Quite possibly nobody will ever use it, but I couldn't help myself:
After using Excel to create most of the content in my dotted circle hatch in the previous post, I realised that it would be pretty easy to create the entire hatch in Excel and to base it on parameters such as number of dots and circle spacing...
The resulting Excel file is attached (note that Excel may disable functionality on downloaded spreadsheets - you will probably need to Enable Editing, and then Enable Content in order to use the spreadsheet).
I have limited the number of dots to 512 (simply because it seemed like a nice round number - I think DataCAD can handle up to 999, not sure if it can do more than that) and the spacing to a minimum of 1/10th the circle diameter (which will produce very overlapped circles). Other than that you can specify pretty much what you want to create patterns such as those shown below:
CircleVariations.png (13.95 KiB) Viewed 15073 times