Examples with IParticleRecord gaiasky.scenegraph.particle.IParticleRecord used on opensource projects

Example 26 with IParticleRecord

use of gaiasky.scenegraph.particle.IParticleRecord in project gaiasky by langurmonkey.

the class StarGroupBinaryIO method readParticles.

/**
 * Reads a single star group from the given input stream.
 *
 * @param in The input stream to read the star group from
 * @return A list with a single star group object
 */
public List<SceneGraphNode> readParticles(InputStream in) {
    List<IParticleRecord> data = provider.loadData(in, 1.0);
    StarGroup sg = new StarGroup();
    sg.setData(data);
    List<SceneGraphNode> l = new ArrayList<>(1);
    l.add(sg);
    return l;
}

Example 27 with IParticleRecord

use of gaiasky.scenegraph.particle.IParticleRecord in project gaiasky by langurmonkey.

the class StarGroupSerializedIO method writeParticles.

public void writeParticles(List<SceneGraphNode> list, OutputStream out, int version) {
    if (list.size() > 0) {
        StarGroup sg = (StarGroup) list.get(0);
        List<IParticleRecord> l = new ArrayList<>(sg.size());
        for (IParticleRecord p : sg.data()) {
            l.add(p);
        }
        try {
            ObjectOutputStream oos = new ObjectOutputStream(out);
            oos.writeObject(l);
            oos.close();
        } catch (Exception e) {
            logger.error(e);
        }
    }
}

Example 28 with IParticleRecord

use of gaiasky.scenegraph.particle.IParticleRecord in project gaiasky by langurmonkey.

the class StarGroupSerializedIO method readParticles.

/**
 * Reads a single star group from the given input stream.
 *
 * @param in
 *            The input stream to read the star group from
 * @return A list with a single star group object
 */
public List<SceneGraphNode> readParticles(InputStream in) {
    List<IParticleRecord> data = provider.loadData(in, 1.0);
    StarGroup sg = new StarGroup();
    sg.setData(data);
    List<SceneGraphNode> l = new ArrayList<>(1);
    l.add(sg);
    return l;
}

Example 29 with IParticleRecord

use of gaiasky.scenegraph.particle.IParticleRecord in project gaiasky by langurmonkey.

the class BrightestStars method sample.

@Override
public boolean sample(List<IParticleRecord> inputStars, OctreeNode octant, float percentage) {
    // Calculate nObjects for this octant based on maxObjs and the MAX_PART
    int nInput = inputStars.size();
    int nObjects = MathUtils.clamp(Math.round(nInput * percentage), 1, Integer.MAX_VALUE);
    StarGroup sg = new StarGroup();
    List<IParticleRecord> data = new ArrayList<>();
    if (nInput <= MIN_PART || octant.depth >= MAX_DEPTH) {
        if (!DISCARD) {
            // Never discard any
            for (IParticleRecord s : inputStars) {
                if (s.octant() == null) {
                    data.add(s);
                    s.setOctant(octant);
                }
            }
        } else {
            if (nInput <= MIN_PART) {
                // Downright use all stars that have not been assigned
                for (IParticleRecord s : inputStars) {
                    if (s.octant() == null) {
                        data.add(s);
                        s.setOctant(octant);
                    }
                }
            } else {
                // Select sample, discard the rest
                inputStars.sort(comp);
                for (int i = 0; i < nObjects; i++) {
                    IParticleRecord s = inputStars.get(i);
                    if (s.octant() == null) {
                        data.add(s);
                        s.setOctant(octant);
                    }
                }
                discarded += nInput - nObjects;
            }
        }
        sg.setData(data, false);
        octant.add(sg);
        sg.octant = octant;
        sg.octantId = octant.pageId;
        return true;
    } else {
        // Extract sample
        inputStars.sort(comp);
        int added = 0;
        int i = 0;
        while (added < nObjects && i < inputStars.size()) {
            IParticleRecord s = inputStars.get(i);
            if (s.octant() == null) {
                // Add star
                data.add(s);
                s.setOctant(octant);
                added++;
            }
            i++;
        }
        if (added > 0) {
            sg.setData(data, false);
            octant.add(sg);
            sg.octant = octant;
            sg.octantId = octant.pageId;
        }
        // It is leaf if we added all the stars
        return added == inputStars.size();
    }
}

Example 30 with IParticleRecord

use of gaiasky.scenegraph.particle.IParticleRecord in project gaiasky by langurmonkey.

the class BrightestStarsSimple method sample.

@Override
public boolean sample(List<IParticleRecord> inputStars, OctreeNode octant, float percentage) {
    StarGroup sg = new StarGroup();
    List<IParticleRecord> data = new ArrayList<>();
    int nInput = inputStars.size();
    inputStars.sort(comp);
    int added = 0;
    while (added < MAX_PART && added < nInput) {
        IParticleRecord sb = inputStars.get(added);
        if (sb.octant() == null) {
            data.add(sb);
            sb.setOctant(octant);
            added++;
        }
    }
    if (added > 0) {
        sg.setData(data, false);
        octant.add(sg);
        sg.octant = octant;
        sg.octantId = octant.pageId;
    }
    return added == inputStars.size();
}