A cartogram is a map that varies the area of its elements to represent some underlying value.

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17
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2answers
2k views

How to create contiguous area cartograms in QGIS or R?

Here is what I want to achieve (on the right): I am looking for a tool or a method to transform a shapefile (with QGIS or R) into this form. And please be aware: It's not just clipping a hexagonal ...
12
votes
1answer
415 views

What are the guidelines for the use of non-contiguous cartograms?

The non-contiguous cartogram seems to solve a lot of the area distortions seen with traditional cartograms, while preserving the ability to identify areas by their shape lost with Dorling or Demers ...
9
votes
3answers
2k views

Intensity/Bubble Map

So I have been tasked to create a visual map of case volume shipped to each region from each of our warehouses. I think the most effective way to visualize this data is to create an intensity (bubble) ...
8
votes
3answers
2k views

Where has the cartogram plugin for QGIS gone?

This plugin used to be downloadable from Carson Farmer's plugin repository page. However, the repository is broken. An old version of the plugin source code is still available at https://code.google....
8
votes
1answer
598 views

demers cartogram

How do you make a demers cartogram from a shapefile/topojson/geojson? I have tried scapetoad and indiemapper and i can not duplicate what you find on the links below. http://graphics.latimes.com/2012-...
7
votes
2answers
149 views

How to use real GIS tools to make skewed area maps for infographics

I'm a junior GIS tech, trying to make a map as part of an infographic. I wanted to do one where the size of polygons varied with a particular numeric attribute. Something like this one, where each ...
6
votes
2answers
2k views

Building cartograms using Web GIS?

I would like to build a cartogram map using Web GIS. I have a basemap and a set of raw data in excel. I wondered what are the steps to build up a cartogram map using Web GIS? Note: Originally ...
5
votes
3answers
1k views

Creating map with same-area hexagonal polygons using ArcGIS for Desktop?

I'm trying to figure out (1) what this type of map linked here is called (I've been unable to find the name through search), and (2) whether there is an Arc tool that will transform a shapefile or ...
3
votes
1answer
144 views

Is it possible to animate a cartogram with FOSS GIS?

I was wondering if anyone knows of any FOSS tools to animate cartograms? By this, I mean 'tweening' between the geographic shapefile and the cartogram version of a shapefile. This means gradually ...
3
votes
1answer
25 views

GEOJSON - Transition to cartogram

I have 2 GEOJSON files - 1st contains map of indian states ('India-simple.GEOJSON'), and the second is cartogram based on Gross State Domestic Product of that state ('India-cartogram.GEOJSON'). I ...
2
votes
1answer
184 views

Cartogram not working: “Cancelled by user” - Why?

I am using the QGIS Cartogram plugin, but unfortunately something is not working as it should. First, the demo works just fine. But when I want to create a cartogram with my own layer. But as soon ...
2
votes
1answer
450 views

How to update a QGIS plugin for new version (2.2)?

The updates to QGIS 2.2 have been fantastic and I'm really liking the improvements to the interface, features and performance. However, it seems that some plugins have not survived the upgrade. ...
2
votes
1answer
247 views

Python Error while installing Cartogram

I am quite new to GIS and qGIS especially. I would like to install cfarmers cartogram plugin. From what I understand, this has to be done manually - so I 've followed the instructions from ...
2
votes
3answers
617 views

What Application for Vector and Cartesian Coordinate System [closed]

Goal: Visualize a picture in SQL server 2012 spatial data based on geometry Problem: In order to display a vector picture I need to retrieve X, Y coordinate (cartesian coordinate system) and ...
2
votes
0answers
575 views

How to create cartogram maps in Arcgis 10.2.2?

I have followed the exact steps from http://www.gislounge.com/how-to-make-area-cartogram-maps-in-arcgis/ and downloaded from arcscripts.esri.com. After adding the cartogram tool into the toolbox and I ...
1
vote
2answers
178 views

Cartogram plugin for leaflet or OSM

Does anyone know if there is a plugin to make cartograms for leaflet? I have sets of geotagged Twitter datas and I'd like to distord the map according to the density of tweets of every area of the ...
1
vote
1answer
399 views

Creating contiguous pixel based cartogram using ArcGIS for Desktop?

There are several types of cartograms out in the world, but I feel the best one are the continuous cartograms made with separate pixels. I recently made one on paper and then transcribed it to excel ...
1
vote
0answers
151 views

How to display missing objects in QGIS 2.8.2 cartogram?

I've just created cartogram using styles/graduated symbol. But there are some missing elements on the map. Objects without data in attribute table are not present on the map (NULL in corresponding ...
0
votes
0answers
35 views

Cartogram Cancelled by User - No Null Data

I'm very new to QGIS and I'm trying to create a cartogram for my final project. However, while I have my data that I'm going to use and the shape files (provided by the US census) for the US, I can't ...