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Berechnung der Oberfläche von TopoDS_Face in OpenCASCADE

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Um die Oberfläche eines TopoDS_Face in OpenCASCADE zu berechnen, verwende einfach BRepGProp::SurfaceProperties und rufe .Mass() auf dem resultierenden GProp_GProps-Objekt auf:

surface_area_example.cpp
GProp_GProps gprops;
BRepGProp::SurfaceProperties(face, gprops); // Speichert Ergebnisse in gprops
double area = gprops.Mass();

Alternatively, you can use my OCCUtils library which also also providers a lot of other utility functions:

surface_area_header_example.cpp
#include <occutils/Surface.hxx>
using namespace OCCUtils;

double Surface::Area(const TopoDS_Shape& face);

Beispiel:

surface_area_usage_example.cpp
#include <occutils/Surface.hxx>

using namespace OCCUtils;

// ...
double area = Surface::Area(myFace);
// ...
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