Examples with Ray3 com.ardor3d.math.Ray3 used on opensource projects

Example 11 with Ray3

use of com.ardor3d.math.Ray3 in project energy3d by concord-consortium.

the class SelectUtil method pickPart.

public static PickedHousePart pickPart(final int x, final int y, final Class<?>[] typesOfHousePart) {
    pickResults.clear();
    final Ray3 pickRay = SceneManager.getInstance().getCamera().getPickRay(new Vector2(x, y), false, null);
    for (final Class<?> typeOfHousePart : typesOfHousePart) {
        if (typeOfHousePart == null) {
            PickingUtil.findPick(SceneManager.getInstance().getLand(), pickRay, pickResults, false);
        } else {
            for (final HousePart part : Scene.getInstance().getParts()) {
                if (!part.getLockEdit() && typeOfHousePart.isInstance(part)) {
                    PickingUtil.findPick(part.getCollisionSpatial(), pickRay, pickResults, false);
                }
            }
        }
    }
    final PickedHousePart picked = getPickResultForImportedMesh();
    if (picked != null) {
        return picked;
    }
    return getPickResult(pickRay);
}

Example 12 with Ray3

use of com.ardor3d.math.Ray3 in project energy3d by concord-consortium.

the class SelectUtil method pickPart.

public static PickedHousePart pickPart(final int x, final int y, final Mesh mesh) {
    pickResults.clear();
    final Ray3 pickRay = SceneManager.getInstance().getCamera().getPickRay(new Vector2(x, y), false, null);
    PickingUtil.findPick(mesh, pickRay, pickResults, false);
    final PickedHousePart picked = getPickResultForImportedMesh();
    if (picked != null) {
        return picked;
    }
    return getPickResult(pickRay);
}

Example 13 with Ray3

use of com.ardor3d.math.Ray3 in project energy3d by concord-consortium.

the class SolarRadiation method computeOnSolarPanel.

