Examples with PrimitivePickResults com.ardor3d.intersection.PrimitivePickResults used on opensource projects

Example 16 with PrimitivePickResults

use of com.ardor3d.intersection.PrimitivePickResults in project energy3d by concord-consortium.

the class SolarRadiation method computeOnRack.

// TODO: we probably should handle the radiation heat map visualization on the rack using a coarse grid and the energy calculation using a fine grid
private void computeOnRack(final int minute, final ReadOnlyVector3 directionTowardSun, final Rack rack) {
    if (rack.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);
        rack.draw();
    }
    if (!rack.isMonolithic()) {
        return;
    }
    final ReadOnlyVector3 normal = rack.getNormal();
    if (normal == null) {
        throw new RuntimeException("Normal is null");
    }
    int nx = Scene.getInstance().getRackNx();
    int ny = Scene.getInstance().getRackNy();
    final Mesh drawMesh = rack.getRadiationMesh();
    final Mesh collisionMesh = (Mesh) rack.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 rack.
    // 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;
        }
    }
    // now do the calculation to get the total energy generated by the cells
    final double airTemperature = Weather.getInstance().getOutsideTemperatureAtMinute(dailyAirTemperatures[1], dailyAirTemperatures[0], minute);
    // system efficiency
    double syseff;
    // output at a cell center
    double output;
    // cell temperature
    double tcell;
    final SolarPanel panel = rack.getSolarPanel();
    if (Scene.getInstance().isRackModelExact()) {
        // exactly model each solar cell on each solar panel
        final int[] rc = rack.getSolarPanelRowAndColumnNumbers();
        // numbers of solar panels in x and y directions
        final int nxPanels = rc[0];
        final int nyPanels = rc[1];
        // numbers of solar cells on each panel in x and y directions
        int nxCells, nyCells;
        if (panel.isRotated()) {
            nxCells = panel.getNumberOfCellsInY();
            nyCells = panel.getNumberOfCellsInX();
        } else {
            nxCells = panel.getNumberOfCellsInX();
            nyCells = panel.getNumberOfCellsInY();
        }
        nx = nxCells * rc[0];
        ny = nyCells * rc[1];
        // get the area of a solar cell. 60 converts the unit of timeStep from minute to kWh
        final double a = panel.getPanelWidth() * panel.getPanelHeight() * Scene.getInstance().getTimeStep() / (panel.getNumberOfCellsInX() * panel.getNumberOfCellsInY() * 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;
            }
        }
        // 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. TODO: This is very inaccurate. The output depends on both cell wiring and panel wiring.
        switch(// the ideal case that probably doesn't exist in reality
        panel.getShadeTolerance()) {
            case 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);
                        rack.getSolarPotential()[iMinute] += output * syseff;
                    }
                }
                break;
            case // assuming that all the cells on a panel are connected in series and all panels are connected in parallel
            SolarPanel.NO_SHADE_TOLERANCE:
                double min = Double.MAX_VALUE;
                for (int ix = 0; ix < nxPanels; ix++) {
                    // panel by panel
                    for (int iy = 0; iy < nyPanels; iy++) {
                        min = Double.MAX_VALUE;
                        for (int jx = 0; jx < nxCells; jx++) {
                            // cell by cell on each panel
                            for (int jy = 0; jy < nyCells; jy++) {
                                output = cellOutputs[ix * nxCells + jx][iy * nyCells + jy];
                                tcell = airTemperature + output * noctFactor;
                                syseff = panel.getSystemEfficiency(tcell);
                                output *= syseff;
                                if (output < min) {
                                    min = output;
                                }
                            }
                        }
                        rack.getSolarPotential()[iMinute] += min * nxCells * nyCells;
                    }
                }
                break;
            case // assuming each panel uses a diode bypass to connect two columns of cells
            SolarPanel.PARTIAL_SHADE_TOLERANCE:
                for (int ix = 0; ix < nxPanels; ix++) {
