When you import a project from PATB, OrthoEngine reads the PATB project file you specify to determine the location of:
- patb_eo.txt: exterior orientation
- patb_img.im: image location of points
- patb_cntl.con: ground coordinates of image points
The project you are importing must meet the following requirements:
- The selected folder must contain at least the image coordinates and ground coordinates of points.
- The information in the imported file or files must be consistent. Each must have image-center coordinates, exterior orientation (EO), when available, and points must have both ground and image coordinates. If there is a discrepancy between these files—for example, if a point has only image coordinates or ground coordinates—the point cannot be imported. Similarly, if some of the images have EO information, the EO for all images must be imported. For information on importing EO data, see Importing GPS/INS or exterior orientation data from a text file.
- The image and point IDs are retrieved exactly as written in the image and coordinates file.
Mapping information from your PATB project to OrthoEngine can be one to many or many to one:
- If there are more images in your PATB project than your OrthoEngine project, only the information relevant to the images in the OrthoEngine project is retrieved.
- If there are fewer images in your PATB project than your OrthoEngine project, the available information is still retrieved, but block bundle adjustment cannot be performed until the information (EO and points) for the missing images is entered. Consider entering the necessary information to allow block bundle adjustment prior to importing your PATB project.
- If the value for Point ID in your PATB project matches an existing one in your OrthoEngine project, the one in your PATB project will be used, and it will overwrite the OrthoEngine one.
- Discrepancy between the number of points in both projects is allowed. Importing a PATB project into an existing OrthoEngine project does not remove any of the existing observations, such as images, GCPs, TPs, or EO for a given image. Instead, the existing data in OrthoEngine—image location, as an example—is augmented by any additional information imported from PATB. Information on the same observation, such as existing GCPs and TPs, will be overwritten, but any existing OrthoEngine information not available in the PATB external project is retained.
- Points in your PATB project must have X, Y and Z image and ground coordinates. If a point is missing any of this information, it is not imported.
- When the imported project contains the calibration information on more than one camera, only the first one is imported.
To import a project from PATB