{"id":2275802,"date":"2024-03-18T16:40:24","date_gmt":"2024-03-18T23:40:24","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=2275802"},"modified":"2024-11-03T17:40:21","modified_gmt":"2024-11-04T01:40:21","slug":"then-now-swipe-map","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map","title":{"rendered":"Then and Now Swipe Map"},"author":19381,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[22941],"tags":[23881,677501,773902,773892,773912],"industry":[],"product":[760042,36581,36551],"class_list":["post-2275802","blog","type-blog","status-publish","format-standard","hentry","category-mapping","tag-historical-maps","tag-instant-apps","tag-swipe-map","tag-the-living-atlas","tag-then-now","product-instant-apps","product-arcgis-living-atlas","product-arcgis-online"],"acf":{"authors":[{"ID":19381,"user_firstname":"Amanda","user_lastname":"Stanko","nickname":"AStanko","user_nicename":"astanko","display_name":"Amanda Stanko","user_email":"AStanko@esri.com","user_url":"","user_registered":"2020-03-23 21:52:21","user_description":"Amanda works in the Geo Experience Center at Esri as a Sr Solution Engineer where she demonstrates interesting applications to guests. She enjoys tinkering with ArcGIS apps and finding simple ways to build powerful workflows. When she's not at her computer, she is taking care of her animals at her suburban farm, or hitting the trails with her dogs in the nearby mountains.","user_avatar":""}],"short_description":"Create a Then and Now comparison swipe map using USGS Topo Map Explorer and Living Atlas data.","flexible_content":[{"acf_fc_layout":"content","content":"

Recently I was reading Aileen Buckley\u2019s blog<\/a> on the release of the USGS Historical Topographic Map Collection. The Historical Topo Map Explorer App<\/a> allows you to dive deep into the collection of over 181,000 historical maps!<\/p>\n

While it\u2019s fun to explore with the app, it\u2019s also a tool to bring maps of interest into your space. Where would you want to compare to where you are now? Somewhere you’ve wanted to visit, or somewhere you once lived, or where you grew up?<\/p>\n

This beta blog<\/a> by John Nelson, Calvin Manning, & Ken Baloun walks you through some mini GIF tutorials of what you can do in the Historical Topo Map Explorer – from downloading GeoTIFFs to work with in ArcGIS Pro, or opening the maps you’re exploring in ArcGIS Online.<\/p>\n

For my exploration, I decided to work in the cloud in ArcGIS Online, and I focused on where I grew up in Metro Detroit, Michigan. My family has expanded around the area since I was a child; my father was born in Detroit and now lives further south in Grosse Ile, Michigan.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281762,"id":2281762,"title":"MonExport2TopoMaps","filename":"MonExport2TopoMaps.gif","filesize":5010058,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/monexport2topomaps","alt":"","author":"19381","description":"","caption":"","name":"monexport2topomaps","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:27:41","modified":"2024-03-18 18:29:04","menu_order":0,"mime_type":"image\/gif","type":"image","subtype":"gif","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\/2024\/03\/MonExport2TopoMaps-213x200.gif","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps-1536x864.gif","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps-826x465.gif","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonExport2TopoMaps.gif","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/livingatlas.arcgis.com\/topomapexplorer\/"},{"acf_fc_layout":"content","content":"

Then<\/h2>\n"},{"acf_fc_layout":"content","content":"

By stitching two vintage Topo maps together, I exported my areas of interest into a single web map.<\/p>\n

Once I had the web map open with my historic maps, I went to ArcGIS Living Atlas<\/a> to look for interesting data to compare over two time periods with the swipe tool. Besides maps and apps, the Living Atlas has tens of thousands of data layers that can be added to your own custom maps.<\/p>\n

I added the National Register of Historic Places points<\/a> layer to my web map. The dataset includes places that are noteworthy for their history, architecture, or engineering from the National Park Service.<\/a> The feature service is checked weekly for updates, so I know that by adding this layer I will always have the most current data in my map.<\/p>\n"},{"acf_fc_layout":"content","content":"

Now<\/h2>\n"},{"acf_fc_layout":"content","content":"

To compare facilities, I looked for a local Metro Detroit data source. SEMCOG, or Southeast Michigan Council of Governments, maintains an Open Data Portal for the region.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281872,"id":2281872,"title":"SEMCOG","filename":"MonSEMCOG-e1710786497236.png","filesize":1560918,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/monsemcog","alt":"","author":"19381","description":"Open Data Portal for SEMCOG - Southeast Michigan Council of Governments","caption":"","name":"monsemcog","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:38:00","modified":"2024-03-18 18:28:53","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":800,"height":450,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","large-width":800,"large-height":450,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","2048x2048-width":800,"2048x2048-height":450,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonSEMCOG-e1710786497236.png","wide_image-width":800,"wide_image-height":450}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/maps-semcog.opendata.arcgis.com\/"},{"acf_fc_layout":"content","content":"

Doing a little exploring into their shared data, I found 2020 Building Footprints<\/a> to add to my map. By looking at local, authoritative sources, I was able to find a much more detailed dataset with a building inventory of the region, including \u201cYear built\u201d and \u201cDemolished\u201d dates and information.<\/p>\n"},{"acf_fc_layout":"content","content":"

I spent a few minutes cleaning up my popups. I added a few style effects to my features, including a drop shadow on the building footprints that really gives that feeling of depth in the shadows of the buildings. What a cartographic difference!<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281792,"id":2281792,"title":"Footprints Style","filename":"MonFootprintsStyle.png","filesize":2311925,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/monfootprintsstyle","alt":"Effects on Building Footprints","author":"19381","description":"Using \"effects\", we can add a drop shadow to the building footprints and show some dimension in the visualization","caption":"Drop shadow effect on building footprints","name":"monfootprintsstyle","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:27:59","modified":"2024-03-11 21:49:17","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","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\/2024\/03\/MonFootprintsStyle-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonFootprintsStyle.png","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

