Ha, well, I prefer that :) I would need a lot of layer definitions to obtain something ok...<br><br>But I just tried the "ground units" stuff, I tried with a 50 kilometers wide square and it drew squares the size of ASIA !! oO<br>
I had to define a 1 feet wide square to obtain something more or less ok...<br>Does anybody know why ?<br><br>Aside from that It seems to work, thank you !<br><br>I will try the scalesymbol stuff tomorrow.<br><br>Regards<br>
<br><br><div class="gmail_quote">2008/5/27 Fawcett, David <<a href="mailto:David.Fawcett@state.mn.us">David.Fawcett@state.mn.us</a>>:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Before you create lots of different layers to simulate symbol scaling,<br>
you may want to try something else. It has been a long time since I<br>
have played with scaled symbols, but give it a try.<br>
<br>
You should be able to scale the symbols by setting a SYMBOLSCALE in the<br>
LAYER object. This is the scale at which you want the symbol to appear<br>
at the SIZE stated in the map file.<br>
<br>
You may want to modify STYLE MAXSIZE if you think that you will want<br>
your symbols to be larger than 50 pixels.<br>
<br>
Another completely different approach that just came to my mind would be<br>
to use ground units (e.g. meters) to set the size of your symbol. To do<br>
this, set LAYER SIZEUNITS to meters. Calculate the size of a symbol in<br>
meters on the ground that will touch adjacent symbols, or give you the<br>
desired amount of space between the symbols. That way, the symbols<br>
should scale consistently.<br>
<br>
David.<br>
<div class="Ih2E3d"><br>
-----Original Message-----<br>
From: <a href="mailto:mapserver-users-bounces@lists.osgeo.org">mapserver-users-bounces@lists.osgeo.org</a><br>
</div><div><div></div><div class="Wj3C7c">[mailto:<a href="mailto:mapserver-users-bounces@lists.osgeo.org">mapserver-users-bounces@lists.osgeo.org</a>] On Behalf Of Ritesh<br>
Ambastha<br>
Sent: Tuesday, May 27, 2008 10:16 AM<br>
To: <a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a><br>
Subject: Re: [MAPSERVER-USERS] Displaying population density with<br>
Mapserver<br>
<br>
<br>
<br>
Dear Faldor,<br>
<br>
Robert is absolutely right. You will have to make different LAYERS for<br>
the same POINT layer. But, define MAX/MINSCALE for each Layer. Change<br>
STYLE -> SIZE values in each of the layer. You are done !!<br>
<br>
Cheers !<br>
Ambastha<br>
<br>
<br>
Faldor wrote:<br>
><br>
> Yes, but I need them to adapt for different extents.<br>
><br>
> For example, When I zoom out enough to see the world, I need them 1<br>
> pixel wide (it's ugly otherwise), but when I zoom in I will need then<br>
> 2 or 5 or even 30 pixels wide to cover all space.<br>
><br>
> 2008/5/27 Ritesh Ambastha <<a href="mailto:group.ritesh@gmail.com">group.ritesh@gmail.com</a>>:<br>
><br>
>><br>
>> Dear Faldor,<br>
>><br>
>> <snip>What I need is to have the points grow to cover all space<br>
>> available when I zoom in.</snip><br>
>><br>
>> Do you mean that the size of points should grow? It can be done<br>
>> easily by setting proper SIZE in the STYLE tag.<br>
>><br>
>><br>
>> Regards,<br>
>> Ambastha<br>
>><br>
>><br>
>><br>
>> Faldor wrote:<br>
>> ><br>
>> > Hi,<br>
>> ><br>
>> > Sorry for my first empty message.<br>
>> ><br>
>> > My problem is, I need to display population density with Mapserver.<br>
<br>
>> > The data comes from GPWv3 and has a resolution of 15'. I converted<br>
>> > it to a POINT Shapefile using ogr2ogr.<br>
>> ><br>
>> > At first when I display it on a world map it shows nicely. But when<br>
<br>
>> > I<br>
>> zoom<br>
>> > in it begins to show separated points for each value in the<br>
>> > shapefile. What I need is to have the points grow to cover all<br>
>> > space available<br>
>> when<br>
>> I<br>
>> > zoom in.<br>
>> ><br>
>> > Is there any mean to do it with Mapserver ? I did not find it in<br>
>> > the mapfile reference.<br>
>> ><br>
>> > I don't know if I explained it well (I'm not english speaking). If<br>
>> > you<br>
>> do<br>
>> > not understand something, please ask.<br>
>> ><br>
>> > Cordialy,<br>
>> ><br>
>> > Faldor<br>
>> ><br>
>> ><br>
>> ><br>
>><br>
>> --<br>
>> View this message in context:<br>
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>> 17492210p17492387.html<br>
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>><br>
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