| SAS/GRAPH Software: Reference |
With the DATA Step Graphics Interface you
can
- enhance existing graphs
- create custom graphs.
|
| Enhancing Existing Graphs |
You can use DSGI to enhance
graphs that were previously generated by using SAS/GRAPH
procedures. You can add text and other graphics elements. You can also alter
the appearance of the existing graph by scaling or reducing it. To enhance
a graph produced by a SAS/GRAPH graphics
procedure, you must insert the existing graph into graphics output being generated
with DSGI.
To insert a graph, you must provide DSGI
with the following information:
- the catalog in which the existing graph is located
- the name of the existing
graph
- the coordinates of the place in the graphics output
where you want to insert the existing graph
- a square coordinate system ((0,0) to (100,100))
- the statements to draw
enhancements to the existing
graph.
The coordinates that DSGI uses to position existing
graphs, enhancements to that graph, or graphics elements are based on units
of percent of the window system currently defined. See Using Viewports and Windows.
You can
produce custom graphs with
DSGI without using a data set to produce the graphics output. DSGI enables
you to generate
- arcs
- bars
- ellipses
- elliptical
arcs
- lines
- markers
- pie
slices
- polygons (filled areas)
- text.
To create custom
graphs, you must provide the system
with the following information:
- DSGI statements to draw graphics elements
- the coordinates of the graphics elements
in the
output.
In addition, you can specify the color, pattern, size,
style, and position of these graphics elements.
Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
