The NETDRAW Procedure

ODS Style Templates

PROC NETDRAW Style Template
Default Values

ODS style templates, or styles, control the overall look of your output. An ODS style template consists of a set of style elements. A style element is a collection of style attributes that apply to a particular feature or aspect of the output. You can specify a value for each attribute in a style. See Chapter 21: Statistical Graphics Using ODS in SAS/STAT 12.1 User's Guide, for a thorough discussion of ODS Graphics.

To create your own style or to modify a style for use with ODS Graphics, you need to understand the relationships between style elements and graph features. This information is provided in the ODS Graphics documentation at http://support.sas.com/documentation/onlinedoc/base/ . You can create and modify style templates with the TEMPLATE procedure. For more information, see the section “TEMPLATE Procedure: Creating a Style Template” in the SAS Output Delivery System: User's Guide. Kuhfeld (2010) also offers detailed information and examples.

PROC NETDRAW Style Template

A predefined ODS style template named NETDRAW is available for the NETDRAW procedure. You can use the template to maintain a consistent appearance in all graphical output produced by the procedure.

To change the current style, specify the STYLE= option in an ODS destination statement. The specified style is applied to all output for that destination until you change or close the destination or start a new SAS session. For example, the following statement specifies that ODS should apply the NETDRAW style template to all HTML output:

ods html style=netdraw;

To disable the use of graphical styles, specify the SAS system option NOGSTYLE.

The parent style template for the NETDRAW style is the DEFAULT style. Table 9.7 lists the style elements (in bold) and corresponding attributes specified in the NETDRAW style. The table also indicates which, if any, PROC NETDRAW options or graphics options (in a GOPTIONS statement) can be used to override the value of a style attribute.

Table 9.7: Style Elements and Attributes in the NETDRAW Style

Element/Attributes	Description	NETDRAW Option	GOPTION
GraphColors	Colors of various graph features
gdata1	Noncritical nodes or nodes in the first zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata2	Critical nodes or nodes in the second zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata3	Nodes in the third zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata4	Nodes in the fourth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata5	Nodes in the fifth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata6	Nodes in the sixth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata7	Nodes in the seventh zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata8	Nodes in the eighth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata9	Nodes in the ninth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata10	Nodes in the tenth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata11	Nodes in the eleventh zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gdata12	Nodes in the twelfth zone	PATTERN=, ZONEPAT	CPATTERN=, COLORS=
gaxis	Borderlines		COLORS=
greferencelines	Horizontal and vertical reference lines		COLORS=
gtext	Text		CTEXT=
gtextt	Title		CTITLE=
gcdata	Arcs		COLORS=
GraphFonts	Fonts for various graph features
GraphDataFont	Default		FTEXT=
GraphLabelFont	Annotation text		FTEXT=
GraphTitleFont	Title text		FTITLE=
GraphAxisLines	Attributes related to graph axes
Color	GraphColors('gaxis')	CAXIS=	COLORS=
GraphConnectLine	Attributes related to arcs
Color	GraphColors('gcdata')	CARCS=, CCRITARCS=	COLORS=
GraphReference	Attributes related to horizontal and vertical reference lines
Color	GraphColors('greferencelines')	CREF=, CREFBRK=	COLORS=
GraphDataText	Attributes related to general text
Color	GraphColors('gtext')	CTEXT=	CTEXT=
Font	GraphFonts('GraphDataFont')	FONT=	FTEXT=
GraphTitleText	Attributes related to title text
Color	GraphColors('gtextt')		CTITLE=
Font	GraphFonts('GraphTitleFont')		FTITLE=
GraphLabelText	Attributes related to annotation text
Color	GraphColors('glabel')		CTEXT=
Font	GraphFonts('GraphLabelFont')		FTEXT=
GraphDataDefault	Default values for the attributes specified in Table 9.8
Color	GraphColors('gdata')		COLORS=
GraphBackground	Attributes related to graph background
Image	Background image		CBACK=

Attributes that you do not override retain the values specified in the style template.

Figure 9.9 demonstrates features of the NETDRAW graphical style. The diagram in the figure is the first output from Example 9.11.

Figure 9.9: NETDRAW Style Template: Example

Default Values

If the SAS system option GSTYLE is in effect (this is the default), then the default values of certain PROC NETDRAW options can depend on the current ODS style template. Table 9.8 lists these PROC NETDRAW options and lists the order in which PROC NETDRAW searches for each option’s default value. The order assumes that the GSTYLE system option is in effect; if that is not the case, then the steps that refer to ODS style templates are ignored. Names with arguments indicate style elements and attributes of the current ODS style template. For example, “GraphAxisLines('Color')” refers to the Color attribute of the GraphAxisLines element.

Table 9.8: PROC NETDRAW Options: Search Orders for Default Values

Option		Search Order for Default Value
CARCS=	1.	GraphConnectLine(Color)
	2.	The fourth color in the COLORS= list in the GOPTIONS statement
CAXIS=	1.	GraphAxisLines(Color)
	2.	GraphDataDefault(Color)
	3.	The first color in the COLORS= list in the GOPTIONS statement
CREF=	1.	GraphReference(Color)
	2.	GraphDataDefault(Color)
	3.	The first color in the COLORS= list in the GOPTIONS statement
CREFBRK=	1.	GraphReference(Color)
	2.	GraphDataDefault(Color)
	3.	The first color in the COLORS= list in the GOPTIONS statement
CTEXT=	1.	The value specified for the CTEXT= option in the GOPTIONS statement
	2.	GraphDataText(Color)
	3.	GraphDataDefault(Color)
	4.	The first color in the COLORS= list in the GOPTIONS statement
FONT=	1.	The value specified for the FTEXT= option in the GOPTIONS statement
	2.	GraphDataText(Font)
	3.	The default hardware font for the graphics output device