About Preparing the Project

After photos have been loaded, do any of the following to prepare for the build:

Set display of photos

§  Select the photos for which symbols are displayed

§  Select the size and color coding of the camera symbols that display for each photo

Study photos and modify photo properties

§  Navigate to a photo

§  View photos in the photo viewer

§  Project photos on the terrain to see if they fit the terrain imagery or to better understand their position

§  Show a color-coded map analyzing photo directional coverage in every point of the AT area

§  Show a color-coded map displaying the degree of overlap, i.e., for each point within the specified AT area, the number of photographs in which the point is visible.

§  Show a color-coded connection map that indicates the level of photo interconnection  

§  Modify photo and photo collection properties (in "Photo Management" chapter)

§  Use ground control points to position the model by associating specific locations (x, y, altitude) on the terrain with corresponding locations (in pixels) in three or more photos (in "Control Points" chapter)

§  Use tie points to establishing a correspondence between project photos and improve aerotriangulation results through identification of the same physical point in three or more photos (in "Control Points" chapter)

Generate a flat surface with correct texturing over a user-defined water body

§  Create a water body polygon

§  Import a water body polygon

Set the aerotriangulation and reconstruction areas

§  Set the AT area

§  Set the reconstruction area