Polyline.StrokeLineJoin and tight corners

Sharp corners in Polylines (particularly thick ones) can create unintended artefacts - particularly apparent when converting a (somewhat shaky) GPS track into a line on the Silverlight VE Map Control.

In this screenshot the circled 'line extension' (leading off into the water) is not actually part of the path, but an artefact of a very tight corner:


A few simple additions - StrokeLineJoin being the most important - and the Path looks "correct":

<m:MapPolyline
Stroke="Blue" StrokeThickness="10" x:Name="Course"
StrokeLineJoin="Round"
StrokeEndLineCap="Round"
StrokeStartLineCap="Round"
Locations="-33.84780366140732,151.21159315109253 -33.84504135759562,151.2111210823059 -33.84418591636912,151.2106704711914 -33.84374037067171,151.21082067489624...
/>



Just something to be aware of...