Did you get any exceptions in the log to provide a clue? Looking in the
manual it appears the "+" approach is correct:
http://freemarker.org/docs/dgui_template_exp.html#dgui_template_exp_arit
Can you report back when you get a working example so we can add it to our
docs please?
--
Jody Garnett
On 30 October 2017 at 08:22, Uwe Seher <uwe.se...@gmail.com> wrote:
> Hello group!
>
> I created a GetFeatureInfo-template for a 2-band raster layer. This works
> fine and i can get the band values and convert them into numbers and write
> the into a table:
>
> <td>${cell.attributes["dgm"].value?number}</td>
> <td>${cell.attributes["wd"].value?number}</td>
>
> Now i want to add these two values, this is the part that does not work.
>
> this creates a text output like n1 + n2 (n1,2 are the correct numbers)
> ${cell.attributes["dgm"].value?number} + ${cell.attributes["wd"].value?
> number}
>
> This does not work:
> ${${cell.attributes["dgm"].value?number} + ${cell.attributes["wd"].value?
> number}}
>
> Writing a function sum does also not work with the expressions only with
> fixed numbers like 10or 20:
> <#function sum a b>
> <#return a + b>
> </#function>
> ...
> <td>${sum(${cell.attributes["dgm"].value?number},${cell.
> attributes["wd"].value?number})}</td>
>
> Changing the localization does not have an effect:
> <#setting locale="de_DE">
>
> Can someone give me a hint how to add two expressions with freemarker?
>
> Thank you in advance
>
> Uwe
>
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