I'm an archaeologist and have been using photogrammetry to record rock art sites in northern Australia. That is working very well (we're using Agisoft Photoscan, it's fantastic).
My question relates to taking 3D models into ArcGIS 10.3 for further work. The end point I am aiming for is to be able to create vector datasets that represent the art within a geodatabase. This, I'm hoping, can be done by 'tracing' evidence of artwork to create new records within feature classes within a geodatabase, together with domains and so on to classify artwork. GIS 101, really. Getting to that point is the problem, as the imported models lack textures or meaningful symbology in ArcScene.
Can anyone recommend a general workflow for doing this, or good resources to help? ArcGIS helpfiles are a little vague around these issues. At present, and in brief, I have been:
- Exporting the model as a collada (*dae) file from photoscan.
- Downsampling/editing/ in meshlab
- Importing as a multipatch into ArcScene
That works fine, mostly, but how would one apply texture files? Also, others I have spoken to suggest exporting/creating LAS pointclouds, which also works, but again I am stuck with no meaningful symbology at the end of the journey.
As you can probably tell, the 3D modelling thing is new to me.