 45°, it now has a width of 4.9498" and a height of 4.9497". This works fine when the diagonal is obviously the longest measurement.
But what about irregular shapes (the one I'm working with is the outline of a padlock)?
The center point moves depending on the rotation, and some paths have so many points, finding the two furthest from each other is almost impossible. Any good ideas for finding the longest edge-to-edge distance? I figure once I can do that, I can then scale by percentage to the size I'm looking to fit.
Thanks!

It's the classic geometric problem of finding the smallest bounding circle for a given set of points (or for an irregular polygon). There are algorithms for doing it, but they are not simple. However, even pursuing them for the purpose stated is most likely a fruitless endeavor, because of two problems, one geometrically exacerbating; the other aesthetic:
Remember, the purpose is to find a bounding circle to tightly enclose something drawn in Illustrator--basically, an icon in a tightly-fitting circle.
The goemetric complication is that most attempts at solving the smallest bounding circle assumes a scatter plot of points or corners of an irregular polygon. But in the context of an icon drawn in Illustrator, those methods overlook the fact that the extrema of the shape might just as likely be somewhere along curved Bezier segments as at actual anchorPoints. So a real geometric solution would have to include an algorithm for positioning points at those outlying curve edges. The padlock subject of the original post is just such a case-in-point. The largest diameter of the figure clearly happens to fall somewhere in the middle of curved segments at both ends.
But even if you expend the scripting energy to solve for all that, there still remains a practical consideration that defeats the whole purpose: Suitability of the resulting design. Again, the specific artwork shown is a case-in-point. You can easily approximate the smallest bounding circle for that padlock figure manually in Illustrator, without the need to resort to any scripting or other automation. But after doing so, you'll likely find the result visually unsatisfactory: the padlock will not appear to be centered in the circle. Thus, graphic discernment is going to come into play anyway, and a bounding circle other than the smallest is, more often than not, going to be the most desirable.
Again, boiling the problem down to the simplest figure--a circumscribed triangle--serves to prove that problem as well:
Geometry dictates that for any right triangle circumscribed by its smallest bounding circle, the hypoteneus will be a diameter of the circle. You can demonstrate that by:
1. Draw a circle.
2. Draw one diameter.
3. Select any other point on the circle.
4. Connect the added point to each end of the diameter, and the resulting three lines will always result in a right triangle.
The above exercise clearly results in the right triangle being circumscribed by its smallest bounding circle. But would you call that triangle "centered" in the circle? Certainly not. The right triangle, by necessity, occupies only one half of the circle.
Now move the corner point that forms the right angle a little outboard of the circle. What you are now viewing should clearly demonstrate the rule already explained: that the longest diameter of the original artwork (in this case, the former hypoteneus) cannot be the diameter of even an enclosing circle if any third point of the figure forms an accute angle with the diameter's two ends.
There is, of course, a single minimum bounding circle for this new triangle, but once you find it, you will still see that the triangle is not "centered" in the circle. It will be "better centered" than the former right triangle, but it will never become what anyone would call "visually centered" or "balanced" until you've move that third point around so as to form an equilateral triangle. In other words, among triangles, only an equilateral triangle will ever appear what we would call "centered" in its minimum bounding circle. That problem is even more likely in the far more variable possibilities of irregular polygons, let alone all the many shapes that can be drawn in Illustrator, including those with curved segments defining their extremes.
There is a very simple and practical method for achieving what RSDD wants without resorting to scripting or even simple math. It was explained to him in his first thread on this question in the Illustrator general discussion forum. But he offhandedly dismissed it on the grounds that "it can't be that simple."
JET

