• Tips and Tricks

    Hosted Feature Services: Did you know?

    Feature services can be used as input features when running analyses.  That’s right, while using analysis tools such as clip or buffer, just point to a RIGIS feature service as the features to be clipped, buffered, or as the clip “cookie cutter.”  These data do not need to be downloaded;  you work with them directly from the hosted environment on ArcGIS Online. I am using ArcGIS Pro to describe this operation but the similar process would apply to ArcMap as well. Example: Clip feature service using local area of interest polygon data. Add the hosted feature service – Flood Hazard Area to the map. Add local polygon data to use…

  • Data

    Where to go for Parcel data

    This is by far the most frequently asked question.   Currently, parcel data is managed by individual towns and cities. The frequency of updates and the currentness of those data does vary by municipality. The map below provides information on the status of digital parcels in the state.  In the map, click on a town polygon to obtain links to online GIS resources as well as the GIS point of contact.  Information on individual towns can also be obtained here. Answer: Parcel data do need to be obtained by contacting the specific town/city of interest.   This map was created by the Rhode Island Statewide Planning Program and will be updated on an…

  • Data,  Tips and Tricks

    Download Image Service Tiles

    Last post we looked at how to connect to the RIGIS image services within desktop GIS.  Did you know that you are able to download selected tiles from these image services within ArcMap and ArcPro?  Let’s step through how: SELECT TILES TO DOWNLOAD Add an image service layer to your map. Zoom in on an area. Use the select tool to define an area of tiles to download (draw a rectangle or select an area by just clicking) NOTE: the download operation is limited to 20 tiles at a time. Once the tiles are selected, you may need to remove the overview extents that are selected.  Follow the appropriate workflow:…

  • Data

    Connect to Image Services

    Ready to start using the new 3- inch pixel resolution, true color aerial images captured April 24 – May 7, 2019?  Try connecting to the RIGIS image server to begin using these resources in your map and online products.  While these images are not traditionally orthorectifed, they do provide incredible detail. ArcGIS Pro Add Data: Select Portal > All Portal This will allow a search of all ArcGIS Online public data including RIGIS data holdings. In the Search bar type, “RIGIS aerial 2019“ The results listed show a grouping of data for each flight time period.   Each flight time period includes 2 Imagery layers and one Tile layer. The Tile…

  • Data

    Initial Release: Statewide Aerials; Fall 2018, Winter 2018/19, and Spring 2019

    The Rhode Island Department of Transportation has contributed three new statewide aerial imagery collections to RIGIS! All imagery are 3-band, true color, with a spectacular 3-inch spatial resolution. They consist of: Fall 2018 Leaf-on Capture date range: October 14 – November 8, 2018 Winter 2018/19 Leaf-off Capture date range: November 24, 2018 – January 15, 2019 Spring 2019 Leaf-off Capture date range: April 24 – May 7, 2019 They are currently accessible via both ArcGIS image services and hosted ArcGIS Online tile layers via the URLs listed above. Traditional file download for these image collections is expected to be made available in Fall 2019, after a new web server is…

  • Tips and Tricks

    Webmap to Apps

    Learn how to share your web map as an application. This cascade app steps through the process of saving and building two different applications from the same webmap.  Discover how to highlight your information and capture the attention of your audience.

  • Uncategorized

    Important Security Update

    PRIORITY:  TLS 1.2 security implementation will be enabled April 16, 2019. From Esri Technical Support: As part of improving ArcGIS Online security, Esri will require TLS 1.2 connections for ArcGIS Online services starting on April 16, 2019. Esri software that connects to ArcGIS Online will be affected by this change. To ensure continued access to ArcGIS Online services, you must take action prior to the implementation of TLS 1.2. Important Information from Esri: Esri Software Products Affected by TLS 1.2 Implementation Important Updates for the ArcGIS Platform and Transport Layer Security (TLS) Protocol Support

  • Tips and Tricks

    Don’t Need it All? Try Filtering!

    At times you may not need to download an entire GIS dataset. For instance, the contour line datasets available from RIGIS are quite large and can be slow to draw on your screen. The RIGIS data clearinghouse gives you the option to download a portion of a dataset. You can do this by using the filter tools. Note to desktop GIS users: RIGIS datasets cannot be subset via clips, intersects, etc, via the website. However try adding these a RIGIS feature service to your next desktop GIS project, and then running these tools! You’ll be pleasantly surprised. To filter a dataset using a table on the RIGIS data clearinghouse, first head over there: http://www.rigis.org.   Find a dataset you’re interested in working with. In this case, I’ve chosen…

  • Data

    KML and RIGIS Vector Data

    Most of the vector GIS datasets (e.g. roads, land use, benchmarks, etc.) distributed by RIGIS are accessible via KML. KML is widely supported by mapping software and apps such as Google Earth and Esri ArcGIS Earth. These KML linkages are readily available from most of the RIGIS vector dataset description pages. Head over to the RIGIS data clearinghouse: http://www.rigis.org Try browsing through the different data categories, or try the search bar to find the dataset you’re interested in. In this example, we’ve searched for the keyword “911” to find the RI E911 road centerline dataset. Look for the “Download” menu on the right-hand side of the page. If you click…