Hi Guys,
matt07lx,
Sorry for such a long delay to reply to your question.
Yes in fact you're right, it's only a kind of guided approach to define an axe.
But I finally succeeded in creating a scrit inspired from this topic :
http://www.agisoft.com/forum/index.php?topic=3996.0
and the reference Chris gave us :
Hello matt07lx,
have a look at this paper: https://www.academia.edu/12557650/The_Use_of_Structure_from_Motion_for_the_Documentation_of_Archaeological_Profiles._The_Introduction_of_a_first_workflow_to_creating_a_profile_drawing_with_Agisoft_Photoscan_Professional_QGIS_and_GeoTiffExaminer_-_The_English_Translation .
Greetings,
Chris
My script is mainly for an archaeological use in combination with GIS Software, like Qgis, but you may find some parts fitting your needs.
I'll try to publish later a complete demonstration of the workflow, but here are the main things the script does :
1 - Copy georeferenced chunk ( a pop-up window asks for the index number of the chunk to copy and a second one asking for the number to give to the profile to be extracted ). Fit the Bounding Box to CRS (thank's Alexey!). Georeferenced marker are deleted, but chunk is still in CRS.
2 - Create three georeferenced markers from the front face of the bounding box (named PO- PX-PY) and two other ones (same PO-PX but with a translation to fit a plane this time) . A popup window invite you to save PO and PX in csv file (with coordinates X,Y,Z and X2, Y2). I've also made a shortcut ( point of Numpad) that fix viewpoint with front face of the bounding box. It helps to rotate and resize the Bounding Box for being as most effective as possible in defining the profile to extract.
3- Build orthomosaic with markers (PO and PX) projection, but editing it's coordinate with PO_X2 and PO_Y2.
Now you get an nice vertical ortho "georeferenced" you can directly tranfer with csv markers in GIS software, for CAD Draw . Very useful for Atlas generation of archaeological structures, in Qgis for example : you can easily get the plan and the profile on the same location!
The script, for the moment, is written in French, I apologize for the inconvenience.
Hope it will help,!