Colored proportional circles in ArcMap

Bivariate thematic mapping with ArcMap? Yes you can! Of course, you could also do it in D3.js (including a nice self-generated legend), or with much less effort in Quantum GIS (post in French). Whatever method you choose, colored proportional circles cannot be drawn directly on polygons, but you can draw them on points. Thus, all […]

Crop an image in Adobe Illustrator CS3 or later

When you export maps from ESRI ArcMap to Adobe Illustrator, the raster background is by default exported as a series of associated bitmap strips, with superposed vector polygons.Here an example: In this – as in many other situations – you might need to crop the image to a specific area. Say the following rectangle: To […]