{"id":1687862,"date":"2022-08-16T14:07:26","date_gmt":"2022-08-16T21:07:26","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&#038;p=1687862"},"modified":"2022-08-16T14:07:26","modified_gmt":"2022-08-16T21:07:26","slug":"hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online","title":{"rendered":"Hack a choropleth map into an elevation map in ArcGIS Online"},"author":6971,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22941],"tags":[26451,496632,24141,31931,32661],"industry":[],"product":[36581,36551],"class_list":["post-1687862","blog","type-blog","status-publish","format-standard","hentry","category-mapping","tag-cartography","tag-choropleth","tag-elevation","tag-hack","tag-thematic-mapping","product-arcgis-living-atlas","product-arcgis-online"],"acf":{"short_description":"Here's how you can turn a choropleth map into a weird data-driven elevation map for some reason.","flexible_content":[{"acf_fc_layout":"content","content":"<p>Ah maps. It&#8217;s all about encoding data into colors and stuff. But does it have to stop there? Why not get a bit more literal? Here&#8217;s how to make a thematic map of low values and high values look like an elevation map with low areas and high areas. Low and high looks low and high! Get it?<\/p>\n"},{"acf_fc_layout":"youtube","start_time":"0","end_time":"","youtube_video_url":"<iframe title=\"How To Make a Thematic Map Look Like a Terrain Map\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/g1k9ah9bO5Y?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>"},{"acf_fc_layout":"content","content":"<p>Here&#8217;s a rundown for the video-averse among you&#8230;<\/p>\n<p>1. Find a grand and glorious polygon layer with some attribute that you want to map. In this example I&#8217;ve chosen Life Expectancy from the <a href=\"https:\/\/livingatlas.arcgis.com\/en\/browse\/?q=%22County%20Health%20Rankings%202021%22#d=1&amp;q=%22County%20Health%20Rankings%202021%22\" target=\"_blank\" rel=\"noopener\">2021 County Health Rankings<\/a> which I added via Living Atlas.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1687892,"id":1687892,"title":"1CountyHealthData","filename":"1CountyHealthData.jpg","filesize":232520,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online\/1countyhealthdata","alt":"Life expectancy data from Living Atlas","author":"6971","description":"","caption":"","name":"1countyhealthdata","status":"inherit","uploaded_to":1687862,"date":"2022-08-16 20:05:52","modified":"2022-08-16 20:06:23","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData-1536x864.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData-826x465.jpg","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData-1920x1080.jpg","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/1CountyHealthData.jpg"},{"acf_fc_layout":"content","content":"<p>2. Duplicate this layer as many times as you want to want to have range breaks, and apply a filter to each copied layer so that it shows a specific range of the data. I ended up with five separate layers, each showing a five-year slice of life expectancy. Order the layers so that the highest value layer is on the top of the list.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1687912,"id":1687912,"title":"2SeparateRangeLayers","filename":"2SeparateRangeLayers.jpg","filesize":191101,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online\/2separaterangelayers","alt":"Layer duplicated into multiple layers, each with a filter showing a specific slice of data.","author":"6971","description":"","caption":"","name":"2separaterangelayers","status":"inherit","uploaded_to":1687862,"date":"2022-08-16 20:46:48","modified":"2022-08-16 20:48:29","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers-1536x864.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers-826x465.jpg","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers-1920x1080.jpg","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/2SeparateRangeLayers.jpg"},{"acf_fc_layout":"content","content":"<p>3. Give each layer a gray color so that together, they look like a grayscale map. Light gray for the highest values to dark gray for the lowest values. Apply a drop shadow effect to each layer.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1687942,"id":1687942,"title":"3ColorAndShadow","filename":"3ColorAndShadow.jpg","filesize":215540,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online\/3colorandshadow","alt":"Discrete layers are given a shade of gray and a drop shadow.","author":"6971","description":"","caption":"","name":"3colorandshadow","status":"inherit","uploaded_to":1687862,"date":"2022-08-16 20:54:03","modified":"2022-08-16 20:54:30","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow-1536x864.