arcgis-desktopcartographylegend
I have a population density map where I'm showing the amount of people per square kilometer. In order to make it more visually appealing I want to show something like:
Is that possible in ArcMap? If so, how can I achieve this?
The only solution we've found to date is one you've already rejected: convert to graphics. (Though I've not experienced the "move label, marker disapeared" problem you mention.) We just sigh, curse a little, suck it up and keep going. On the bright side this allows us to do things not otherwise possible. In this example below any given polygon on the map can have one, two or all three of the line types shown. Collapsing all the possibilities to one legend patch does wonders for conserving real estate, and makes it easier for the map reader to comprehend in the process. It's a gain worth the pain. Thanks go to Gary Stronghill for the design idea.
Usually, choropleth maps display densities and not populations. Displaying population makes the result too dependent on the subdivision. So, option 2 is certainly the most appropriate one.
To define the density classes, this document describes common methodologies. The quantile method is usually applied for choropleth maps.
Best Answer
Something like 2.00 - 5.00 people/km2 in the layer name or layer description will work just as well. the 2 is enclosed between Superscript tag
Read this for more info about format tags available in ArcMap.