Adding Run-Time Controls to a Presentation

One thing that distinguishes the Metaview applet is the run-time controls that it provides to users. The following table shows some of the controls that the Metaview applet can present.

	Page-selection slider control
	Slide-show control
	Zoom control

The following picture shows a graphic in which all three controls are present. You can also use parameters to suppress the display of any of the controls.

Page-Selection Slider Control

Metacodes (that are passed with the METACODES parameter to the Metaview applet) can contain multiple graphs when they are the output of a SAS/GRAPH procedure containing a BY statement, or when they are the output ( concatenated together) of multiple SAS/GRAPH procedures. Because ODS only passes a single graph at a time with the METACODES parameter to the Metaview applet, the recommended way to enable a page-selection slider control at run time is by using the META2HTM macro.

The following code fragment uses the META2HTM macro. Notice that two instances of PROC GCHART are invoked in between the first call to META2HTM with CAPTURE=ON and the final call to META2HTM with CAPTURE=OFF. Notice also that in the final call to META2HTM the parameter OPENMODE =APPEND so that the metacodes from the second process are appended to those from the first (with embedded delimiters between graphs). In fact, because both GCHART procedures include a BY QUARTER statement, each procedure produces four graphs, for a total of eight graphs in all.

 filename _webout 'path_and_filename.htm';  %meta2htm(capture=on,            htmlfref=_webout,            openmode=replace,            /* Specify codebase if metafile.zip not in same directory */            /* as html file. */            codebase=http://web_server_name/sasweb/graph            archive=metafile.zip,            hspace=1,            vspace=2);  goptions reset=all device=javameta           border           ftext="Helvetica" ftitle="Helvetica";  title1 '1993 Sales';  proc gchart data=prdsummary(where=(year=1993));     hbar3d country / sumvar=actual subgroup=product sum     shape=hexagon caxis=black cframe=CXb0c1f4;     by quarter;  run;  quit;  title1 '1994 Sales';  proc gchart data=prdsummary(where=(year=1994));     hbar3d country / sumvar=actual subgroup=product sum     shape=hexagon caxis=black cframe=CXb0c1f4;     by quarter;  run;  quit;  %meta2htm(capture=off,            htmlfref=_webout,            openmode=append);  quit; 

Slide-Show Control

Metacodes (that are passed with the METACODES parameter to the Metaview applet) can contain multiple graphs when they are the output of a SAS/GRAPH procedure containing a BY statement, or when they are the output (concatenated together) of multiple SAS/GRAPH procedures. To suppress the slide-show control, do one of the following:

ODS	Specify SLIDECONTROLENABLED=FALSE in the ODS statement, which should look like this: ods html file="filename.htm" parameters=("SLIDECONTROLENABLED=FALSE");
META2HTM	Specify SLIDECTL=N. For example: %meta2htm(capture=on, htmlfref=_webout, openmode=replace, slidectl=n, ...);

Zoom Control

Unless you choose to suppress it, the Metaview applet always displays a zoom control which allows a user to zoom in on and out of the image. To suppress the zoom control, do one of the following:

ODS	Specify ZOOMCONTROLENABLED=FALSE in the ODS statement, which should look like this: ods html file="filename.htm" parameters=("ZOOMCONTROLENABLED=FALSE");
META2HTM	Specify ZOOMCTL=N. For example: %meta2htm(capture=on, htmlfref=_webout, openmode=replace, zoomctl=n, ...);