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Disk-based job system and improved analysis #57
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Previous address did not work/was confusing
Was unnecessary and confused users
Previously the polygon was rotated to align with the identified reef edge and only rotated a certain number of times to reduce computational cost. However, the reef edge was based on the available outlines which are problematic in some cases as they may not represent the actual reef edge (when compared to the bathymetry data). Instead, we rotate and assess the polygon in steps of 10 degrees to identify the approximately optimal rotation.
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FYI @arlowhite am merging this now. Datasets being uploaded too as discussed |
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Adds a naive disk-based job system to avoid duplicate work being triggered.
Also mingled into this PR (bad practice I know) are improvements to the analyses for accuracy.
These changes depend on an updated dataset that will be made available shortly.
In short:
We now search for an approximately optimal candidate location by assessing rotations of their indicative polygons in steps of 10 degrees (this is somewhat arbitrary to balance computational cost, and can be adjusted).
The previous implementation heavily favoured straight vertical/horizonal rotations
The reason for this turned out to be the vector representation of the raster, which defaults to the bottom left corner of each pixel rather than the centroid:
Correcting this resulted in more accurate and diverse rotations: