diff options
| -rw-r--r-- | filter/source/graphicfilter/icgm/class4.cxx | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/filter/source/graphicfilter/icgm/class4.cxx b/filter/source/graphicfilter/icgm/class4.cxx index 8bcb4b3f703a..659eba8d43ad 100644 --- a/filter/source/graphicfilter/icgm/class4.cxx +++ b/filter/source/graphicfilter/icgm/class4.cxx @@ -647,8 +647,10 @@ void CGM::ImplDoClass4() bool bDirection = ImplGetEllipse( aCenter, aRadius, fOrientation ); ImplGetVector( &vector[ 0 ] ); - fStartAngle = acos( vector[ 0 ] / sqrt( vector[ 0 ] * vector[ 0 ] + vector[ 1 ] * vector[ 1 ] ) ) * 57.29577951308; - fEndAngle = acos( vector[ 2 ] / sqrt( vector[ 2 ] * vector[ 2 ] + vector[ 3 ] * vector[ 3 ] ) ) * 57.29577951308; + double fStartSqrt = sqrt(vector[0] * vector[0] + vector[1] * vector[1]); + fStartAngle = fStartSqrt ? (acos(vector[0] / fStartSqrt) * 57.29577951308) : 0.0; + double fEndSqrt = sqrt(vector[2] * vector[2] + vector[3] * vector[3]); + fEndAngle = fEndSqrt ? (acos(vector[2] / fEndSqrt) * 57.29577951308) : 0.0; if ( vector[ 1 ] > 0 ) fStartAngle = 360 - fStartAngle; |