Workspaces – Creating and managing workspaces
Workspaces let you change the terrain and observe how the changes affect flood risk, e.g. by adding a levee directly in SCALGO Live or by uploading construction plans from other GIS tools. This enables you to find the best solutions suitable to prevent flooding. When using workspaces, you have to choose whether you want to work with flooding in relation to sea-level rise or flash flooding.
You can always change which analysis you want to run during configuration. This enables you to work with both types of analyses in your workspace.
Note that workspaces are standalone and effects of water crossing the workspace boundary are not considered. Therefore it is important that you create your workspace large enough to avoid issues across the boundary. For instance you should consider the watershed of your project area for flash flood map workspaces and be sure to include the necessary dikes and similar structures for sea-level rise computations.
Standard workspace creation
- Select the workspace tool in the toolbar.
- Select the type of analysis you want to work with, either Flash Flood Map or Sea-Level Rise.
- Select your workspace area. You can select an area by marking a squared or an arbitrary polygon.
- If you regret your first drawing, select clear selection to redraw the desired area or pull directly in one of sides of the polygon to change its size or form.
- Name the workspace (it is by default named after a road in the workspace).
- Select create workspace.
Once created, you can interactively edit the elevation in the workspace area using a variety of different tools.
Advanced workspace creation
There are two advanced ways of creating a workspace:
- Import an existing raster model to SCALGO Live by selecting import and browse your PC. See more about importing rasters in the section called importing existing terrain data.
- Use an existing terrain model based directly on one of our elevation models by selecting existing model.
- Now, select your workspace area. You can either choose to mark a square, or an arbitrary polygon.
- Name the workspace.
- Select your desired elevation under elevation in the dock by selecting the editing button
You can also specify a boundary polygon for workspace creation and downloads by dragging a vector file (GeoJSON, GeoPackage, Shapefile, Tab) onto the creation/download dialog.
The workspace dialog enables you to edit the workspace features as well as computing the workspace analysis (see next section). The dialog is automatically opened when you create a new workspace, and can also be opening from the dock by clicking on the hammer icon on the workspace in the dock.
The dialog consists of three tabs that allows you to edit and explore information about your workspace. The first of these is the Tools tab that contains the various tools needed to editing the workspace elevation model.
Under the Actions tab you will find the following functions,
- Import existing raster model
- Recompute (run analysis)
- Select analysis to compute
- Import corrections (if available and not yet imported)
- Share the workspace
- Duplicate the workspace
- Export features of the workspace as .geojson
- Delete the workspace
NOTE: Based on the settings of your particular workspace, more options than shown above might be available.
The final tab contains information about your workspace. Of particular interest is the soil information section. This tells you how much soil has been removed or added relative to the original workspace elevation model and is used to compute the soil balance - how much soil needs to be brought into the project area (in case of a soil deficit) or transported away from it (in case of a soil surplus).
The information in the workspace information tab, and on the workspace analyses in the dock can be out of date if you have made changes to the workspace since the last time the workspace analysis was updated. If that is the case we display a big recompute button underneath the workspace dialog. The button is not available if the workspace is up-to-date. The tools tab and the actions tab above both show the button whereas the information tab screenshot shows an up-to-date workspace (in order to ensure that the soil information is correct).
Recomputing and configuring workspaces
Once you have edited your workspace elevation model, you can run analysis on the edited model and quickly see the impact of your changes.
You can configure the parameters to these models directly through the online interface.
To recompute the analysis:
- Select the icon for the workspace you want to recompute.
- Click the Compute or Recompute button in the bottom of the dialog, if there is no button then all of the information is up to date and no recompute is needed.
You can also recompute the analysis directly from the dock by clicking the green compute icon.
To configure what hydrological analysis tools are run during a recomputation, follow these steps:
- Hit the toolbox icon for the workspace you want to configure.
- Open the Actions tab
- Click Select Analysis ...
The available configuration options are:
- Sea levels
- Depression volume
- Flash Flood Map (either flow/ Watershed delineation or/and watersheds)
- Flooded analysis (similar to depression-free flow within the workspace)
NOTE: Depending on your setup, other options than those listed above may be available.
If hydrological corrections are available, and not yet part of your workspace, they can be imported by selecting "Import corrections...". The following screen shows details on the type of corrections available and lets you finalize the import.
To preview the corrections, locate the layer under the "Hydrological Corrections" section in the layer library and enable it. You can find information on the source of the corrections using the info (i) button for the layer.
If you want to share your workspace, select share… and you will be directed into account management. Here, you can describe your workspace and determine who should have access to your workspace.
If you want to grant other employees access:
- Use the organization list.
- Write an email to someone external, who has SCALGO Live.
Remember to press update access to save your changed settings.
There are two ways to delete a workspace. You can delete the workspace in the workspace toolbox or through the library.
How to delete a workspace through the workspace toolbox:
- Press delete workspace in the bottom of the toolbox Actions tab
- Press yes
How to delete a workspace through the library:
- Enter the library and find the particular workspace
- Move your mouse across the workspace
- Press the trash bin on the right side of the workspace name
- Press yes when asked whether to delete permanently
Accessing an existing workspace
If you want to access and edit an active workspace:
- Move your mouse across the workspace in the dock
- Click on the that appears besides the workspace name.