[Garibalde]

I had the same problem you have to add zlib.lib in the linker for debug version. For some reason its looking for zlib.lib instead of zlibd.lib. This worked for me.

[Garibalde]

I was looking for a simple representation. I have used a simulated chain of spheres connected via JointSpringForceField to produce a representation of a segment or an artery or vein. I used SkinningMapping for the visual node. This seems to work in general however i do have stability issues at times when the end point of the segment are constrained.

So in summary this is my layout of the segment.

<MechanicalObject template=”Rigid” name=”DOFs”  restScale=”1″  position=”Insert here positions”>
<UniformMass template=”Rigid” name=”mass”  mass=”1 1 [1 0 0,0 1 0,0 0 1]” />
<FixedConstraint template=”Rigid” name=”fixOrigin”  indices=”0 10″ />
<UncoupledConstraintCorrection compliance=”0.01″/>
<Node name=”Seg_Test_Vinay.subnode”>
    <MechanicalObject template=”Rigid” name=”attaches”  restScale=”1″  position=”Insert here positions”>
    <RigidRigidMapping template=”MechanicalMapping<Rigid,Rigid>” name=”default6″  repartition=”1 2 2 2 2 2 2 2 2 2 1″ input=”@../DOFs”  output=”@attaches”/>
    <JointSpringForceField template=”Rigid” name=”joints”  spring=”Define spring between nodes”>

    <Node name=”Visu” tags=”Visual”>
        <OgreVisualModel  name=”VisualModel” fileMesh=”mesh/Seg_Cut_Test.obj” />
        <SkinningMapping name=”visual mapping” input=”@../../DOFs” output=”@VisualModel” />
    </Node>

    <Node name=”Surf”>
        <SphereLoader filename=”mesh/Seg_Cut_Test.sph”/>
        <MechanicalObject name=”spheres” translation=”0.0 0.0 0.0″ rotation=”0.0 0.0 0.0″ position=”@[-1].position” />
        <TSphereModel name=”CollisionModel” listRadius=”@[-2].listRadius”  collisionBodyId=”96″/>
        <SkinningMapping name=”sphere mapping” input=”@../../DOFs” output=”@spheres” />
    </Node>

Something like this would work for my use. I need it to be simple, computationally friendly and contactable (collision possible). Do you ahve something that is more efficient or better in SOFA currently that i could use?

Thanks
Vinay

[Garibalde]

Tetgen is a good application. I have used in a lot in the past.
Check out this link. http://wias-berlin.de/software/tetgen/

I usually pass it a STL file and it generates all the data for you to create a msh file. You need to combine the output from tetgen which are elem and node data.

[Garibalde]

Hi fspadoni and Guillaume,

Thanks for your replies.

Fspadoni, Do you use the multthread plugin in SOFA to accomplish this? I would like to paralllelise some of the tasks also in my scene to get better performance.

Any help would be great.

Thanks
Garibalde

[Author]

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