Rotating Sprite Center Axis

Hi,
I found an interesting tutorial (link) and created a working model, adapting it as needed.
So far, when I center the container sprite and rotate it, it appears to first rotate from a 0,0 registration point, instead of from its center. I've tried to changet he sprite's registration point, but so far this hasn't worked/helped. Nothing else has worked to fix this rotation problem.
I must be doing something wrong.
Here's the AS3 (to view, add to first frame of new FLA, 1024X768 stage, color black). Rotation segments below are commented as       //ROTATION.:
import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.events.Event;
    import flash.text.TextField;
    //import flash.geom.ColorTransform;
stop();
    //public class bejewelled extends Sprite {
        var gems_array:Array=new Array();
        var aGem:Sprite;
        var selectorBox:Sprite=new Sprite();
        var selectorRow:int=-10;
        var selectorColumn:int=-10;
        var red:uint = 0xFF0000;
        var green:uint = 0xFF00;
        var blue:uint = 0xFF;
        var yellow:uint = 0xFFFF00;
        var cyan:uint = 0xFFFF;
        var magenta:uint = 0xFF00FF;
        var white:uint = 0xFFFFFF;
        var colours_array:Array=new Array(red,green,blue,yellow,cyan,magenta,white);
        var clickPossible:Boolean=false;
        var score_txt:TextField=new TextField();
        var hint_txt:TextField=new TextField();
        var score:uint=0;
        var inaRow:uint=0;
        var match:Boolean = true;
        var gemSize:uint = 96;
        var format:TextFormat = new TextFormat();
        var rotate:Boolean=false;
        var container:Sprite = new Sprite(); // Create the container sprite
         //var newColorTransform:ColorTransform = exitBtn.transform.colorTransform;
        //newColorTransform.color = 0xff0000;
        //exitBtn.transform.colorTransform = newColorTransform;
        function bejewelled() {
            // Game initiation
            format.size = 40;
            format.font = 'Arial';
            // Create and style score text
            addChild(score_txt);
            score_txt.textColor=0xFFFFFF;
            score_txt.x=gemSize*9.6;
            score_txt.autoSize = TextFieldAutoSize.LEFT;
            score_txt.defaultTextFormat = format;
            // Create and style hint text
            addChild(hint_txt);
            hint_txt.textColor=0xFFFFFF;
            hint_txt.x=gemSize*9.6;
            hint_txt.y=gemSize;
            hint_txt.autoSize = TextFieldAutoSize.LEFT;
            hint_txt.defaultTextFormat = format;
            // Create Gems in rows and columns
            addChild(container); // Add the container to the display list (stage)
            for (var i:uint=0; i<8; i++) {
                gems_array[i]=new Array();
                for (var j:uint=0; j<8; j++) {
                    do {
                        gems_array[i][j]=Math.floor(Math.random()*7);
                        while (rowLineLength(i,j)>2 || columnLineLength(i,j)>2);
                    aGem=new Sprite();
                    aGem.graphics.beginFill(colours_array[gems_array[i][j]]);
                    aGem.graphics.drawCircle(gemSize/2,gemSize/2,gemSize/2.07);
                    aGem.graphics.endFill();
                    aGem.name=i+"_"+j;
                    aGem.x=j*gemSize;
                    aGem.y=i*gemSize;
                    container.addChild(aGem);
            //Center the container sprite
            container.width = container.width - 10;
            container.height = container.height - 10;
            container.x = (stage.stageWidth-container.width)/2;
            container.y = (stage.stageHeight-container.height)/2;
            // Create and style selector box
            container.addChild(selectorBox);
            selectorBox.graphics.lineStyle(2,red,1);
            selectorBox.graphics.drawRect(0,0,gemSize,gemSize);
            selectorBox.visible=false;
            // Listen for user input
            container.addEventListener(MouseEvent.CLICK,onClick);
            addEventListener(Event.ENTER_FRAME,everyFrame);
        // Every frame...
        function everyFrame(e:Event):void {
            //Assume that gems are not falling
            var gemsAreFalling:Boolean=false;
            // Check each gem for space below it
            for (var i:int=6; i>=0; i--) {
                for (var j:uint=0; j<8; j++) {
                    // If a spot contains a gem, and has an empty space below...
                    if (gems_array[i][j] != -1 && gems_array[i+1][j]==-1) {
                        // Set gems falling
                        gemsAreFalling=true;
                        gems_array[i+1][j]=gems_array[i][j];
                        gems_array[i][j]=-1;
                        trace("#");
                        trace(i+"_"+j);
                        container.getChildByName(i+"_"+j).y+=gemSize;
                        container.getChildByName(i+"_"+j).name=(i+1)+"_"+j;
                        break;
                // If a gem is falling
                if (gemsAreFalling) {
                    // don't allow any more to start falling
                    break;
            // If no gems are falling
            if (! gemsAreFalling) {
