Android Open Source - android-augment-reality-framework Paintable Radar Points

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.jwetherell.augmented_reality.ui.objects;
//from  w w w  .  j av  a2 s . c  o m
import com.jwetherell.augmented_reality.data.ARData;
import com.jwetherell.augmented_reality.ui.Marker;
import com.jwetherell.augmented_reality.ui.Radar;

import android.graphics.Canvas;


/**
 * This class extends PaintableObject to draw all the Markers at their
 * appropriate locations.
 * 
 * @author Justin Wetherell <phishman3579@gmail.com>
 */
public class PaintableRadarPoints extends PaintableObject {

    private final float[] locationArray = new float[3];
    private PaintablePoint paintablePoint = null;
    private PaintablePosition pointContainer = null;

    /**
     * {@inheritDoc}
     */
    @Override
    public void paint(Canvas canvas) {
        if (canvas == null) throw new NullPointerException();

        // Draw the markers in the circle
        float range = ARData.getRadius() * 1000;
        float scale = range / Radar.RADIUS;
        for (Marker pm : ARData.getMarkers()) {
            pm.getLocation().get(locationArray);
            float x = locationArray[0] / scale;
            float y = locationArray[2] / scale;
            if ((x*x + y*y) < (Radar.RADIUS * Radar.RADIUS)) {
                if (paintablePoint == null) paintablePoint = new PaintablePoint(pm.getColor(), true);
                else paintablePoint.set(pm.getColor(), true);

                if (pointContainer == null) pointContainer = new PaintablePosition(paintablePoint, (x + Radar.RADIUS - 1), (y + Radar.RADIUS - 1), 0, 1);
                else pointContainer.set(paintablePoint, (x+Radar.RADIUS-1), (y+Radar.RADIUS-1), 0, 1);

                pointContainer.paint(canvas);
            }
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public float getWidth() {
        return Radar.RADIUS * 2;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public float getHeight() {
        return Radar.RADIUS * 2;
    }
}

Java Source Code List