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

Example 1 with PointMesh

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

the class MeshMerger method main.

public static void main(String[] args) {
    ArgParser parser = new ArgParser("[options] <infileNames> ...");
    // parser.addOption ("-inFile %s #input file name", inFileName);
    parser.addOption("-out %s #name for output file", outFileName);
    parser.addOption("-pointMesh %v #meshes are assumed to be point meshes", pointMesh);
    parser.addOption("-format %s #printf-syle format string for vertex output", formatStr);
    int idx = 0;
    while (idx < args.length) {
        try {
            idx = parser.matchArg(args, idx);
            if (parser.getUnmatchedArgument() != null) {
                inFileNames.add(parser.getUnmatchedArgument());
            }
        } catch (Exception e) {
            // malformed or erroneous argument
            parser.printErrorAndExit(e.getMessage());
        }
    }
    if (inFileNames.size() == 0) {
        parser.printErrorAndExit("input file name(s) missing");
    }
    if (outFileName.value == null) {
        parser.printErrorAndExit("out file name missing");
    }
    try {
        MeshBase mesh = null;
        if (pointMesh.value) {
            mesh = new PointMesh();
        } else {
            mesh = new PolygonalMesh();
        }
        for (int i = 0; i < inFileNames.size(); i++) {
            File file = new File(inFileNames.get(i));
            if (!file.canRead()) {
                System.out.println("Warning: mesh file " + file.getName() + " not found or not reeadable");
            } else {
                if (pointMesh.value) {
                    PointMesh m = (PointMesh) GenericMeshReader.readMesh(file, new PointMesh());
                    ((PointMesh) mesh).addMesh(m);
                } else {
                    PolygonalMesh m = new PolygonalMesh(file);
                    ((PolygonalMesh) mesh).addMesh(m);
                }
            }
        }
        if (pointMesh.value) {
            GenericMeshWriter.writeMesh(new File(outFileName.value), mesh);
        } else {
            ((PolygonalMesh) mesh).write(new File(outFileName.value), formatStr.value);
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    }
}

Example 2 with PointMesh

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

the class MeshViewer method loadMeshes.

