{"id":349,"date":"2013-08-23T12:30:30","date_gmt":"2013-08-23T12:30:30","guid":{"rendered":"http:\/\/ahay.org\/blog\/?p=349"},"modified":"2015-08-30T22:43:05","modified_gmt":"2015-08-30T22:43:05","slug":"cube-helix-color-palette","status":"publish","type":"post","link":"https:\/\/ahay.org\/blog\/2013\/08\/23\/cube-helix-color-palette\/","title":{"rendered":"Cube-helix color palette"},"content":{"rendered":"<p>The &#8220;cube helix&#8221; color palette was <a href=\"http:\/\/www.mrao.cam.ac.uk\/~dag\/CUBEHELIX\/\">suggested by Dave Green<\/a> for displaying astronomical intensity. This pallette is designed to be monotonically increasing on terms of its perceived brightness, which results in a nice greyscale when printed on a black and white printer.<br \/>\n<img decoding=\"async\" src=\"http:\/\/www.mrao.cam.ac.uk\/~dag\/CUBEHELIX\/rgb-default.png\" alt=\"\" title=\"\" \/> <\/p>\n<p>Now this palette is available to Madagascar plotting programs, such as <a href=\"\/RSF\/sfgrey.html\"> sfgrey<\/a>, as <strong>color=x<\/strong>. See the following example from <a href=\"\/RSF\/book\/rsf\/rsf\/sfgrey.html\">rsf\/rsf\/sfgrey<\/a>: <\/p>\n<p><img decoding=\"async\" src=\"\/RSF\/book\/rsf\/rsf\/sfgrey\/Fig\/x.png\" alt=\"\" title=\"\" \/> <\/p>\n<p>More information:<\/p>\n<ul>\n<li><a href=\"\/blog\/2013\/03\/19\/color-palettes\/\">User-defined color palettes<\/a><\/li>\n<li><a href=\"\/blog\/2005\/03\/28\/color-schemes\/\">Standard color palettes<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The &#8220;cube helix&#8221; color palette was suggested by Dave Green for displaying astronomical intensity. This pallette is designed to be monotonically increasing on terms of its perceived brightness, which results in a nice greyscale when printed on a black and white printer. Now this palette is available to Madagascar plotting programs, such as sfgrey, as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","activitypub_content_warning":"","activitypub_content_visibility":"local","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-349","post","type-post","status-publish","format-standard","hentry","category-examples"],"_links":{"self":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/349","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/comments?post=349"}],"version-history":[{"count":3,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/349\/revisions"}],"predecessor-version":[{"id":15514,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/posts\/349\/revisions\/15514"}],"wp:attachment":[{"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/media?parent=349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/categories?post=349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ahay.org\/blog\/wp-json\/wp\/v2\/tags?post=349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}