                // Assume no new gems are needed
                var needNewGem:Boolean=false;
                // but check all spaces...
                for (i=7; i>=0; i--) {
                    for (j=0; j<8; j++) {
                        // and if a spot is empty
                        if (gems_array[i][j]==-1) {
                            // now we know we need a new gem
                            needNewGem=true;
                            // pick a random color for the gem
                            gems_array[0][j]=Math.floor(Math.random()*7);
                            // create the gem
                            aGem=new Sprite();
                            aGem.graphics.beginFill(colours_array[gems_array[0][j]]);
                            aGem.graphics.drawCircle(gemSize/2,gemSize/2,gemSize/2.07);
                            aGem.graphics.endFill();
                            // ID it
                            aGem.name="0_"+j;
                            // position it
                            aGem.x=j*gemSize;
                            aGem.y=0;
                            // show it
                            container.addChild(aGem);
                            // stop creating new gems
                            break;
                    // if a new gem was created, stop checking
                    if (needNewGem) {
                        break;
                // If no new gems were needed...
                if (! needNewGem) {
                    // assume no more/new lines are on the board
                    var moreLinesAvailable:Boolean=false;
                    // check all gems
                    for (i=7; i>=0; i--) {
                        for (j=0; j<8; j++) {
                            // if a line is found
                            if (rowLineLength(i,j)>2 || columnLineLength(i,j)>2) {
                                // then we know more lines are available
                                moreLinesAvailable=true;
                                // creat a new array, set the gem type of the line, and where it is
                                var lineGems:Array=[i+"_"+j];
                                var gemType:uint=gems_array[i][j];
                                var linePosition:int;
                                // check t's a horizontal line...
                                if (rowLineLength(i,j)>2) {
                                    // if so, find our how long it is and put all the line's gems into the array
                                    linePosition=j;
                                    while (sameGemIsHere(gemType,i,linePosition-1)) {
                                        linePosition--;
                                        lineGems.push(i+"_"+linePosition);
                                    linePosition=j;
                                    while (sameGemIsHere(gemType,i,linePosition+1)) {
                                        linePosition++;
                                        lineGems.push(i+"_"+linePosition);
                                // check t's a vertical line...
                                if (columnLineLength(i,j)>2) {
                                    // if so, find our how long it is and put all the line's gems into the array
                                    linePosition=i;
                                    while (sameGemIsHere(gemType,linePosition-1,j)) {
                                        linePosition--;
                                        lineGems.push(linePosition+"_"+j);
                                    linePosition=i;
                                    while (sameGemIsHere(gemType,linePosition+1,j)) {
                                        linePosition++;
                                        lineGems.push(linePosition+"_"+j);
                                // for all gems in the line...
                                for (i=0; i<lineGems.length; i++) {
                                    // remove it from the program
                                    container.removeChild(container.getChildByName(lineGems[i]));
                                    // find where it was in the array
                                    var cd:Array=lineGems[i].split("_");
                                    // set it to an empty gem space
                                    gems_array[cd[0]][cd[1]]=-1;
                                    // set the new score
                                    score+=inaRow;
                                    // set the score setter up
                                    inaRow++;
                                // if a row was made, stop the loop
                                break;
                        // if a line was made, stop making more lines
                        if (moreLinesAvailable) {
                            break;
                    // if no more lines were available...
                    //ROTATION
                    if (! moreLinesAvailable) {
                        if(rotate){
                            container.rotation+=5;
                            if(container.rotation%90==0){
                                rotate=false;
                                container.rotation=0;
