Examples with Spatial com.ardor3d.scenegraph.Spatial used on opensource projects

Example 21 with Spatial

use of com.ardor3d.scenegraph.Spatial in project energy3d by concord-consortium.

the class NodeWorker method reach.

// If a ray in the direction of the normal of this mesh doesn't hit anything, it is considered as an exterior face of a twin mesh. Otherwise, it is considered as the interior face.
private static void reach(final Mesh mesh, final List<Spatial> collidables) {
    final UserData userData = (UserData) mesh.getUserData();
    final ReadOnlyVector3 normal = userData.getRotatedNormal() == null ? userData.getNormal() : userData.getRotatedNormal();
    final FloatBuffer vertexBuffer = mesh.getMeshData().getVertexBuffer();
    vertexBuffer.rewind();
    final List<ReadOnlyVector3> vertices = new ArrayList<ReadOnlyVector3>(vertexBuffer.limit() / 3);
    while (vertexBuffer.hasRemaining()) {
        vertices.add(mesh.localToWorld(new Vector3(vertexBuffer.get(), vertexBuffer.get(), vertexBuffer.get()), null));
    }
    final Vector3 p = new Vector3();
    // use only the center
    // for (final ReadOnlyVector3 v : vertices) {
    // p.addLocal(v);
    // }
    // p.multiplyLocal(1.0 / vertices.size());
    // check if the centers of the triangles can be reached, if one can, then the entire mesh is considered as an exterior face
    boolean reachable = false;
    final PickResults pickResults = new PrimitivePickResults();
    // assuming triangular meshes
    final int n = vertices.size() / 3;
    for (int i = 0; i < n; i++) {
        // get the center of the triangle
        p.zero();
        p.addLocal(vertices.get(3 * i));
        p.addLocal(vertices.get(3 * i + 1));
        p.addLocal(vertices.get(3 * i + 2));
        p.multiplyLocal(1.0 / 3.0);
        // we must apply the offset transfer as these points come from the vertex buffer that is not affected by the translation definition of the mesh
        // p.addLocal(normal.multiply(node.getMeshThickness(), null));
        // detect collision
        pickResults.clear();
        final Ray3 pickRay = new Ray3(p, normal);
        for (final Spatial spatial : collidables) {
            if (spatial != mesh) {
                PickingUtil.findPick(spatial, pickRay, pickResults, false);
                if (pickResults.getNumber() != 0) {
                    break;
                }
            }
        }
        if (pickResults.getNumber() == 0) {
            reachable = true;
            break;
        }
    }
    userData.setReachable(reachable);
}

Example 22 with Spatial

use of com.ardor3d.scenegraph.Spatial in project energy3d by concord-consortium.

the class SolarRadiation method computeOnMirror.