// a solar panel typically has 6x10 cells, 6 and 10 are not power of 2 for texture. so we need some special handling here
private void computeOnSolarPanel(final int minute, final ReadOnlyVector3 directionTowardSun, final SolarPanel panel) {
    if (panel.getTracker() != SolarPanel.NO_TRACKER) {
        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);
        panel.draw();
    }
    final ReadOnlyVector3 normal = panel.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    int nx = Scene.getInstance().getSolarPanelNx();
    int ny = Scene.getInstance().getSolarPanelNy();
    final Mesh drawMesh = panel.getRadiationMesh();
    final Mesh collisionMesh = (Mesh) panel.getRadiationCollisionSpatial();
    MeshDataStore data = onMesh.get(drawMesh);
    if (data == null) {
        data = initMeshTextureDataOnRectangle(drawMesh, 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 double indirectRadiation = calculateDiffuseAndReflectedRadiation(directionTowardSun, normal);
    final FloatBuffer vertexBuffer = drawMesh.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));
    // this is the longer side (supposed to be y)
    final double d10 = p1.distance(p0);
    // this is the shorter side (supposed to be x)
    final double d20 = p2.distance(p0);
    final Vector3 p10 = p1.subtract(p0, null).normalizeLocal();
    final Vector3 p20 = p2.subtract(p0, null).normalizeLocal();
    // generate the heat map first. this doesn't affect the energy calculation, it just shows the distribution of solar radiation on the panel.
    // 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)
    double xSpacing = d10 / nx;
    double ySpacing = d20 / ny;
    Vector3 u = p10;
    Vector3 v = p20;
    final int iMinute = minute / Scene.getInstance().getTimeStep();
    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 = drawMesh.getWorldTransform().applyForward(p0.add(v2, null).addLocal(u2)).addLocal(offset);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            // assuming that indirect (ambient or diffuse) radiation can always reach a grid point
            double radiation = indirectRadiation;
            if (dot > 0) {
                final PickResults pickResults = new PrimitivePickResults();
                for (final Spatial spatial : collidables) {
                    if (spatial != collisionMesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    radiation += directRadiation;
                }
            }
            data.dailySolarIntensity[x][y] += radiation;
        }
    }
    if (panel.isRotated()) {
        // landscape
        nx = panel.getNumberOfCellsInY();
        ny = panel.getNumberOfCellsInX();
    } else {
        // portrait
        nx = panel.getNumberOfCellsInX();
        ny = panel.getNumberOfCellsInY();
    }
    // 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 = panel.getPanelWidth() * panel.getPanelHeight() * Scene.getInstance().getTimeStep() / (nx * ny * 60.0);
    // swap the x and y back to correct order
    xSpacing = d20 / nx;
    ySpacing = d10 / ny;
    u = p20;
    v = p10;
    if (cellOutputs == null || cellOutputs.length != nx || cellOutputs[0].length != ny) {
        cellOutputs = new double[nx][ny];
    }
    // calculate the solar radiation first without worrying about the underlying cell wiring and distributed efficiency
    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 = drawMesh.getWorldTransform().applyForward(p0.add(v2, null).addLocal(u2)).addLocal(offset);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            // assuming that indirect (ambient or diffuse) radiation can always reach a grid point
            double radiation = indirectRadiation;
            if (dot > 0) {
                final PickResults pickResults = new PrimitivePickResults();
                for (final Spatial spatial : collidables) {
                    if (spatial != collisionMesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    radiation += directRadiation;
                }
            }
            cellOutputs[x][y] = radiation * a;
        }
    }
    final double airTemperature = Weather.getInstance().getOutsideTemperatureAtMinute(dailyAirTemperatures[1], dailyAirTemperatures[0], minute);
    double syseff;
    double output;
    // cell temperature
    double tcell;
    // Tcell = Tair + (NOCT - 20) / 80 * R, where the unit of R is mW/cm^2
    final double noctFactor = (panel.getNominalOperatingCellTemperature() - 20.0) * 100.0 / (a * 80.0);
    // now consider cell wiring and distributed efficiency (Nice demo at: https://www.youtube.com/watch?v=UNPJapaZlCU)
    switch(panel.getShadeTolerance()) {
        case // the most ideal assumption that probably doesn't exist in reality (just keep it here in case someone has a breakthrough in the future)
        SolarPanel.HIGH_SHADE_TOLERANCE:
            for (int x = 0; x < nx; x++) {
                for (int y = 0; y < ny; y++) {
                    output = cellOutputs[x][y];
                    tcell = airTemperature + output * noctFactor;
                    syseff = panel.getSystemEfficiency(tcell);
                    panel.getSolarPotential()[iMinute] += output * syseff;
                }
            }
            break;
        case // all the cells are connected in a single series, so the total output is (easily) determined by the minimum
        SolarPanel.NO_SHADE_TOLERANCE:
            double min = Double.MAX_VALUE;
            for (int x = 0; x < nx; x++) {
                for (int y = 0; y < ny; y++) {
                    output = cellOutputs[x][y];
                    tcell = airTemperature + output * noctFactor;
                    syseff = panel.getSystemEfficiency(tcell);
                    output *= syseff;
                    if (output < min) {
                        min = output;
                    }
                }
            }
            panel.getSolarPotential()[iMinute] += min * ny * nx;
            break;
        case // assuming each panel uses a diode bypass to connect two columns of cells
        SolarPanel.PARTIAL_SHADE_TOLERANCE:
            min = Double.MAX_VALUE;
            if (panel.isRotated()) {
                // landscape: nx = 10, ny = 6
                for (int y = 0; y < ny; y++) {
                    if (y % 2 == 0) {
                        // reset min every two columns of cells
                        min = Double.MAX_VALUE;
                    }
                    for (int x = 0; x < nx; x++) {
                        output = cellOutputs[x][y];
                        tcell = airTemperature + output * noctFactor;
                        syseff = panel.getSystemEfficiency(tcell);
                        output *= syseff;
                        if (output < min) {
                            min = output;
                        }
                    }
                    if (y % 2 == 1) {
                        panel.getSolarPotential()[iMinute] += min * nx * 2;
                    }
                }
            } else {
                // portrait: nx = 6, ny = 10
                for (int x = 0; x < nx; x++) {
                    if (x % 2 == 0) {
                        // reset min every two columns of cells
                        min = Double.MAX_VALUE;
                    }
                    for (int y = 0; y < ny; y++) {
                        output = cellOutputs[x][y];
                        tcell = airTemperature + output * noctFactor;
                        syseff = panel.getSystemEfficiency(tcell);
                        output *= syseff;
                        if (output < min) {
                            min = output;
                        }
                    }
                    if (x % 2 == 1) {
                        panel.getSolarPotential()[iMinute] += min * ny * 2;
                    }
                }
            }
            break;
    }
}

Example 14 with Ray3

use of com.ardor3d.math.Ray3 in project energy3d by concord-consortium.

