19979510856

Committed 06 Dec 2025 12:06AM UTC coverage: 87.255% (-1.9%) from 89.184%

Build # 19979510856

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Pull #89

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Merge 5cb7cfc67 into a73a760a4

Pull Request Pull Request #89: simulation_data changes to support UI-side constructions

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65.65

/coretrace/simulation_data/aperture.cpp


#include "aperture.hpp"
#include "simdata_io.hpp"

#include <algorithm>
#include <cmath>
#include <vector>

// #include <iostream>

#include "constants.hpp"

namespace SolTrace::Data {

aperture_ptr Aperture::make_aperture_from_type(ApertureType type,
                                               const std::vector<double> &args)
{
    // std::cout << "Type: " << type
    //           << " NArgs: " << args.size()
    //           << std::endl;
    switch (type)
    {
    case ApertureType::ANNULUS:
        if (args.size() < 3)
            break;
        return make_aperture<Annulus>(args[0], args[1], args[2]);
    case ApertureType::CIRCLE:
        if (args.size() < 1)
            break;
        return make_aperture<Circle>(args[0]);
    case ApertureType::HEXAGON:
        if (args.size() < 1)
            break;
        return make_aperture<Hexagon>(args[0]);
    case ApertureType::RECTANGLE:
        if (args.size() < 2)
            break;
        return make_aperture<Rectangle>(args[0], args[1]); // This is assuming centered around the origin
    case ApertureType::EQUILATERAL_TRIANGLE:
        if (args.size() < 1)
            break;
        return make_aperture<EqualateralTriangle>(args[0]);
    case ApertureType::SINGLE_AXIS_CURVATURE_SECTION:
        if (args.size() < 3)
            break;
        return make_aperture<Rectangle>(
            args[1] - args[0], args[2], 
            -0.5 * (args[1] - args[0]), -0.5 * args[2]);
        // return make_aperture<Rectangle>(args[1] - args[0], args[2]);
    case ApertureType::IRREGULAR_TRIANGLE:
        if (args.size() < 6)
            break;
        return make_aperture<IrregularTriangle>(
            args[0], args[1], args[2], args[3], args[4], args[5]);
    case ApertureType::IRREGULAR_QUADRILATERAL:
        if (args.size() < 8)
            break;
        return make_aperture<IrregularQuadrilateral>(
            args[0], args[1], args[2], args[3],
            args[4], args[5], args[6], args[7]);
    default:
        // TODO handle error
        // Unsupported case
        return nullptr;
        // break;
    }

    // TODO handle error
    // Wrong number of arguments

    return nullptr;
    // return aperture_ptr();
}

aperture_ptr Aperture::make_aperture_from_json(const nlohmann::ordered_json& jnode)
{
    if (!jnode.contains("aperture_type"))
        throw std::invalid_argument("Missing aperture_type");
    std::string type_str = jnode.at("aperture_type");
    ApertureType aperture_type = get_enum_from_string(type_str, ApertureTypeMap, ApertureType::APERTURE_UNKNOWN);
    switch (aperture_type)
    {
        case ApertureType::ANNULUS:                return make_aperture<Annulus>(jnode);
        case ApertureType::CIRCLE:                 return make_aperture<Circle>(jnode);
        case ApertureType::HEXAGON:                return make_aperture<Hexagon>(jnode);
        case ApertureType::RECTANGLE:              return make_aperture<Rectangle>(jnode);
        case ApertureType::EQUILATERAL_TRIANGLE:   return make_aperture<EqualateralTriangle>(jnode);
        case ApertureType::IRREGULAR_TRIANGLE:     return make_aperture<IrregularTriangle>(jnode);
        case ApertureType::IRREGULAR_QUADRILATERAL:return make_aperture<IrregularQuadrilateral>(jnode);
        default:
            throw std::invalid_argument("Unsupported aperture_type: " + type_str);
    }
}

Annulus::Annulus(const nlohmann::ordered_json& jnode) 
    : Aperture(ApertureType::ANNULUS)
{
    this->inner_radius = jnode.at("inner_radius");
    this->outer_radius = jnode.at("outer_radius");
    this->arc_angle = jnode.at("arc_angle");
}

