Commit 2e52b77d authored by Radek Ošlejšek's avatar Radek Ošlejšek
Browse files

Resolve "Accelerate octree creation"

parent cf48d852

HumanFace/src/main/java/cz/fidentis/analyst/face/HumanFaceFactory.java

+2 −1
Original line number Diff line number Diff line
@@ -307,7 +307,8 @@ public class HumanFaceFactory { 
        int ret =  0;

        int counter = 0;

        while (counter++ < this.MAX_DUMP_FACES &&

                (double) presumableFreeMemory() / Runtime.getRuntime().maxMemory() <= MIN_FREE_MEMORY) {

                (double) presumableFreeMemory() / Runtime.getRuntime().maxMemory() <= MIN_FREE_MEMORY &&

                !inMemoryFaces.isEmpty()) {

            

            Long time = null;

            switch (strategy) {

MeshAlgorithms/src/test/java/cz/fidentis/analyst/raycasting/RayIntersectionVisitorTest.java

+17 −5
Original line number Diff line number Diff line
@@ -2,9 +2,11 @@ package cz.fidentis.analyst.raycasting; 


import cz.fidentis.analyst.raycasting.RayIntersectionOctree;

import cz.fidentis.analyst.octree.OctNode;

import cz.fidentis.analyst.octree.OctNodeLeaf;

import static cz.fidentis.analyst.raycasting.RayIntersectionOctree.getOctantIndex;

import static cz.fidentis.analyst.raycasting.RayIntersectionOctree.isPointInCube;

import java.util.ArrayList;

import java.util.Collections;

import java.util.HashMap;

import java.util.HashSet;

import java.util.List;
@@ -37,7 +39,11 @@ public class RayIntersectionVisitorTest { 
            }

        }



        var cube = new OctNode(new Point3d(-halfSize, -halfSize, -halfSize), new Point3d(halfSize, halfSize, halfSize));

        var cube = new OctNodeLeaf(

                new Point3d(-halfSize, -halfSize, -halfSize), 

                new Point3d(halfSize, halfSize, halfSize),

                Collections.emptyList()

        );



        for (Vector3d m : multipliers) {

            var point = new Point3d(m.x * halfSize, m.y * halfSize, m.z * halfSize);
@@ -83,8 +89,11 @@ public class RayIntersectionVisitorTest { 
        int quaterSize = 1;

        int halfSize = quaterSize * 2;

        int size = halfSize * 2;

        var cube = new OctNode(new Point3d(-halfSize, -halfSize, -halfSize),

                new Point3d(halfSize, halfSize, halfSize));

        var cube = new OctNodeLeaf(

                new Point3d(-halfSize, -halfSize, -halfSize),

                new Point3d(halfSize, halfSize, halfSize),

                Collections.emptyList()

        );

        Point3d point;

        for (int i = 0; i < multipliers.size(); i++) {

            for (Vector3d m : multipliers.get(i)) {
@@ -142,8 +151,11 @@ public class RayIntersectionVisitorTest { 
    public void rayCubeIntersectionTest() {

        int quaterSize = 1;

        int halfSize = quaterSize * 2;

        var cube = new OctNode(new Point3d(-halfSize, -halfSize, -halfSize),

                new Point3d(halfSize, halfSize, halfSize));

        var cube = new OctNodeLeaf(

                new Point3d(-halfSize, -halfSize, -halfSize),

                new Point3d(halfSize, halfSize, halfSize),

                Collections.emptyList()

        );

        int[] originSmallValues = {-7 * quaterSize, -2 * quaterSize, 3 * quaterSize};

        int[] mainCoorIndeces = {0, 1, 2};

        int[] mainCoorValues = {-2 * quaterSize, 2 * quaterSize};

SpacePartitioning/src/main/java/cz/fidentis/analyst/octree/OctNode.java

+7 −49
Original line number Diff line number Diff line
@@ -3,9 +3,7 @@ package cz.fidentis.analyst.octree; 
import cz.fidentis.analyst.mesh.core.MeshTriangle;

import java.io.Serializable;

import java.util.Collections;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

import javax.vecmath.Point3d;



/**
@@ -14,12 +12,12 @@ import javax.vecmath.Point3d; 
 *

 * @author Enkh-Undral EnkhBayar

 */

public class OctNode implements Serializable {

public abstract class OctNode implements Serializable {



    /**

     * Mesh facets sharing the stored vertex

     */

    private final Set<MeshTriangle> triangles;

    private final List<MeshTriangle> triangles;



    /**

     * Octree topology
@@ -36,22 +34,7 @@ public class OctNode implements Serializable { 
     */

    private final Point3d largestBoundary;



