shawnbot/topogram

Area scaling is wonky

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#3 opened on Dec 5, 2012

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help wantedquestion

Description

Currently I'm scaling state values linearly from 1 to 1000, which seems unnecessarily arbitrary. A linear scale of 0 to 1 doesn't work either, but in theory it should because the area scaling is linear.

Contributor guide

Tech stack
javascripthtml
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
basic JavaScriptunderstanding of d3.js scalesfamiliarity with cartograms
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50
Research direction
The issue is in the file index.html at lines 329-332 where state values are scaled linearly from 1 to 1000. The contributor should analyze why a linear scale from 0 to 1 does not work as expected and identify the correct scaling function. Additionally, examine the d3.scale.linear documentation and the cartogram algorithm to determine the appropriate range and domain for the area scaling.