Scripting Guide - SAS

Chapter 12 Scripting Graphs 419
Drawing Lines, Arrows, Points, and Shapes
Figure 12.20 Line Styles
To control the thickness of lines, set a Pen Size and specify the line width in pixels. The default is 1 for
single-pixel lines. For printing, think of Pen Size as a multiplier for the default line width, which varies
according to your printing device.
pen size(2); //double-width lines
Drawing With Pixels
You can also draw using pixel coordinates. First you set the Pixel Origin in terms of graph coordinates,
and then use Pixel Move To or Pixel Line To commands in pixel coordinates relative to that origin.
The main use for Pixel commands is for drawing custom markers that do not vary with the size or scale of
the graph. You can store a marker in a script and then call it within any graph. This example uses Function
to store pixel commands in a script with its own parameters, x and y.
ballotBox = Function( {x, y},
Pixel Origin( x, y );
Pixel Move To( -5, -5 );
Pixel Line To( -5, 5 );
Pixel Line To( 5, -5 );
Pixel Line To( -5, -5 );
Pixel Line To( 5, 5 );
Pixel Line To( -5, 5 );
Pixel Move To( 5, 5 );
Pixel Line To( 5, -5 );
);
New Window( "Custom markers",
Graph Box(
framesize( 200, 200 ),
ballotBox( 10, 10 );
ballotBox( 15, 90 );
ballotBox( 20, 50 );
ballotBox( 80, 50 );
ballotBox( 60, 70 );
)