##Introduction AdVersion serves as a proxy for versioning ADCIRC model meshes using Git. The code seeks to create a mesh format other than the standard ADCIRC mesh format that:
- Reduces the changes caused to the file by editing a mesh
- Provides an efficient algorithm, and
- Is easy to use
##Dependencies
| Package | Source |
|---|---|
| QADCModules | https://github.com/zcobell/QADCModules.git |
| Metis | http://glaros.dtc.umn.edu/gkhome/metis/metis/overview |
| libGit2 | https://libgit2.github.com/ |
| Qt | http://qt.io |
##Methodology
###Removing Node Numbers In order to create a unique ID that is immutable, AdVersion uses cryptographic hashes constructed from the nodal positioning. This allows the code to generate a completely unique identifier for a node that does not change in time, and thus, will not change the mesh numbering
###File Storage Files are stored using a series of directories. ADCIRC Mesh nodes and elements are partitioned using METIS into a user specified number of domains. These partitions are generalized into rectangles so that future nodal and elemental searches occur in O(n) time instead of O(n*m) time.
By partitioning the mesh into small subdomains, mesh edits generally create trivial changes to the files within the folder structure making the new format an excellent candidate for versioning using Git.
##Disclosure The code is not production ready. Any use is at the user's own risk and I take no responsibility for meshes that become unrecoverable. If you do encounter an issue, please submit a bug report so the first release version can be improved.