                    // panel by panel
                    for (int iy = 0; iy < nyPanels; iy++) {
                        min = Double.MAX_VALUE;
                        if (panel.isRotated()) {
                            // landscape: nxCells = 10, nyCells = 6
                            for (int jy = 0; jy < nyCells; jy++) {
                                // cell by cell on each panel
                                if (jy % 2 == 0) {
                                    // reset min every two columns of cells
                                    min = Double.MAX_VALUE;
                                }
                                for (int jx = 0; jx < nxCells; jx++) {
                                    output = cellOutputs[ix * nxCells + jx][iy * nyCells + jy];
                                    tcell = airTemperature + output * noctFactor;
                                    syseff = panel.getSystemEfficiency(tcell);
                                    output *= syseff;
                                    if (output < min) {
                                        min = output;
                                    }
                                }
                                if (jy % 2 == 1) {
                                    rack.getSolarPotential()[iMinute] += min * 2 * nxCells;
                                }
                            }
                        } else {
                            // portrait: nxCells = 6, nyCells = 10
                            for (int jx = 0; jx < nxCells; jx++) {
                                // cell by cell on each panel
                                if (jx % 2 == 0) {
                                    // reset min every two columns of cells
                                    min = Double.MAX_VALUE;
                                }
                                for (int jy = 0; jy < nyCells; jy++) {
                                    output = cellOutputs[ix * nxCells + jx][iy * nyCells + jy];
                                    tcell = airTemperature + output * noctFactor;
                                    syseff = panel.getSystemEfficiency(tcell);
                                    output *= syseff;
                                    if (output < min) {
                                        min = output;
                                    }
                                }
                                if (jx % 2 == 1) {
                                    rack.getSolarPotential()[iMinute] += min * 2 * nyCells;
                                }
                            }
                        }
                    }
                }
                break;
        }
    } else {
        // for simulation speed, approximate rack model doesn't compute panel by panel and cell by cell
        ySpacing = xSpacing = Scene.getInstance().getRackCellSize() / Scene.getInstance().getAnnotationScale();
        // swap the x and y back to correct order
        nx = Math.max(2, (int) (d20 / xSpacing));
        ny = Math.max(2, (int) (d10 / ySpacing));
        // nx*ny*60: dividing the total rack area by nx*ny gets the unit cell area of the nx*ny grid; 60 converts the unit of timeStep from minute to kWh
        final double a = rack.getRackWidth() * rack.getRackHeight() * Scene.getInstance().getTimeStep() / (nx * ny * 60.0);
        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;
            }
        }
        // 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. TODO: This is very inaccurate. The output depends on both cell wiring and panel wiring.
        switch(panel.getShadeTolerance()) {
            case // the ideal case that probably doesn't exist in reality
            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);
                        rack.getSolarPotential()[iMinute] += output * syseff;
                    }
                }
                break;
            case 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;
                        }
                    }
                }
                rack.getSolarPotential()[iMinute] += min * ny * nx;
                break;
            case SolarPanel.PARTIAL_SHADE_TOLERANCE:
                for (int x = 0; x < nx; x++) {
                    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;
                        }
                    }
                    rack.getSolarPotential()[iMinute] += min * ny;
                }
                break;
        }
    }
}