                                rotateClockwise(gems_array);
                                while(container.numChildren>0){
                                    container.removeChildAt(0);
                                for (i=0; i<8; i++) {
                                    for (j=0; j<8; j++) {
                                        aGem=new Sprite();
                                        aGem.graphics.beginFill(colours_array[gems_array[i][j]]);
                                        aGem.graphics.drawCircle(gemSize/2,gemSize/2,gemSize/2.07);
                                        aGem.graphics.endFill();
                                        aGem.name=i+"_"+j;
                                        aGem.x=j*gemSize;
                                        aGem.y=i*gemSize;
                                        container.addChild(aGem);
                                        container.addChild(selectorBox);
                                        selectorBox.graphics.lineStyle(2,red,1);
                                        selectorBox.graphics.drawRect(0,0,gemSize,gemSize);
                                        selectorBox.visible=false;
                        else{
                            // allow new moves to be made
                            clickPossible=true;
                            // remove score multiplier
                            inaRow=0;
            // display new score
            score_txt.text=score.toString();
        // When the user clicks
        function onClick(e:MouseEvent):void {
            // If a click is allowed
            if (clickPossible) {
                // If the click is within the game area...
                if (mouseX<container.x+gemSize*8 && mouseX>0 && mouseY<container.y+gemSize*8 && mouseY>0) {
                    // Find which row and column were clicked
                    var clickedRow:uint=Math.floor((mouseY-container.y)/gemSize);
                    //var clickedRow:uint=Math.floor(e.target.y/gemSize);
                    var clickedColumn:uint=Math.floor((mouseX-container.x)/gemSize);
                    //var clickedColumn:uint=Math.floor(e.target.x/gemSize);
                    // Check if the clicked gem is adjacent to the selector
                    // If not...
                    if (!(((clickedRow==selectorRow+1 || clickedRow==selectorRow-1)&&clickedColumn==selectorColumn)||((clickedColumn==selectorColumn+1 || clickedColumn==selectorColumn-1) && clickedRow==selectorRow))) {
                        // Find row and colum the selector should move to
                        selectorRow=clickedRow;
                        selectorColumn=clickedColumn;
                        // Move it to the chosen position
                        selectorBox.x=gemSize*selectorColumn;
                        selectorBox.y=gemSize*selectorRow;
                        // If hidden, show it.
                        selectorBox.visible=true;
                    // If it is not next to it...
                    else {
                        // Swap the gems;
                        swapGems(selectorRow,selectorColumn,clickedRow,clickedColumn);
                        // If they make a line...
                        if (rowLineLength(selectorRow,selectorColumn)>2 || columnLineLength(selectorRow,selectorColumn)>2||rowLineLength(clickedRow,clickedColumn)>2 || columnLineLength(clickedRow,clickedColumn)>2) {
                            // remove the hint text
                            hint_txt.text="";
                            // dis-allow a new move until cascade has ended (removes glitches)
                            clickPossible=false;
                            // move and rename the gems
                            container.getChildByName(selectorRow+"_"+selectorColumn).x=e.target.x;//clickedColumn*gemSize;
                            container.getChildByName(selectorRow+"_"+selectorColumn).y=e.target.y;//clickedRow*gemSize;
                            container.getChildByName(selectorRow+"_"+selectorColumn).name="t";
                            container.getChildByName(clickedRow+"_"+clickedColumn).x=selectorColumn*gemSize;
                            container.getChildByName(clickedRow+"_"+clickedColumn).y=selectorRow*gemSize;
                            container.getChildByName(clickedRow+"_"+clickedColumn).name=selectorRow+"_"+selectorColumn;
                            container.getChildByName("t").name=clickedRow+"_"+clickedColumn;
                            match = true;
                            rotate = true;
                        // If not...
                        else {
                            // Switch them back
                            swapGems(selectorRow,selectorColumn,clickedRow,clickedColumn);
                            match = false;
                        if (match) {
                            // Move the selector position to default
                            selectorRow=-10;
                            selectorColumn=-10;
                            // and hide it
                            selectorBox.visible=false;
                        else {
                            // Set the selector position