Before moving on to make my swipe map, I wanted to have two different versions of the building footprints – one version for 1905 and one version for today. I applied filters to show only buildings that existed in 1905 and that were not demolished, and another filter on the 2020 building footprints to show what hasn’t been demolished in the dataset.<\/p>\n"},{"acf_fc_layout":"content","content":"

Configuring the Swipe Map<\/h2>\n"},{"acf_fc_layout":"content","content":"

With the web map prepared, I was ready to configure an instant swipe map app. A “Swipe map” allows you to swipe the map window in view, switching the map between different data, allowing you to compare different variables in the same location.<\/p>\n

By typing \u201cSwipe\u201d in the Instant App search bar, it filters the options to choose from for this capability.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281812,"id":2281812,"title":"Instant Apps - Swipe","filename":"MonInstantApps_Swipe.png","filesize":464390,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/moninstantapps_swipe","alt":"Swipe Instant Apps","author":"19381","description":"Searching \"Swipe\" in Instant Apps filters for options with the swipe capability.","caption":"Swipe options for Instant Apps","name":"moninstantapps_swipe","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:28:17","modified":"2024-03-18 18:40:58","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1163,"height":598,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","medium-width":464,"medium-height":239,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","medium_large-width":768,"medium_large-height":395,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","large-width":1163,"large-height":598,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","1536x1536-width":1163,"1536x1536-height":598,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","2048x2048-width":1163,"2048x2048-height":598,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe-826x425.png","card_image-width":826,"card_image-height":425,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonInstantApps_Swipe.png","wide_image-width":1163,"wide_image-height":598}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/doc.arcgis.com\/en\/instant-apps\/latest\/get-started\/about-instant-apps.htm"},{"acf_fc_layout":"content","content":"

The options allow a Preview of the app template to see what it could look like without actually building the app. I chose Media Map for my app template. The swipe option is available in full-access mode, which requires turning off Express Mode.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281932,"id":2281932,"title":"Turn Off Express Mode","filename":"MonTurnOffExpressMode-1.png","filesize":57654,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/monturnoffexpressmode-2","alt":"Turn Off Express Mode","author":"19381","description":"Turn off Express mode in Instant Apps for full configuration capabilities. ","caption":"Turn off Express Mode in Instant Apps","name":"monturnoffexpressmode-2","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:46:20","modified":"2024-03-11 21:46:53","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":597,"height":340,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","medium-width":458,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","medium_large-width":597,"medium_large-height":340,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","large-width":597,"large-height":340,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","1536x1536-width":597,"1536x1536-height":340,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","2048x2048-width":597,"2048x2048-height":340,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","card_image-width":597,"card_image-height":340,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/MonTurnOffExpressMode-1.png","wide_image-width":597,"wide_image-height":340}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

The left-hand \u201cInteractivity\u201d menu contains a \u201cModify\u201d section that allows you to configure tools to modify the map.
\nScrolling down brings up the \u201cSwipe tool\u201d toggle, and switching it on reveals the layer options.<\/p>\n

The goal was to show \u201cThen\u201d on the left, or \u201cLeading layers\u201d, and \u201cNow\u201d on the right, or \u201cTrailing Layers\u201d. I turned on 1905 Building Footprints and the USGS Topo maps for the Leading layers, and kept the Historic Places data layer on too. The trailing layers display the current data, including 2020 Building Footprints and Historic Places.<\/p>\n"},{"acf_fc_layout":"content","content":"

From here, there are options to style the heading, the title, and other app components that are customizable.<\/p>\n

Take a look at my final Then & Now Swipe Map | Metro Detroit <\/a> to explore a little bit of Detroit history and compare it to the map of the city as it stands today. <\/span><\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2281712,"id":2281712,"title":"Final Swipe Map","filename":"Final_SwipeMap.png","filesize":2973432,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\/final_swipemap","alt":"Then & Now Swipe Map","author":"19381","description":"Then & Now Swipe Map app of Detroit and Wyandotte, Michigan. \nCompare 1905 to today","caption":"Then & Now Swipe Map Detroit","name":"final_swipemap","status":"inherit","uploaded_to":2275802,"date":"2024-03-11 21:23:37","modified":"2024-03-18 22:57:25","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","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\/2024\/03\/Final_SwipeMap-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","medium-width":464,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","large-width":1920,"large-height":1080,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap-1536x864.png","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","2048x2048-width":1920,"2048x2048-height":1080,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap-826x465.png","card_image-width":826,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/Final_SwipeMap.png","wide_image-width":1920,"wide_image-height":1080}},"image_position":"center","orientation":"horizontal","hyperlink":"https:\/\/www.arcgis.com\/apps\/instant\/media\/index.html?appid=c58b3c83f0e64b24bef24665d878c21c"},{"acf_fc_layout":"content","content":"

Now I want to try this with other cities I\u2019ve lived in, comparing other historical map vintages. There are so many options to choose from, and so much data in the Living Atlas to be discovered and layered together – the possibilities are limitless.<\/p>\n"}],"related_articles":"","card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/ThenAndNowCard.jpg","wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2024\/03\/ThenAndNowBanner.jpg"},"yoast_head":"\nThen & Now Swipe Map<\/title>\n<meta name=\"description\" content=\"ArcGIS Blog | Then and Now Swipe Map\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.esri.com\/arcgis-blog\/products\/instant-apps\/mapping\/then-now-swipe-map\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Then and Now Swipe Map\" \/>\n<meta property=\"og:description\" content=\"Create a Then & Now comparison swipe map using USGS Topo Map Explorer and Living Atlas data. 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