// unlike PV solar panels, no indirect (ambient or diffuse) radiation should be included in reflection calculation
private void computeOnMirror(final int minute, final ReadOnlyVector3 directionTowardSun, final Mirror mirror) {
    final int nx = Scene.getInstance().getMirrorNx();
    final int ny = Scene.getInstance().getMirrorNy();
    final Foundation target = mirror.getReceiver();
    if (target != null) {
        final Calendar calendar = Heliodon.getInstance().getCalendar();
        calendar.set(Calendar.HOUR_OF_DAY, (int) ((double) minute / (double) SolarRadiation.MINUTES_OF_DAY * 24.0));
        calendar.set(Calendar.MINUTE, minute % 60);
        mirror.draw();
    }
    // nx*ny*60: nx*ny is to get the unit cell area of the nx*ny grid; 60 is to convert the unit of timeStep from minute to kWh
    final double a = mirror.getMirrorWidth() * mirror.getMirrorHeight() * Scene.getInstance().getTimeStep() / (nx * ny * 60.0);
    final ReadOnlyVector3 normal = mirror.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    final Mesh mesh = mirror.getRadiationMesh();
    MeshDataStore data = onMesh.get(mesh);
    if (data == null) {
        data = initMeshTextureDataOnRectangle(mesh, nx, ny);
    }
    final ReadOnlyVector3 offset = directionTowardSun.multiply(1, null);
    final double dot = normal.dot(directionTowardSun);
    double directRadiation = 0;
    if (dot > 0) {
        directRadiation += calculateDirectRadiation(directionTowardSun, normal);
    }
    final FloatBuffer vertexBuffer = mesh.getMeshData().getVertexBuffer();
    // (0, 0)
    final Vector3 p0 = new Vector3(vertexBuffer.get(3), vertexBuffer.get(4), vertexBuffer.get(5));
    // (1, 0)
    final Vector3 p1 = new Vector3(vertexBuffer.get(6), vertexBuffer.get(7), vertexBuffer.get(8));
    // (0, 1)
    final Vector3 p2 = new Vector3(vertexBuffer.get(0), vertexBuffer.get(1), vertexBuffer.get(2));
    // final Vector3 q0 = drawMesh.localToWorld(p0, null);
    // final Vector3 q1 = drawMesh.localToWorld(p1, null);
    // final Vector3 q2 = drawMesh.localToWorld(p2, null);
    // System.out.println("***" + q0.distance(q1) * Scene.getInstance().getAnnotationScale() + "," + q0.distance(q2) * Scene.getInstance().getAnnotationScale());
    // this is the longer side (supposed to be y)
    final Vector3 u = p1.subtract(p0, null).normalizeLocal();
    // this is the shorter side (supposed to be x)
    final Vector3 v = p2.subtract(p0, null).normalizeLocal();
    // x and y must be swapped to have correct heat map texture, because nx represents rows and ny columns as we call initMeshTextureDataOnRectangle(mesh, nx, ny)
    final double xSpacing = p1.distance(p0) / nx;
    final double ySpacing = p2.distance(p0) / ny;
    final Vector3 receiver = target != null ? target.getSolarReceiverCenter() : null;
    List<Mesh> towerCollisionMeshes = null;
    if (target != null) {
        towerCollisionMeshes = new ArrayList<Mesh>();
        for (final HousePart child : target.getChildren()) {
            towerCollisionMeshes.add((Mesh) child.getRadiationCollisionSpatial());
        }
        final List<Roof> roofs = target.getRoofs();
        if (!roofs.isEmpty()) {
            for (final Roof r : roofs) {
                for (final Spatial roofPart : r.getRoofPartsRoot().getChildren()) {
                    towerCollisionMeshes.add((Mesh) ((Node) roofPart).getChild(6));
                }
            }
        }
    }
    final int iMinute = minute / Scene.getInstance().getTimeStep();
    final boolean reflectionMapOnly = Scene.getInstance().getOnlyReflectedEnergyInMirrorSolarMap();
    for (int x = 0; x < nx; x++) {
        for (int y = 0; y < ny; y++) {
            if (EnergyPanel.getInstance().isCancelled()) {
                throw new CancellationException();
            }
            final Vector3 u2 = u.multiply(xSpacing * (x + 0.5), null);
            final Vector3 v2 = v.multiply(ySpacing * (y + 0.5), null);
            final ReadOnlyVector3 p = mesh.getWorldTransform().applyForward(p0.add(v2, null).addLocal(u2)).addLocal(offset);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            if (dot > 0) {
                final PickResults pickResults = new PrimitivePickResults();
                for (final Spatial spatial : collidables) {
                    if (spatial != mesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    // for heat map generation
                    if (!reflectionMapOnly) {
                        data.dailySolarIntensity[x][y] += directRadiation;
                    }
                    if (receiver != null) {
                        // for concentrated energy calculation
                        final Vector3 toReceiver = receiver.subtract(p, null);
                        final Ray3 rayToReceiver = new Ray3(p, toReceiver.normalize(null));
                        final PickResults pickResultsToReceiver = new PrimitivePickResults();
                        for (final Spatial spatial : collidables) {
                            if (spatial != mesh) {
                                if (towerCollisionMeshes == null || (towerCollisionMeshes != null && !towerCollisionMeshes.contains(spatial))) {
                                    PickingUtil.findPick(spatial, rayToReceiver, pickResultsToReceiver, false);
                                    if (pickResultsToReceiver.getNumber() != 0) {
                                        break;
                                    }
                                }
                            }
                        }
                        if (pickResultsToReceiver.getNumber() == 0) {
                            final double r = directRadiation * Atmosphere.getTransmittance(toReceiver.length() * Scene.getInstance().getAnnotationScale() * 0.001, false);
                            mirror.getSolarPotential()[iMinute] += r * a;
                            if (reflectionMapOnly) {
                                data.dailySolarIntensity[x][y] += r;
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 23 with Spatial

use of com.ardor3d.scenegraph.Spatial in project energy3d by concord-consortium.