                            selectorRow=clickedRow;
                            selectorColumn=clickedColumn;
                            // Move the box into position
                            selectorBox.x=gemSize*selectorColumn;
                            selectorBox.y=gemSize*selectorRow;
                            match = false;
                            // If hidden, show it.
                            selectorBox.visible=true;
                // If the click is outside the game area
                else {
                    // For gems in all rows...
                    for (var i:uint=0; i<8; i++) {
                        // and columns...
                        for (var j:uint=0; j<8; j++) {
                            // if they're not too close to the side...
                            if (i<7) {
                                // swap them horizontally
                                swapGems(i,j,i+1,j);
                                // check if they form a line
                                if ((rowLineLength(i,j)>2||columnLineLength(i,j)>2||rowLineLength(i+1,j)>2||columnLineLength(i+1,j)>2)) {
                                    // if so, name the move made
                                    selectorBox.x = j*gemSize;
                                    selectorBox.y = i*gemSize;
                                    selectorBox.visible = true;
                                    hint_txt.text = (i+1).toString()+","+(j+1).toString()+"->"+(i+2).toString()+","+(j+1).toString();
                                // swap the gems back
                                swapGems(i,j,i+1,j);
                            // then if they're not to close to the bottom...
                            if (j<7) {
                                // swap it vertically
                                swapGems(i,j,i,j+1);
                                // check if it forms a line
                                if ((rowLineLength(i,j)>2||columnLineLength(i,j)>2||rowLineLength(i,j+1)>2||columnLineLength(i,j+1)>2) ) {
                                    // if so, name it
                                    selectorBox.x = j*gemSize;
                                    selectorBox.y = i*gemSize;
                                    selectorBox.visible = true;
                                    hint_txt.text = (i+1).toString()+","+(j+1).toString()+"->"+(i+1).toString()+","+(j+2).toString();
                                // swap the gems back
                                swapGems(i,j,i,j+1);
        //Swap given gems
        function swapGems(fromRow:uint,fromColumn:uint,toRow:uint,toColumn:uint):void {
            //Save the original position
            var originalPosition:uint=gems_array[fromRow][fromColumn];
            //Move original gem to new position
            gems_array[fromRow][fromColumn]=gems_array[toRow][toColumn];
            //move second gem to saved, original gem's position
            gems_array[toRow][toColumn]=originalPosition;
        //Find out if there us a horizontal line
        function rowLineLength(row:uint,column:uint):uint {
            var gemType:uint=gems_array[row][column];
            var lineLength:uint=1;
            var checkColumn:int=column;
            //check how far left it extends
            while (sameGemIsHere(gemType,row,checkColumn-1)) {
                checkColumn--;
                lineLength++;
            checkColumn=column;
            //check how far right it extends
            while (sameGemIsHere(gemType,row,checkColumn+1)) {
                checkColumn++;
                lineLength++;
            // return total line length
            return (lineLength);
        //Find out if there us a vertical line
        function columnLineLength(row:uint,column:uint):uint {
            var gemType:uint=gems_array[row][column];
            var lineLength:uint=1;
            var checkRow:int=row;
            //check how low it extends
            while (sameGemIsHere(gemType,checkRow-1,column)) {
                checkRow--;
                lineLength++;
            //check how high it extends
            checkRow=row;
            while (sameGemIsHere(gemType,checkRow+1,column)) {
                checkRow++;
                lineLength++;
            // return total line length
            return (lineLength);
        function sameGemIsHere(gemType:uint,row:int,column:int):Boolean {
            //Check there are gems in the chosen row
            if (gems_array[row]==null) {
                return false;
            //If there are, check if there is a gem in the chosen slot
            if (gems_array[row][column]==null) {
                return false;
            //If there is, check if it's the same as the chosen gem type
            return gemType==gems_array[row][column];
           //ROTATION
           function rotateClockwise(a:Array):void {
            var n:int=a.length;
            for (var i:int=0; i<n/2; i++) {
                for (var j:int=i; j<n-i-1; j++) {
                    var tmp:String=a[i][j];
                    a[i][j]=a[n-j-1][i];
                    a[n-j-1][i]=a[n-i-1][n-j-1];
                    a[n-i-1][n-j-1]=a[j][n-i-1];
                    a[j][n-i-1]=tmp;
bejewelled();
Any help appreciated.

