The non-anti-aliased image at 300dpi, is good but still has jagged edges.
To perform anti-aliasing requires additional computer resources (CPU, memory, and
execution time). Graphs that have a lot of markers, lines, and text use even more
resources. Filled or gradient 3-D surface plots might require even more resources.
Setting a higher DPI increases anti-aliasing resources. At some point, ODS Graphics
deems that anti-aliasing requires too many resources and it turns the feature off. When
this happens, you get a non-anti-aliased rendered graph and a message in the SAS log
similar to the following :
NOTE: Marker and line antialiasing has been disabled ...
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