If you have worked on large drawings or have had to zoom in and out a lot you may have noticed that curved objects like circles and arcs appear blocky or look more like polygons rather than circles. Don’t worry, you have options to fix this.
1) Set the system variable WHIPARC to a value of <1> This variable determines if curved objects is displayed as a smooth curve or as a series of “vectors” Setting this variable to <o> (zero) turns off the smooth curves.
After setting the WHIPARC Variable, do a REGEN – RE <enter>
2) Change the “View Resolution” in the command line.
VIEWRES <enter> Y <enter> to acccept “fast zooms” then set a value up to 20,000. The lower the value, the more blocky circles and arcs will appear. With newer computers, you should not have any problems settings this to the maximum value of 20,000.
3) Set the “View Resolution” in the Options Dialog box.
Open the “Options Dialog” by either entering OP <enter> or by a right clickin the drawing area and selecting “Options”.
Click on the “Display” tab
In the “Display Resolution” area of this tab, set the value of the “circle and arc smoothness” to a value of up to 20,000 (same as above)
When you are finished, click OK