OK, way too much code. By default, everything will rotate from top left. If you want to change that you need to change the positions of the content within the container, not the container itself.
For example if you do something like this:
var a:Sprite = new Sprite(); //container
addChild(a);
a.x = 100; a.y = 100;
var b:MovieClip = new car(); //clip from library
a.addChild(b);
addEventListener(Event.ENTER_FRAME, up);
function up(e:Event):void
          a.rotation += 1;
The car added to the container will rotate about it's top left point... because that's where the container rotates about. To fix, move the car so the containers top/left is at the car's center like so:
var a:Sprite = new Sprite();
addChild(a);
a.x = 100; a.y = 100;
var b:MovieClip = new car();
a.addChild(b);
b.x -= b.width / 2;
b.y -= b.height / 2;
addEventListener(Event.ENTER_FRAME, up);
function up(e:Event):void
          a.rotation += 1;
You'll notice all that changed is moving the car 1/2 it's width and height.
HTH

How InDesign comes to know about any changes on document, but not saved. As it shows * on the name of document when it is opened and any changes. And after saving * symbol is get removed from the name of document. How and where indesign@ handles this?

How InDesign comes to know about any changes on document, but not saved. As it shows * on the name of document when it is opened and any changes.
And after saving * symbol is get removed from the name of document. How and where indesign@ handles this?

Are you just asking because you want to know, or do you have a problem you need to solve? I don't know how to write a program, but I think what your are describing is not an unusual thing for a program to do. The * tells you that changes have been made since the last save, and the program reserves a portion of memory for undo functions. I suppose a coder could tell you how it works, but I don't think it would help an average user to know, but that's just my opinion.

I can get the signed to Hotmail but I can not read my mail. Sorry, there's a problem with Hotmail right now Hotmail wasn't able to complete this request. Microsoft may contact you about any issues you report.

about 10 days ago started having trouble with Hotmail. Could isgn in but keep getting the following message.
Sorry, there's a problem with Hotmail right now
Hotmail wasn't able to complete this request. Microsoft may contact you about any issues you report.
I can send mail and review my contacts but that is it.
I then tried getting in with Internet Explorer and it works fine. I do not like IE because I have problems with some websites.

Clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Tools > Options > Advanced > Network > Offline Storage (Cache): "Clear Now"
"Remove Cookies" from sites causing problems:
*Tools > Options > Privacy > Cookies: "Show Cookies"
Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode

Rotate about a specific point

I have a script that creates geologic map symbols, positions them, and rotates them into their proper orientation. However, I do not know how to rotate about a specific point (not the center of the group). The portion of script in question is:
if (dlg.symbol.bedding.value) {
var myLine = stGroup.pathItems.add();
myLine.stroked = true;
myLine.setEntirePath([[posx,posy],[posx+3,posy]]);
myLine.strokeWidth = .75;
var myLine = stGroup.pathItems.add();
myLine.setEntirePath([[posx,posy - 6.75],[posx,posy + 6.75]]);
myLine.stroked = true;
myLine.strokeWidth = .75;
stGroup.rotate(-azi);
and I wish to rotate around the point [posx, posy]. How do I accomplish this?

Thanks! That worked. For future reference, here's the modified section of script:
if (dlg.symbol.bedding.value) {
var myLine = stGroup.pathItems.add();
myLine.stroked = true;
myLine.setEntirePath([[posx,posy],[posx+3,posy]]);
myLine.strokeWidth = .75;
var myLine = stGroup.pathItems.add();
myLine.setEntirePath([[posx,posy - 6.75],[posx,posy + 6.75]]);
myLine.stroked = true;
myLine.strokeWidth = .75;
mapDoc.theOrigin = mapDoc.rulerOrigin;
mapDoc.rulerOrigin = [posx,posy];
stGroup.rotate(-azi, undefined,undefined,undefined,undefined,Transformation.DOCUMENTORIGIN);
mapDoc.rulerOrigin = mapDoc.theOrigin;
Another parameter in the rotate method to specify a rotation point would be nice. Still, this works just fine, so no complaints from me.

Rotation and Z axis tracking

Here's my test:
http://media.putfile.com/shaketrack
As you can see, X and Y tracking work fine.
However, how can I do rotation and Z axis tracking?

You need a two point track and you need to tell Shake to interpret the information as rotation, size, or both...
Patrick

Rotate to z axis

How to use Behavior to rotate to z axis?

You are so brief, this is the best I can tell you:
Use a Transform3D that you put into a TransformGroup node placed over the brach that has to be rotated, and make your behaviour create a new Transform3D o change the already existing one and then set whichever of both you choose, again in the TransformGroup. This basically descrives the general method to change a trasnformation, just make your behaviour do it on your own criteria (on key presses, mouse movement, time, etc.)
Anyway there are some predefined behaviours you could benefit from, check the tutorials.
Regards

