Re: [JAVA3D] Picking CapabilityNotSetException

[Kevin Glass]

The reason you get GeomertryArray and Shape3D capability runtime exceptions is because the Box is built up of these elements.

You might try using the flag, Primitive.ENABLE_GEOMETRY_PICKING when you construct the Box primitive.

When you say a plane, I assume you've creatd a Quad or some other geometry array. You need to set the capabilities:

    GeometryArray.ALLOW_INTERSECT
    GeometryArray.ALLOW_FORMAT_READ
    GeometryArray.ALLOW_COUNT_READ
    GeometryArray.ALLOW_COORDINATE_READ
    (If you've used indexed array you need ALLOW_COORDINATE_INDEX_READ too)

Set on the geometry (QuadArray?) and

    Shape3D.ALLOW_GEOMETRY_READ

set on the shape 3D.

(This is all comes from the PickTool javadoc description)

Kev

Katja Loescher wrote:

[EMAIL PROTECTED]">

I looked up the capability bits for boxes in the java doc and added all of
them. But I still get those errors.
Why do I get a Shape3D and a GeometryArray error when I click on a Box?

Thanks!
Katja

I tried to do it with PickCanvas, but I always get a
CapabilityNotSetException: "GeometryArray: no capability to get vertex

count" when I click on the

plane and "Shape3D: no capability to get geometry" when I click on one

of the

boxes. Which capabilities are have to be set?

You need to set the capabilities, the objects (the Geometry array and the
shape3d have setCapability(int) methods (actully inherit it from
SceneGraphObject), the ones you need are GeometryArray.ALLOW_COUNT_READ
and
Shape3D.ALLOW_GEOMETRY_READ, it's all in the java doc for java3d

HTH

Jeremy

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