Re: [ROOTDEV] TGLPlane

Christian,

You must add -lRGL in your ROOTLIBS.
In interpreted mode, ROOT/CINT can discover automatically in which library a class is and automatically load this library. The compiler cannot do this.
To find out in which library a class is, look at $ROOTSYS/etc/system.rootmap, you will see the library and its dependencies.

Rene Brun

On Tue, 20
Jun
2006, Christian Hansen
wrote:

>
> Dear Rooters,
>
> I tried TGLPlane. In a macro this worked fine:
>
> #include "iostream"
> #include "TGLUtil.h"
> void test() {
> TGLVertex3 pointOnPlane;
> pointOnPlane.Set(2,3,4);
> TGLVector3 normalForPlane;
> normalForPlane.Set(2,3,3);
> TGLPlane* aPlane = new TGLPlane(normalForPlane, pointOnPlane);
> TGLVertex3 point;
> pointOnPlane.Set(1,1,1);
> cout<<"Distance to point = "<<aPlane->DistanceTo(point)<<endl;
> }
>
> root [0] .x test.C
> Distance to point = -5.33002
>
> But then I try to do the same in a test program (attached)
> and it does not want to compile:
>
> PlaneTest.o(.text+0x40): In function `PlaneTest::test()':
> : undefined reference to `TGLVertex3::TGLVertex3()'
> PlaneTest.o(.text+0x71): In function `PlaneTest::test()':
> : undefined reference to `TGLVector3::TGLVector3()'
> and so on...
>
> I'm using version 5.10.
>
> What am I doing wrong... ?
>
> Cheers
> / Christian Hansen
>
> ================================================
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Received on Wed Jun 21 2006 - 07:00:27 MEST