Another Question...rotating on two axis

Hi again. Well I have yet another question...how do I set a translation to rotate on two axis? Like I know that I can do:
TransformGroup tg;
Transform3D t3d = new Transform3D();
t3d.setRotation(new AxisAngle4f(1f,0f,0f,(some angle)));
tg.setTransform(t3d);
for one axis (I just put the declarations in to show an example) but if I try to apply two set rotations or two Transform3D's it doesn't work...so how would I rotate on, say, both the x and the y axis? Thanks,
Compaq

in fact the best thing would be to get used to quaternions. I suppose some Java3D tutorials discribe it quite well.
If you really want to use rotation on axis you have two solutions :
create 2 Transform3D and apply the result
Transform3D t3dx = new Transform3D();
t3dx.setRotation(new AxisAngle4f(1f,0f,0f,(xangle)));
Transform3D t3dy = new Transform3D();
t3dy.setRotation(new AxisAngle4f(0f,1f,0f,(yangle)));
t3dx.mul(t3dy);
tg.setTransform(t3dx);
(hum, at least i suppose it would work ;)
or you can do that too :
Transform3D t3dx = new Transform3D();
t3d.setRotation(new AxisAngle4f(1f,yangle/xangle,0f,(xangle)));
tg.setTransform(t3d);
(in this case xangle must be != 0)
I'm not really sure it will work so please tell me if it works. I've tried to help you twice today so you can send me some bucks to the folowing address :
oh, ok mum i won't give our address on the internet ;)
c ya
GnG

Animate a cube to rotate around x axis!!!

Hi! I'm trying to animate a cube to rotate around x axis using RotationInterpolator object.
Can anyone kindly tell me how I can do that? I've seen the example at Sun's 3d tutorial but they use the default behavior which is rotating around y axis.
Thanks in advance.
--DM

lol
in fact the axis used in the RotationInterpolator is the one which is on the y axis in the local coordinates system obtained after the Transform3D is performed
for example:
- if you use only new Transform3D(), which does nothing, the axis will be y
- but if you use rotz(), this transform3D transforms the old x axis into the new y one, the old y axis into the new -x one and the old z axis into the new z one. Thus in the new local coordinates system obtained, the new y axis matches the old x axis, so this x axis is used for the interpolator
I don't know if I'm very clear, it's difficult to explain and I'm French ;)
see the java 3D API :
http://java.sun.com/products/java-media/3D/forDevelopers/J3D_1_3_API/j3dapi/javax/media/j3d/RotationInterpolator.html#RotationInterpolator(javax.media.j3d.Alpha, javax.media.j3d.TransformGroup, javax.media.j3d.Transform3D, float, float)

System table that stores info about any function module

Hi All,
I know that table TFDIR stores primary information about any function module.
Could anyone tell me where the code of that function module gets stored in?
Also.. If I want to write an ABAP code to read the function module code then what is the best possible solution?
I want to read a function module code if that contains specific string.
Can anyone help me with that?
Thanks in advace and any answer will be appreciated.
Regards
Jignesh
Edited by: Jignesh Patel on Jun 12, 2008 12:22 PM

Hi Jignseh,
The codes are not stored in any table, they are stored as cluster.
To read the code, you can use READ REPORT.
But there you must provide the Include Name
For Example , If you want to read the code of READ_TEXT,
READ REPORT 'LSTXDU01'.
You can get this include name inside include LSTXDUXX
Use "GET_INCLUDES" to get all include names
Edited by: Swastik Bharati on Jun 12, 2008 12:28 PM

How can i know about any users who log on sap last one month..all data and

Dear all,
how can i know about any users who log on sap last one month..all data and transaction code they used in a month.
Regards,
ASHUTOSH
9891595497

Dear Ashutosh,
I think your question is in the wrong forum. This is for SAP MDM related questions and answers. SAP MDM does not use Transaction codes. So you may not get much help here.
Please try posting your question in the ABAP forums and you may get the right resources to help you.
Thanks.
Siva K.

My iphoto 9.1 keeps crashing when I try to edit/rotate photos, any ideas?

my iphoto 9.1 keeps crashing when I try to edit/rotate photos, any ideas?
It will let me do 1 or 2 and then will show 2 photos at once overlayed and then crash...I look for updates and it says I have the most current version...
any help will be appreciated!
thank you, angela

First make a temporary, backup copy (if you don't already have a backup copy) of the library and try the following:
1 - delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your
User/Home()/Library/ Preferences folder.
2 - delete iPhoto's cache file, Cache.db, that is located in your
User/Home()/Library/Caches/com.apple.iPhoto folder.
Click to view full size
3 - launch iPhoto and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding down the Option key when launching iPhoto. You'll also have to reset the iPhoto's various preferences.
OT

Rotation about ANY axis

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