{"id":40492,"date":"2018-07-06T11:46:43","date_gmt":"2018-07-06T18:46:43","guid":{"rendered":"https:\/\/www.esri.com\/about\/newsroom\/?post_type=arcwatch&#038;p=40492"},"modified":"2018-11-08T11:50:08","modified_gmt":"2018-11-08T19:50:08","slug":"create-custom-labels-with-arcgis-arcade-expressions","status":"publish","type":"arcwatch","link":"https:\/\/www.esri.com\/about\/newsroom\/arcwatch\/create-custom-labels-with-arcgis-arcade-expressions","title":{"rendered":"Create Custom Labels with ArcGIS Arcade Expressions"},"content":{"rendered":"","protected":false},"author":651,"featured_media":0,"menu_order":0,"template":"","format":"standard","meta":{"_acf_changed":false,"sync_status":"","episode_type":"","audio_file":"","castos_file_data":"","podmotor_file_id":"","cover_image":"","cover_image_id":"","duration":"","filesize":"","filesize_raw":"","date_recorded":"","explicit":"","block":"","itunes_episode_number":"","itunes_title":"","itunes_season_number":"","itunes_episode_type":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[91],"tags":[35332,163382,20422,209752,271],"arcwatch_issues":[23192],"class_list":["post-40492","arcwatch","type-arcwatch","status-publish","format-standard","hentry","category-mapping","tag-arcgis-arcade","tag-arcgis-online","tag-arcgis-pro","tag-labels","tag-mapping","arcwatch_issues-may-2018","arcwatch_sections-the-tip"],"acf":{"short_description":"How can you add informative custom labels to your maps? With ArcGIS Arcade, a scripting language in ArcGIS Online and ArcGIS Pro...","pdf":{"host_remotely":false,"file":null,"file_url":""},"flexible_content":[{"acf_fc_layout":"content","content":"How can you add informative, custom labels to your maps? With\u00a0<a href=\"https:\/\/developers.arcgis.com\/arcade\/\">ArcGIS Arcade<\/a>, a scripting language in\u00a0<a href=\"https:\/\/www.arcgis.com\/home\/index.html\">ArcGIS Online<\/a>\u00a0and\u00a0<a href=\"https:\/\/pro.arcgis.com\/en\/pro-app\/\">ArcGIS Pro<\/a>, you can combine fields, perform calculations, and add text to create more descriptive labels without editing the source data. When your data isn't perfect or the data you need for your labels is spread across multiple fields, Arcade expressions let you turn data back into useful information.\r\n\r\nFor example,\u00a0<a href=\"https:\/\/arcgis.com\/home\/webmap\/viewer.html?webmap=7b39c6c73f3b4828a90da96348dd7fa6\">this map<\/a>\u00a0visualizes the seven wonders of the modern world. There are two fields in the map's layer:\u00a0<strong>Title\u00a0<\/strong>and\u00a0<strong>Date of Construction<\/strong>. You will want to combine the data in these fields onto one label."},{"acf_fc_layout":"image","image":40502,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"image","image":40612,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"To create custom labels, follow these five short steps:\r\n\r\n<strong>Step 1\u2014<\/strong>Open this\u00a0<a href=\"https:\/\/arcgis.com\/home\/webmap\/viewer.html?webmap=7b39c6c73f3b4828a90da96348dd7fa6\">sample web map<\/a>. Click\u00a0<strong>Modify Map\u00a0<\/strong>(found at the top right of the screen) and then click the\u00a0<strong>Content<\/strong>\u00a0tab (found on the left side of the screen). This opens the Contents view, which displays all the layers in your map.\r\n\r\n<strong>Step 2\u2014<\/strong>Select the\u00a0<strong>More Options<\/strong>\u00a0symbol (the three dots under the layer name) and click\u00a0<strong>Manage Labels\u00a0<\/strong>in the drop-down menu. This opens the label editor, where you can customize your layer's labels."},{"acf_fc_layout":"image","image":40542,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<strong>Step 3<\/strong><strong>\u2014<\/strong>Select the\u00a0<strong>Edit Expression\u00a0<\/strong>pencil symbol, to the right of the Text drop-down menu."},{"acf_fc_layout":"image","image":40552,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"The sample map currently displays the name of each of the seven wonders of the modern world. This is shown with the title field (<span class=\"teal\">$feature.Title<\/span>)."},{"acf_fc_layout":"image","image":40562,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<strong>Step 4<\/strong><strong>\u2014<\/strong>Add the year of construction to the label to make it more informative.\r\n\r\nTo do this, type a\u00a0<strong>plus sign, a colon in quotation marks, and another plus sign (<span class=\"red\">+ \": \" +<\/span>)<\/strong>\u00a0to the right of $feature.Title. We use a plus sign because we're adding words together. Make sure to add a space after the colon so that the labels are nicely spaced.\r\n\r\nNow click the\u00a0<strong>Date of Construction field<\/strong>, in blue (<span class=\"blue\">$feature.Date_of_Construction<\/span>), which adds it to the editor."},{"acf_fc_layout":"image","image":40572,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"Click the blue\u00a0<strong>Test<\/strong>\u00a0button to see how your label will look. The Arcade expression combines multiple fields and returns a label like \"Taj Mahal: 1643 CE\".\r\n\r\nWhen you're ready, click\u00a0<strong>OK<\/strong>. Notice how the year now appears in your map."},{"acf_fc_layout":"image","image":40582,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"<strong>Step 5<\/strong><strong>\u2014<\/strong>Edit the label size, color, halo, and position to best match your map. The\u00a0<strong>Visible Range<\/strong>\u00a0slider determines when your labels appear. For example, click<strong>\u00a0<\/strong>on the left side of the\u00a0<strong>light gray slider bar<\/strong>\u00a0and move the slider to the right of the\u00a0<strong>black triangle<\/strong>\u00a0(the map's current zoom level). Notice how the labels disappear from the map. We use this feature when the labels no longer look good at certain scales (e.g., when zoomed out). Return the slider to the far left, the World scale."},{"acf_fc_layout":"image","image":40592,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"Click\u00a0<strong>OK<\/strong>\u00a0to return to the Content view to admire your custom labels!"},{"acf_fc_layout":"image","image":40602,"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"Arcade expressions aren't just for labels. You can also implement expressions for symbology and pop-ups. Explore more use cases with the\u00a0<a href=\"https:\/\/developers.arcgis.com\/arcade\/\">Arcade expression guide<\/a>\u00a0and view web map examples in the\u00a0<a href=\"https:\/\/urbanobservatory.maps.arcgis.com\/home\/group.html?id=dfe07fe13d154b67bbd7a38a2be90fd9\">Arcade Expressions and You gallery<\/a>!"}],"references":null},"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>Create Custom Labels with ArcGIS Arcade Expressions<\/title>\n<meta name=\"description\" content=\"How can you add informative custom labels to your maps? 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