Page Comparison

Edit the generated 2500m isobath

1. Clear the display window by clicking the X button in the main toolbar.
2. In the folder 2. Seabed / 2500 meter Isobath right click atlantis's 2500 meter isobath and select Edit points and lines...
3. Click the Display button near the bottom of the Edit points and lines dialogue box in order to see the isobaths.
4. Select the Delete tab.
5. Inside the Delete tab, select By closed line tab.
6. Click the Start button, then digitize a closed polygon around the part you want to delete by clicking with the left mouse button.
7. Click Connect to Start and End in order to connect the last digitized point with the start point.
8. Click Delete points INSIDE. The part inside the closed polygon is now deleted.
   
9. Change the drop down menu from Save as an extra copy to Overwrite input dataset.
10. In order to store the changes in the Edit points and lines menu, click the Execute button at the bottom.
11. Click Cancel to close the Edit points and Lines menu.
12. Clear the display window by clicking the X button in the main toolbar.
13. In the folder 2. Seabed / 2500 meter Isobath right click atlantis's 2500 meter isobath and select the Display and confirm that the unwanted parts have been removed.
14. The Edit points and lines command stored the original 2500m isobath as a backup. Right click this dataset and select Delete.
15. Click OK.

Generate more bathymetric profiles in the East Sea area

Repeat the steps in the previous exercise and generate a few more profiles in the same area. You should have 3-5 profiles in the area.