Describe the New Feature

The vx_grid library in MET is being reimagined as a lightweight wrapper of the Proj library. This adds the Proj library as a required dependency for MET. This task is to install Proj on the development machine, seneca, and update MET's configuration script and Makefiles to link to them. Basically, any Makefile currently linking to the vx_grid library should now also link to Proj.

Remember to update the development environment setup scripts in MET/internal/scripts/environment accordingly.

Recommend coordinating with @jprestop to discuss the implications on the compile_MET_all.sh script and the various supported platforms.

Recommend updating the User's Guide during this process as well to clarify the dependencies.

Remember to update METbaseimage (https://github.com/dtcenter/METbaseimage/blob/main/Dockerfile) to install Proj as well.

Acceptance Testing

List input data types and sources.
Describe tests required for new functionality.

Time Estimate

4 days?

Sub-Issues

Consider breaking the new feature down into sub-issues.
None

Relevant Deadlines

List relevant project deadlines here or state NONE.

Funding Source

7705991 MPAS Participation

Define the Metadata

Assignee

• Select engineer(s) or no engineer required
• Select scientist(s) or no scientist required

Labels

• Select component(s)
• Select priority
• Select requestor(s)

Projects and Milestone

• Select Repository and/or Organization level Project(s) or add alert: NEED CYCLE ASSIGNMENT label
• Select Milestone as the next official version or Future Versions

Define Related Issue(s)

Consider the impact to the other METplus components.

• METplus, MET, METdataio, METviewer, METexpress, METcalcpy, METplotpy
• Update METbaseimage to complete the transition to the Debian 12 (bookworm) base image METbaseimage#12

New Feature Checklist

See the METplus Workflow for details.

• Complete the issue definition above, including the Time Estimate and Funding source.
• Fork this repository or create a branch of develop.
  Branch name: feature_<Issue Number>_<Description>
• Complete the development and test your changes.
• Add/update log messages for easier debugging.
• Add/update unit tests.
• Add/update documentation.
• Push local changes to GitHub.
• Submit a pull request to merge into develop.
  Pull request: feature <Issue Number> <Description>
• Define the pull request metadata, as permissions allow.
  Select: Reviewer(s) and Development issues
  Select: Repository level development cycle Project for the next official release
  Select: Milestone as the next official version
• Iterate until the reviewer(s) accept and merge your changes.
• Delete your fork or branch.
• Close this issue.