Hi Ujaval,
Thanks for the "hacky" idea ;-)
I am happy to report that it worked for me.
For the long run, it would be good to have an algorithm to extract a
string from an attribute of a selected feature (something like
attribute(get_feature(expression_to_get_feature),attribute) ) or at
least an "Expression Executor" that outputs a string. Expressions can do
a lot, but getting a string output from an Expression seems to be
impossible.
Anyway, I can progress now with the rest of my model.
Thanks again,
Andreas
On 2020-08-11 10:15, Ujaval Gandhi wrote:
I can think of a slightly hacky way. Use the 'Basic Statistics for Field'
algorithm, and since your field will have a single value, use either the
Minimum or Maximum value output from it (works for string fields too) as the
parameter for another algorithm.
[1]
Ujaval Gandhi
Spatial Thoughts
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On Tue, Aug 11, 2020 at 1:23 PM Andreas Neumann <[email protected]> wrote:
Hi,
In a model I aggregate values to a single feature. Then I would like to extract a specific aggregated attribute to a string so I can use it as the input parameter of another algorithm.
I fail to find a way to do that. Aggregation works fine, string concatenation as well, but I fail to find a way to extract an attribute of a single feature to a string.
Any ideas?
I'm on QGIS 3.10, but if necessary I could also use a newer QGIS version.
Thanks,
Andreas _______________________________________________
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