Navigation:  How To > How to Configure... > Custom Tools > Oblique Aerial Images > Preparation of footprints

For linking the footrpints with the oblique aerial images in WebOffice 10.8 SP2 it is essential that an attribute is provided in the service which contains the essential information in connected form. This is the following information:

 

oImage_Number

This is the unique number of the oblique aerial images.

 

oFlight_Direction

The flight direction indicates the direction in which the aircraft flew when the image was taken. The values must be in the following form: "N", "S", "W", "O"

 

oCamera_Orientation

Camera orientation refers to the relative orientation of the camera to the aircraft during shooting.

Note: The values used here are crucial for the correct naming of the image files and the directory structure. For more information, please refer to the chapter Preparation of Images.

 

oStrip

This is the strip number of the oblique aerial images.

 

oDirection_of_View

The direction of view is the compass direction in which the camera was aligned when the oblique aerial images were taken. The values must be in the following form: "Nord", "Süd", "West", "Ost"

 

oLAT

The field represents the Y-coordinate of the centroids of the footrpints and can be calculated with the function "Calculate Geometry" in ArcMap:

 

 

For "Property" select "Y Coordinate of Centroid" and for "Units" the unit "Decimal Degrees":

 

 

 

 

oLON

The field represents the X-coordinate of the centroids of the footrpints and is calculated analogous to "LAT". Here, "X Coordinate of Centroid" must be selected in the Field Calculator under "Property".

 

 

If all these fields are present in the data in the correct form, the Field Calculator can be used to calculate the attribute "Bildinfo", which is the key field for the entire application. Provided that the fields are named as in this manual, the following command can be executed to calculate the attribute "Bildinfo" in the Field Calculator:

 

[Image_Number] &"_"& [Flight_Direction] &"_"& [Camera_Orientation] &"_"& [Strip] &"_"& [Direction_of_View] &"_"& [LAT] &"_"& [LON]

 

 

If other field names were used, the command must be adapted accordingly: