HPCC-8438 SetScale call causes graph to reposition

Fixes HPCC-8438

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #131 from GordonSmith/HPCC-8438

HPCC-8438 SetScale call causes graph to reposition

Reviewed-By: Kevin Wang <kevin.wang@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>