Aquaveo & Water Resources Engineering News

Utilizing Data Modification Tools in SMS

The Dataset Toolbox in SMS allows viewing your data in many different ways, while also being used to modify and create new datasets from already existing datasets. The different tools in the toolbox each use a specific set of functions to modify selected datasets.

One tool in the Dataset Toolbox that can prove to be helpful is the Filter tool. This tool creates a new dataset based on the selected filtering criteria.

For example, say you are filtering your numeric model output to show depths between the minimum and maximum depth, then you wish to filter the depth data for velocity between minimum and maximum range. This tool could help to show how a fish habitat changes over time or for any other purpose you can think of.

There may be multiple ways to accomplish this task, but one method would be to filter the velocity dataset to the desired range and then map that activity to the depth dataset. Using this example, you could do the following:

  1. Open the Dataset Toolbox.
  2. Select the Filter tool.
  3. Use the tool to filter the Velocity Mag dataset to the desired range and apply NULL outside the range.
The Filter tool in the Dataset Toolbox

The Map Activity tool is another tool that can be helpful. This tool maps the activity from one dataset to a second dataset. It helps show only the values of interest on a particular dataset. To continue the previous example:

  1. Select the Map Activity tool in the Dataset Toolbox.
  2. Using the dataset created in the previous steps, map the activity from the new dataset to the depth dataset (Value Dataset).

The new dataset will appear in the Project Explorer, showing the values of interest. If the dataset is a transient then a film loop could be made, showing how it changes over time.

The Filter and Map Activity tools are only two of many tools available in SMS’s Dataset Toolbox. Try out these tools and others in SMS today!

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Exploring Hide, Show, and Isolate in GMS

Many projects in GMS can end up being visually busy. Having a large grid and dozens of features can make it hard to see specific areas clearly. To help with this, GMS provides the Hide, Show, and Isolate functions.

How to Hide Cells

This feature allows you to select different project cells and simultaneously hide them from view in the Graphics Window.

  1. Select the individual, or group of cells that need to be hidden.
  2. Once it is highlighted, click the Hide macro in the toolbar, or right-click and select the Hide command.

Remember that when cells are hidden from view this does not mean they have been deleted from your project entirely. Even if they are not visible it is only necessary to select the Show macro on the toolbar and the hidden cells will reappear.

Also, hiding cells does not make those cells inactive. They will still be included in your model run.

How to Show Cells

To reverse the hidden elements, click the Show macro in the toolbar and any hidden cells in your project will reappear. This can be important if you have inherited a project and suspect there are hidden cells.

Isolating Cells

Isolating cells hides cells that are not selected, unlike Hide which hides the selected cells. To isolate cells:

  1. Select the cells in the Graphics Window you wish to isolate.
  2. Once cells are highlighted, select the Isolate macro on the toolbar, or right-click and select the Isolate command.

Using a Polygon

Another option for isolating or hiding cells is to use a polygon in the map coverage. To do this:

  1. Right-click on the selected polygon.
  2. Click Select Intersecting Objects from the menu that appears.
  3. In the Select Objects of Type dialog choose the geometric object to use.
  4. With the cells selected, you can now use the Hide or Isolate function.
Isolating cells using a polygon

Try using the Hide, Show, and Isolate features in GMS today!

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