Function main

src/examples/IfcSimplifiedAlignment.cpp:81–164

}

int main() {
    IfcHierarchyHelper<Schema> file;

    auto project = setup_project(file);

    //
    // Define horizontal alignment
    //

    // PI Data
    // B.1.1 pg 211
    std::vector<std::pair<double, double>> points{
        { 500.0, 2500.0}, // beginning
        {3340.0,  660.0}, // Point of intersection (PI), Curve #1
        {4340.0, 5000.0}, // Point of intersection (PI), Curve #2
        {7600.0, 4560.0}, // Point of intersection (PI), Curve #3
        {8480.0, 2010.0}  // ending
    };

    // Curve Data
    // B.1.3 pg 212
    std::vector<double> radii{ 1000,1250,950 };

    //
    // Define vertical profile segments
    //

    // Vertical Profile Data
    // Figure B.2 pg 213
    double xStart = 10000.0; // subtract xStart so the points are distance along, not station
    std::vector<std::pair<double,double>> vpoints {
        {10000.0-xStart,100.0}, // Vertical point of beginning (VPOB)
        {12000.0-xStart,135.0}, // Point of vertical intersection (VPI), Curve #1
        {15000.0-xStart,105.0}, // Point of vertical intersection (VPI), Curve #2
        {17400.0-xStart,153.0}, // Point of vertical intersection (VPI), Curve #3
        {19800.0-xStart,105.0}, // Point of vertical intersection (VPI), Curve #4
        {22800.0-xStart, 90.0}  // Vertical poitn of ending (VPOE)
    };

    // Vertical Curve Lengths
    // Figure B.2 pg 213
    std::vector<double> vclengths{1600.0, 1200.0, 2000.0, 800.0};

    // Use utility function to create alignment
    auto alignment = addAlignment(file, "Example Alignment", points, radii, vpoints, vclengths);

    // Define the alignment's relationship with the project

    // IFC 4.1.4.1.1 "Every IfcAlignment must be related to IfcProject using the IfcRelAggregates relationship"
    // https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/HTML/concepts/Object_Composition/Aggregation/Alignment_Aggregation_To_Project/content.html
    // IfcProject <-> IfcRelAggregates <-> IfcAlignment
    typename aggregate_of<typename Schema::IfcObjectDefinition>::ptr list_of_alignments_in_project(new aggregate_of<typename Schema::IfcObjectDefinition>());
    list_of_alignments_in_project->push(alignment);
    auto aggregate_alignments_with_project = new Schema::IfcRelAggregates(IfcParse::IfcGlobalId(), nullptr, std::string("Alignments in project"), boost::none, project, list_of_alignments_in_project);
    file.addEntity(aggregate_alignments_with_project);

    // Define the spatial structure of the alignment with respect to the site