Matej wrote:
> Hi,
> 
> we have some PostGIS tables which include numbers of points. In the attribute 
> table there is a column type and we would like to have some points of type A 
> to be colored in one color and others in different color. We can successfully 
> select the points via the Attribute table Search for option, but then except 
> having all the appropriate points selected we are unable to change color of 
> the selected ones. I am wondering if it is possible to change colors of 
> particular points according to some parameter. For example, we have solved 
> this in a mapserver via two different layers for displaying using the FILTER 
> directive and of course the option of having every type of points in its' own 
> layer would be a solution, but this would increase the number of layers 
> dramatically and also make the process of adding / changing slower.
> 
> Thanks for any ideas,
> Matej
> [email protected]
> 
> 

Matej,

Have you tinkered with the symbology tab on the properties layer.
Using the unique value option you can pick an attribute in a column and
assign a color based on it.

I think this is what you are describing.

Alex

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