the class SolarRadiation method computeOnImportedMesh.

private void computeOnImportedMesh(final int minute, final ReadOnlyVector3 directionTowardSun, final Foundation foundation, final Mesh mesh) {
    final UserData userData = (UserData) mesh.getUserData();
    if (!userData.isReachable()) {
        return;
    }
    final ReadOnlyVector3 normal = userData.getRotatedNormal() == null ? userData.getNormal() : userData.getRotatedNormal();
    final MeshDataStore data = onMesh.get(mesh);
    final int timeStep = Scene.getInstance().getTimeStep();
    final int iMinute = minute / timeStep;
    final double dot = normal.dot(directionTowardSun);
    final double directRadiation = dot > 0 ? calculateDirectRadiation(directionTowardSun, normal) : 0;
    final double indirectRadiation = calculateDiffuseAndReflectedRadiation(directionTowardSun, normal);
    final double solarStep = Scene.getInstance().getSolarStep();
    final double annotationScale = Scene.getInstance().getAnnotationScale();
    final double scaleFactor = annotationScale * annotationScale / 60 * timeStep;
    final float absorption = 1 - foundation.getAlbedo();
    for (int col = 0; col < data.cols; col++) {
        // final double w = col == data.cols - 1 ? data.p2.distance(data.u.multiply(col * solarStep, null).addLocal(data.p0)) : solarStep;
        final double w = col == data.cols - 1 ? data.p2.distance(data.p0) - col * solarStep : solarStep;
        final ReadOnlyVector3 pU = data.u.multiply(col * solarStep + 0.5 * w, null).addLocal(data.p0);
        for (int row = 0; row < data.rows; row++) {
            if (EnergyPanel.getInstance().isCancelled()) {
                throw new CancellationException();
            }
            if (data.dailySolarIntensity[row][col] == -1) {
                continue;
            }
            final double h = row == data.rows - 1 ? data.p1.distance(data.p0) - row * solarStep : solarStep;
            // cannot do offset as in computeOnMesh
            final ReadOnlyVector3 p = data.v.multiply(row * solarStep + 0.5 * h, null).addLocal(pU);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            final PickResults pickResults = new PrimitivePickResults();
            // assuming that indirect (ambient or diffuse) radiation can always reach a grid point
            double radiation = indirectRadiation;
            final double scaledArea = w * h * scaleFactor;
            if (dot > 0) {
                for (final Spatial spatial : collidables) {
                    if (EnergyPanel.getInstance().isCancelled()) {
                        throw new CancellationException();
                    }
                    if (spatial != mesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    radiation += directRadiation;
                }
            }
            data.dailySolarIntensity[row][col] += Scene.getInstance().getOnlyAbsorptionInSolarMap() ? absorption * radiation : radiation;
            if (data.solarPotential != null) {
                data.solarPotential[iMinute] += radiation * scaledArea;
            }
            // sum all the solar energy up over all meshes and store in the foundation's solar potential array
            foundation.getSolarPotential()[iMinute] += radiation * scaledArea;
        }
    }
}

Example 24 with Spatial

use of com.ardor3d.scenegraph.Spatial in project energy3d by concord-consortium.

the class SolarRadiation method initCollidables.

