[mapserver-users] tile4ms - Layer object STATUS

Sat Oct 3 18:14:58 PDT 2009

James,  

I can't thank you enough.  Exactly as you said, I was not passing the LAYERS
parameter
from my initialization html file, and then it took me a while to come around
to the fact that
I was not storing the layer parameter in the template html file.

So, for any future readers of tile4ms documentation
(http://mapserver.org/utilities/tile4ms.html#tile4ms), my steps to creating
a working map from that page follow.

Best Regards Guys!  Thanks again,

Ted S.

Initialization file - Changes marked by *****************
########################

<html>
		<!-- initialization_file.html	

			Description -	This file initializes or starts the mapserver (MS)
executable
						file, generally located in /cgi-bin/.  The only purpose of this
					        file is to build a url to give to '/cgi-bin/mapserv?'.  The url
						built by this file is a request to mapserv to build an image with 
						the layers specified in this file.  I believe that the action may
						also be "POST", building a string held in the $_POST array.
						This file is not essential to using MS.  You may manually enter
						the /cgi-bin/mapserv? request into the url.  It is more convenient
						though.

						Mapserver CGI controls (MS Variables)
						1. name="layers" layer - The name of a layer as it appears in the 
                                                                        map
file. Sending mapserv a layer name sets that

layer’s STATUS to ON.

layers - The names of the layers to be turned on.
                                                                       Layer
names must be seperated by spaces: passing 

‘LAYERS=all’ will automatically turn on all layers.

						2. name="map"	[filename] - Path, relative (or absolute) to the 
                                                                       CGI
directory, of the map file to be used.
									value="/path/to/mapfile.map	
								-->
<body bgcolor="#ffffff">
This form will initialize the Mapserver.

<form method="GET" action="/cgi-bin/mapserv">
<input type="hidden" name="map" value="/path/to/mapfile.map">
****************<input type="hidden" name="layers" value="all">  
**********************
<input type="submit" value="Initialize">
</form>
</body>
</html>

########################
End Initialization file

Mapserver Template - Changes marked by *****************
########################
<!-- Mapserver Template -->
<html>
                <head>
        <title>U.S. Atlas - States, Counties, Area Water</title>
                </head>

                <body bgcolor="#ffffff">
                                <div id="main">
                                                <div id="head">
                                                                <h2>U.S.
Atlas - States, Counties</h2>
                                                </div>
                                                <form method="GET">
                                                                <input
name="img" type="image" src="[img]" width="1600" height="800" border=2> <br
/>

<input type="submit" value="Redraw"> <br />
[Zoom In <input type="radio" name="zoomdir" value="1" [zoomdir_1_check]>]
[Pan <input type="radio" name="zoomdir" value="0" [zoomdir_0_check]>]
[Zoom Out <input type="radio" name="zoomdir" value="-1" [zoomdir_-1_check]>]

Zoom Size <input type="text" name="zoomsize" size="4" value="2">
***********<input type="hidden" name="imgxy" value="[center_x] [center_y]">
****************
<input type="hidden" name="imgext" value="[mapext]">
*********** 	<input type="hidden" name="layers" value="[layers]"> 
****************
<input type="hidden" name="map" value="[map]">
                                                </form>
                                </div>
                </body>
</html>

###################
End Mapserver Template 

Variation 2 - Result: Tiled Layer Displays at the requested Scale
denominatorl
#####################

        LAYER
                NAME            "areawater"
                STATUS          ON
                TYPE            POLYGON
                TILEINDEX       "/path/to/areawaterindex"
                TILEITEM        'LOCATION'
******     MAXSCALEDENOM 2000000  **********************
                CLASS
                        NAME "areawater"
                        STYLE
                                COLOR   0 0 255
                        END
                END
##################
End Variation 2 

James Card wrote:
> 
> On Fri, 02 Oct 2009 21:00:29 -0700, Ted Spradley <tspradley at snoogems.com>  
> wrote:
> 
>> STATUS ON means, it is available, but has to be requested
> 
> The key here, that you may be missing, is that your WMS request must  
> specify each layer that you want to be included in the map that is  
> returned. Requesting a map without including the LAYERS parameter will  
> return only the layers that have STATUS DEFAULT set.
> -- 
> James Card
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
> 

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