[Cdk-devel] [ cdk-Bugs-815265 ] Intelligent background fill for atoms

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Bugs item #815265, was opened at 2003-09-30 18:59
Message generated for change (Settings changed) made by egonw
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Category: org.openscience.cdk.renderer
Group: None
>Status: Closed
>Resolution: Fixed
Priority: 5
Submitted By: Anatoli Krassavine (akrassavine)
Assigned to: Egon Willighagen (egonw)
Summary: Intelligent background fill for atoms

Initial Comment:
Currently the background of atom symbols (and 

associated paraphernalia like charges, isotopes, 

hydrogens) is filled with background colour to make it 

stand out. It is a satisfactory solution. The problem is 

that the area to be filled is calculated as the minimum 

rectangle encompassing all elements of atom depiction. 

If the atom contains lots of extra small elements 

(superscripts and subscripts), then the filled space is 

getting too big (it pads too much space around atom). 

This in turn might conceal bonds.



Example:



    C-15NH2-C stacked vertically (i.e. N isotope 15)



    single vertical bonds are barely visible



    Solution:

    Use individual rectangle for individual visual 

elements to fill smaller areas in appropriate places.





  There is also a more principal issue with this solution 

in certain cases and I am submitting RFE describing it.



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