| GZ_Center | Function (ROM Call 0x22C)

gdraw.h

void GZ_Center (void);

Changes the zoom settings of the graph.

This function basically changes the zoom settings of the graph. The first time the function is called, it changes the graph to the standard settings. The next time it is called, if there is a function selected, it increases `xmin` and `xmax` by 10, and increases `ymin` and `ymax` also. If there is no function selected, it remains at the standard. It seems that this function has some internal values for `xmin` and `xmax`, and any changes are ignored, meaning that, if you call it twice and change the values for `xmin` and `xmax`, and call this function a third time, the changes you made will be ignored.

Uses: gr_active, round12_err, GT_CenterGraphCursor, GT_Regraph, _bcd_math
Used by: GZ_Box, GZ_Decimal, GZ_Fit, GZ_InOut, GZ_Integer, GZ_Previous, GZ_Recall, GZ_Square, GZ_Standard, GZ_Stat, GZ_Store, GZ_Trig