set属性

boost::hash_combine

return the last read token (for errors only). Will never contain EOF (an arbitrary value that is not a valid char value, often -1), because 255 may l

! @brief remove last reference token @pre not `empty()` @liveexample{The example shows the usage of `pop_back`.,json_pointer__pop_back}

@param point -- 实际坐标值 @return 度量坐标值

是角度

return value of the iterator

! @brief returns an iterator to the first element Returns an iterator to the first element. @image html range-begin-end.svg "Illustratio

坐标系右上角的点

blend semi-transparent color with white

调用callback @param functionId 回调函数的id @param param 参数，是一个json string

! @brief return whether value is a binary array This function returns true if and only if the JSON value is a binary array. @return `tru

设置bridge的扶栏，这里是设置平台的工具类 @param railing 工具类

设置文字font

标准接口, 添加colorStop offset color

矩阵操作

坐标系左下角的点

覆盖nan和cached scale