Problem rendering norbornene

[MikeWilliams-UK]

I was trying to draw norbornene and the double bond turned in to a little dot.

Originally posted by @tomyan112 in #33 (comment)

[MikeWilliams-UK]

Can you please post the CML for this structure to allow us to investigate?

<cml:cml xmlns:conventions="http://www.xml-cml.org/convention/"
               xmlns:cml="http://www.xml-cml.org/schema"
               xmlns:cmlDict="http://www.xml-cml.org/dictionary/cml/"
               xmlns:nameDict="http://www.xml-cml.org/dictionary/cml/name/"
               xmlns:c4w="http://www.chem4word.com/cml"
               conventions="convention:molecular">
  <cml:molecule id="m1">
    <cml:atomArray>
      <cml:atom id="a1" elementType="C" x2="495" y2="390.7313" />
      <cml:atom id="a2" elementType="C" x2="475.6815" y2="395.9077" />
      <cml:atom id="a3" elementType="C" x2="514.3185" y2="395.9077" />
      <cml:atom id="a4" elementType="C" x2="485.6815" y2="378.5872" />
      <cml:atom id="a5" elementType="C" x2="524.3185" y2="378.5872" />
      <cml:atom id="a6" elementType="C" x2="505" y2="373.4108" />
      <cml:atom id="a7" elementType="C" x2="499.8236" y2="354.0923" />
    </cml:atomArray>
    <cml:bondArray>
      <cml:bond id="b1" atomRefs2="a2 a1" order="S" />
      <cml:bond id="b2" atomRefs2="a1 a3" order="S" />
      <cml:bond id="b3" atomRefs2="a2 a4" order="D" c4w:placement="Anticlockwise" />
      <cml:bond id="b4" atomRefs2="a3 a5" order="S" />
      <cml:bond id="b5" atomRefs2="a4 a6" order="S" />
      <cml:bond id="b6" atomRefs2="a6 a5" order="S" />
      <cml:bond id="b7" atomRefs2="a6 a7" order="S" />
      <cml:bond id="b8" atomRefs2="a7 a1" order="S" />
    </cml:bondArray>
  </cml:molecule>
</cml:cml>

[MikeWilliams-UK]

In the attached image I have turned on a couple of diagnostic features which allow us to diagnose issues.

Green spots show the detected centre of rings.
The dotted lines show how the extra bond line which is initially parallel to and the same size as the main bond line is clipped.

In the case of this structure, it is the calculation of the ring centre which is at fault.

[MikeWilliams-UK]

@tomyan112 I have created a new issue as this is nothing to do with the terminal double bond placement

[MikeWilliams-UK]

@tomyan112 this is how norbornene is now rendering in Word

[MikeWilliams-UK]

Fixed by beta-6