Calculated values for a stair tread.
    typedef struct {
        double     area;
        double     volume;
        double     thickness;
        double     elevation;
        Int32      stepIndex;
        Int32      filler;
    } API_StairTreadQuantity;
    
Members
- area
- Top surface area of the given tread.
- volume
- Volume of the given tread.
- thickness
- Thickness of the given tread.
- elevation
- Elevation to project zero.
- stepIndex
- Step index of the given tread.
Requirements
- Version: API 21 or later
- Header: APIdefs_Elements.h