Comment #3 on issue 1013 by cunningh...@gmail.com: Eye line diagrams do not allow changing line width http://code.google.com/p/moose-technology/issues/detail?id=1013
In class ESDiagramGraphicsContextWrapper, make these changes. This is what allowed line width setting/usage for me.
displayLineFrom: aPoint1 to: aPoint2 self context line: (self transform: aPoint1) to: (self transform: aPoint2) width: self lineWidth color: self color.
lineWidth ^lineWidth ifNil: [ lineWidth := 1 ]
lineWidth: width lineWidth := width