Examples with FemNode3d artisynth.core.femmodels.FemNode3d used on opensource projects

Example 21 with FemNode3d

use of artisynth.core.femmodels.FemNode3d in project artisynth_core by artisynth.

the class LinearAuxiliaryTest method createCylinder.

FemModel3d createCylinder(double h, double r) {
    FemModel3d fem = FemFactory.createCylinder(null, h, r, 24, 40, 4);
    fem.setDensity(1000);
    fem.setSurfaceRendering(SurfaceRender.Shaded);
    RenderProps.setFaceColor(fem, Color.ORANGE);
    RenderProps.setVisible(fem.getElements(), false);
    double eps = 1e-10;
    for (FemNode3d node : fem.getNodes()) {
        if (node.getPosition().z < -h / 2 + eps) {
            node.setDynamic(false);
        }
    }
    return fem;
}

Example 22 with FemNode3d

use of artisynth.core.femmodels.FemNode3d in project artisynth_core by artisynth.

the class LinearAuxiliaryTest method createHexGrid.

static FemModel3d createHexGrid(double wx, double wy, double wz, int nx, int ny, int nz) {
    FemModel3d fem = FemFactory.createHexGrid(null, wx, wy, wz, nx, ny, nz);
    fem.setDensity(1000);
    fem.setSurfaceRendering(SurfaceRender.Shaded);
    RenderProps.setFaceColor(fem, Color.ORANGE);
    RenderProps.setVisible(fem.getElements(), false);
    double eps = 1e-10;
    for (FemNode3d node : fem.getNodes()) {
        if (node.getPosition().x < -wx / 2 + eps) {
            node.setDynamic(false);
        }
    }
    return fem;
}

Example 23 with FemNode3d

use of artisynth.core.femmodels.FemNode3d in project artisynth_core by artisynth.

the class SimpleCollide method setBottomObject.

private void setBottomObject(Collidable comp, ObjectType type) {
    Renderable rcomp = (Renderable) comp;
    ((TransformableGeometry) comp).transformGeometry(AffineTransform3d.createScaling(myBottomScale));
    switch(type) {
        case FemEllipsoid:
        case FemSphere:
            {
                RenderProps.setPointColor(rcomp, Color.green);
                // fix the lower nodes
                Point3d min = new Point3d();
                RenderableUtils.getBounds(rcomp, min, null);
                FemModel3d fem = (FemModel3d) comp;
                fem.getSurfaceMesh();
                for (FemNode3d n : fem.getNodes()) {
                    if (fem.isSurfaceNode(n) && n.getPosition().z <= (min.z + mySize * 0.5)) {
                        n.setDynamic(false);
                    }
                }
                fem.resetRestPosition();
                break;
            }
        case FemCube:
            {
                RenderProps.setPointColor(rcomp, Color.green);
                // fix the lower nodes
                Point3d min = new Point3d();
                RenderableUtils.getBounds(rcomp, min, null);
                FemModel3d fem = (FemModel3d) comp;
                fem.getSurfaceMesh();
                for (FemNode3d n : fem.getNodes()) {
                    if (fem.isSurfaceNode(n) && n.getPosition().z <= (min.z + mySize * 0.1)) {
                        n.setDynamic(false);
                    }
                }
                // RenderProps.setAlpha (rcomp, 0.3);
                fem.resetRestPosition();
                break;
            }
        case Box:
            {
                ((RigidBody) comp).setDynamic(false);
                ((RigidBody) comp).setDistanceGridRes(new Vector3i(10, 5, 5));
                break;
            }
        case Molar:
            {
                ((RigidBody) comp).setPose(new RigidTransform3d(0, 0, 0, 0, -1, 0, Math.toRadians(172.09)));
                ((RigidBody) comp).setDynamic(false);
                break;
            }
        case Bin:
            {
                ((RigidBody) comp).setPose(new RigidTransform3d(0, 0, 0, 0, 0, 0, 0));
                ((RigidBody) comp).setDynamic(false);
                break;
            }
        case Paw:
        case House:
            {
                ((RigidBody) comp).setDynamic(false);
                break;
            }
        default:
            {
                throw new InternalErrorException("Unimplemented type " + type);
            }
    }
    myBottomObject = comp;
    myBottomType = type;
}

Example 24 with FemNode3d

use of artisynth.core.femmodels.FemNode3d in project artisynth_core by artisynth.

the class FemBeamWithBlock method build.

public void build(String[] args) throws IOException {
    // Build simple FemBeam
    super.build(args);
    // Create a rigid block and move to the side of FEM
    RigidBody block = RigidBody.createBox("block", width / 2, 1.2 * width, 1.2 * width, 2 * density);
    mech.addRigidBody(block);
    block.setPose(new RigidTransform3d(length / 2 + width / 4, 0, 0));
    // Attach right-side nodes to rigid block
    for (FemNode3d node : fem.getNodes()) {
        if (node.getPosition().x >= length / 2 - EPS) {
            mech.addAttachment(new PointFrameAttachment(block, node));
        }
    }
}

Example 25 with FemNode3d

use of artisynth.core.femmodels.FemNode3d in project artisynth_core by artisynth.

the class FemBeamTest method build.

@Override
public void build(String[] args) throws IOException {
    super.build(args);
    mech = new MechModel("mech");
    addModel(mech);
    fems = new RenderableComponentList<>(FemModel3d.class);
    FemModel3d tet = FemFactory.createTetGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    tet.setName("tet");
    fems.add(tet);
    FemModel3d pyr = FemFactory.createPyramidGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    pyr.setName("pyr");
    fems.add(pyr);
    FemModel3d wed = FemFactory.createWedgeGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    wed.setName("wed");
    fems.add(wed);
    FemModel3d hex = FemFactory.createHexGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    hex.setName("hex");
    fems.add(hex);
    FemModel3d qtet = FemFactory.createQuadtetGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    qtet.setName("qtet");
    fems.add(qtet);
    FemModel3d qpyr = FemFactory.createQuadpyramidGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    qpyr.setName("qpyr");
    fems.add(qpyr);
    FemModel3d qwed = FemFactory.createQuadwedgeGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    qwed.setName("qwed");
    fems.add(qwed);
    FemModel3d qhex = FemFactory.createQuadhexGrid(null, widthX, widthY, widthZ, numX, numY, numZ);
    qhex.setName("qhex");
    fems.add(qhex);
    // freeze lhs nodes
    double eps = 1e-10;
    for (FemModel3d fem : fems) {
        for (FemNode3d node : fem.getNodes()) {
            if (node.getRestPosition().x < -widthX / 2 + eps) {
                node.setDynamic(false);
            }
        }
    }
    // distribute
    double delta = widthY * 0.25;
    RigidTransform3d translate = new RigidTransform3d();
    for (FemModel3d fem : fems) {
        fem.transformGeometry(translate);
        translate.p.y += widthY + delta;
    }
    mech.add(fems);
    // render properties
    int nfems = fems.size();
    int ifem = 0;
    for (FemModel3d fem : fems) {
        fem.setSurfaceRendering(SurfaceRender.Shaded);
        float h = (float) ifem / nfems;
        RenderProps.setFaceColor(fem, Color.getHSBColor(h, 1.0f, 1.0f));
        ++ifem;
    }
    setMaterial(createDefaultMaterial());
}