Example usage for javafx.geometry Point3D midpoint

Introduction

In this page you can find the example usage for javafx.geometry Point3D midpoint.

Prototype

public Point3D midpoint(Point3D point) 

Source Link

Document

Returns a point which lies in the middle between this point and the specified point.

Usage

From source file:be.makercafe.apps.makerbench.editors.GCodeEditor.java

/**
 * Draws a line in 3D between 2 3D points on the given group.
 * //from   w  w  w . j a  v a2  s .co  m
 * @param origin
 *            Origin point
 * @param target
 *            Target point
 * @return 3D line (cylinder) between to points
 */
private Cylinder drawLine3D(Group group, Point3D origin, Point3D target, Material color) {
    if (color == null) {
        color = MATERIAL_BLACK; // default to orange
    }
    Point3D yAxis = new Point3D(0, 1, 0);
    Point3D diff = target.subtract(origin);
    double height = diff.magnitude();

    Point3D mid = target.midpoint(origin);
    Translate moveToMidpoint = new Translate(mid.getX(), mid.getY(), mid.getZ());

    Point3D axisOfRotation = diff.crossProduct(yAxis);
    double angle = Math.acos(diff.normalize().dotProduct(yAxis));
    Rotate rotateAroundCenter = new Rotate(-Math.toDegrees(angle), axisOfRotation);

    Cylinder line = new Cylinder(1, height);
    line.setMaterial(color);

    line.getTransforms().addAll(moveToMidpoint, rotateAroundCenter);

    if (group != null) {
        group.getChildren().add(line);
    }

    return line;
}

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