CNC_RDROTVOLC | NCDATA

Specify the library handle. See "Library handle" for details.

Specify the compensation number which the reading start. The range is 1-7812.

Specify the reading number. The range is 1-13.
After the execution of this function, *num holds the real read number of data.

Pointer to the area to store the 3-dimensional rotary error compensation data.
The IODBROTVOLC structure is as follows. (Maximum size is rot_data[13].)

typedef struct iodbrotvolc {
    long   lin[3] ;   /* translational errors[Cx,Cy,Cz]    */
    long   rot[3] ;   /* rotary errors[Ca,Cß,C?] */
} IODBROTVOLC ;

It is necessary to allocate the size of [num * sizeof(iodbrotvolc)] byte for "rot_data".

For example, when 2 data from No.5 is acquired, the acquired data becomes as follows.

ODBROTVOLC *rot_data ;

start_no = 5;

num = 2;

The 3-dimensional rotary error compensation data is stored as follows.

rot_data[0]->lin[0] Translational error compensation data of 1st axis in No.5.

rot_data[0]->lin[1] Translational error compensation data of 2nd axis in No.5.

rot_data[0]->lin[2] Translational error compensation data of 3rd axis in No.5.

rot_data[0]->rot[0] Rotary error compensation data of 1st axis in No.5.

rot_data[0]->rot[1] Rotary error compensation data of 2nd axis in No.5.

rot_data[0]->rot[2] Rotary error compensation data of 3rd axis in No.5.

rot_data[1]->lin[0] Translational error compensation data of 1st axis in No.6.

rot_data[1]->lin[1] Translational error compensation data of 2nd axis in No.6.

rot_data[1]->lin[2] Translational error compensation data of 3rd axis in No.6.

rot_data[1]->rot[0] Rotary error compensation data of 1st axis in No.6.

rot_data[1]->rot[1] Rotary error compensation data of 2nd axis in No.6.

rot_data[1]->rot[2] Rotary error compensation data of 3rd axis in No.6.