Top Page > RP-GL/2 and RTIFF > Using RP-GL/2 > Setting Items on the RPGL Menu > 49. Centring

49. Centring

Specify this item to align the center of the drawing’s printable area to the center of the paper, and print the drawing in the middle of the paper.

Off
Centering is not performed.
49. Centring: On
Centering is performed.
- Entire Printable Area
  The entire area of the drawing is considered as the printable area when the drawing on paper is centered.
- Positive Printable Area
  The positive region (positive values on X and Y axes) originating in the bottom left corner of the drawing is considered as the printable area when the drawing on paper is centered.
Default: Off

The drawing center is derived from the center of the printable area determined in "47. Method to Determine Orig. Size" and the size adjusted by settings in "39. Margin Adjustment for Auto R/E" settings.
The center of the paper is the center of the printable area selected in "23. Hard Clip".
The centering function is invalid when "PS/IP Command" is selected for "47. Method to Determine Orig. Size" but no PS command (RP-GL/2) or IP command (RP-GL) is in the drawing data.
The "Positive Printable Area" settings are effective if "7475A" or "7550A" is selected for "6. Plotter ID", or either "Entire Image" or "Auto" is selected for "47. Method to Determine Orig. Size".
When reduced/enlarged by the settings for "20. Reproduction Ratio", "29. Auto Reduce / Enlarge", or "43. Auto Select Paper Input"; centering is applied to the reduced/enlarged drawing.
When the drawing is rotated by the settings for "5. Axis Rotation", "29. Auto Reduce / Enlarge", or "43. Auto Select Paper Input"; centering is applied to the rotated drawing.
Centering is applied first, and then the location of the drawing is adjusted according to the values specified in "7. Adjust X Offset" and "8. Adjust Y Offset".
If you select a custom size when "Long Edge & R/E Ratio (Size Adjust)" (submenu is ignored) is selected in "43. Auto Select Paper Input", the same size as the original is automatically selected as the output paper size. The printing result may not appear to reflect the effect of centering, even when "On" is selected for centering.