Delorme 6 Manuel D’Utilisation

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Registering Images 
297 
6.  Change the WorkFile name in the WorkFile text box if you want to save your 
previous point information. 
7.  Click Save.  
Deleting an Existing WorkFile 
To Delete an Existing WorkFile 
Use the following steps to delete an existing WorkFile. 
1.  Click the ImageReg tab and then click WorkFile
2.  Select an existing WorkFile in the WorkFile directory and click Delete.  
The workfile is deleted from the WorkFile directory. 
3.  Click Yes to confirm the deletion.  
The WorkFile is deleted from the WorkFile directory. 
Note
  The image to which it refers is not deleted. 
Hints for Placing Points 
Place control points in locations where it is easy to distinguish the same location on 
both the image and the map. For example, you might find it helpful to place control 
points at survey points, street intersections, or other point features.  
It is also important to remember that the more corresponding control points you 
place on your image and map, the better. A large number of control points should 
only increase the accuracy of your resulting map. 
Note  Collinear points should be avoided. A small number of points in a line will not 
produce a good solution. See example below. 
 
To Place Control Points on an Image With Flat Terrain