01feb16 2 #192
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01feb16 2 #192
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…k the liberal approach of marking anything unspecified which we couldn't prove might have stereo. Now we do some simple checks for linear chains.
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More rendering patches. The first address the problem of indicating a double bond has no stereochemistry. We would previously be liberal and unless certain basic invariants were met a wavy bond was added. The meaning is not changed only the aesthetics of some compounds (e.g. CN=C(N)N). Now we go further and check neighbours. This is short of a full stereo perception which would be expensive but has good results.
I've also modified the default rendering parameters slightly.