Import External Layers
- Duy Pham
- Kester Scandrett
The Import External Layers option allows the user to import a wide variety of different layers, including labeling and geo-referenced maps, XYZ data, ADCP data, DEMs, and sediment cores. Google Maps © standard .KML files may also be imported.
For labels, EE uses a file with the same name as a data file but has a second file with a .LBF extension to save the individual label formats.
To import layers, click on the button at the bottom of the Layer Control as shown in Figure 1, and the Open External Layer form appears.
To import background images the user should select Georeferenced Images (*.geo; *.jgw; ...) as the data file format, then browse to the image file and click Open button as shown in Figure 2 and Figure 3. After clicking Open button, a background image layer is added to Layer Control as shown in Figure 4.
To import other layers files, the user should select data file format, for example a shoreline ( *.p2d) then browse to the layer file and click Open button. After clicking Open button, a layer is added to Layer Control as shown in Figure 5.
Figure 1. Import an external overlay layer.
Figure 2. Select format file for background image.
Figure 3. Open background image file.
Figure 4. Background image added to Layer Control and displayed in 2DH View.
Figure 5. An overlay layer added to Layer Control and displayed in 2DH View.
Import measured ADCP transects file to compare to model result in the 2DH View. The measured ADCP transect file should be in Tecplot file format (*.plt), as shown below. The first two columns are the Easting (X) and Northing (Y) coordinates in the UTM meter. The last two columns are component velocities, East-West (V_E_W) and North-South (V_N_S) velocities.
TITLE = "ADCP 2D Depth Averaged Data"
VARIABLES = "X", "Y", "V_E_W", "V_N_S"
ZONE I=58, J=1, F=POINT, T="2024-12-19 13:17"
516547 5050427 -0.035 0.014
516554 5050430 -0.133 0.213
516561 5050433 -0.073 0.282
516569 5050437 -0.059 0.233
516577 5050440 -0.115 0.258
516586 5050445 -0.159 0.374
516594 5050449 -0.151 0.370
516602 5050453 -0.135 0.325
516610 5050458 -0.168 0.372
516617 5050463 -0.152 0.413
516625 5050468 -0.201 0.389
516633 5050473 -0.153 0.360
516640 5050477 -0.179 0.388
516648 5050481 -0.145 0.277
516656 5050487 -0.191 0.426
516664 5050494 -0.181 0.439
Select the data type option, as shown in Figure 6, select the ADCP Data file, and click the OK button. We can change the properties of the ADCP data vector by RMC on the data layer in the Layer Control and then select the Properties option, as shown in Figure 7.
After adding the velocity vector of the model in the 2DH View, we can change the velocity vector’s properties by RMC on the modeled layer in the Layer Control and then select the Properties option, as shown in Figure 8. To set the velocity vector of ADCP data and model to have the same tail (starting point), select the Location File option, then click the Select button. Browse to the location file which is a file with *.p2d format. This p2d file is generated by taking X, Y columns of the ADCP data Tecplot file.
