To help determine optimal grid refinement and analysis of bathymetric data, Grid+ allows provides options for viewing elevation profiles of cross-sections , such as DEMs (Digital Elevation Model), and TIN (Triangulated Irregular Network). How to view This page describes the options available for viewing elevation profiles for each type of data is described below.
View elevation profile of cross-sections
Suppose that there is When a cross-section data file . We will import the data into is availalbe, it may be imported and view in Grid+. Click To do this, click the Import button from the main toolbar, then select Import Cross-Sections as shown in Figure 1. After selecting that option, the Import Cross-Sections form will pop up, browse be displayed. Browse to the cross-sections file, then select Open button as shown in Figure 2. The Coordinate System form will displaybe displayed, and we should must define the correct projection for the cross-sections section data file, then click . Click the OK button to finish as shown in Figure 3.
After importing the cross-section data, to locate in the cross-section location, RMC on the XS layer in the Layer Control, then select Zoom to Layer as shown in Figure 4.
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Figure 4 Zoom to Layer.
Open When the cross-section data file (e.g. by Notepad++ or Notepad), and we will see is opened in a text editor, it is seen that the last column (the third one) is contains the elevation value, as shown in Figure 5. Based on these values, we will set a range for the elevation color ramp of the cross-section . From the keyboard, press may be set. Press Alt + C on the keyboard, and the Specify Elevation will pop up, enter Minimum and Maximum form will be shown. Enter minimum and maximum values in the form, then click the OK button as shown in Figure 6. The color ramp for cross-sections will be displayed as shown in Figure 7.
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Next, click the Add a New Polyline button from the toolbar as shown in Figure 8. Drawing a starting Draw the start point of a polyline by LMC and an ending the end point by RMC. Note that the polyline must overlay a cross-section. Select the Selection mode by pressing the S key and then LMC on the polyline to select. Next, LMC to on display options, and select View Cross-section Profile as shown in Figure 9. The cross-section profile is shown as the plot in Figure 10.
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There are three buttons on the Cross-section Elevation Profile which allows the saving the profile out as shown in Figure 11. They are described below.
| Option | Description |
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| This option allows saving saves the profile to a file, which can be saved in *.txt or *.dat format. After saving the profile to an external file, open the file in Notepad++ or Notepad. We will see there are four columnsa text editor. Four columns will be displayed. The first two columns are coordinates (X,Y), the third one is the elevation (Z), and the last one is the length (L) calculated from the starting point. |
| This is copy profile data button. Once this button is selected, the profile is copied to the clipboard, and then we can paste to Notepad be pasted to a text editor or Excel. The data contains two columns, one is X values, and the other is Y values of the plot. |
| This option allows saving the profile image to a file, which can be saved in different formats such as *png, *jpg, etc as shown in Figure 12. |
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