SAS 9.4 Language Reference, 6th Edition

Creating SVG (Scalable Vector Graphics) Files

Using Universal Printing

Overview of Scalable Vector Graphics in SAS

Scalable Vector Graphics in SAS

Scalable Vector Graphics (SVG) is an XML language for describing two-dimensional

vector graphics. SAS creates SVG documents based on the W3C recommendation for

SVG documents. SAS SVG documents are created using the UNICODE standard

encoding UTF-8.

SAS can create SVG documents by using Universal Printers and SAS/GRAPH device

drivers. Because SAS/GRAPH SVG device drivers use the SVG Universal Printers, this

section contains some information about creating SVG documents using SAS/GRAPH.

Most often in SAS, the SVG Universal Printers and device drivers are used to create

graphs. Graphs can be created by using ODS Graphics or SAS/GRAPH. You can also

use the SVG Universal Printers to show tables or reports that you create as SVG

documents.

Several ODS destinations (EPUB, HTML, HTML5, LISTING, and PRINTER

destinations) can be used to create SVG documents. SVG is the default Universal Printer

and device driver for the ODS HTML5 destination.

SVG documents can be stand-alone files or integrated within an HTML5 or EPUB file.

A stand-alone SVG document can be referenced as a link target, referenced as an

embedded file in an HTML document, or referenced as a CSS2 or XSL property. For

information about embedding SVG documents in web pages, see the topic on using SVG

documents in web pages in the SVG 1.1 specification on the W3 SVG website http://

www.w3.org/TR/SVG.

Multi-page SVG documents can be animated in Base SAS and SAS/GRAPH. When you

create animated SVG documents in Base SAS using Universal Printing without

specifying any ODS Graphics procedures, the animated SVG documents appear as a

slide show or an animated PowerPoint presentation. For more information, see “Creating

Animated GIF Images and SVG Documents” on page 345.

If you have SAS/GRAPH installed, your SVG documents can contain links and pop-up

text boxes.

The information provided here is limited to creating SVG documents using Universal

Printers in Base SAS and ODS Graphics. For more information about creating SVG files

in SAS/GRAPH, see “Enhancing Web Presentations with Chart Descriptions, Data Tips,

and Drill-Down Functionality ” in SAS/GRAPH: Reference.

For detailed information about the SVG standard, see the W3 documentation at http://

www.w3.org/TR/SVG.

SVG Terminology

SVG canvas

the space upon which the SVG document is rendered.

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viewBox

specifies the coordinate system and the area of the SVG document that is visible in

the viewport.

viewport

a finite rectangular space within the SVG canvas where an SVG document is

rendered. In SAS, the viewport is determined by the value of the PAPERSIZE=

system option for a scalable viewport and by the SVGWIDTH= and SVGHEIGHT=

system options for a static viewport.

viewport coordinate system or viewport space

the starting X and Y coordinates and the width and height values of the viewport.

user coordinate system or user space

the starting X and Y coordinates and the width and height values of the area of the

document to display in the viewport.

user units

is equal to one unit of measurement that is defined in your environment's coordinate

system. In many cases, the coordinate system uses pixels. Check with your system

administrator to determine the unit of measure that is used in your environment.

Why Create SVG Documents?

SVG documents are displayed clearly at any size in any viewer or browser that supports

SVG. SVG documents are ideal for producing documents to display on a computer

monitor, PDA, or cell phone; or documents to be printed. Because it is a vector graphic,

a single SVG document can be transformed to any screen resolution without

compromising the clarity of the document. In comparison, a multiple raster graphic

image might require using different screen resolutions in order to display the image at

various screen resolutions and sizes.

An SVG document might also be smaller in file size than the same image created by a

raster graphic Universal Printer, such as GIF or PNG.

Web Server Content Type for SVG Documents

If the mime content type setting for your web server does not have the correct setting for

SVG documents, your web browser might render SVG documents as text files, or SVG

documents might be unreadable.

To ensure that SVG documents are rendered correctly, configure your web server to use

this mime content type:

image/svg+xml

The SVG Universal Printers and the Output That They Create

The following table lists the SAS SVG Universal Printers.

Table 15.19 SVG Universal Printers

Printer Name Description

SVG

*

produces SVG 1.1 documents.

Creating SVG (Scalable Vector Graphics) Files Using Universal Printing 317