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<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=791581311-07032007>Hello,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=791581311-07032007></SPAN></FONT> </DIV>
<DIV><FONT face=Arial><SPAN class=791581311-07032007><FONT color=#0000ff
size=2>I'm trying to force a refresh of a layer, but when I do </FONT>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT face="Trebuchet MS"
color=#0000ff size=2>myLayer.mergeNewParams({'uniqueName':
Math.random()});</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><SPAN
class=791581311-07032007><FONT face="Trebuchet MS" color=#0000ff size=2>It
doesn't anything, what is happend?</FONT></SPAN></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><SPAN
class=791581311-07032007><FONT face="Trebuchet MS" color=#0000ff
size=2></FONT></SPAN></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><SPAN
class=791581311-07032007><FONT face="Trebuchet MS" color=#0000ff
size=2>Thanks.</FONT></SPAN></SPAN></DIV></SPAN></FONT></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Mensaje original-----<BR><B>De:</B> Tim Schaub
[mailto:noreply@geocartic.com]<BR><B>Enviado el:</B> miércoles, 31 de enero de
2007 22:48<BR><B>Para:</B> users@openlayers.org<BR><B>Asunto:</B> Re:
[OpenLayers-Users] Forcing a refresh of a layer<BR><BR></FONT></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2>The Layer.mergeNewParams() function can be called
to trigger the redraw of a specific layer. If you want the layer to be
redrawn with a new parameter value, then do something
like:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2>myLayer.mergeNewParams({'param1':
value1});</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2>If you aren't changing a specific parameter value
in the WMS layer, but you want the layer to be refreshed (and not use any
browser cached images), then you can tack on an unused parameter name and give
it a random value:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2>myLayer.mergeNewParams({'uniqueName':
Math.random()});</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007><FONT
face="Trebuchet MS" size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=056234321-31012007></SPAN><FONT
face="Trebuchet MS"><FONT size=2>H<SPAN class=056234321-31012007>ope that
helps,</SPAN></FONT></FONT></DIV>
<DIV dir=ltr align=left><FONT size=+0><FONT size=2><SPAN
class=056234321-31012007></SPAN></FONT></FONT><SPAN
class=056234321-31012007></SPAN><FONT face="Trebuchet MS"><FONT size=2>T<SPAN
class=056234321-31012007>im</SPAN></FONT></FONT></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> users-bounces@openlayers.org
[mailto:users-bounces@openlayers.org] <B>On Behalf Of </B>Matthew
White<BR><B>Sent:</B> Wednesday, January 31, 2007 2:40 PM<BR><B>To:</B>
users@openlayers.org<BR><B>Subject:</B> [OpenLayers-Users] Forcing a refresh
of a layer<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">
<DIV>Hello,<BR><BR>Please forgive me if this is a basic question, as I am
relatively new to OpenLayers. What I would like to do is force a
refresh\reload of a layer when the user performs an action. I am using a WMS
layer, and the data being rendered may be changed or rendered differently
when the user performs an action. Is there a way to force the redraw of a
layer, or failing that the whole map (i.e., layer.redraw()
etc)?<BR><BR>Thanks in advance,<BR>Matt<BR></DIV></DIV><BR>
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