Example 17 with PrimitivePickResults

use of com.ardor3d.intersection.PrimitivePickResults in project energy3d by concord-consortium.

the class Wall method findRoofIntersection.

public ReadOnlyVector3 findRoofIntersection(final ReadOnlyVector3 p, final ReadOnlyVector3 direction, final double offset) {
    if (roof == null) {
        return p;
    }
    final Vector3 origin = new Vector3(p.getX(), p.getY(), direction.equals(Vector3.UNIT_Z) ? 0 : p.getZ());
    final PickResults pickResults = new PrimitivePickResults();
    PickingUtil.findPick(roof.getRoofPartsRoot(), new Ray3(origin, direction), pickResults, false);
    if (pickResults.getNumber() > 0) {
        return pickResults.getPickData(0).getIntersectionRecord().getIntersectionPoint(0).add(direction.multiply(roof.getOverhangLength() > 0.05 ? offset : 0, null), null);
    } else {
        return p;
    }
}

Example 18 with PrimitivePickResults

use of com.ardor3d.intersection.PrimitivePickResults in project energy3d by concord-consortium.

the class HousePart method computeNormalAndKeepOnSurface.

protected ReadOnlyVector3 computeNormalAndKeepOnSurface() {
    if (container == null) {
        return null;
    }
    if (container instanceof Rack) {
        final Rack rack = (Rack) container;
        final PickResults pickResults = new PrimitivePickResults();
        final Ray3 ray = new Ray3(getAbsPoint(0).multiplyLocal(1, 1, 0), Vector3.UNIT_Z);
        PickingUtil.findPick(container.getCollisionSpatial(), ray, pickResults, false);
        if (pickResults.getNumber() != 0) {
            final PickData pickData = pickResults.getPickData(0);
            final Vector3 p = pickData.getIntersectionRecord().getIntersectionPoint(0);
            points.get(0).setZ(p.getZ());
        } else {
            if (rack.getBaseHeight() < Math.abs(0.5 * rack.getRackHeight() / Scene.getInstance().getAnnotationScale() * Math.sin(Math.toRadians(rack.getTiltAngle())))) {
                final Ray3 ray2 = new Ray3(getAbsPoint(0).multiplyLocal(1, 1, 0), Vector3.NEG_UNIT_Z);
                PickingUtil.findPick(container.getCollisionSpatial(), ray2, pickResults, false);
                if (pickResults.getNumber() != 0) {
                    final PickData pickData = pickResults.getPickData(0);
                    final Vector3 p = pickData.getIntersectionRecord().getIntersectionPoint(0);
                    points.get(0).setZ(p.getZ());
                }
            }
        }
        return rack.getNormal();
    } else if (container instanceof Roof) {
        final Roof roof = (Roof) container;
        final int[] editPointToRoofIndex = new int[points.size()];
        final PickResults pickResults = new PrimitivePickResults();
        for (int i = 0; i < points.size(); i++) {
            pickResults.clear();
            final Ray3 ray = new Ray3(getAbsPoint(i).multiplyLocal(1, 1, 0), Vector3.UNIT_Z);
            for (final Spatial roofPart : roof.getRoofPartsRoot().getChildren()) {
                if (roofPart.getSceneHints().getCullHint() != CullHint.Always) {
                    PickingUtil.findPick(((Node) roofPart).getChild(0), ray, pickResults, false);
                    if (pickResults.getNumber() != 0) {
                        break;
                    }
                }
            }
            if (pickResults.getNumber() != 0) {
                final PickData pickData = pickResults.getPickData(0);
                final Vector3 p = pickData.getIntersectionRecord().getIntersectionPoint(0);
                points.get(i).setZ(p.getZ());
                final UserData userData = (UserData) ((Spatial) pickData.getTarget()).getUserData();
                final int roofPartIndex = userData.getEditPointIndex();
                editPointToRoofIndex[i] = roofPartIndex;
            }
            // find roofPart with most edit points on it
            containerRoofIndex = editPointToRoofIndex[0];
            if (points.size() > 1) {
                containerRoofIndex = 0;
                final Map<Integer, Integer> counts = new HashMap<Integer, Integer>(points.size());
                for (final int roofIndex : editPointToRoofIndex) {
                    counts.put(roofIndex, counts.get(roofIndex) == null ? 1 : counts.get(roofIndex) + 1);
                }
                int highestCount = 0;
                for (final int roofIndex : editPointToRoofIndex) {
                    if (counts.get(roofIndex) > highestCount) {
                        highestCount = counts.get(roofIndex);
                        containerRoofIndex = roofIndex;
                    }
                }
            }
        }
        return (ReadOnlyVector3) roof.getRoofPartsRoot().getChild(containerRoofIndex).getUserData();
    } else if (container instanceof Foundation) {
        final Foundation foundation = (Foundation) container;
        final List<Node> nodes = foundation.getImportedNodes();
        if (nodes != null) {
            final Map<Vector3, ReadOnlyVector3> intersections = new HashMap<Vector3, ReadOnlyVector3>();
            final PickResults pickResults = new PrimitivePickResults();
            for (final Node n : nodes) {
                for (final Spatial s : n.getChildren()) {
                    if (s instanceof Mesh) {
                        final Mesh m = (Mesh) s;
                        pickResults.clear();
                        PickingUtil.findPick(m, new Ray3(getAbsPoint(0).multiplyLocal(1, 1, 0), Vector3.UNIT_Z), pickResults, false);
                        if (pickResults.getNumber() > 0) {
                            intersections.put(pickResults.getPickData(0).getIntersectionRecord().getIntersectionPoint(0), ((UserData) m.getUserData()).getNormal());
                        }
                    }
                }
            }
            if (!intersections.isEmpty()) {
                double zmax = -Double.MAX_VALUE;
                ReadOnlyVector3 normal = null;
                for (final Vector3 v : intersections.keySet()) {
                    if (v.getZ() > zmax) {
                        zmax = v.getZ();
                        normal = intersections.get(v);
                    }
                }
                if (normal != null) {
                    pickedNormal = normal;
                    return normal;
                }
            }
        }
    }
    return container.getNormal();
}