Exporting the math model

You can export the math-model solution as a binary segment in the PCIDSK file (.pix) containing the raw image. You can use this feature to re-establish the computed math model in a future project or use it in projects outside OrthoEngine.

If you export the math-model solution to another GDB-supported format, the math model is saved in a PCIDSK file linked to the original file. When you open the file in another program, such as Focus, it will open in the original format and import the math model from the linked PCIDSK file.

An important aspect of exporting a model is to include a description. The description helps you—and most importantly, others—understand the relevance of the model. The following table provides the math-model names and basic descriptions you can use.

Table 1. Math-model types, names, and descriptions
Math model	Name	Description
ADS	ADSMODEL	ADS model segment
Aerial Photography	APMODEL	Airphoto model segment
Satellite	MODEL	Satellite model segment
Rational Functions	RFMODEL	Rational functions model segment
Polynomial	POLYMDL	Polynomial model segment
Thin Plate Spline	TPSMODEL	TPS model segment
Radar	RTCSMDL	RTCS model segment

To export the math model

Under File for model export, select the file containing the model to export or, to select all files containing a model, click Select All.
Do one of the following:
- To save the model in a new segment added to the file, click Create new segment.
- To save the model by replacing a segment in the file, click Overwrite existing segment, and then in the box that appears, select the segment that you want to replace.
In the Description box, type a new description for the segment, as applicable.
Click Export.
The model is exported to the file you specified.