Re: [Geotools-devel] color layer

[mbedward]

Hello Cintia,

I'm moving your question to the GeoTools user list.

Can you provide more information please ?  For instance, are you are
trying to retrieve the color that has been used by the renderer for a
particular feature ?  Or are you trying to set colours ?

Michael

2009/10/8 Cintia <[hidden email]>:
> Hi,
> How can I get color of a layer?
> Thanks
> Cintia
>

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[mbedward]

2009/10/8 Cintia <[hidden email]>:

> Hi Michael,
> Thank you for your help.
> I want to get a color of a layer that tree menu
>         ContextTreeNode node = (ContextTreeNode)
> tree[0].getLastPathComponent();
>         layer = (MapLayer) node.getUserObject() ;
> Here I get a layer. And the color? The layer is a shapefile (polygon, line
> or point).
> Thanks
> Cintia
>

Hi Cintia,

I see that you are using the gt-widgets-swing-pending module. I'm
afraid that module has no maintainer and will not be continued. The
active module is gt-swing which is minimal compared to
widgets-swing-pending but does have the advantage that it is being
actively developed.

I'm sorry for this terrible confusion of swing module names in
GeoTools 2.6 !  In summary, there is:

gt-swing (modules/unsupported/swing) which is active

gt-widgets-swing (modules/unsupported/widgets-swing) no longer maintained

gt-widgets-swing-pending (modules/unsupported/widgets-swing-pending)
no longer maintained

Now to your question, I'm very sorry but I'm still not able to
understand it properly. What is it that you want to get the colour of
?

I see that you are retrieving a MapLayer in your code but I don't
understand what you want to ask of it.

Michael

PS. please post to the user list so that others may also be able to help you

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[mbedward]

Hi Cintia,

> Does this additional module allows me to create a menu like
> widgets-swing-pending?
> Do you have any example?
> I need to get the color layer to set up something similar to
> LayerStylePropertyPanel, but this doesn´t work very well
> Thank you very much.
> Cintia
>

I don't know exactly what LayerStylePropertyPanel offers because I
can't get it to work :-(

In the gt-swing module there is a dialog class that allows you to set
very basic rendering style elements:

- line colour and width
- fill colour and opacity
- point symbol and size
- label font

http://docs.codehaus.org/display/GEOTDOC/JSimpleStyleDialog

Does that do what you need ?

Michael

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[mbedward]

Hi Cintia

> using JMapFrame. I enable the option to display a LayerTable. How I do to
> show the JSimpleStyleDialog by clicking on the right button on a layer?

The style dialog and layer table are both fairly new components and
are not hooked together properly at the moment.  If you are willing to
be a beta-tester for me I can send you a version of gt-swing that does
what you need (this is code that will be in GeoTools 2.7).

I can either send a jar file or a patch for the source code. Please
let me know which is most convenient for you.

Michael

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