{"id":861,"date":"2017-07-30T21:05:50","date_gmt":"2017-07-30T19:05:50","guid":{"rendered":"http:\/\/hannes.enjoys.it\/blog\/?p=861"},"modified":"2017-07-30T21:08:48","modified_gmt":"2017-07-30T19:08:48","slug":"flowers-in-qgis","status":"publish","type":"post","link":"https:\/\/hannes.enjoys.it\/blog\/2017\/07\/flowers-in-qgis\/","title":{"rendered":"Flowers in QGIS?"},"content":{"rendered":"

\"\"<\/a><\/p>\n

The other day I was working on visualisation of some intermediate research stuff and ended up with something looking like a bouquet of flowers.<\/p>\n

Twitter liked it<\/a> so here is a how-to.<\/p>\n

    \n
  1. Have some lines that meet in a shared point. They should have a shared ID per group (in my case they were MultiLineStrings).<\/li>\n
  2. Color them per ID.<\/li>\n
  3. Turn the background black.<\/li>\n
  4. Use an Arrow<\/em> style for the lines. Set the Head thickness<\/em> to half the Arrow width<\/em>. Set the Head length<\/em> to whatever you consider fancy.<\/li>\n
  5. Remove the Outline<\/em> (set No Pen<\/em>).<\/li>\n
  6. Set the Feature blending mode<\/em> to Multiply<\/em> (or to Screen<\/em> or Dodge<\/em> or Addition<\/em> if you prefer fireworks to flowers).<\/li>\n
  7. Set an appropriate color scheme. For flowers I think RdYlGn works great (that’s how I realised what my random tinkering had lead to) or PiYg or simply Spectral, for fireworks random colors.<\/li>\n<\/ol>\n
    <\/div>\n

    \"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a><\/p>\n

    That’s it! Now play around and have some fun!<\/div>\n

    \"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    The other day I was working on visualisation of some intermediate research stuff and ended up with something looking like a bouquet of flowers. Twitter liked it so here is a how-to. Have some lines that meet in a shared point. They should have a shared ID per group (in my case they were MultiLineStrings). […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,29,31],"tags":[],"class_list":["post-861","post","type-post","status-publish","format-standard","hentry","category-cartography","category-gis","category-qgis"],"_links":{"self":[{"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/posts\/861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/comments?post=861"}],"version-history":[{"count":21,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/posts\/861\/revisions"}],"predecessor-version":[{"id":892,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/posts\/861\/revisions\/892"}],"wp:attachment":[{"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/media?parent=861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/categories?post=861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hannes.enjoys.it\/blog\/wp-json\/wp\/v2\/tags?post=861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}