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Specifying Line Styles For Polylines

It is possible to draw polylines solid, dashed, dotted or dashed-dotted ('GLSOLI', 'GLDASH', 'GLDOT', 'GLDASD'). For example: 

CALL GSLN(GLDASH) - sets the line style to dashed
The different line styles available are shown in gif.

 

 


Figure: GKS line styles

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It is also possible to specify a scale factor which modifies the nominal width of lines on the workstation. For example: 

CALL GSLWSC(2.0)
should double the nominal line width. Note, however, that this (Real) parameter is implementation-dependent, and may be ignored by terminal drivers as it is both difficult and expensive to emulate in software if the device does not support the feature in hardware.

Janne Saarela
Mon Apr 3 17:00:12 METDST 1995