[Bugfix] JS Digitizing measure : Provide map projection

[rldhont]

In OL sphere API documentation https://openlayers.org/en/latest/apidoc/module-ol_sphere.html for getLength and getArea, it is assumed that the default projection is ESPG:3857.
If the map is in EPSG:2154 projection, the getLength's error is arround 40% without projection provided.

Before the fix

After the fix

Funded by Conseil Départemental du Calvados

[3liz-bot]

The backport to release_3_7 failed:

The process '/usr/bin/git' failed with exit code 1

stderr

error: could not apply 991d72139... Tests: Update draw project
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config advice.mergeConflict false"

stdout

Auto-merging assets/src/modules/Digitizing.js
[backport-4730-to-release_3_7 c656d7740] [Bugfix] JS Digitizing measure : Provide map projection
 Author: rldhont <[email protected]>
 Date: Thu Sep 5 16:35:52 2024 +0200
 1 file changed, 2 insertions(+), 2 deletions(-)
Auto-merging tests/qgis-projects/tests/draw.qgs
CONFLICT (content): Merge conflict in tests/qgis-projects/tests/draw.qgs
Auto-merging tests/qgis-projects/tests/draw.qgs.cfg
CONFLICT (content): Merge conflict in tests/qgis-projects/tests/draw.qgs.cfg

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-release_3_7 release_3_7
# Navigate to the new working tree
cd .worktrees/backport-release_3_7
# Create a new branch
git switch --create backport-4730-to-release_3_7
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick 4778cacee791b43156c80eaa6081e2c2d83d1898,991d721399174ae9a907bcb5e7af156b7cd77eb5,01d0ef879e7243ce699a555227c3e873ac7d026a
# Push it to GitHub
git push --set-upstream origin backport-4730-to-release_3_7
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-release_3_7

Then, create a pull request where the base branch is release_3_7 and the compare/head branch is backport-4730-to-release_3_7.