在 OpenCASCADE 中计算 gp_Pnt 和 gp_Ax1 之间的距离
OCCUtils 提供了计算两个方向的正交方向的便捷函数：
axis_distance.cpp
#include <occutils/Axis.hxx>
using namespace OCCUtils;
gp_Ax1 axis = /* ... */;
gp_Pnt pnt = /* ... */;
double distance = Axis::Distance(axis, pnt);或者，你也可以使用 Point::Distance()，它内部只是调用 Axis::Distance()，但在某些情况下可能使你的代码更易读。注意参数顺序是反转的！
point_distance.cpp
#include <occutils/Point.hxx>
using namespace OCCUtils;
gp_Ax1 axis = /* ... */;
gp_Pnt pnt = /* ... */;
double distance = Point::Distance(pnt, axis);如果你不能使用 OCCUtils，这里是手动执行的代码：
manual_distance.cpp
double distance = gp_Lin(axis).Distance(pnt);Check out similar posts by category:
C/C++, OpenCASCADE
If this post helped you, please consider buying me a coffee or donating via PayPal to support research & publishing of new posts on TechOverflow