计算两点之间的距离
double CalcPointDistance(const double &startX, const double &startY, const double &endX, const double &endY)
{
double dx = endX - startX;
double dy = endY - startY;
return sqrt(dx * dx + dy * dy);
}
double CalcPointDistance(const double &startX, const double &startY, const double &endX, const double &endY)
{
double dx = endX - startX;
double dy = endY - startY;
return sqrt(dx * dx + dy * dy);
}
