如何在 OpenCASCADE 中计算 TopoDS_Shape / TopoDS_Solid 的体积

OCCUtils 提供了执行此操作的便捷函数：

shape_volume_occ.cpp

#include <occutils/Shape.hxx>

using namespace OCCUtils;

TopoDS_Shape myShape = /* ... */;

double volume = Shape::Volume(myShape);

#include <occutils/Shape.hxx>

using namespace OCCUtils;

TopoDS_Shape myShape = /* ... */;

double volume = Shape::Volume(myShape);

如果你需要在没有 OCCUtils 的情况下执行此操作，使用

shape_volume_manual.cpp

GProp_GProps gprops;
BRepGProp::VolumeProperties(shape, gprops);
double volume = gprops.Mass();

GProp_GProps gprops;
BRepGProp::VolumeProperties(shape, gprops);
double volume = gprops.Mass();

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