Editing the Event Geodatabase
The Event Geodatabase is designed to facilitate straightforward editing with off the shelf tools available in ArcGIS. Some basic procedures will be performed on every fire which will be covered here. We will also present several tools and techniques that will aid in working with incident data in the Event Schema.
Regardless of the software being used, a major key to successful use of the Event GDB is Utilizing the Event Attributes.
Utilizing the Event Attributes.
When the Event Features are properly attributed, it's easy to use the Display Field under layer properties to leverage the Attributes window to efficiently update features.
Setting it to a field that best differentiates data for the task at hand (for example Collector Name, Feature Category, or Label) allows features to be quickly selected and updated.
Edit the Event Geodatabase in ArcGIS Pro – Combined PDF with instructions for the most common editing tasks.
The most important general practice when working with the Event Geodatabase in ArcGIS Pro is to leave the Event Features in the WGS 1984 Geographic Coordinate System that they are distributed in.
Due to current limitations in available geoprocessing functions, it is much simpler and more effective to only change the map data frame to the local projected coordinate system. This is still the best practice when using ArcMap as well, but it is much more significant in ArcGIS Pro.
Unlike in ArcMap, there are no edit sessions in ArcGIS Pro.
However, all edits must still be saved. Once edits are made in a map, the Save and Discard buttons will become available on the Edit ribbon tab.
To check the editability of the layers in a map, click the Status button on the Edit ribbon tab.
In the screenshot above, there is a local Event GDB, the National Incident Feature Service (NIFS), and a tiled base map service.
The Editing Status window breaks down the status of all the layers in the Table of Contents.
- The base map is not editable.
- The NIFS is “Editable with Warnings.”
- Edits cannot be discarded or undone.
- The master incident database is Editable.
Because editing is enabled on all available workspaces, when creating features it is vitally important to pay close attention to the Feature Template being used.
Renaming layers in the Table of Contents can help avoid confusion without affecting the underlying data.
- Leave the Event Features in WGS84.
- While Feature Services can be edited directly in Pro, those edits cannot be discarded or undone. Any errors will need to be fixed manually.
- Editing is enabled on all workspaces available. No need to select a single one, but pay close attention to what layer is being edited. Edits must still be saved.
Editing the Event Geodatabase in ArcMap – Combined PDF with instructions for the most common editing tasks.
While not as crucial as in Pro, it is still best practice to leave the Event Features in WGS84, as they are provided. This allows for easy geometry calculations and eliminates potential human error when using the Project Tool.
Make the layer you are editing the only selectable layer by right-clicking on the layer in the Table of Contents and selecting Selection > Make This The Only Selectable Layer.
Nothing is worse than losing 20 minutes of edits when ArcMap crashes. It will happen eventually.
Additional ArcMap Resources
- ArcMap Editing Tips and Tricks
- ArcMap Editing Tips and Tricks (Esri)
- Editing Tips - Tracing Features (Esri)
- Editing Tips - Vertices and Segments (Esri)
Event GDB Editing Intro – GISS Introductory Class
Presentation Notes – Event Geodatabase Editing Intro
Editing Event Polygon
Generally, the Event Polygon is the first thing edited when there is updated incident information available. The primary feature category in this layer the Wildfire Daily Fire Perimeter, aka the Fire Polygon.
The Fire Polygon is the basis for creating line features for Uncontrolled Fire Edge and Contained Fire Edge. As well as used to calculate the fire acreage.
Remember to always export the Fire Polygon to the Progression GDB after every update.
Editing Event Polygon in ArcGIS Pro – Detailed instructions for the most common editing tasks on the Event Polygon feature class.
Editing the Event GDB – Polygon
Editing Event Line
Generally, the second Event feature class to be edited when new incident information is obtained. The fire perimeter lines must be adjusted to match any updates to the Fire Polygon, followed by any additions or modifications to independent line features.
Editing Event Line in ArcGIS Pro – Detailed instructions for the most common editing tasks on the Event Line feature class.
Editing Event Line in ArcMap – Detailed instructions for the most common editing tasks on the Event Line feature class.
Editing the Event GDB – Line
Editing Event Point
Generally, updates to the Event Point feature class are performed last as they are largely independent of the line and polygon features. Often it is also helpful to have the other features up to date first as this can aid in referencing the location of new point features.
Editing Event Point in ArcGIS Pro – Detailed instructions for the most common editing tasks on the Event Point feature class.
Editing Event Point in ArcMap – Detailed instructions for the most common editing tasks on the Event Point feature class.
Editing the Event GDB – Point