    /**

     * Constructor of OctNode for leaf Nodes

     *

     * @param smallest boundary box - corner with smallest coordinates. Must not

     * be null

     * @param largest boundary box - corner with largest coordinates. Must not

     * be null

     * @param triangles Mesh triangles which this oct node holds, meaning a

     * bounding box of the triangle intersects with this oct node Must not be

     * null

     * @throws IllegalArgumentException if some parameter is wrong

     */

    public OctNode(Point3d smallest, Point3d largest, Set<MeshTriangle> triangles) {

        if (triangles == null) {

            throw new IllegalArgumentException("triangles");

        }

    protected OctNode(Point3d smallest, Point3d largest, List<MeshTriangle> triangles, List<OctNode> octants) {

        if (smallest == null) {

            throw new IllegalArgumentException("Smallest boundary in OctNode cannot be null");

        }
@@ -60,33 +43,6 @@ public class OctNode implements Serializable { 
        }



        this.triangles = triangles;

        this.smallestBoundary = smallest;

        this.largestBoundary = largest;

    }



    /**

     * Constructor of OctNode for internal nodes

     *

     * @param smallest boundary box - corner with smallest coordinates. Must not

     * be null

     * @param largest boundary box - corner with largest coordinates. Must not

     * be null

     * @param octants List of octNodes which are children for this node. Must

     * not be null and has to have size of 8.

     * @throws IllegalArgumentException if some parameter is wrong

     */

    public OctNode(Point3d smallest, Point3d largest, List<OctNode> octants) {

        if (octants == null || octants.size() != 8) {

            throw new IllegalArgumentException("octants");

        }

        if (smallest == null) {

            throw new IllegalArgumentException("Smallest boundary in OctNode cannot be null");

        }

        if (largest == null) {

            throw new IllegalArgumentException("Largest boundary in OctNode cannot be null");

        }



        this.triangles = new HashSet<>();

        this.octants = octants;

        this.smallestBoundary = smallest;

        this.largestBoundary = largest;
@@ -101,6 +57,7 @@ public class OctNode implements Serializable { 
     * be null

     * @throws IllegalArgumentException if some parameter is wrong

     */

    /*

    public OctNode(Point3d smallest, Point3d largest) {

        if (smallest == null) {

            throw new IllegalArgumentException("Smallest boundary in OctNode cannot be null");
@@ -113,6 +70,7 @@ public class OctNode implements Serializable { 
        this.largestBoundary = largest;

        this.triangles = new HashSet<>();

    }

    */



    public boolean isLeafNode() {

        return octants == null || octants.isEmpty();
@@ -140,8 +98,8 @@ public class OctNode implements Serializable { 
     *

     * @return triangles which this oct node holds

     */

    public Set<MeshTriangle> getTriangles() {

        return Collections.unmodifiableSet(triangles);

    public List<MeshTriangle> getTriangles() {

        return Collections.unmodifiableList(triangles);

    }



    /**

SpacePartitioning/src/main/java/cz/fidentis/analyst/octree/OctNodeInner.java

0 → 100644
+31 −0
Original line number Diff line number Diff line 
package cz.fidentis.analyst.octree;



import java.util.Collections;

import java.util.List;

import javax.vecmath.Point3d;



/**

 * An inner node of an Octree.

 *

 * @author Enkh-Undral EnkhBayar

 */

public class OctNodeInner extends OctNode {

    

    /**

     * Constructor of an <b>internal node</b>

     *

     * @param smallest boundary box - corner with smallest coordinates. Must not

     * be null

     * @param largest boundary box - corner with largest coordinates. Must not

     * be null

     * @param octants List of octNodes which are children for this node. Must

     * not be null and has to have size of 8.

     * @throws IllegalArgumentException if some parameter is wrong

     */

    public OctNodeInner(Point3d smallest, Point3d largest, List<OctNode> octants) {

        super(smallest, largest, Collections.emptyList(), octants);

        if (octants == null || octants.size() != 8) {

            throw new IllegalArgumentException("octants");

        }

    }

}

SpacePartitioning/src/main/java/cz/fidentis/analyst/octree/OctNodeLeaf.java

0 → 100644
+32 −0
Original line number Diff line number Diff line 
package cz.fidentis.analyst.octree;



import cz.fidentis.analyst.mesh.core.MeshTriangle;

import java.util.List;

import javax.vecmath.Point3d;



/**

 * A leaf node of an Octree.

 *

 * @author Enkh-Undral EnkhBayar

 */

public class OctNodeLeaf extends OctNode {

    

    /**

     * Constructor of a <b>leaf node</b>

     *

     * @param smallest boundary box - corner with smallest coordinates. Must not

     * be null

     * @param largest boundary box - corner with largest coordinates. Must not

     * be null

     * @param triangles Mesh triangles which this oct node holds, meaning a

     * bounding box of the triangle intersects with this oct node Must not be

     * null

     * @throws IllegalArgumentException if some parameter is wrong

     */

    public OctNodeLeaf(Point3d smallest, Point3d largest, List<MeshTriangle> triangles) {

        super(smallest, largest, triangles, null);

        if (triangles == null) {

            throw new IllegalArgumentException("triangles");

        }

    }

}