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow-826x465.jpg","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow-1920x1080.jpg","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/3ColorAndShadow.jpg"},{"acf_fc_layout":"content","content":"<p>4. Create a group and add all the layers to this group, keeping them in descending order. Then, with the group selected, apply an <em>overlay<\/em> blend mode (my favorite blend mode).<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1687952,"id":1687952,"title":"4OverlayBlend","filename":"4OverlayBlend.jpg","filesize":247785,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online\/4overlayblend","alt":"An overlay blend mode on the layer group creates a sense of light and shadow on the underlying imagery.","author":"6971","description":"","caption":"","name":"4overlayblend","status":"inherit","uploaded_to":1687862,"date":"2022-08-16 20:56:38","modified":"2022-08-16 20:57:26","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend-1536x864.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend-826x465.jpg","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend-1920x1080.jpg","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/4OverlayBlend.jpg"},{"acf_fc_layout":"content","content":"<p>Overlay applies the light and dark grays of the layers (and their drop shadows) as tones to the underlying imagery, giving them a sense of illumination and depth. The lighter areas appear to be high plateaus and the lower areas are basins. It&#8217;s a landscape of low and high elevation driven by the low and high values of the thematic data.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":1687972,"id":1687972,"title":"5Complete","filename":"5Complete.jpg","filesize":541734,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-online\/mapping\/hack-a-choropleth-map-into-an-elevation-map-in-arcgis-online\/5complete","alt":"Completed life expectancy map, shown as elevation.","author":"6971","description":"","caption":"","name":"5complete","status":"inherit","uploaded_to":1687862,"date":"2022-08-16 21:06:51","modified":"2022-08-16 21:07:13","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete-213x200.jpg","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete-1536x864.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete-826x465.jpg","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete-1920x1080.jpg","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/5Complete.jpg"},{"acf_fc_layout":"content","content":"<p>If you&#8217;d like to have a closer look at the example I&#8217;ve made here, you can fire up <a href=\"https:\/\/nation.maps.arcgis.com\/home\/item.html?id=423183df87694351b3fc08fe11aa25cb\" target=\"_blank\" rel=\"noopener\">this web map<\/a>. I&#8217;ve added labels for the life expectancy data, so there&#8217;s a bit more context when you zoom in. This is a fun one and pretty easy. Give it a shot with some choropleth maps you have laying around and see if it gives them a new sense of interest and intrigue.<\/p>\n<p>Love, <a href=\"https:\/\/www.youtube.com\/c\/JohnNelsonMaps\" target=\"_blank\" rel=\"noopener\">John<\/a><\/p>\n"}],"authors":[{"ID":6971,"user_firstname":"John","user_lastname":"Nelson","nickname":"John Nelson","user_nicename":"j_nelson","display_name":"John Nelson","user_email":"John_Nelson@esri.com","user_url":"http:\/\/www.adventuresinmapping.com","user_registered":"2018-03-02 00:19:05","user_description":"I have far too much fun looking for ways to understand and present data visually, hopefully driving product strategy and engaging users. I work in the ArcGIS Living Atlas team at Esri, pushing and pulling data in all sorts of absurd ways and then sharing the process. I also design user experiences for maps and apps.\r\nWhen I'm not doing those things, I'm chasing around toddlers and wrangling chickens, and generally getting into other ad-hoc adventures. Life is good.\r\nYou might also like these Styles for ArcGIS Pro: esriurl.com\/nelsonstyles","user_avatar":"<img data-del=\"avatar\" src='https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2018\/04\/Profile.jpg' class='avatar pp-user-avatar avatar-96 photo ' height='96' width='96'\/>"}],"related_articles":"","card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/DataTerrain_Card.jpg","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2022\/08\/DataTerrain_Banner.jpg"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hack a choropleth map into an elevation map in ArcGIS Online<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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