Examples with Point3f org.scijava.vecmath.Point3f used on opensource projects

Example 31 with Point3f

use of org.scijava.vecmath.Point3f in project mcib3d-core by mcib3d.

the class MeshEditor method smooth.

/**
 * If the Content instance wraps a mesh, smooth it by the
 * fraction K (0, 1).
 * @param orig
 * @param K
 * @return
 */
public static List smooth(final List orig, final float K) {
    // final List triangles = c.getMesh();
    List triangles = new ArrayList();
    triangles.addAll(orig);
    if (0 != triangles.size() % 3) {
        System.out.println("MeshEditor.smooth: need a list of points multiple of 3.");
        return null;
    }
    // for each unique point, find which other points are linked by one edge to it.
    // In the triangles List, there are only points, but each sequence of 3 points makes a triangle.
    final HashMap ht = new HashMap();
    for (int i = 0; i < triangles.size(); i += 3) {
        // process one triangle at a time
        Point3f p1 = (Point3f) triangles.get(i);
        Point3f p2 = (Point3f) triangles.get(i + 1);
        Point3f p3 = (Point3f) triangles.get(i + 2);
        build(p1, p2, p3, ht);
        build(p2, p3, p1, ht);
        build(p3, p1, p2, ht);
    }
    /*  // shrinkage correction works, but generates undesirably unsmooth edges
        for (Iterator it = ht.values().iterator(); it.hasNext(); ) {
        PointGroup pg = (PointGroup)it.next();
        pg.computeVector(K);
        }
        for (Iterator it = ht.values().iterator(); it.hasNext(); ) {
        PointGroup pg = (PointGroup)it.next();
        pg.applyVector(ht);
        }
         */
    for (Iterator it = ht.values().iterator(); it.hasNext(); ) {
        PointGroup pg = (PointGroup) it.next();
        pg.smoothMembers(K);
    }
    return triangles;
}

Example 32 with Point3f

use of org.scijava.vecmath.Point3f in project mcib3d-core by mcib3d.

the class Object3DSurface method getNormalVertex.

public Point3f getNormalVertex(int idx) {
    if (vertices_faces_index == null) {
        computeUniqueVertices();
    }
    List<Integer> list = vertices_faces_index.get(idx);
    Point3f N = new Point3f();
    for (int i : list) {
        N.add(getNormalFace(i));
    }
    float le = N.distance(new Point3f());
    N.scale(1.0f / le);
    return N;
}

Example 33 with Point3f

use of org.scijava.vecmath.Point3f in project mcib3d-core by mcib3d.

the class Object3DSurface method drawFacesCurvature.

public Content drawFacesCurvature(Image3DUniverse univ, double[] cur, String name, boolean useCalibration) {
    List<Point3f> face = new ArrayList();
    double min = cur[0];
    double max = cur[0];
    for (double d : cur) {
        if (d < min) {
            min = d;
        }
        if (d > max) {
            max = d;
        }
    }
    for (int i = 0; i < faces.size(); i += 3) {
        Point3D P1 = new Point3D(faces.get(i));
        if (!useCalibration) {
            P1.scale(1.0 / resXY, 1.0 / resXY, 1.0 / resZ);
        }
        face.add(P1.getPoint3f());
        P1 = new Point3D(faces.get(i + 1));
        if (!useCalibration) {
            P1.scale(1.0 / resXY, 1.0 / resXY, 1.0 / resZ);
        }
        face.add(P1.getPoint3f());
        P1 = new Point3D(faces.get(i + 2));
        if (!useCalibration) {
            P1.scale(1.0 / resXY, 1.0 / resXY, 1.0 / resZ);
        }
        face.add(P1.getPoint3f());
        Color3f col = new Color3f((float) ((cur[i] - min) / (max - min)), (float) ((cur[i] - min) / (max - min)), 0);
        univ.addTriangleMesh(face, col, name + "_" + i);
    }
    return univ.getContent(name);
}

Example 34 with Point3f

use of org.scijava.vecmath.Point3f in project mcib3d-core by mcib3d.

the class Object3DSurface method computeBounding.

@Override
protected void computeBounding() {
    xmin = Integer.MAX_VALUE;
    xmax = 0;
    ymin = Integer.MAX_VALUE;
    ymax = 0;
    zmin = Integer.MAX_VALUE;
    zmax = 0;
    Point3f vox;
    for (Point3f vertice : vertices) {
        vox = vertice;
        if (vox.x < xmin) {
            xmin = (int) vox.x;
        }
        if (vox.x > xmax) {
            xmax = (int) vox.x;
        }
        if (vox.y < ymin) {
            ymin = (int) vox.y;
        }
        if (vox.y > ymax) {
            ymax = (int) vox.y;
        }
        if (vox.z < zmin) {
            zmin = (int) vox.z;
        }
        if (vox.z > zmax) {
            zmax = (int) vox.z;
        }
    }
}

Example 35 with Point3f

use of org.scijava.vecmath.Point3f in project mcib3d-core by mcib3d.

the class Object3DSurface method scale.

public void scale(double scale) {
    Point3D center = this.getCenterAsVector();
    for (int i = 0; i < faces.size(); i++) {
        Point3f P = this.getVertex(i);
        // Point3D P0 = new Vector3D(P);
        Point3D P0 = new Point3D(P);
        Vector3D V0 = new Vector3D(center, P0);
        Vector3D V1 = V0.multiply(scale);
        Point3D P1 = new Vector3D(center);
        P1.translate(V1);
        P.set(P1.getPoint3f());
    }
    init();
// this.computeUniqueVertices();
}