Examples with TriangleArray org.scijava.java3d.TriangleArray used on opensource projects

Example 6 with TriangleArray

use of org.scijava.java3d.TriangleArray in project GDSC-SMLM by aherbert.

the class ImageJ3DResultsViewer method createShape.

@SuppressWarnings("unused")
private static Shape3D createShape(Builder settings) {
    final LocalList<Point3f> points = new LocalList<>(1);
    points.push(new Point3f());
    // We try and match the geometry and appearance of the standard mesh.
    // Do this by creating a mesh with a single point and get the Geometry and Appearance.
    GeometryArray ga;
    CustomMesh mesh;
    final float transparency = getTransparency(settings);
    // Support drawing as points ...
    if (settings.getRendering() == 0) {
        mesh = new TransparentItemPointMesh(points, null, transparency);
        ((ItemPointMesh) mesh).setPointSize((float) settings.getPixelSize());
        updateAppearance(mesh, settings);
        // Assume the TransparentItemPointMesh sets COLOR_4
        ga = (GeometryArray) mesh.getGeometry();
    } else {
        final Rendering r = Rendering.forNumber(settings.getRendering());
        final List<Point3f> point = Shape3DHelper.createLocalisationObject(r);
        final Point3f[] vertices = point.toArray(new Point3f[1]);
        // Correct the direction
        ItemTriangleMesh.checkFacets(vertices);
        final double creaseAngle = (r.isHighResolution()) ? 44 : 0;
        mesh = new ItemTriangleMesh(vertices, points.toArray(new Point3f[1]), null, null, transparency, creaseAngle, null);
        updateAppearance(mesh, settings);
        final int nVertices = vertices.length;
        ga = new TriangleArray(nVertices, GeometryArray.COORDINATES | GeometryArray.NORMALS);
        // Copy the coords and normals. We don't require the vertex colours.
        final float[] coords = new float[nVertices * 3];
        final float[] normals = new float[nVertices * 3];
        final GeometryArray gaToCopy = (GeometryArray) mesh.getGeometry();
        gaToCopy.getCoordinates(0, coords);
        gaToCopy.getNormals(0, normals);
        ga.setCoordinates(0, coords);
        ga.setNormals(0, normals);
        ga.setValidVertexCount(nVertices);
    }
    return new Shape3D(ga, mesh.getAppearance());
}