Answer
Yes. The coordinate system can be changed by utilizing a GET_EXTRACT ArcXML request.
In the following example request, the data currently in decimal degrees (id="4326") is changed to World Robinson (id="54030"):
Code:
<?xml version="1.0" encoding="UTF-8" ?>
<ARCXML version="1.1">
<REQUEST>
<GET_EXTRACT>
<PROPERTIES>
<ENVELOPE minx="-130" miny="30" maxx="-90" maxy="60" />
<FILTERCOORDSYS id="4326" />
<FEATURECOORDSYS id="54030" />
</PROPERTIES>
</GET_EXTRACT>
</REQUEST>
</ARCXML>
The GET_EXTRACT request requires a custom HTML application using the Servlet, ActiveX, ColdFusion, or Java Connectors. You cannot create a custom application using the Java Custom or Java Standard Viewers that uses GET_EXTRACT.
For more information on using GET_EXTRACT, see the ArcXML Programmer's Reference Guide on your ArcIMS CD-ROM.