Aperture::Point Aperture::midpoint(const Aperture::Point& v0,
                                   const Aperture::Point& v1) const {
    return Aperture::Point((v0.x + v1.x) / 2, (v0.y + v1.y) / 2);
}
std::vector<Aperture::Triangle> Aperture::subdivide(Aperture::Triangle tri,
                                                    int n) const {
    Point                 v0  = tri.a;
    Point                 v1  = tri.b;
    Point                 v2  = tri.c;
    Point                 m01 = midpoint(v0, v1);
    Point                 m12 = midpoint(v1, v2);
    Point                 m20 = midpoint(v2, v0);
    std::vector<Triangle> result;
    if (n - 1 == 0) {
        result.push_back(Triangle(v0, m01, m20));
        result.push_back(Triangle(m01, v1, m12));
        result.push_back(Triangle(m12, m01, m20));
        result.push_back(Triangle(m12, m20, v2));
        return result;
    }
    auto t1 = subdivide(Triangle(v0, m01, m20), n - 1);
    auto t2 = subdivide(Triangle(v0, m01, m20), n - 1);
    auto t3 = subdivide(Triangle(v0, m01, m20), n - 1);
    auto t4 = subdivide(Triangle(v0, m01, m20), n - 1);
    result.insert(result.end(), t1.begin(), t1.end());
    result.insert(result.end(), t2.begin(), t2.end());
    result.insert(result.end(), t3.begin(), t3.end());
    result.insert(result.end(), t4.begin(), t4.end());
    return result;
}
int Aperture::index_of(std::vector<Aperture::Point>& v,
                       const Aperture::Point&        p) const {
    auto it = find(v.begin(), v.end(), p);
    if (it == v.end()) {
        v.push_back(p);
        return v.size() - 1;
    }
    return std::distance(v.begin(), it);
}
std::tuple<std::vector<double>, std::vector<int>> Aperture::indexed_triangles(
    const std::vector<Aperture::Triangle>& triangles) const {
    std::vector<int>    indices;
    std::vector<Point>  points;
    std::vector<double> flattened;
    for (const Triangle& tri : triangles) {
        indices.push_back(index_of(points, tri.a));
        indices.push_back(index_of(points, tri.b));
        indices.push_back(index_of(points, tri.c));
    }
    for (const Point& p : points) {
        flattened.push_back(p.x);
        flattened.push_back(p.y);
    }
    return std::make_pair(flattened, indices);
}

double Annulus::aperture_area() const
{
    // TODO: input.cpp on line 219 uses the formula
    //    elm->ParameterC*(ACOSM1O180)*(elm->ParameterB - elm->ParameterA);
    //    = \theta * (r - R)
    // This seems to be wrong...
    double R = this->outer_radius;
    double r = this->inner_radius;
    // Convert to radians
    double arc = this->arc_angle * D2R;
    return 0.5 * arc * (R * R - r * r);
}

double Annulus::diameter_circumscribed_circle() const
{
    return 2.0 * this->outer_radius;
}

bool Annulus::is_in(double x, double y) const
{
    double r = sqrt(x * x + y * y);
    bool inside = false;
    if (this->inner_radius <= r &&
        r <= this->outer_radius)
    {
        double theta = atan2(y, x);
        // Arc is split across x-axis, hence the 0.5
        double arc = 0.5 * this->arc_angle * D2R;
        inside = (-arc <= theta && theta <= arc);
    }
    return inside;
}

std::tuple<std::vector<double>, std::vector<int>>
Annulus::triangulation() const {
    const int           resolution = 32;
    std::vector<double> verts;
    std::vector<int>    indices;
    for (int i = 0; i <= resolution; i++) {
        const double u = i / resolution * PI * 2;
        verts.push_back(inner_radius * std::cos(u));
        verts.push_back(inner_radius * std::sin(u));
        verts.push_back(outer_radius * std::cos(u));
        verts.push_back(outer_radius * std::sin(u));
    }
    for (int i = 0; i < resolution - 3; i += 2) {
        const int a = i;
        const int b = i + 1;
        const int c = i + 2;
        const int d = i + 3;
        // Generate two triangles for each quad in the mesh
        // Adjust order to be counter-clockwise
        indices.push_back(a);
        indices.push_back(d);
        indices.push_back(b);
        indices.push_back(b);
        indices.push_back(d);
        indices.push_back(c);
    }
    return std::make_tuple(verts, indices);
}

aperture_ptr Annulus::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<Annulus>(*this);
}

void Annulus::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::ANNULUS;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["inner_radius"] = this->inner_radius;
    jnode["outer_radius"] = this->outer_radius;
    jnode["arc_angle"] = this->arc_angle;
}

