Animate the rotation in slow motion

GoogleCodeExporter commented 9 years ago

Hello,

I am new in this, and want to know whether it is possible to have a motion in 
rotating the model.

I used the following code to rotate the model to the specific coordinates and 
working proper.
Here is the link : http://eworkdemo.com/development/ruchir/hotel-3d-model/

function changeRotationLeft()
{
    viewer.rotMatrix.identity();
    viewer.rotMatrix.rotateAboutXAxis(-90);
    viewer.rotMatrix.rotateAboutYAxis(180);
    viewer.update();
}

Now I want this with slow motion animation.

Please help me with some demo.

Original issue reported on code.google.com by ruchir.k...@gmail.com on 19 Feb 2015 at 9:08

GoogleCodeExporter commented 9 years ago

Hi, Ruchir:

If what you need is just a simple rotation animation, maybe the demo 
http://jsc3d.googlecode.com/svn/trunk/jsc3d/demos/earth.html provides a good 
example for how to achieve this. The key is to utilize a timer 
(setTimeout()/setinterval()) to produce continuous frames along the timeline.

Original comment by Humu2...@gmail.com on 20 Feb 2015 at 3:13

GoogleCodeExporter commented 9 years ago

function foo(){
    viewer.init();
    viewer.update();
    setInterval(rotateThatShit, 50);//function rotateThatShit() is called every 50 miliseconds
}
function rotateThatShit(){
    viewer.rotate(10, 2, 0);//rotates 10 degrees on X axis, 2 on Y axis and not on Z axis, everytime this function is called.
    viewer.update();
}

You can also set a specific rotation to start with in the first frame, as soon 
as the model is loaded.
viewer.setParameter('InitRotationX',    130);
viewer.setParameter('InitRotationY',    0);
viewer.setParameter('InitRotationZ',    60);
These are of course put next to the rest of the parameters.

Original comment by Tjardo.K...@gmail.com on 26 Feb 2015 at 6:47

lizhao21st / jsc3d

Animate the rotation in slow motion #146