5
votes
3answers
223 views

Should I use a discrete or continuous scale for coloring a chloropleth?

I am making a choropleth for an upcoming local race using D3. There are two candidates running for an election. For any given polygon on my map, if the red candidate has more votes, the color should ...
13
votes
3answers
360 views

How to improve cartographic visualization of overlapping polygons?

I need some advice about how to improve the visualization of cartographic information. User can select different species and the webmapping app shows its geographical distribution (polygonal degree ...
0
votes
0answers
571 views

Plot poly-lines between few points in D3+Polymaps

I would like to create polyline on the click of the mouse. I have 4 circles 3 with radius 2 (Lets name it as B,C,D) and 1 with radius 8 (Lets name it as A). Now when I click on the circle A, poly line ...