{"action":"opened","issue":{"url":"https://api.github.com/repos/OpenChemistry/tomviz/issues/770","repository_url":"https://api.github.com/repos/OpenChemistry/tomviz","labels_url":"https://api.github.com/repos/OpenChemistry/tomviz/issues/770/labels{/name}","comments_url":"https://api.github.com/repos/OpenChemistry/tomviz/issues/770/comments","events_url":"https://api.github.com/repos/OpenChemistry/tomviz/issues/770/events","html_url":"https://github.com/OpenChemistry/tomviz/issues/770","id":191367219,"number":770,"title":"Set Scale (in nm, angstroms etc.)","user":{"login":"bdalevin","id":12704237,"avatar_url":"https://avatars.githubusercontent.com/u/12704237?v=3","gravatar_id":"","url":"https://api.github.com/users/bdalevin","html_url":"https://github.com/bdalevin","followers_url":"https://api.github.com/users/bdalevin/followers","following_url":"https://api.github.com/users/bdalevin/following{/other_user}","gists_url":"https://api.github.com/users/bdalevin/gists{/gist_id}","starred_url":"https://api.github.com/users/bdalevin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bdalevin/subscriptions","organizations_url":"https://api.github.com/users/bdalevin/orgs","repos_url":"https://api.github.com/users/bdalevin/repos","events_url":"https://api.github.com/users/bdalevin/events{/privacy}","received_events_url":"https://api.github.com/users/bdalevin/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2016-11-23T19:58:53Z","updated_at":"2016-11-23T19:58:53Z","closed_at":null,"body":"I have a request for a \"Set Scale\" option. This is for an article Hovden and I are working on. \r\n\r\nCurrently, tomviz will display the number of voxels along each axis of the bounding box if you select \"Show Axis Grid\" under the \"View\" menu. An example is shown below. \r\n![show axis](https://cloud.githubusercontent.com/assets/12704237/20576738/275ae364-b18d-11e6-9b0b-67a6cbc132ea.jpg)\r\n\r\nIt would be very useful if there was a \"Set Scale\" option in tomviz. \"Set Scale\" would allow users to tell tomviz the scale of their object in nanometers (or angstroms, or microns etc) per voxel. In the visualization, units of length, instead of voxels, would then be displayed on the bounding box. \r\n\r\nThis would be a very powerful tool, allowing researchers to export figures for publication with a meaningful scale bar directly from tomviz. \r\n\r\n  "}}
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