the class SolarRadiation method computeOnSensor.

private void computeOnSensor(final int minute, final ReadOnlyVector3 directionTowardSun, final Sensor sensor) {
    final int nx = 2, ny = 2;
    // 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 = Sensor.WIDTH * Sensor.HEIGHT * Scene.getInstance().getTimeStep() / (nx * ny * 60.0);
    final ReadOnlyVector3 normal = sensor.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    final Mesh drawMesh = sensor.getRadiationMesh();
    final Mesh collisionMesh = (Mesh) sensor.getRadiationCollisionSpatial();
    MeshDataStore data = onMesh.get(drawMesh);
    if (data == null) {
        data = initMeshTextureDataOnRectangle(drawMesh, 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 double indirectRadiation = calculateDiffuseAndReflectedRadiation(directionTowardSun, normal);
    final FloatBuffer vertexBuffer = drawMesh.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));
    // 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 int iMinute = minute / Scene.getInstance().getTimeStep();
    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 = drawMesh.getWorldTransform().applyForward(p0.add(v2, null).addLocal(u2)).addLocal(offset);
            final Ray3 pickRay = new Ray3(p, directionTowardSun);
            // assuming that indirect (ambient or diffuse) radiation can always reach a grid point
            double radiation = indirectRadiation;
            if (dot > 0) {
                final PickResults pickResults = new PrimitivePickResults();
                for (final Spatial spatial : collidables) {
                    if (spatial != collisionMesh) {
                        PickingUtil.findPick(spatial, pickRay, pickResults, false);
                        if (pickResults.getNumber() != 0) {
                            break;
                        }
                    }
                }
                if (pickResults.getNumber() == 0) {
                    radiation += directRadiation;
                }
            }
            data.dailySolarIntensity[x][y] += radiation;
            sensor.getSolarPotential()[iMinute] += radiation * a;
        }
    }
}

Example 15 with Ray3

use of com.ardor3d.math.Ray3 in project energy3d by concord-consortium.

the class SolarRadiation method computeOnParabolicDish.

// Unlike PV solar panels, no indirect (ambient or diffuse) radiation should be included in reflection calculation. The mesh is a parabolic surface.
private void computeOnParabolicDish(final int minute, final ReadOnlyVector3 directionTowardSun, final ParabolicDish dish) {
    final int n = Scene.getInstance().getParabolicDishN();
    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);
    dish.draw();
    final ReadOnlyVector3 normal = dish.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    // n*n*60: n*n is to get the unit cell area of the nxn grid; 60 is to convert the unit of timeStep from minute to kWh
    final double a = 4 * dish.getRimRadius() * dish.getRimRadius() * Scene.getInstance().getTimeStep() / (n * n * 60.0);
    final Mesh mesh = dish.getRadiationMesh();
    MeshDataStore data = onMesh.get(mesh);
    if (data == null) {
        data = initMeshTextureDataOnRectangle(mesh, n, n);
    }
    final double dot = normal.dot(directionTowardSun);
    double directRadiation = 0;
    if (dot > 0) {
        directRadiation += calculateDirectRadiation(directionTowardSun, normal);
    }
    final double radius = dish.getRimRadius() / Scene.getInstance().getAnnotationScale();
    final double depth = dish.getRimRadius() * dish.getRimRadius() / (4 * dish.getFocalLength() * Scene.getInstance().getAnnotationScale());
    // center of the rim circle
    final Vector3 center = new Vector3(0, 0, depth);
    final Vector3 q = center.clone();
    final double spacing = 2 * radius / n;
    // as the parabolic dish always faces the sun, we only have to deal with its aperture plane (rim circle)
    final int iMinute = minute / Scene.getInstance().getTimeStep();
    for (int x = 0; x < n; x++) {
        for (int y = 0; y < n; y++) {
            if (EnergyPanel.getInstance().isCancelled()) {
                throw new CancellationException();
            }
            q.setX(spacing * (x + 0.5 * (1 - n)));
            q.setY(spacing * (y + 0.5 * (1 - n)));
            final ReadOnlyVector3 p = mesh.localToWorld(q, null);
            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 (for now, just use a square image for texture)
                    data.dailySolarIntensity[y][x] += directRadiation;
                    if (q.distanceSquared(center) < radius * radius) {
                        // sum all the solar energy up over all meshes and store in the foundation's solar potential array
                        dish.getSolarPotential()[iMinute] += directRadiation * a;
                    }
                }
            }
        }
    }
}