Adding a Line Seeder

Seeders in RocFall are the means by which you specify the initial conditions of falling rocks. Line Seeders are used when you want to specify a set of starting locations. For more information on line seeders, see Overview of Seeders in RocFall and Seeder Properties in RocFall. To add a point seeder, see Adding a Point Seeder in RocFall.

To add a line seeder:

1. Select Add Line Seeder on the toolbar or the Seeder menu.
   The cursor changes to a crosshair.
2. Use the cross-hair to graphically select the location of the first vertex of the line seeder (snapping is useful here) or type the vertex coordinates in the prompt line and press Enter.
3. Select the location of the next vertex of the line seeder as above.
4. Repeat step 3 until you have specified the entire line seeder.
5. Press the Enter key.
   The Seeder Properties dialog appears.
   
6. Enter the Number of Rocks (Rocks to Throw).
7. Select one or more Rock Types from the list. At least one Rock Type must be selected.
8. Specify the Initial Conditions.
9. Click OK.