{"action":"created","issue":{"url":"https://api.github.com/repos/plotly/plotly.js/issues/332","repository_url":"https://api.github.com/repos/plotly/plotly.js","labels_url":"https://api.github.com/repos/plotly/plotly.js/issues/332/labels{/name}","comments_url":"https://api.github.com/repos/plotly/plotly.js/issues/332/comments","events_url":"https://api.github.com/repos/plotly/plotly.js/issues/332/events","html_url":"https://github.com/plotly/plotly.js/issues/332","id":140820836,"number":332,"title":"Support for raster graphics","user":{"login":"cpsievert","id":1365941,"avatar_url":"https://avatars0.githubusercontent.com/u/1365941?v=3","gravatar_id":"","url":"https://api.github.com/users/cpsievert","html_url":"https://github.com/cpsievert","followers_url":"https://api.github.com/users/cpsievert/followers","following_url":"https://api.github.com/users/cpsievert/following{/other_user}","gists_url":"https://api.github.com/users/cpsievert/gists{/gist_id}","starred_url":"https://api.github.com/users/cpsievert/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/cpsievert/subscriptions","organizations_url":"https://api.github.com/users/cpsievert/orgs","repos_url":"https://api.github.com/users/cpsievert/repos","events_url":"https://api.github.com/users/cpsievert/events{/privacy}","received_events_url":"https://api.github.com/users/cpsievert/received_events","type":"User","site_admin":false},"labels":[{"id":282886925,"url":"https://api.github.com/repos/plotly/plotly.js/labels/type:%20feature","name":"type: feature","color":"1f78b4","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":12,"created_at":"2016-03-14T23:02:55Z","updated_at":"2017-06-28T02:03:51Z","closed_at":"2017-05-10T20:23:11Z","body":"To support something like [`annotation_raster()`](http://docs.ggplot2.org/current/annotation_raster.html) in our R package, which would lead to awesomeness such as conversion of [ggmap](https://journal.r-project.org/archive/2013-1/kahle-wickham.pdf) (people have been [asking for this](https://github.com/ropensci/plotly/issues/13) for a _long_ time), I need support for displaying a matrix of arbitrary color codes. Using a heatmap seems out of the question since we can't generate a sensible colorscale, and drawing a marker for each cell seems inefficient.  Any thoughts on how to approach this?\n"},"comment":{"url":"https://api.github.com/repos/plotly/plotly.js/issues/comments/311535973","html_url":"https://github.com/plotly/plotly.js/issues/332#issuecomment-311535973","issue_url":"https://api.github.com/repos/plotly/plotly.js/issues/332","id":311535973,"user":{"login":"jackparmer","id":1865834,"avatar_url":"https://avatars3.githubusercontent.com/u/1865834?v=3","gravatar_id":"","url":"https://api.github.com/users/jackparmer","html_url":"https://github.com/jackparmer","followers_url":"https://api.github.com/users/jackparmer/followers","following_url":"https://api.github.com/users/jackparmer/following{/other_user}","gists_url":"https://api.github.com/users/jackparmer/gists{/gist_id}","starred_url":"https://api.github.com/users/jackparmer/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jackparmer/subscriptions","organizations_url":"https://api.github.com/users/jackparmer/orgs","repos_url":"https://api.github.com/users/jackparmer/repos","events_url":"https://api.github.com/users/jackparmer/events{/privacy}","received_events_url":"https://api.github.com/users/jackparmer/received_events","type":"User","site_admin":false},"created_at":"2017-06-28T02:03:51Z","updated_at":"2017-06-28T02:03:51Z","body":"Thanks @ssfrr . If you have a link to a chart (both an SVG and GL version), that would help to debug. Here's a link to a GL audio spectrogram for example: https://plot.ly/~PythonPlotBot/829"}}
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