Circle::Circle(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::CIRCLE)
{
    this->diameter = jnode.at("diameter");
}

double Circle::aperture_area() const
{
    return 0.25 * PI * this->diameter * this->diameter;
}

double Circle::diameter_circumscribed_circle() const
{
    return this->diameter;
}

bool Circle::is_in(double x, double y) const
{
    double r = sqrt(x * x + y * y);
    return r <= this->radius_circumscribed_circle();
}

aperture_ptr Circle::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<Circle>(*this);
}

void Circle::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::CIRCLE;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["diameter"] = this->diameter;
}

EqualateralTriangle::EqualateralTriangle(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::EQUILATERAL_TRIANGLE)
{
    this->circumscribe_diameter = jnode.at("circumscribe_diameter");
}

std::tuple<std::vector<double>, std::vector<int>>
Circle::triangulation() const {
    // Using a fixed Delaunay triangulation of the unit circle
    std::vector<double> verts = {
        1.00000000e+00,  0.00000000e+00,  9.51056516e-01,  3.09016994e-01,
        8.09016994e-01,  5.87785252e-01,  5.87785252e-01,  8.09016994e-01,
        3.09016994e-01,  9.51056516e-01,  6.12323400e-17,  1.00000000e+00,
        -3.09016994e-01, 9.51056516e-01,  -5.87785252e-01, 8.09016994e-01,
        -8.09016994e-01, 5.87785252e-01,  -9.51056516e-01, 3.09016994e-01,
        -1.00000000e+00, 1.22464680e-16,  -9.51056516e-01, -3.09016994e-01,
        -8.09016994e-01, -5.87785252e-01, -5.87785252e-01, -8.09016994e-01,
        -3.09016994e-01, -9.51056516e-01, -1.83697020e-16, -1.00000000e+00,
        3.09016994e-01,  -9.51056516e-01, 5.87785252e-01,  -8.09016994e-01,
        8.09016994e-01,  -5.87785252e-01, 9.51056516e-01,  -3.09016994e-01,
        0.00000000e+00,  0.00000000e+00,  -5.00000000e-01, -5.00000000e-01,
        -5.00000000e-01, 0.00000000e+00,  -5.00000000e-01, 5.00000000e-01,
        0.00000000e+00,  -5.00000000e-01, 0.00000000e+00,  5.00000000e-01,
        5.00000000e-01,  -5.00000000e-01, 5.00000000e-01,  0.00000000e+00,
        5.00000000e-01,  5.00000000e-01
    };
    std::vector<int> indices = {
        22, 11, 21, 11, 22, 10, 17, 18, 26, 14, 24, 21, 13, 14, 21, 24, 14, 15,
        25, 6,  23, 6,  25, 5,  9,  22, 23, 8,  9,  23, 22, 9,  10, 27, 1,  28,
        1,  27, 0,  19, 27, 26, 18, 19, 26, 27, 19, 0,  4,  25, 28, 3,  4,  28,
        25, 4,  5,  12, 13, 21, 11, 12, 21, 24, 16, 26, 16, 17, 26, 16, 24, 15,
        7,  8,  23, 6,  7,  23, 2,  3,  28, 1,  2,  28, 24, 22, 21, 22, 24, 20,
        24, 27, 20, 27, 24, 26, 25, 22, 20, 22, 25, 23, 27, 25, 20, 25, 27, 28
    };
    // scale from the unit cirle to our circle
    std::transform(
        verts.begin(), verts.end(), verts.begin(), [this](double element) {
            return element *= this->diameter / 2.0;
        });
    return std::make_tuple(verts, indices);
}

