mourner / simpleheat

A tiny JavaScript library for drawing heatmaps with Canvas

Home Page:http://mourner.github.io/simpleheat/demo

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Legend

jbrown15 opened this issue · comments

Is there a way to add a legend for the color scale of the heatmap? Im using leaf.heat which is based on this.

You set the gradient with an object of the form {<stop>: <color>} where stop ranges from 0 to 1. You can use the same object to generate a legend manually.

// set gradient colors as {<stop>: '<color>'}, e.g. {0.4: 'blue', 0.65: 'lime', 1: 'red'}
heat.gradient(grad);