draw2dpdf/gc.go
func (gc *GraphicContext) SetLineWidth(LineWidth float64) {
	gc.StackGraphicContext.SetLineWidth(LineWidth)
	gc.pdf.SetLineWidth(LineWidth)
}
func (gc *GraphicContext) SetLineWidth(LineWidth float64) {
	gc.StackGraphicContext.SetLineWidth(LineWidth)
	gc.pdf.SetLineWidth(LineWidth)
}
// SetLineWidth sets the line width