double EqualateralTriangle::aperture_area() const
{
    double r = 0.5 * this->circumscribe_diameter;
    return 0.75 * sqrt(3) * r * r;
}

double EqualateralTriangle::diameter_circumscribed_circle() const
{
    return this->circumscribe_diameter;
}

bool EqualateralTriangle::is_in(double x, double y) const
{
    double r = sqrt(x * x + y * y);
    double ro = this->radius_circumscribed_circle();
    if (r > ro)
        return false;

    double ri = 0.5 * ro;
    if (r <= ri)
        return true;

    double y0;
    // double a = ro / sqrt(3.0) = 2 * ri / sqrt(3.0);
    if (0.0 <= x && x <= ro)
    {
        // y0 = -sqrt(3.0) * (x - a);
        y0 = ro - sqrt(3.0) * x;
        return (-ri <= y && y <= y0);
    }
    else if (-ro <= x && x < 0.0)
    {
        // y0 = sqrt(3.0) * (x + a);
        y0 = sqrt(3.0) * x + ro;
        return (-ri <= y && y <= y0);
    }

    return false;
}

std::tuple<std::vector<double>, std::vector<int>>
EqualateralTriangle::triangulation() const {
    double   r = circumscribe_diameter / 2.0;
    Triangle tri(Point(0, r),
                 Point(r * cos(-PI / 6.0), r * sin(-PI / 6.0)),
                 Point(r * cos(7 * PI / 6.0), r * sin(7 * PI / 6.0)));
    return indexed_triangles(subdivide(tri, 3));
}

aperture_ptr EqualateralTriangle::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<EqualateralTriangle>(*this);
}

void EqualateralTriangle::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::EQUILATERAL_TRIANGLE;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["circumscribe_diameter"] = this->circumscribe_diameter;
}

Hexagon::Hexagon(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::HEXAGON)
{
    this->circumscribe_diameter = jnode.at("circumscribe_diameter");
}

double Hexagon::aperture_area() const
{
    // TODO: input.cpp on line 210 uses the formula
    //    5*sqr(elm->ParameterA/2.0)*cos(30.0*(ACOSM1O180))*sin(30.0*(ACOSM1O180));
    //    = 5*(d/2)^2*cos(pi/6)*sin(pi/6)
    //    = 5*(d/2)^2*sqrt(3)/2*1/2
    //    = 5*sqrt(3)/4 * (d/2)^2
    //    = 1.25*sqrt(3) * (d/2)^2
    // This seems to be wrong...
    double r = 0.5 * this->circumscribe_diameter;
    return 1.5 * sqrt(3) * r * r;
}

double Hexagon::diameter_circumscribed_circle() const
{
    return circumscribe_diameter;
}

bool Hexagon::is_in(double x, double y) const
{
    double r = sqrt(x * x + y * y);
    double ro = this->radius_circumscribed_circle();
    if (r > ro)
        return false;

    double ri = 0.5 * sqrt(3.0) * ro;
    if (r <= ri)
        return true;

    // NOTE: Old code used
    //    xl = sqrt(ro^2 - ri^2)
    // where `ro` is the radius of the circumscribing circle and `ri` is
    // the radius of the inscribing circle. But this is equivalent to
    //    xl = 0.5 * ro

    double xl = 0.5 * this->radius_circumscribed_circle();
    double y1, y2;
    if (xl < x && x <= ro)
    {
        y1 = sqrt(3.0) * (x - ro);
        y2 = -y1;
        // if (y1 <= y && y <= y2) return true;
        return (y1 <= y && y <= y2);
    }
    else if (-xl <= x && x <= xl)
    {
        return (-ri <= y && y <= ri);
    }
    else if (-ro <= x && x < -xl)
    {
        y1 = sqrt(3.0) * (x + ro);
        y2 = -y1;
        return (y2 <= y && y <= y1);
    }

