[Geomoose-users] Geomoose optimization... map source

[Bob Basques]

All, 

Actually in the 1.x series of GeoMoose you could combine the layers into
a single image, but you don't have the end user controls available for
anything except turning the whole layer set (in geomoose) on/off, the
2.x series allows for single images as well as individual layer controls
inside of the single images. 

bobb 




>>> Len Kne <lkne at houstoneng.com> wrote:


Just to be clear, we are talking GM 2.x (in GM 1.x each source could be
only one layer). 


  


For my two cents, I tried to put all layers into a single mapfile and
thus have one map-source, but generally don’t do this any more because: 


  


1. 
       

The stack order of layers is set by the order of the layers in the
map-source (top layer on top, then goes down from there) 


2. 
       

Opacity is set at the map-source level, thus all layers in a map-source
would have the same opacity 


3. 
       

The fade-in and fade-out tools work at the map-source level, thus all
layers would be changed when changing one in the catalog 


4. 
       

Tend to get a redraw of all layers in the map-source when turning one
layer on/off 


  


I still combine “like” layers into one map-source and one mapfile, but
watch how the layers are going to be displayed. 


  


Len 


  


From: 

Mark Volz [mailto:MarkVolz at co.lyon.mn.us]
Sent: Thursday, February 18, 2010 8:46 AM
To: geomoose-users at lists.sourceforge.net
Subject: [Geomoose-users] Geomoose optimization... map source 

  

Hello, 



I would like to try to move all my layers into a single .map file so
that only 

one map with many layers is drawn at a time.  Is the standard practice
to: 



1)      

Create a single <map-source> with 

multiple references in the catalog to that single map source. 



2)      

Create 

separate <map-source> tags that each have their own reference 

to the same 

.map file. 



For example which example between the two is a standard practice so only
one map is drawn? 



<map-source name="AllLayers" type="mapserver"> 


        
<file>AllLayers.map</file> 



<layer name="layer1"/> 


        
<layer name="layer2"/> 


        
<layer name="layer3"/> 



</map-source> 



… 



<catalog> 



<layer title="layer1" src="AllLayers/layer1"/> 



<layer title="layer2" src="AllLayers/layer2"/> 



<layer title="layer3" src="AllLayers/layer3"/> 



</catalog> 



OR 



<map-source name="layer1" type="mapserver"> 


        
<file>AllLayers.map</file> 



<layer name="layer1"/> 



</map-source> 



<map-source name="layer2" type="mapserver"> 


        
<file>AllLayers.map</file> 



<layer name="layer2"/> 



</map-source> 



<map-source name="layer3" type="mapserver"> 


        
<file>AllLayers.map</file> 



<layer name="layer3"/> 



</map-source> 



<catalog> 



<layer title="layer1" src="layer1/layer1"/> 



<layer title="layer2" src="layer2/layer2"/> 



<layer title="layer3" src="layer3/layer3"/> 



</catalog> 



Next, 



Is it okay to use this method for operational layers such as parcels? 



Thanks 



Mark Volz 



GIS Specialist 



Lyon County, MN 


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