<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Message</TITLE>
<META http-equiv=Content-Type content="text/html; charset=us-ascii">
<META content="MSHTML 6.00.2600.0" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial size=2><SPAN class=508053203-10112002>I would like to
provide my users with the ability to spatially select/deselect rectangular areas
of a displayed map and to accumulate the results of multiple nqueries into a
layer. This layer would then be visually indicated on the current map as,
say, an opaque shape. I'd really like to do this as an additive alpha
overlay, but one thing at a time. ;-) Another display possibility is
to render the layer as lines and use the existing highlight feature to indicate
selected areas.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=508053203-10112002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=508053203-10112002>I am assuming here
that nqueries (or a variant that I code myself) are the correct operations to
perform in this case. I am using the Rosa applet as a front end, so I have
both point and rectangular information flowing from the
client.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=508053203-10112002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=508053203-10112002>An ideas about the
quickest way to get this implemented are appreciated.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=508053203-10112002></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=508053203-10112002>John
Novak</SPAN></FONT></DIV></BODY></HTML>