    return false;
}

std::tuple<std::vector<double>, std::vector<int>>
Hexagon::triangulation() const {
    double                r = circumscribe_diameter / 2.0;
    std::vector<Triangle> t0 =
        subdivide(Triangle(Point(0, 0),
                           Point(r * cos(PI / 3.0), r * sin(PI / 3.0)),
                           Point(r, 0)),
                  2);
    std::vector<Triangle> t1 = subdivide(
        Triangle(Point(0, 0),
                 Point(r * cos(2 * PI / 3.0), r * sin(2 * PI / 3.0)),
                 Point(r * cos(PI / 3.0), r * sin(PI / 3.0))),
        2);
    std::vector<Triangle> t2 = subdivide(
        Triangle(Point(0, 0),
                 Point(-r, 0),
                 Point(r * cos(2 * PI / 3.0), r * sin(2 * PI / 3.0))),
        2);
    std::vector<Triangle> t3 = subdivide(
        Triangle(Point(0, 0),
                 Point(-r, 0),
                 Point(r * cos(4 * PI / 3.0), r * sin(4 * PI / 3.0))),
        2);
    std::vector<Triangle> t4 = subdivide(
        Triangle(Point(0, 0),
                 Point(r * cos(5 * PI / 3.0), r * sin(5 * PI / 3.0)),
                 Point(r * cos(4 * PI / 3.0), r * sin(4 * PI / 3.0))),
        2);
    std::vector<Triangle> t5 = subdivide(
        Triangle(Point(0, 0),
                 Point(r, 0),
                 Point(r * cos(5 * PI / 3.0), r * sin(5 * PI / 3.0))),
        2);
    std::vector<Triangle> triangles;
    triangles.insert(triangles.end(), t0.begin(), t0.end());
    triangles.insert(triangles.end(), t1.begin(), t1.end());
    triangles.insert(triangles.end(), t2.begin(), t2.end());
    triangles.insert(triangles.end(), t3.begin(), t3.end());
    triangles.insert(triangles.end(), t4.begin(), t4.end());
    triangles.insert(triangles.end(), t5.begin(), t5.end());
    return indexed_triangles(triangles);
}

aperture_ptr Hexagon::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<Hexagon>(*this);
}

void Hexagon::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::HEXAGON;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["circumscribe_diameter"] = this->circumscribe_diameter;
}

IrregularTriangle::IrregularTriangle(double x1, double y1,
                                     double x2, double y2,
                                     double x3, double y3)
    : Aperture(ApertureType::IRREGULAR_TRIANGLE),
      x1(x1), y1(y1),
      x2(x2), y2(y2),
      x3(x3), y3(y3)
{
}

IrregularTriangle::IrregularTriangle(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::IRREGULAR_TRIANGLE)
{
    this->x1 = jnode.at("x1");
    this->y1 = jnode.at("y1");
    this->x2 = jnode.at("x2");
    this->y2 = jnode.at("y2");
    this->x3 = jnode.at("x3");
    this->y3 = jnode.at("y3");
}

std::tuple<std::vector<double>, std::vector<int>>
IrregularTriangle::triangulation() const {
    Triangle tri(Point(x1, y1), Point(x2, y2), Point(x3, y3));
    return indexed_triangles(subdivide(tri, 3));
}

double IrregularTriangle::aperture_area() const
{
    double v11 = this->x1 - this->x2;
    double v12 = this->y1 - this->y2;
    double v21 = this->x3 - this->x2;
    double v22 = this->y3 - this->y2;

    double v1m = sqrt(v11 * v11 + v12 * v12);
    double v2m = sqrt(v21 * v21 + v22 * v22);

    double theta = acos((v11 * v21 + v12 * v22) / (v1m * v2m));
    double area = 0.5 * v1m * v2m * sin(theta);

    return area;
}

double IrregularTriangle::diameter_circumscribed_circle() const
{
    // TODO: Not sure this is exact. Is that a problem?
    double xmax = std::max(std::max(x1, x2), x3);
    double ymax = std::max(std::max(y1, y2), y3);
    double xmin = std::min(std::min(x1, x2), x3);
    double ymin = std::min(std::min(y1, y2), y3);
    double dx = xmax - xmin;
    double dy = ymax - ymin;
    return sqrt(dx * dx + dy * dy);
}

bool IrregularTriangle::is_in(double x, double y) const
{
    return intri(x1, y1, x2, y2, x3, y3, x, y);
}

aperture_ptr IrregularTriangle::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<IrregularTriangle>(*this);
}

void IrregularTriangle::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::IRREGULAR_TRIANGLE;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["x1"] = this->x1;
    jnode["y1"] = this->y1;
    jnode["x2"] = this->x2;
    jnode["y2"] = this->y2;
    jnode["x3"] = this->x3;
    jnode["y3"] = this->y3;
}

