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zme1 / toscana

A repository to house research and web development for the Lega Toscana project, led by professor Lina Insana (Spring 2018) and professor Lorraine Denman (Fall 2018), and with consultation from members of the DH Advanced Praxis group at the University of Pittsburgh at Greensburg.
http://toscana.newtfire.org
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heatmap colors #27

Closed djbpitt closed 6 years ago

djbpitt commented 6 years ago

@zme1 In the current XSLT that generates the heatmap (in the heatmap branch), we currently perform an XPath calculation to determine the colors (hue and lightness are constant, saturation increases with the number of committees). That method distributes the saturation values evenly over the range of numbers of committee memberships, but although it’s arithmetically balanced, arithmetic balance doesn’t necessarily translate to visual appeal. Instead of performing this calculation, it might be better to plan a palette in http://colorbrewer2.org and use those colors.

ebeshero commented 6 years ago

@zme1 We're just looking at your new version of the heatmap--and it looks terrific with those grid lines and boundaries denoting officers! It's neat to be able to see a few people start out as active members and become officers a while...and it's also neat to see continued activity after an officer stint!

@djbpitt and I were just discussing this: perhaps you can add a tooltip to SVG so that on mouseover you get the person's name? More complex--try making a table of data visible on mouseover. That'll take a little JavaScript and you'll need to integrate this on an HTML page (but we have some code samples and I have a homework excercise on this)!