Examples with Polyline maspack.geometry.Polyline used on opensource projects

Example 1 with Polyline

use of maspack.geometry.Polyline in project artisynth_core by artisynth.

the class MayaAsciiReader method recursiveAddPolylines.

private void recursiveAddPolylines(Node<MayaNode> root, PolylineMesh mesh, AffineTransform3d trans, UnitInfo units, Pattern pregex) {
    // make copy so can traverse
    trans = new AffineTransform3d(trans);
    // children independently
    MayaNode data = root.getData();
    if (data instanceof MayaTransform) {
        MayaTransform dtrans = (MayaTransform) data;
        AffineTransform3d tu = new AffineTransform3d();
        dtrans.getTransform(tu);
        // convert units
        tu.p.scale(dtrans.units.length.getSI() / units.length.getSI());
        if (dtrans.inheritsTransform()) {
            trans.mul(tu);
        } else {
            trans.set(tu);
        }
    } else if (data instanceof MayaNurbsCurve) {
        MayaNurbsCurve mnc = (MayaNurbsCurve) data;
        if (pregex == null || pregex.matcher(mnc.getName()).matches()) {
            Polyline line = new Polyline(mnc.curve);
            if (line != null) {
                // transform line
                for (Vertex3d vtx : line.getVertices()) {
                    vtx.pnt.scale(mnc.units.length.getSI() / units.length.getSI());
                    vtx.pnt.transform(trans);
                }
                mesh.addLine(line);
            }
        }
    }
    for (Node<MayaNode> child : root.getChildren()) {
        recursiveAddPolylines(child, mesh, trans, units, pregex);
    }
}

Example 2 with Polyline

use of maspack.geometry.Polyline in project artisynth_core by artisynth.

the class AmiraMeshWriter method writeMesh.

public void writeMesh(PolylineMesh mesh) {
    PrintWriter pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(myOstream)));
    int nLineSize = 0;
    for (Polyline line : mesh.getLines()) {
        int nlineVerts = line.numVertices();
        if (nlineVerts > 0) {
            nLineSize += nlineVerts + 1;
        }
    }
    int nVerts = mesh.numVertices();
    pw.println(FILE_HEADER);
    // mesh name
    if (mesh.getName() != null) {
        pw.println("# " + mesh.getName());
    }
    pw.println();
    pw.println("define Lines " + nLineSize);
    pw.println("define Vertices " + nVerts);
    pw.println();
    pw.println("Parameters {");
    pw.println("    ContentType \"HxLineSet\"");
    pw.println("}");
    pw.println();
    pw.println("Vertices { float[3] Coordinates } = @1");
    pw.println("Lines { int LineIdx } = @2");
    pw.println();
    pw.println("@1 # xyz vertex coordinates");
    int idx = 0;
    for (Vertex3d vtx : mesh.getVertices()) {
        vtx.setIndex(idx++);
        pw.println(vtx.getPosition().toString(myFmt));
    }
    pw.println();
    pw.println("@2 # line indices, terminating with -1");
    for (Polyline line : mesh.getLines()) {
        idx = 0;
        Vertex3d[] vtxs = line.getVertices();
        if (vtxs.length > 0) {
            pw.print(vtxs[0].getIndex());
            for (int i = 1; i < vtxs.length; i++) {
                if ((i % maxLineIndexSize) == 0) {
                    pw.println();
                } else {
                    pw.print(" ");
                }
                pw.print(vtxs[i].getIndex());
            }
            if ((vtxs.length % maxLineIndexSize) == 0) {
                pw.println();
            } else {
                pw.print(" ");
            }
            pw.println(-1);
        }
    // end if non-null line
    }
    // end loop through lines
    pw.flush();
}