VRML - [X3D]Color shape at runtime with SAI

Author

[X3D]Color shape at runtime with SAI

Roberto

2006-12-06, 7:36 pm

Hi all.
I need to color a shape created dinamically using SAI APIs. I have a problem
at runtime because the shape remains white :-(
Anyone can help me , please?
Thank you very much

Follows a few statement of my code:

X3DScene mainScene = x3dBrowser.createScene(profile, null);

X3DNode shape = mainScene.createNode("Shape");
mainScene.addRootNode(shape);

SFNode shape_geometry = (SFNode) (shape.getField("geometry"));
SFNode shape_appearance = (SFNode) (shape.getField("appearance"));

X3DNode box = mainScene.createNode("Box");
shape_geometry.setValue(box);

X3DNode appearance = mainScene.createNode("Appearance");
shape_appearance.setValue(appearance);

X3DNode material = mainScene.createNode("Material");
shape_appearance.setValue(material);

SFColor diffuseColor = (SFColor)material.getField("diffuseColor");
float blue[]= {1,0,1};
diffuseColor.setValue(blue);

Rex Melton

2006-12-06, 7:36 pm

Roberto wrote:
> Hi all.
> I need to color a shape created dinamically using SAI APIs. I have a problem
> at runtime because the shape remains white :-(
> Anyone can help me , please?
> Thank you very much
>
> Follows a few statement of my code:
>
> X3DScene mainScene = x3dBrowser.createScene(profile, null);
>
> X3DNode shape = mainScene.createNode("Shape");
> mainScene.addRootNode(shape);
>
> SFNode shape_geometry = (SFNode) (shape.getField("geometry"));
> SFNode shape_appearance = (SFNode) (shape.getField("appearance"));
>
> X3DNode box = mainScene.createNode("Box");
> shape_geometry.setValue(box);
>
> X3DNode appearance = mainScene.createNode("Appearance");
> shape_appearance.setValue(appearance);
>
> X3DNode material = mainScene.createNode("Material");
> shape_appearance.setValue(material);
>
>
Your setting the appearance field of the Shape node with a Material
node. That's wrong.

You need to get the material field from the Appearance node - then set
the material field with the Material node you've created. e.g.

SFNode appearance_material = (SFNode)appearance.getField("material");
appearance_material.setValue( material );
> SFColor diffuseColor = (SFColor)material.getField("diffuseColor");
> float blue[]= {1,0,1};
> diffuseColor.setValue(blue);
>
>
>
>

--
____________________________________________________
Rex Melton
phone: (978) 687-0571
email: rex.melton@comcast.net

Roberto

2006-12-06, 7:36 pm

"Rex Melton" <NoSpam_rex.melton_NoSpam@comcast.net> ha scritto nel messaggio

> Your setting the appearance field of the Shape node with a Material node.
> That's wrong.

right! I made a mistake in pasting my code.
The correct code that doesn't work the same is:

X3DScene mainScene = x3dBrowser.createScene(profile, null);

X3DNode shape = mainScene.createNode("Shape");
X3DNode box = mainScene.createNode("Box");
X3DNode appearance = mainScene.createNode("Appearance");
X3DNode material = mainScene.createNode("Material");

mainScene.addRootNode(shape);

SFNode shape_geometry = (SFNode) (shape.getField("geometry"));
SFNode shape_appearance = (SFNode) (shape.getField("appearance"));
SFNode shape_material = (SFNode) (appearance.getField("material"));

shape_geometry.setValue(box);
shape_appearance.setValue(appearance);
shape_appearance.setValue(material);

SFColor diffuseColor = (SFColor)material.getField("diffuseColor");
float blue[]= {1,0,1};
diffuseColor.setValue(blue);

Roberto

2006-12-06, 7:37 pm

"Roberto" <gioeroby@NO_*SPAM*libero.it> ha scritto nel messaggio

SFColor diffuseColor = (SFColor)material.getField("diffuseColor");
float blue[]= {1,0,1};
diffuseColor.setValue(blue);
shape_appearance.setValue(appearance);
shape_material.setValue(material);

Ok! I solved the problem with the statements as above.
Thanks to Rex for his precious counsils :-)