private void initCollidables() {
    collidables.clear();
    collidablesToParts.clear();
    for (final HousePart part : Scene.getInstance().getParts()) {
        if (part instanceof SolarCollector || part instanceof Tree || part instanceof Window) {
            if (part instanceof Rack) {
                final Rack rack = (Rack) part;
                if (rack.isMonolithic()) {
                    final Spatial s = part.getRadiationCollisionSpatial();
                    collidables.add(s);
                    collidablesToParts.put(s, rack);
                }
            } else {
                final Spatial s = part.getRadiationCollisionSpatial();
                collidables.add(s);
                collidablesToParts.put(s, part);
            }
        } else if (part instanceof Foundation) {
            final Foundation foundation = (Foundation) part;
            for (int i = 0; i < 4; i++) {
                final Spatial s = foundation.getRadiationCollisionSpatial(i);
                collidables.add(s);
                collidablesToParts.put(s, foundation);
            }
            final List<Node> importedNodes = foundation.getImportedNodes();
            if (importedNodes != null) {
                for (final Node node : importedNodes) {
                    for (final Spatial s : node.getChildren()) {
                        collidables.add(s);
                        collidablesToParts.put(s, foundation);
                    }
                }
            }
        } else if (part instanceof Wall) {
            final Wall wall = (Wall) part;
            if (wall.getType() == Wall.SOLID_WALL) {
                final Spatial s = part.getRadiationCollisionSpatial();
                collidables.add(s);
                collidablesToParts.put(s, wall);
            }
        } else if (part instanceof Door) {
            final Door door = (Door) part;
            final Spatial s = door.getRadiationCollisionSpatial();
            collidables.add(s);
            collidablesToParts.put(s, door);
        } else if (part instanceof Floor) {
            final Floor floor = (Floor) part;
            final Spatial s = floor.getRadiationCollisionSpatial();
            collidables.add(s);
            collidablesToParts.put(s, floor);
        } else if (part instanceof Roof) {
            final Roof roof = (Roof) part;
            for (final Spatial roofPart : roof.getRoofPartsRoot().getChildren()) {
                if (roofPart.getSceneHints().getCullHint() != CullHint.Always) {
                    final Spatial s = ((Node) roofPart).getChild(6);
                    collidables.add(s);
                    collidablesToParts.put(s, roof);
                }
            }
        }
    }
}

Example 25 with Spatial

use of com.ardor3d.scenegraph.Spatial in project energy3d by concord-consortium.

the class SolarRadiation method computeOnFresnelReflector.

