Referencing an output in an expression in process modeler
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Referencing an output in an expression in process modeler
In the process modeler, I'd like to reference an output of a previous step as one of the parameters of an algorithm. In this case, the previous step was clipping a large raster and I want to use the clipped raster data to shift some vector data, so as the parameter to the vector transform I've got the following:
raster_value(@Clip_raster_by_mask_layer_OUTPUT ,1,$geometry)
This doesn't work. However, if I output everything from the model and then do the same transform operation manually and use 'name_of_clipped_layer' instead of @Clip_raster_by_mask_layer_OUTPUT, then it works as I expect. Is it possible to get this model to do what I want?
qgis raster vector
asked 34 secs ago
Paul WicksPaul Wicks
1507
add a comment |
In the process modeler, I'd like to reference an output of a previous step as one of the parameters of an algorithm. In this case, the previous step was clipping a large raster and I want to use the clipped raster data to shift some vector data, so as the parameter to the vector transform I've got the following:
raster_value(@Clip_raster_by_mask_layer_OUTPUT ,1,$geometry)
This doesn't work. However, if I output everything from the model and then do the same transform operation manually and use 'name_of_clipped_layer' instead of @Clip_raster_by_mask_layer_OUTPUT, then it works as I expect. Is it possible to get this model to do what I want?
qgis raster vector
asked 34 secs ago
Paul WicksPaul Wicks
1507
add a comment |
In the process modeler, I'd like to reference an output of a previous step as one of the parameters of an algorithm. In this case, the previous step was clipping a large raster and I want to use the clipped raster data to shift some vector data, so as the parameter to the vector transform I've got the following:
raster_value(@Clip_raster_by_mask_layer_OUTPUT ,1,$geometry)
This doesn't work. However, if I output everything from the model and then do the same transform operation manually and use 'name_of_clipped_layer' instead of @Clip_raster_by_mask_layer_OUTPUT, then it works as I expect. Is it possible to get this model to do what I want?
qgis raster vector
asked 34 secs ago
Paul WicksPaul Wicks
1507
In the process modeler, I'd like to reference an output of a previous step as one of the parameters of an algorithm. In this case, the previous step was clipping a large raster and I want to use the clipped raster data to shift some vector data, so as the parameter to the vector transform I've got the following:
raster_value(@Clip_raster_by_mask_layer_OUTPUT ,1,$geometry)
This doesn't work. However, if I output everything from the model and then do the same transform operation manually and use 'name_of_clipped_layer' instead of @Clip_raster_by_mask_layer_OUTPUT, then it works as I expect. Is it possible to get this model to do what I want?
qgis raster vector
qgis raster vector
asked 34 secs ago
Paul WicksPaul Wicks
1507
asked 34 secs ago
Paul WicksPaul Wicks
1507
asked 34 secs ago
Paul WicksPaul Wicks
1507
asked 34 secs ago
Paul WicksPaul Wicks
1507
asked 34 secs ago
Paul WicksPaul Wicks
1507
1507
add a comment |
add a comment |
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