Showing multiple layers using one checkbox
Bradley Mclain
bradleym06 at HOTMAIL.COM
Mon Feb 5 15:40:29 PST 2007
Thanks I created a static image showing the layers I want, only problem is
that once the mapserver invokes the map, the image fails to load because it
has the mapserver-cgi directory infront of the image path, how do I avoid
this?
Image Declaration:
<td>
<p>Legend:<br>
<img src="legend.gif" width="159" height="77" border="0">
</td>
Broken Path:
http://192.168.1.130/cgi-bin/legend.gif
Also on the same note as this currently my map does not show up on first
load you must click on it to get it load. It would be much better to have
the map load on page load. I will include the html file as well.
Brad
>From: "Fischer, Brian" <bfischer at HOUSTONENGINEERINGINC.COM>
>Reply-To: "Fischer, Brian" <bfischer at HOUSTONENGINEERINGINC.COM>
>To: MAPSERVER-USERS at LISTS.UMN.EDU
>Subject: Re: [UMN_MAPSERVER-USERS] Showing multiple layers using one
>checkbox
>Date: Mon, 5 Feb 2007 08:22:46 -0600
>
>If you want to always show the legend no matter what layers are turned
>on or off. I would just pregenerate the legend once and have it linked
>to a static image. No reason for mapserver to generate this everytime
>the map changes on the fly when nothing in the legend is changing. The
>easist way to do this is use the legend utility that comes with the
>mapserver download. Just temporary set all your layers to on and run
>the utility. It will generate an image to use. The easiest way to
>handle the group layers is to only put the name in one of those layers
>instead of all.
>
>Hope this helps,
>Brian
>
>
>Brian Fischer
>Houston Engineering, Inc.
>Maple Grove, MN
>(763) 493-4522
>
>-----Original Message-----
>From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
>Behalf Of Bradley Mclain
>Sent: Sunday, February 04, 2007 10:29 PM
>To: MAPSERVER-USERS at LISTS.UMN.EDU
>Subject: Re: [UMN_MAPSERVER-USERS] Showing multiple layers using one
>checkbox
>
>Excellent just what I was looking for thanks.
>
>Any chance you know how to fix up my legend now, there are two things
>wrong with it. Firstly I want it to show the name of the groups not the
>layers and secondly, I want it show them even when they are unticked.
>currently they dissapear off the key when unticked.
>
>Brad
>
>
>
>
> >From: "Fischer, Brian" <bfischer at HOUSTONENGINEERINGINC.COM>
> >Reply-To: "Fischer, Brian" <bfischer at HOUSTONENGINEERINGINC.COM>
> >To: MAPSERVER-USERS at LISTS.UMN.EDU
> >Subject: Re: [UMN_MAPSERVER-USERS] Showing multiple layers using one
> >checkbox
> >Date: Sun, 4 Feb 2007 21:57:35 -0600
> >
> >Brad,
> >
> >The easiest way to do this would be to use the GROUP parameter in the
> >mapfile. This would turn all layers on with the same name in the GROUP
>
> >parameter.
> >
> >Another option is to use a javascript function to alter the layers list
>
> >that is passed to the CGI on the OnClick event of the checkbox.
> >
> >-Brian
> >
> >________________________________
> >
> >From: UMN MapServer Users List on behalf of Bradley Mclain
> >Sent: Sun 2/4/2007 4:12 PM
> >To: MAPSERVER-USERS at LISTS.UMN.EDU
> >Subject: [UMN_MAPSERVER-USERS] Showing multiple layers using one
> >checkbox
> >
> >
> >
> >Ok I currently have a mapfile which has multiple layers which make up
> >my image. I have set it up so that you can use a checkbox to turn these
>
> >on and off. What I want to do however is combine two of them into the
> >one checkbox.
> >
> >E.g. Currently I have two different shapefiles making up a boundary for
>
> >a property. They are defined in seperate layers in the mapfile. I want
> >them to both display when I tick a "Property Boundary" checkbox.
> >
> >Brad
> >
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