Why is a gap observed when drawing a circle in TCL/TK in Red Hat Enterprise Linux 6 and 7?

Solution In Progress - Updated -

Issue

  • A gap is observed when drawing a circle( Image 1 ) , even spikes on the left and right edges of the circle( Image 2) when using TCL/TK.

  • Image 1 :
    alt text

  • Image 2 :
    alt text

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • tk-8.5.13-4.el7 and tcl-8.5.13-4.el7
  • tk-8.5.7-5.el6 and tcl-8.5.7-6.el6

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