public static void loadMeshes(ArrayList<MeshInfo> infoList, String fileName, AffineTransform3dBase X) {
    try {
        File meshFile = new File(fileName);
        if (!meshFile.exists()) {
            System.out.println("Error: mesh file " + meshFile.getName() + " not found");
            return;
        }
        if (meshFile.getName().endsWith(".obj") && !pointMesh.value) {
            Class meshClass = Class.forName(className.value);
            Class meshBaseClass = new PolygonalMesh().getClass();
            if (meshClass == null) {
                System.out.println("can't find class " + className.value);
                return;
            }
            if (!meshBaseClass.isAssignableFrom(meshClass)) {
                System.out.println(className.value + " is not an instance of " + meshBaseClass.getName());
                return;
            }
            WavefrontReader reader = new WavefrontReader(meshFile);
            reader.parse();
            String[] names = reader.getPolyhedralGroupNames();
            for (int i = 0; i < names.length; i++) {
                if (meshClass == PolygonalMesh.class) {
                    PolygonalMesh mesh = (PolygonalMesh) meshClass.newInstance();
                    reader.setMesh(mesh, names[i]);
                    if (printBounds.value) {
                        doPrintBounds(mesh);
                    }
                    if (mesh.numVertices() > 0) {
                        System.out.print("mesh " + names[i] + ": " + mesh.numVertices() + " vertices, " + mesh.numFaces() + " faces, ");
                        if (mesh.isTriangular()) {
                            System.out.println("triangular");
                        } else if (mesh.isQuad()) {
                            System.out.println("quad");
                        } else {
                            System.out.println("polygonal");
                        }
                        mesh.transform(X);
                        if (names[i].equals("default")) {
                            infoList.add(new MeshInfo(meshFile.getName(), mesh));
                        } else {
                            infoList.add(new MeshInfo(meshFile.getName() + "(" + names[i] + ")", mesh));
                        }
                    }
                } else if (meshClass == PolylineMesh.class) {
                    PolylineMesh mesh = (PolylineMesh) meshClass.newInstance();
                    reader.setMesh(mesh, names[i]);
                    mesh.transform(X);
                    if (printBounds.value) {
                        doPrintBounds(mesh);
                    }
                    if (names[i].equals("default")) {
                        infoList.add(new MeshInfo(meshFile.getName(), mesh));
                    } else {
                        infoList.add(new MeshInfo(meshFile.getName() + "(" + names[i] + ")", mesh));
                    }
                } else if (meshClass == PointMesh.class) {
                    PointMesh mesh = (PointMesh) meshClass.newInstance();
                    reader.setMesh(mesh, names[i]);
                    mesh.transform(X);
                    if (printBounds.value) {
                        doPrintBounds(mesh);
                    }
                    if (names[i].equals("default")) {
                        infoList.add(new MeshInfo(meshFile.getName(), mesh));
                    } else {
                        infoList.add(new MeshInfo(meshFile.getName() + "(" + names[i] + ")", mesh));
                    }
                }
            }
        } else {
            MeshReader reader;
            if (meshFile.getName().endsWith(".xyzb")) {
                XyzbReader xyzbReader = new XyzbReader(meshFile);
                xyzbReader.setSkip(skipCount.value);
                reader = xyzbReader;
            } else {
                reader = new GenericMeshReader(meshFile);
            }
            MeshBase mesh = pointMesh.value ? new PointMesh() : null;
            mesh = reader.readMesh(mesh);
            if (printBounds.value) {
                doPrintBounds(mesh);
            }
            infoList.add(new MeshInfo(meshFile.getName(), mesh));
        }
    } catch (Exception e) {
        System.out.println("Error creating mesh");
        e.printStackTrace();
    }
}

Example 3 with PointMesh

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

the class XyzReader method read.

public PointMesh read(PointMesh mesh, File file) throws IOException {
    FileInputStream fin = new FileInputStream(file);
    PointMesh out = null;
    try {
        out = read(mesh, fin);
    } catch (IOException e) {
        throw e;
    } finally {
        closeQuietly(fin);
    }
    return out;
}

Example 4 with PointMesh

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

the class XyzReader method read.

public PointMesh read(PointMesh mesh, InputStream in) throws IOException {
    ReaderTokenizer rtok = new ReaderTokenizer(new BufferedReader(new InputStreamReader(in)));
    if (mesh == null) {
        mesh = new PointMesh();
    }
    mesh.clear();
    ArrayList<Point3d> vtxs = new ArrayList<Point3d>();
    ArrayList<Vector3d> nrms = new ArrayList<Vector3d>();
    boolean done = false;
    while (!done) {
        try {
            double vx = rtok.scanNumber();
            double vy = rtok.scanNumber();
            double vz = rtok.scanNumber();
            double nx = rtok.scanNumber();
            double ny = rtok.scanNumber();
            double nz = rtok.scanNumber();
            vtxs.add(new Point3d(vx, vy, vz));
            nrms.add(new Vector3d(nx, ny, nz));
        } catch (EOFException e) {
            done = true;
        }
    }
    mesh.set(vtxs.toArray(new Point3d[0]), nrms.toArray(new Vector3d[0]));
    return mesh;
}

Example 5 with PointMesh

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

the class RigidCompositeBody method addMeshInertia.

protected void addMeshInertia(MeshBase base, double density) {
    if (base == null) {
        throw new IllegalStateException("Mesh has not been set");
    }
    if (base instanceof PolygonalMesh) {
        PolygonalMesh mesh = (PolygonalMesh) base;
        SpatialInertia M = mesh.createInertia(density);
        mySpatialInertia.add(M);
    } else if (base instanceof PointMesh) {
    // XXX to implement
    } else if (base instanceof PolylineMesh) {
    // XXX to implement
    }
}