Merged revision(s) 12857, 12868, 12882, 12887 from branches/Release/17_2_Development: Implement determination and visualization of tangent lines in the macro stability inwards input view chart.
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Implement review comments from review 2318
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Implement review comments from review 2320
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Moved some statements for better cohesion.
git-svn-id:
https://repos.deltares.nl/repos/WettelijkToetsInstrumentarium/branches/Release/17_2@12904 5a3db67b-de53-47b5-99c8-a1c30a6650e2
Former-commit-id: 1c0ac2862e596e9e6dab29454f9f14e17964480c
Former-commit-id: ad8a69935de8d9ca886646e6976275b9997119ee