A well in a radial grid is on the grid axis or on a face between angular cells, so no cells are intersected. Fall back to the innermost cell column placed by depth. Fixes empty PLT and RFT grid curves.
isFaceNormalsOutwards lazily computes whether cell face normals point outward
and caches the answer in m_isFaceNormalsOutwardsComputed. setFlipAxis was
mirroring the node coordinates without resetting that cache, so any consumer
that had triggered the lazy computation before the user toggled Flip X/Y kept
the pre-flip answer. The well-path/cell intersection in
RigEclipseWellLogExtractor::calculateIntersection then inverted the
entering/leaving flag the wrong way, causing the proper-pair filter in
populateReturnArrays to discard every intermediate cell along a perforation
interval - only the start and end cells survived through the
well-starts/ends-inside-a-cell fallback.
Reset m_isFaceNormalsOutwardsComputed when the flip state actually changes.
Add unit tests covering all four combinations of Flip X / Flip Y for both the
data-level node mirroring and the well-path/cell intersection (freshly-built
grid and interactive-toggle scenarios).
Refactored RigWellPath to ensure that a well path points and measured depths
always come pairs, as their usage often relies on both being present.
Fixes#1479.
Magne Sjaastad
Kristian Bendiksen
jonjenssen
Gaute Lindkvist