Hi. I work as a GIS Analyst for a group called RS&GIS in the Department of Geography at Michigan State University. Daily, I work with geospatial data, developing datasets, analyzing patterns, configuring models, and creating maps. One of my most interesting roles as a GIS Analyst is developing web applications to share data with colleagues, collaborate with project partners, and present project results to funding agencies or the public. Web-based mapping applications are a great way to let users view and interact with your data and discover much more information than is available via a static map. Web applications can range from simple to very complex. A simple web application might center around mapping functionalities, enabling users to toggle between layers interact with data elements, such as revealing pop ups and dynamically adjusting content to the map scale, such as labels. Here's another example. This map has a single point layer configured to display with a specific clustering tolerance. As you navigate the map, the list of locations on the left updates to only display points currently in the map view. Each point has a pop up and within the pop up, there's a URL to a project report. The data contained within this project report is derived from the attributes of the GIS data. This application has a map displaying points, but also incorporates media such as images and videos. As you navigate the map, and click on a point, a linked video appears that can be played directly within the application. Applications can also emulate the appearance of a website, offering a platform to not just exhibit your geospatial data, but also provide comprehensive information about your project in one unified resource. Here, a web map is embedded. The map is similar functionality to previous examples. If a user wants a more immersive experience, they can also view the map in a full screen mode. Oh notable advantage of a layout like this is the consolidation of lots of information that can be parsed out by unique pages. The last example is an application that was developed as a crowdsourcing resource. The map could be accessed via mobile device or by a laptop or desktop. A splash screen appears with information about the project. It also indicates it was part of an NSF award. Once the map appears, the focus of the app is to allow users to navigate to a location along a shoreline, plot a point and identify a coastal issue. As part of the process, they're asked to upload an image of that issue. The data is then reviewed by a project manager, and if deemed appropriate, it appears on a public facing map. Planning on a GIS project, consider if your data or project results can be presented to others via web based geospatial application. Prepare your layers in a way that maximizes their value when presented to others. Examples of this are creating field aliases that are easily interpreted by users or using symbologies that are visually pleasing on a public facing map. Configure application themes, maps, tables, and pop ups to display focused data concepts so your audience engages quickly and you can retain their attention. Webmps and applications are a great way to incorporate creativity and design when sharing your geospatial information.
GEO 325, Guest Video: Web Applications by Joe Welsh
From Joseph Welsh March 25th, 2024
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