IrregularQuadrilateral::IrregularQuadrilateral(double x1, double y1,
                                               double x2, double y2,
                                               double x3, double y3,
                                               double x4, double y4)
    : Aperture(ApertureType::IRREGULAR_QUADRILATERAL),
      x1(x1), y1(y1),
      x2(x2), y2(y2),
      x3(x3), y3(y3),
      x4(x4), y4(y4)
{
}

IrregularQuadrilateral::IrregularQuadrilateral(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::IRREGULAR_QUADRILATERAL)
{
    this->x1 = jnode.at("x1");
    this->y1 = jnode.at("y1");
    this->x2 = jnode.at("x2");
    this->y2 = jnode.at("y2");
    this->x3 = jnode.at("x3");
    this->y3 = jnode.at("y3");
    this->x4 = jnode.at("x4");
    this->y4 = jnode.at("y4");
}

double IrregularQuadrilateral::aperture_area() const
{
    double v11 = this->x1 - this->x2;
    double v12 = this->y1 - this->y2;
    double v21 = this->x3 - this->x2;
    double v22 = this->y3 - this->y2;
    double v31 = this->x3 - this->x4;
    double v32 = this->y3 - this->y4;
    double v41 = this->x1 - this->x4;
    double v42 = this->y1 - this->y4;

    double v1m = sqrt(v11 * v11 + v12 * v12);
    double v2m = sqrt(v21 * v21 + v22 * v22);
    double v3m = sqrt(v31 * v31 + v32 * v32);
    double v4m = sqrt(v41 * v41 + v42 * v42);

    double theta1 = acos((v11 * v21 + v12 * v22) / (v1m * v2m));
    double theta2 = acos((v31 * v41 + v32 * v42) / (v3m * v4m));

    double area = 0.5 * (v1m * v2m * sin(theta1) + v3m * v4m * sin(theta2));
    return area;
}

std::tuple<std::vector<double>, std::vector<int>>
IrregularQuadrilateral::triangulation() const {
    std::vector<Triangle> t0 =
        subdivide(Triangle(Point(x1, y1), Point(x3, y3), Point(x2, y2)), 2);
    std::vector<Triangle> t1 =
        subdivide(Triangle(Point(x1, y1), Point(x4, y4), Point(x3, y3)), 2);
    std::vector<Triangle> triangles;
    triangles.insert(triangles.end(), t0.begin(), t0.end());
    triangles.insert(triangles.end(), t1.begin(), t1.end());
    return indexed_triangles(triangles);
}

double IrregularQuadrilateral::diameter_circumscribed_circle() const
{
    // TODO: Not sure this is exact. Is that a problem?
    double xmax = std::max(std::max(x1, x2), std::max(x3, x4));
    double ymax = std::max(std::max(y1, y2), std::max(y3, y4));
    double xmin = std::min(std::min(x1, x2), std::min(x3, x4));
    double ymin = std::min(std::min(y1, y2), std::min(y3, y4));
    double dx = xmax - xmin;
    double dy = ymax - ymin;
    return sqrt(dx * dx + dy * dy);
}

bool IrregularQuadrilateral::is_in(double x, double y) const
{
    return inquad(x1, y1, x2, y2, x3, y3, x4, y4, x, y);
}

aperture_ptr IrregularQuadrilateral::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<IrregularQuadrilateral>(*this);
}

void IrregularQuadrilateral::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::IRREGULAR_QUADRILATERAL;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["x1"] = this->x1;
    jnode["y1"] = this->y1;
    jnode["x2"] = this->x2;
    jnode["y2"] = this->y2;
    jnode["x3"] = this->x3;
    jnode["y3"] = this->y3;
    jnode["x4"] = this->x4;
    jnode["y4"] = this->y4;
}

