{"id":121741,"date":"2009-04-17T18:05:00","date_gmt":"2009-04-17T18:05:00","guid":{"rendered":"http:\/\/www.esri.com\/arcgis-blog\/products\/product\/uncategorized\/quick-dirty-method-tips-for-creating-building-footprint-features\/"},"modified":"2009-04-17T18:05:00","modified_gmt":"2009-04-17T18:05:00","slug":"quick-dirty-method-tips-for-creating-building-footprint-features","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/product\/mapping\/quick-dirty-method-tips-for-creating-building-footprint-features","title":{"rendered":"Quick & dirty method & tips for creating building footprint features"},"author":4351,"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":[38211,38471,23211],"industry":[],"product":[],"class_list":["post-121741","blog","type-blog","status-publish","format-standard","hentry","category-mapping","tag-arcgis-methods","tag-data-modeling","tag-map-data"],"acf":{"short_description":"By Charlie Frye, Esri Chief Cartographer\n\n\n\nFrom time to time we've had to create some building footprint data. A colleague was in my off...","flexible_content":[{"acf_fc_layout":"content","content":"

By Charlie Frye, Esri Chief Cartographer<\/strong><\/p>\n

\"quick<\/p>\n

From time to time we’ve had to create some building footprint data. A colleague was in my office yesterday looking at the map to the right, and remarked that he thought that adding building footprints to maps “humanizes” the map. An interesting observation, and one that I’m not inclined to argue against.<\/p>\n

We’ve learned a few tricks for making haste with little or no waste to produce building footprint data. The premise is that you’re starting with a properly rectified ortho-image base (it’s also helpful if your elevation base is rectified the same way–it makes the ensuing cartographic products look much better).<\/p>\n

First, get your data model sorted out.\u00a0 For building footprints, we use a polygon feature class that typically has two essential fields:<\/p>\n

    \n
  1. Name: <\/strong>[type = TEXT, length = 64]<\/li>\n
  2. BldgType: <\/strong>[type = LONG INTEGER] We typically have a coded value domain on this field doing something like:\u00a0 0 = General Case, 1 = Commerical – Retail, etc.\u00a0 We have categories for: Education, Industrial, Religious, Healthcare, etc.\u00a0 Many places use their zoning codes as a starting point for setting this up. One tip is to set the default value to your most common type of building, e.g., “General Case”.<\/li>\n<\/ol>\n

    Second, set up ArcMap so you can easily use the tools you’ll need most. The key is to quickly produce lots of buildings in order to avoid situations where you have to drag your mouse all over your screen for common tasks, and to minimize mouse clicks for common tasks. To do this create a new custom toolbar<\/a>, here is a good set of tools to start with:<\/p>\n

    \"Method<\/p>\n

    All of these tools are already in ArcGIS, in these Categories on the Customize dialog’s Commands tab: Editor, Advanced Editing, or Pan\/Zoom.\u00a0 The idea is that this toolbar floats inside of the data view of ArcMap, close to where you’re editing–minimizing the distance of the cursor to whatever you need next.<\/p>\n

    Editing Methods & Tips: <\/strong><\/p>\n

      \n
    1. Since most buildings are rectangles or composed of rectangles, rotate your data frame so that your imagery shows the buildings as horizontally oriented.\u00a0\u00a0 Now you can use the rectangle tool to create a new features.\u00a0 This ensures you have right angles where right angles ought to be.\u00a0 Don’t waste time using the Sketch tool trying to do vertex by vertex data entry.<\/li>\n
    2. Many buildings are a combination of rectangles.\u00a0 You can quickly digitize overlapping rectangles that cover a given building; to complete the building, select all of the buildings, and then Click Merge–having the custom toolbar is a big time saver here.<\/li>\n
    3. Set your snapping environment to snap to building vertexes and edges.\u00a0 You’ll find it easier to create “L” shaped buildings if you can snap to the outside corner of the “L”.\u00a0 You can follow the same logic to create buildings with complex shapes as well.<\/li>\n
    4. Use the Circle tool to create curves that are parts of circles.\u00a0 This works well since most curves on buildings are based on circles (the more complicated the curve, the higher the construction cost).\u00a0 You can either snap to tangent points on circles, or complete circles by snapping to corner vertexes.<\/li>\n
    5. For buildings with angles that the rectangle tool doesn’t easily handle, first try using the rectangle tool where you can–rotate your data frame one or more times to make this easy.\u00a0 Otherwise use the Sketch tool to create triangles that snap to your rectangle’s corners.<\/li>\n<\/ol>\n

      Using these methods to create buildings makes it possible to create hundreds of buildings in less than an hour.<\/p>\n"}],"authors":[{"ID":4351,"user_firstname":"Charlie","user_lastname":"Frye","nickname":"Charlie Frye","user_nicename":"cfrye","display_name":"Charlie Frye","user_email":"cfrye@esri.com","user_url":"","user_registered":"2018-03-02 00:15:58","user_description":"I am the Chief Cartographer at Esri and work on the Living Atlas Team. I have been with Esri in Software Products since 1994. I specialize in GIS engineering and information product design. I am the author of many global scientific and thematic layers on topics that include ecosystems, landforms, population, climate, emissions, etc. Contact me at cfrye@esri.com with questions or feedback.","user_avatar":""}]},"yoast_head":"\nQuick & dirty method & tips for creating building footprint features<\/title>\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\/product\/mapping\/quick-dirty-method-tips-for-creating-building-footprint-features\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quick & dirty method & tips for creating building footprint features\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.esri.com\/arcgis-blog\/products\/product\/mapping\/quick-dirty-method-tips-for-creating-building-footprint-features\" \/>\n<meta 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