double QgsCurvePolygon::vertexAngle( QgsVertexId vertex ) const
{
if ( !mExteriorRing || vertex.ring < 0 || vertex.ring >= 1 + mInteriorRings.size() )
{
//makes no sense - conversion of false to double!
return false;
}
QgsCurve *ring = vertex.ring == 0 ? mExteriorRing.get() : mInteriorRings[vertex.ring - 1];
return ring->vertexAngle( vertex );
}
double QgsCompoundCurve::vertexAngle( QgsVertexId vertex ) const
{
QVector< QPair<int, QgsVertexId> > curveIds = curveVertexId( vertex );
if ( curveIds.size() == 1 )
{
QgsCurve *curve = mCurves[curveIds.at( 0 ).first];
return curve->vertexAngle( curveIds.at( 0 ).second );
}
else if ( curveIds.size() > 1 )
{
QgsCurve *curve1 = mCurves[curveIds.at( 0 ).first];
QgsCurve *curve2 = mCurves[curveIds.at( 1 ).first];
double angle1 = curve1->vertexAngle( curveIds.at( 0 ).second );
double angle2 = curve2->vertexAngle( curveIds.at( 1 ).second );
return QgsGeometryUtils::averageAngle( angle1, angle2 );
}
else
{
return 0.0;
}
}
