Hi,
Thanks, I managed to get my Box displayed with the use of the rudimentary
geometry
classes, however I am really wondering if someone was able to generate a
Quad_Array Objects using GeometryInfo and get some Normals calculated.
Maybe I am just to stupid or there is a bug somewhere, this was not the
first time I had problems with QuadArray an GeometryInfo.
Thanks Desiree
>
> Hi,
> I tried to build a box with the GeometryInfo classes the following way:
>
> // Coordinates
> // needs to be counter clockwise
> Point3f[] coords = new Point3f[4*6];
> // front side
> coords[0]=new Point3f(eastValue-w,heightValue-c,northValue+l);
> coords[1]=new Point3f(eastValue+w,heightValue-c,northValue+l);
> coords[2]=new Point3f(eastValue+w,heightValue+c,northValue+l);
> coords[3]=new Point3f(eastValue-w,heightValue+c,northValue+l);
> // right side
> coords[4]=new Point3f(eastValue+w,heightValue-c,northValue+l);
> coords[5]=new Point3f(eastValue+w,heightValue-c,northValue-l);
> coords[6]=new Point3f(eastValue+w,heightValue+c,northValue-l);
> coords[7]=new Point3f(eastValue+w,heightValue+c,northValue+l);
> // top side
> coords[8]=new Point3f(eastValue-w,heightValue+c,northValue+l);
> coords[9]=new Point3f(eastValue+w,heightValue+c,northValue+l);
> coords[10]=new Point3f(eastValue+w,heightValue+c,northValue-l);
> coords[11]=new Point3f(eastValue-w,heightValue+c,northValue-l);
> // back side
> coords[12]=new Point3f(eastValue+w,heightValue-c,northValue-l);
> coords[13]=new Point3f(eastValue-w,heightValue-c,northValue-l);
> coords[14]=new Point3f(eastValue-w,heightValue+c,northValue-l);
> coords[15]=new Point3f(eastValue+w,heightValue+c,northValue-l);
> // left side
> coords[16]=new Point3f(eastValue-w,heightValue-c,northValue-l);
> coords[17]=new Point3f(eastValue-w,heightValue-c,northValue+l);
> coords[18]=new Point3f(eastValue-w,heightValue+c,northValue+l);
> coords[19]=new Point3f(eastValue-w,heightValue+c,northValue-l);
> // down side
> coords[20]=new Point3f(eastValue-w,heightValue-c,northValue+l);
> coords[21]=new Point3f(eastValue+w,heightValue-c,northValue+l);
> coords[22]=new Point3f(eastValue+w,heightValue-c,northValue-l);
> coords[23]=new Point3f(eastValue-w,heightValue-c,northValue-l);
>
> GeometryInfo gInfo = new GeometryInfo(GeometryInfo.QUAD_ARRAY);
> int[] stripCounts = {4,4,4,4,4,4};
> gInfo.setCoordinates(coords);
> gInfo.setStripCounts(stripCounts);
>
> shape3d.setGeometry(gInfo.getGeometryArray());
> shape3d.setAppearance(createAppearance());
>
> I think the box consists of 6 side with 4 coordinates for one side.
>
> But unfortunately I get the following error:
>
> Exception occurred during event dispatching:
> java.lang.IllegalArgumentException: StripCounts inconsistent with
> primitive
> at
> com.sun.j3d.utils.geometry.GeometryInfo.checkForBadData(GeometryInfo.
> java:1301)
> at
> com.sun.j3d.utils.geometry.GeometryInfo.getGeometryArray(GeometryInfo
> .java:1546)
> at app.gwvis.ConstructionSite.makeSite(ConstructionSite.java:138)
> at app.gwvis.ConstructionSite.<init>(ConstructionSite.java:55)
> at
>
> ...
>
> What is wrong or what has to be in Stripcounts when not the number of the
> vertices for each shape?
>
> I am lost.
>
> Thanks for your help in advance
>
> Thanks Desiree
>
> PS: I do not want to use the utility box class.
>
> o------------------------------------------------------------------------o
> | Desiree Hilbring Institut fuer Photogrammetrie und Fernerkundung |
> | Universitaet Karlsruhe, Germany |
> | |
> | email: [EMAIL PROTECTED] |
> | # 0721 6083676 |
> o------------------------------------------------------------------------o
>
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