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

Example 1 with PolygonalMesh

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

the class MeshInfo method testMesh.

public void testMesh(File inputFile) throws IOException {
    String suffix = getExtension(inputFile.getName());
    if (suffix.equals("obj")) {
        PolygonalMesh mesh = new PolygonalMesh(inputFile);
        int nump;
        int numd;
        double vol = mesh.computeVolume();
        String errMsg = null;
        if (!mesh.isManifold()) {
            errMsg = "not manifold";
        } else if (!mesh.isClosed()) {
            errMsg = "not closed";
        } else if ((nump = numParts(mesh)) > 0) {
            errMsg = "has " + nump + " disconnected parts";
        } else if ((numd = mesh.numDegenerateFaces()) > 0) {
            errMsg = "has " + numd + " degenerate faces";
        }
        if (errMsg != null) {
            System.out.println("FAILED: " + inputFile.getName() + " " + errMsg);
        } else {
            System.out.println("PASSED");
        }
    } else {
        System.out.println("Unrecognized file extension: '" + suffix + "'");
    }
}

Example 2 with PolygonalMesh

use of maspack.geometry.PolygonalMesh 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 3 with PolygonalMesh

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

the class MeshThicken method createEditMenu.

protected void createEditMenu(JMenu menu) {
    JMenuItem item;
    item = addMenuItem(menu, "Thicken");
    item.setEnabled(myRegions.size() > 0);
    item = addMenuItem(menu, "Reverse thicken");
    item.setEnabled(myRegions.size() > 0);
    item = addMenuItem(menu, "Unthicken");
    item.setEnabled(myRegions.size() > 0);
    item = addMenuItem(menu, "Reverse unthicken");
    item.setEnabled(myRegions.size() > 0);
    item = addMenuItem(menu, "Smooth");
    item.setEnabled(myMesh instanceof PolygonalMesh);
    item = addMenuItem(menu, "Grow");
    item.setEnabled(myMesh instanceof PolygonalMesh);
    item = addMenuItem(menu, "Remesh");
    item.setEnabled(myMesh instanceof PolygonalMesh);
}

Example 4 with PolygonalMesh

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

the class MeshViewer method cleanMeshes.

private void cleanMeshes() {
    System.out.println("Cleaning ...");
    for (MeshBase m : myMeshes) {
        if (m instanceof PolygonalMesh) {
            boolean modified = false;
            PolygonalMesh pmesh = (PolygonalMesh) m;
            int nv = pmesh.mergeCloseVertices(myVertexMergeDist);
            if (nv > 0) {
                System.out.println("removed " + nv + " vertices");
                modified = true;
            }
            int nf = pmesh.removeDisconnectedFaces();
            if (nf > 0) {
                System.out.println("removed " + nf + " disconnected faces");
                modified = true;
            }
            if (modified) {
                pmesh.notifyVertexPositionsModified();
                if (m == myMeshes.get(myMeshes.size() - 1)) {
                    // if last mesh in list, need to update label text as well
                    setLabelText(myLastMeshName, m);
                }
            }
        }
    }
    System.out.println("done");
    viewer.rerender();
}

Example 5 with PolygonalMesh

use of maspack.geometry.PolygonalMesh 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();
    }
}