Move the Mach/VCAS conversion methods to FGAuxiliary
#898
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Codecov Report
@@ Coverage Diff @@
## master #898 +/- ##
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+ Coverage 23.05% 23.10% +0.04%
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Files 167 167
Lines 19619 19627 +8
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+ Hits 4524 4534 +10
+ Misses 15095 15093 -2
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This PR is a counter proposal to the PRs #881 and #885 that I previously submitted. The motivations remain the same than the ones exposed in #881 while avoiding the problems that the PR #885 is awkwardly trying to fix. In the current PR, the Mach/VCAS conversion methods are moved to
FGAuxiliary. As such this PR undoes #881 and supersedes #885.Basically the idea is to move the Mach/VCAS conversion routines to
FGAuxiliaryrather than toFGAtmosphereas the PR #881 did. For that purpose,FGAuxiliaryonly needs an access toFGAtmosphereconstants such as the specific heat ratio and the standard day pressure, temperature and speed of sound. As these areconstexprmembers,FGAuxiliarycan safely access them using C++ qualified identifiers such asFGAtmosphere::StdDaySLpressurewhich is much simpler than #881 and #885 combined. Even though the standard day speed of sound needs a special treatment as the functionsqrtcannot be used forconstexprmembers. So we need to fall back to a good oldconstvariable forStdDaySLsoundspeed.IMHO, with this PR, all the pieces are finally falling into place and I'd suggest to merge this PR and cancel #885.