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Minor tweaks to IfcAlignment example

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This commit is contained in:
Richard Brice
2024-01-16 15:33:25 -08:00
parent f12c3aae09
commit f2f0000616
1 changed files with 41 additions and 33 deletions
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src/examples/IfcAlignment.cpp
+41 -33
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@@ -37,6 +37,46 @@ double to_radian(double deg) { return PI * deg / 180; }
#define Schema Ifc4x3_add2
// performs basic project setup including created the IfcProject object
// and initializing the project units to FEET
Schema::IfcProject* setup_project(IfcHierarchyHelper<Schema>& file) {
std::vector<std::string> file_description;
file_description.push_back("ViewDefinition[Alignment-basedReferenceView]");
file.header().file_description().description(file_description);
auto project = file.addProject();
project->setName(std::string("FHWA Bridge Geometry Manual Example Alignment"));
// set up project units for feet
// the call to file.addProject() sets up length units as millimeter.
auto units_in_context = project->UnitsInContext();
auto units = units_in_context->Units();
auto begin = units->begin();
auto iter = begin;
auto end = units->end();
for (; iter != end; iter++) {
auto unit = *iter;
if (unit->as<Schema::IfcSIUnit>() && unit->as<Schema::IfcSIUnit>()->UnitType() == Schema::IfcUnitEnum::IfcUnit_LENGTHUNIT) {
auto dimensions = new Schema::IfcDimensionalExponents(1, 0, 0, 0, 0, 0, 0);
file.addEntity(dimensions);
auto conversion_factor = new Schema::IfcMeasureWithUnit(new Schema::IfcLengthMeasure(304.80), unit->as<Schema::IfcSIUnit>());
file.addEntity(conversion_factor);
auto conversion_based_unit = new Schema::IfcConversionBasedUnit(dimensions, Schema::IfcUnitEnum::IfcUnit_LENGTHUNIT, "FEET", conversion_factor);
file.addEntity(conversion_based_unit);
units->remove(unit); // remove the millimeter unit
units->push(conversion_based_unit); // add the feet unit
units_in_context->setUnits(units); // update the UnitsInContext
break; // Done!, the length unit was found, so break out of the loop
}
}
return project;
}
// creates geometry and business logic segments for horizontal alignment tangent runs
std::pair<typename Schema::IfcCurveSegment*, typename Schema::IfcAlignmentSegment*> create_tangent(typename Schema::IfcCartesianPoint* p, double dir, double length) {
// geometry
@@ -161,39 +201,7 @@ void create_segment_representations(IfcHierarchyHelper<Schema>& file, Schema::If
int main() {
IfcHierarchyHelper<Schema> file;
std::vector<std::string> file_description;
file_description.push_back("ViewDefinition[Alignment-basedReferenceView]");
file.header().file_description().description(file_description);
auto project = file.addProject();
project->setName(std::string("FHWA Bridge Geometry Manual Example Alignment"));
// set up project units for feet
// the call to file.addProject() sets up length units as millimeter.
auto units_in_context = project->UnitsInContext();
auto units = units_in_context->Units();
auto begin = units->begin();
auto iter = begin;
auto end = units->end();
for (; iter != end; iter++) {
auto unit = *iter;
if (unit->as<Schema::IfcSIUnit>() && unit->as<Schema::IfcSIUnit>()->UnitType() == Schema::IfcUnitEnum::IfcUnit_LENGTHUNIT) {
auto dimensions = new Schema::IfcDimensionalExponents(1, 0, 0, 0, 0, 0, 0);
file.addEntity(dimensions);
auto conversion_factor = new Schema::IfcMeasureWithUnit(new Schema::IfcLengthMeasure(304.80), unit->as<Schema::IfcSIUnit>());
file.addEntity(conversion_factor);
auto conversion_based_unit = new Schema::IfcConversionBasedUnit(dimensions, Schema::IfcUnitEnum::IfcUnit_LENGTHUNIT, "FEET", conversion_factor);
file.addEntity(conversion_based_unit);
units->remove(unit); // remove the millimeter unit
units->push(conversion_based_unit); // add the feet unit
units_in_context->setUnits(units); // update the UnitsInContext
break; // Done!, the length unit was found, so break out of the loop
}
}
auto project = setup_project(file);
auto geometric_representation_context = file.getRepresentationContext(std::string("Model")); // creates the representation context if it doesn't already exist