Problems of VRML calling JAVA !!!!

Question

I have created a vrml file which will call a java class. I compiled the class with vrml package found in cosmoplayer 's folder. The class is complied successful, but when i run the vrml file, the cosmoplayer stated that the class can't be found ! But i have put them in the same directory. I tried many examples, all got same result. Hope someone can help me to solve this problem.
Also, i want to ask is that possible to embed the vrml file into an applet panel ?
Thank you for help !!

Answer 1

Hi Ravi,
Thks for helping me to embed vrml into a applet panel, i will try it later. Since i am not familiar with java3d now.
Also, i wonder that why my vrml file can't load the class, the error shown in cosmoplayer browser is can't find the changeColor.class. The program is very simple, just used java program to change color of the vrml objects and i am sure they are in same folder.
Here is my vrml code and java code:
changeColor.wrl:
#VRML V2.0 utf8
Viewpoint
     position 0 0 5
     orientation     0 0 1 0
     fieldOfView     0.8
Transform {
     rotation 0 0 1 1.571
     children [
          DEF     t1 TouchSensor {}
          Shape {
               appearance Appearance {
                    material DEF color1 Material {
                         diffuseColor 1 1 1}
                    geometry DEF cyShape Cylinder {
                         height 1
                         radius 0.5
Transform {
     rotation 0 0 1 1.571
     children [
          Transform {
               translation     0 -1 0
               children [
                    DEF     t2 TouchSensor {}
                    Shape {
                         appearance Appearance {
                              material DEF color2 Material {
                              diffuseColor 1 0 0}
                    geometry USE cyShape
DEF     changeColor Script {
     url     "changeColor.class"
     eventIn     SFBool get_t1
     eventIn     SFBool get_t2
     eventOut SFColor set_c1
     eventOut SFColor set_c2
ROUTE t1.isActive TO changeColor.get_t1
ROUTE changeColor.set_c1 TO     color1.diffuseColor
ROUTE t2.isActive TO changeColor.get_t2
ROUTE changeColor.set_c2 TO     color1.diffuseColor
changeColor.class:
import vrml.*;
import vrml.field.*;
import vrml.node.*;
public class changeColor extends Script {
private SFBool get_t1, get_t2;
private SFColor set_c1,set_c2;
public void initialize(){
     set_c1 = (SFColor)getEventOut("set_c1");
set_c2 = (SFColor)getEventOut("set_c2");
public void processEvent(Event e){
if (e.getName().equals("get_t1")==true){
set_c1.setValue (0f,1f,0f);
} else{
if (e.getName().equals("get_t2")==true){
set_c2.setValue (1f,0f,1f);
I really need help to solve this problem!
thks in advance
Jan