Choropleth and dot maps and field calculations

[@tingneyucsekac6623]

thanks a lot, this has helped me much

[@rkvt]

This video has been up for ages... I have a dot density question about the value of each dot. I am teaching students about it... so, I set a value for the dot (let's say 100 of something) and then switch between data and layout view and the value changes... there's something automatic going on.... I can't tell which check box is controlling this and I can't necessarily replicate it! I am wondering if it's the maintain density by check box... is this something you've managed in some way? I am an occasional instructor and fall into some traps in ArcMap -- thanks for the snappy little videos!

[@rkvt]

Ahhhh, I figured it... it's the check box and it's linked to the ZOOMING!

[@DonBoyes]

Glad you figured it out! Sorry for the late reply!

[@DonBoyes]

Thanks!

[@pareshgis]

Nice bro.............

[@Art-yk3dr]

Thanks alot for the demo,Question is if i wanted to calcualte area for a large extent like a whole continent to normalise the data,but the SRS is in angular units?

[@DonBoyes]

If you see angular units, that means it is in a geographic coordinate system, which is based on a 3D globe. Try reprojecting to a projected coordinate system (which is 2D) and exporting as a new file. Sorry for the late reply, but I haven't been getting notifications for some reason.