Rectangle::Rectangle(double xlen, double ylen)
    : Aperture(ApertureType::RECTANGLE),
      x_length(xlen),
      y_length(ylen)
{
    // Default to rectangle centered at the origin.
    this->x_coord = -0.5 * this->x_length;
    this->y_coord = -0.5 * this->y_length;
    return;
}

Rectangle::Rectangle(const nlohmann::ordered_json& jnode)
    : Aperture(ApertureType::RECTANGLE)
{
    this->x_length = jnode.at("x_length");
    this->y_length = jnode.at("y_length");
    this->x_coord = jnode.at("x_coord");
    this->y_coord = jnode.at("y_coord");
}

double Rectangle::aperture_area() const
{
    return this->x_length * this->y_length;
}

double Rectangle::diameter_circumscribed_circle() const
{
    return sqrt(x_length * x_length + y_length * y_length);
}

aperture_ptr Rectangle::make_copy() const
{
    // Invokes the implicit copy constructor
    return make_aperture<Rectangle>(*this);
}

bool Rectangle::is_in(double x, double y) const
{
    double xl = this->x_coord;
    double yl = this->y_coord;
    double xu = xl + this->x_length;
    double yu = yl + this->y_length;
    return (xl <= x && x <= xu && yl <= y && y <= yu);
}

Rectangle::Rectangle(double xlen, double ylen, double xl, double yl)
    : Aperture(ApertureType::RECTANGLE),
      x_length(xlen),
      y_length(ylen),
      x_coord(xl),
      y_coord(yl)
{
}

void Rectangle::write_json(nlohmann::ordered_json& jnode) const
{
    ApertureType type = ApertureType::RECTANGLE;
    jnode["aperture_type"] = ApertureTypeMap.at(type);
    jnode["x_length"] = this->x_length;
    jnode["y_length"] = this->y_length;
    jnode["x_coord"] = this->x_coord;
    jnode["y_coord"] = this->y_coord;
}


std::tuple<std::vector<double>, std::vector<int>>
Rectangle::triangulation() const {
    const int           segments = 5;
    std::vector<double> verts;
    std::vector<int>    indices;
    for (int i = 0; i <= segments; ++i) {
        for (int j = 0; j <= segments; ++j) {
            const double x = i * x_length / segments + x_coord;
            const double y = j * y_length / segments + y_coord;
            verts.push_back(x);
            verts.push_back(y);
        }
    }
    for (int i = 0; i < segments; ++i) {
        for (int j = 0; j < segments; ++j) {
            const int a = (segments + 1) * i + j;
            const int c = (segments + 1) * (i + 1) + j;
            const int d = (segments + 1) * (i + 1) + j + 1;
            const int b = (segments + 1) * i + j + 1;
            // Generate two triangles for each quad in the mesh
            // Adjust order to be counter-clockwise
            indices.push_back(a);
            indices.push_back(c);
            indices.push_back(b);
            indices.push_back(b);
            indices.push_back(c);
            indices.push_back(d);
        }
    }
    return make_pair(verts, indices);
}

bool intri(double x1, double y1,
           double x2, double y2,
           double x3, double y3,
           double xt, double yt)
{
    double a = (x1 - xt) * (y2 - yt) - (x2 - xt) * (y1 - yt);
    double b = (x2 - xt) * (y3 - yt) - (x3 - xt) * (y2 - yt);
    double c = (x3 - xt) * (y1 - yt) - (x1 - xt) * (y3 - yt);
    return (std::signbit(a) == std::signbit(b) &&
            std::signbit(b) == std::signbit(c));
    // return (sign(a) == sign(b) && sign(b) == sign(c));
}

bool inquad(double x1, double y1,
            double x2, double y2,
            double x3, double y3,
            double x4, double y4,
            double xt, double yt)
{
    return (intri(x1, y1, x2, y2, x3, y3, xt, yt) ||
            intri(x1, y1, x3, y3, x4, y4, xt, yt));
}

} // namespace SolTrace::Data

NREL / SolTrace / 19979510856

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