Examples with MeshReader maspack.geometry.io.MeshReader used on opensource projects

Example 1 with MeshReader

use of maspack.geometry.io.MeshReader 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();
    }
}