Examples with Point2d maspack.matrix.Point2d used on opensource projects

Example 6 with Point2d

use of maspack.matrix.Point2d in project artisynth_core by artisynth.

the class MeshIntersectingProbe method findNextFace.

// does not add the vertex, goes in a loop around contour until we hit a face
private Face findNextFace(Point3d pnt, LinkedList<Point3d> contour, OBBTree obbt, Intersector2d ti, Vector3d vx, Vector3d vy, Point3d o, SplitStorage info) {
    Face face = null;
    Vector3d dir = new Vector3d();
    if (info.idx < contour.size() - 1) {
        dir.sub(contour.get(info.idx + 1), contour.get(info.idx));
    } else {
        dir.sub(contour.get(info.idx), contour.get(info.idx - 1));
    }
    dir.normalize();
    while (face == null && info.idx < contour.size() - 1) {
        Point3d pntNext = contour.get(info.idx + 1);
        Point2d pnt2d = Intersector2d.get2dCoordinate(pnt, vx, vy, o);
        Point2d pnt2dNext = Intersector2d.get2dCoordinate(pntNext, vx, vy, o);
        Vector2d diff2d = new Vector2d();
        ArrayList<BVNode> bvNodes = new ArrayList<BVNode>();
        // get close nodes
        obbt.intersectLineSegment(bvNodes, pnt, pntNext);
        double minDist = Double.MAX_VALUE;
        Point2d minPnt = null;
        for (BVNode node : bvNodes) {
            for (int i = 0; i < node.getNumElements(); i++) {
                Boundable ps = node.getElements()[i];
                if (ps instanceof Face) {
                    Face f = (Face) ps;
                    Vertex3d[] vtxs = f.getVertices();
                    Point2d p0 = Intersector2d.get2dCoordinate(vtxs[0].getWorldPoint(), vx, vy, o);
                    Point2d p1 = Intersector2d.get2dCoordinate(vtxs[1].getWorldPoint(), vx, vy, o);
                    Point2d p2 = Intersector2d.get2dCoordinate(vtxs[2].getWorldPoint(), vx, vy, o);
                    ArrayList<Point2d> points = new ArrayList<Point2d>();
                    ti.intersectTriangleLineSegment(p0, p1, p2, pnt2d, pnt2dNext, points);
                    // check points
                    for (Point2d p : points) {
                        diff2d.sub(p, pnt2d);
                        if (diff2d.norm() < minDist) {
                            face = f;
                            minDist = diff2d.norm();
                            minPnt = p;
                        }
                    }
                }
            }
        }
        if (face == null || minDist >= pnt2dNext.distance(pnt2d)) {
            face = null;
            // move to next point
            info.idx++;
            pnt = contour.get(info.idx);
            if (info.idx < contour.size() - 1) {
                dir.sub(contour.get(info.idx + 1), pnt);
            }
        } else {
            // snap to edge if within tolerance
            Point3d pos = Intersector2d.get3dCoordinate(minPnt, vx, vy, o);
            if (pos.distance(pnt) < ti.epsilon) {
                pos.set(pnt);
            }
            // check if we have to make a new vertex
            info.vtx = createOrGetVertex(pos, face.getVertices(), ti.epsilon);
        }
    }
    return face;
}

Example 7 with Point2d

use of maspack.matrix.Point2d in project artisynth_core by artisynth.

the class DicomPlaneViewer method buildRenderObject.

protected RenderObject buildRenderObject() {
    RenderObject robj = new RenderObject();
    float[][] coords = { { -0.5f, -0.5f }, { -0.5f, 0.5f }, { 0.5f, 0.5f }, { 0.5f, -0.5f } };
    // xy-slice
    Point2d[] texcoords = texture.getTextureCoordinates();
    robj.addNormal(0, 0, 1);
    for (int i = 0; i < 4; ++i) {
        robj.addPosition(coords[i][0], coords[i][1], 0);
        robj.addTextureCoord(texcoords[i]);
        robj.addVertex();
    }
    robj.createTriangleGroup();
    robj.addTriangle(0, 1, 2);
    robj.addTriangle(0, 2, 3);
    return robj;
}

Example 8 with Point2d

use of maspack.matrix.Point2d in project artisynth_core by artisynth.

the class TextLabeller3d method setDefaults.

@Override
protected void setDefaults() {
    myFont = new Font(defaultFontName, 0, defaultFontSize);
    myRenderProps = createDefaultRenderProps();
    hAlignment = defaultHAlignment;
    vAlignment = defaultVAlignment;
    myTextSize = defaultTextSize;
    myFontSize = defaultFontSize;
    myTextOffset = new Point2d(defaultTextOffset);
    myItems = new ArrayList<LabelItem>();
}

Example 9 with Point2d

use of maspack.matrix.Point2d in project artisynth_core by artisynth.

the class HudPrintStream method setDefaults.

@Override
protected void setDefaults() {
    myFont = new Font(defaultFontName, Font.PLAIN, defaultFontSize);
    myRenderProps = createDefaultRenderProps();
    hAlignment = defaultHAlignment;
    vAlignment = defaultVAlignment;
    myTextSize = defaultTextSize;
    myFontSize = defaultFontSize;
    myPos = new Point2d();
    myMaxDisplayLines = defaultNumDisplayLines;
    myLineSpacing = defaultLineSpacing;
    myBufferSize = defaultBufferSize;
    myTextLines = new String[myBufferSize];
    myLineIdx = 0;
    myScrollOffset = 0;
    clear();
}

Example 10 with Point2d

use of maspack.matrix.Point2d in project artisynth_core by artisynth.

the class HudPrintStream method fullscreen.

/**
 * Makes the HUD full-screen according to the viewer's current height
 */
public void fullscreen() {
    // save previous values so we can return
    lastLocation = new Point2d(myPos);
    lastVAlignment = vAlignment;
    // move to top
    myPos.set(myPos.x, 1);
    vAlignment = VerticalAlignment.TOP;
    isFullScreen = true;
}