开发平台(Platform): (Ex: VC++, GCC, Linux, ...)
VC++
https://github.com/OSVR/OSVR-Core/blob/master/plugins/videoimufusion/VideoIMUFusion.cpp
上面网址的156 行
StartupData()
: last(getNow()), positionFilter(filters::one_euro::Params{}),
orientationFilter(filters::one_euro::Params{}) {}
上面是 class constructor initializer list
不懂 positionFilter(filters::one_euro::Params{}) 为什么可以 assign, 它们之间没有class 不同class 也没有继承关系
filters::one_euro::Params{} 是什么特殊语法吗？
Params 型态定义如下
struct Params {
Params() : minCutoff(1), beta(0), derivativeCutoff(1) {}
Params(double minCut, double b, double dCut = 1)
: minCutoff(minCut), beta(b), derivativeCutoff(dCut) {}
double minCutoff;
double beta;
double derivativeCutoff;
};
filters::OneEuroFilter<Eigen::Vector3d> positionFilter;
positionFilter 型态如下 , 因为程式码有点长, 我贴网址在178行
https://github.com/OSVR/OSVR-Core/blob/master/inc/osvr/Util/EigenFilters.h
谢谢