[Qgis-user] Vector symbology from attribute table

[Andreas Neumann]

Hi Leo,

This is a limitation of the data-defined symbology.

There is no workaround other than designing your legend in a graphics
software like Illustrator or Inkscape and importing it as an SVG into
the print composer.

Funding would be welcome to develop support for legends based on
data-defined symbology. Also one would need a specification how this
should be implemented.

Andreas


Am 05.08.2014 02:54, schrieb Leo Kris Palao:
> Hi Zoltan,
> 
> I tried it and it was working, it defines well the symbology of my
> vector layer. However, there is a little bit of problem. In my legend
> items it only create one color (black). the color scheme of my legend
> doesn't seem to follow the color combinations that I set in my attribute
> table. it would be better if the color scheme of my attribute table will
> be reflected also in my legend items.
> 
> This is how I encoded the color codes in my attribute table:
> class                                  color (R, G, B)
> 1                                         197, 197, 197
> 
> Thanks,
> -Leo
> 
> 
> On Mon, Aug 4, 2014 at 5:31 PM, Siki Zoltan <siki at agt.bme.hu
> <mailto:siki at agt.bme.hu>> wrote:
> 
>     Dear Leo,
> 
>     you can do it in the properties dialog of the layer.
>     For example if you have a polygon layer, and the fill color is
>     stored in the attribute table of the layer than
>     1. open properties dialog of the layer
>     2. select style tab (left)
>     3. click on "Simple fill" under symbol layers (if you can't see Simple
>     fill, click on the triangle before Fill to extend the tree)
>     4. click on data defined properties... button
>     5. you can give an attribute or an expression of attributes to
>     define the fill color
> 
>     I hope it helps you,
>     Zoltan
> 
> 
>     On Mon, 4 Aug 2014, Leo Kris Palao wrote:
> 
>         Hi QGIS users,
> 
>         Is there a way to automatically define the symbology of vector
>         layer using
>         a column in the attribute table that defines the RGB?
> 
>         I want to do this to have a uniform color coding for each land
>         use types.
>         Some land use types might have more or less classes than for each
>         administrative boundary. I am thinking if I can encode the RGB
>         values in my
>         attribute table and later use it to define my symbology.
> 
>         Thanks for any help and advice,
>         -Leo
> 
> 
> 
> 
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