[Qgis-user] Variable containing other variable in its value

[Matthias Kuhn - OPENGIS.ch]

Hi,

In 2.14 there is a new function "eval".
You can use "eval(@svg_path)" for this.

Best Matthias

On February 9, 2016 8:57:09 AM GMT+01:00, Fuenfer-Koenigstein.Benjamin at swm.de wrote:
>Dear List Members,
>
>I'm looking for a way to create project-variables that contain other
>variables. This function would be great to define file-path for
>svg-symbols leading to the correct svg-file on different Computers.
>For example:
>Variable: svg_path
>Value: @project_folder + '/svg_symbols/powerplant.svg'
>
>If I type the above standing value in the data defined override for the
>file path in the symbol-selector-menu it works, if I create a variable
>with the same value and use that in the data defined override, it
>doesn't work. Any idea why? Is it just not possible to use variables
>within the value of a variable?
>
>Thanks for any help!
>
>Best regards
>
>Benjamin Fünfer-Königstein
>
>
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