AWR1642: The meaning of some variables in srr GUI demo

Hi,
These variables maps to SRR source structure

typedef struct trackingReportForTx_t
{
int16_t x; /**< the tracking output -> x co-ordinate */
int16_t y; /**< the tracking output -> y co-ordinate */
int16_t xd; /**< velocity in the x direction */
int16_t yd; /**< velocity in the y direction */
int16_t xSize; /**< cluster size (x direction). */
int16_t ySize; /**< cluster size (y direction). */
} trackingReportForTx;


Regards,
Jitendra

What are the parameters of the clustered rectangle, such as the coordinates of the center point of the rectangle?are  they  detObj.x    and  detObj.y ? What is the length and width of the rectangle?  I don't quite understand the two sentences x_loc and y_loc.