// unlike PV solar panels, no indirect (ambient or diffuse) radiation should be included in reflection calculation
private void computeOnFresnelReflector(final int minute, final ReadOnlyVector3 directionTowardSun, final FresnelReflector reflector) {
    final int nx = reflector.getNSectionLength();
    final int ny = reflector.getNSectionWidth();
    final Foundation target = reflector.getReceiver();
    if (target != null) {
        final Calendar calendar = Heliodon.getInstance().getCalendar();
        calendar.set(Calendar.HOUR_OF_DAY, (int) ((double) minute / (double) SolarRadiation.MINUTES_OF_DAY * 24.0));
        calendar.set(Calendar.MINUTE, minute % 60);
        reflector.draw();
    }
    // nx*ny*60: nx*ny is to get the unit cell area of the nx*ny grid; 60 is to convert the unit of timeStep from minute to kWh
    final double a = reflector.getModuleWidth() * reflector.getLength() * Scene.getInstance().getTimeStep() / (nx * ny * 60.0);
    final ReadOnlyVector3 normal = reflector.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    final Mesh mesh = reflector.getRadiationMesh();
    MeshDataStore data = onMesh.get(mesh);
    if (data == null) {
        data = initMeshTextureDataOnRectangle(mesh, nx, ny);
    }
    final ReadOnlyVector3 offset = directionTowardSun.multiply(1, null);
    final double dot = normal.dot(directionTowardSun);
    double directRadiation = 0;
    if (dot > 0) {
        directRadiation += calculateDirectRadiation(directionTowardSun, normal);
    }
    final FloatBuffer vertexBuffer = mesh.getMeshData().getVertexBuffer();
    // (0, 0)
    final Vector3 p0 = new Vector3(vertexBuffer.get(3), vertexBuffer.get(4), vertexBuffer.get(5));
    // (1, 0)
    final Vector3 p1 = new Vector3(vertexBuffer.get(6), vertexBuffer.get(7), vertexBuffer.get(8));
    // (0, 1)
    final Vector3 p2 = new Vector3(vertexBuffer.get(0), vertexBuffer.get(1), vertexBuffer.get(2));
    // final Vector3 q0 = mesh.localToWorld(p0, null);
    // final Vector3 q1 = mesh.localToWorld(p1, null);
    // final Vector3 q2 = mesh.localToWorld(p2, null);
    // System.out.println("***" + q0.distance(q1) * Scene.getInstance().getAnnotationScale() + "," + q0.distance(q2) * Scene.getInstance().getAnnotationScale());
    // this is the longer side (supposed to be y)
    final Vector3 u = p1.subtract(p0, null).normalizeLocal();
    // this is the shorter side (supposed to be x)
    final Vector3 v = p2.subtract(p0, null).normalizeLocal();
    // x and y must be swapped to have correct heat map texture, because nx represents rows and ny columns as we call initMeshTextureDataOnRectangle(mesh, nx, ny)
    final double xSpacing = p1.distance(p0) / nx;
    final double ySpacing = p2.distance(p0) / ny;
    final Vector3 absorber = target != null ? target.getSolarReceiverCenter() : null;
    List<Mesh> absorberCollisionMeshes = null;
    if (target != null) {
        absorberCollisionMeshes = new ArrayList<Mesh>();
        for (final HousePart child : target.getChildren()) {
            absorberCollisionMeshes.add((Mesh) child.getRadiationCollisionSpatial());
        }
        final List<Roof> roofs = target.getRoofs();
        if (!roofs.isEmpty()) {
            for (final Roof r : roofs) {
                for (final Spatial roofPart : r.getRoofPartsRoot().getChildren()) {
                    absorberCollisionMeshes.add((Mesh) ((Node) roofPart).getChild(6));
                }
            }
        }
    }
    final int iMinute = minute / Scene.getInstance().getTimeStep();
    final boolean reflectionMapOnly = Scene.getInstance().getOnlyReflectedEnergyInMirrorSolarMap();
    for (int x = 0; x < nx; x++) {
        for (int y = 0; y < ny; y++) {
            if (EnergyPanel.getInstance().isCancelled()) {
                throw new CancellationException();
            }
            final Vector3 u2 = u.multiply(xSpacing * (x + 0.5), null);
            final Vector3 v2 = v.multiply(ySpacing * (y + 0.5), null);
            final ReadOnlyVector3 p = mesh.getWorldTransform().applyForward(p0.add(v2, null).addLocal(u2)).addLocal(offset);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            if (dot > 0) {
                final PickResults pickResults = new PrimitivePickResults();
                for (final Spatial spatial : collidables) {
                    if (spatial != mesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    // for heat map generation
                    if (!reflectionMapOnly) {
                        data.dailySolarIntensity[x][y] += directRadiation;
                    }
                    // TODO: Edge losses are not considered yet
                    if (absorber != null) {
                        // TODO: This calculation is not exactly accurate as the collision detection assumes that the ray emits from a grid point on the reflector to
                        // the parallel position on the absorber tube -- without considering the actual direction of the reflected light
                        final Vector3 toAbsorber = absorber.subtract(p, null);
                        toAbsorber.setY(0);
                        final Ray3 rayToAbsorber = new Ray3(p, toAbsorber.normalize(null));
                        final PickResults pickResultsToAbsorber = new PrimitivePickResults();
                        for (final Spatial spatial : collidables) {
                            if (spatial != mesh) {
                                if (absorberCollisionMeshes == null || (absorberCollisionMeshes != null && !absorberCollisionMeshes.contains(spatial))) {
                                    PickingUtil.findPick(spatial, rayToAbsorber, pickResultsToAbsorber, false);
                                    if (pickResultsToAbsorber.getNumber() != 0) {
                                        // FIXME: how to stop the ray when it hits the absorber?
                                        break;
                                    }
                                }
                            }
                        }
                        if (pickResultsToAbsorber.getNumber() == 0) {
                            final double r = directRadiation * Atmosphere.getTransmittance(toAbsorber.length() * Scene.getInstance().getAnnotationScale() * 0.001, false);
                            reflector.getSolarPotential()[iMinute] += r * a;
                            if (reflectionMapOnly) {
                                data.dailySolarIntensity[x][y] += r;
                            }
                        }
                    }
                }
            }
        }
    }
}