Bug report #11857: batching of rasterize function - QGIS Application - QGIS Issue Tracking

Bug report #11857

batching of rasterize function

Added by Marcel Gangwisch over 9 years ago. Updated over 9 years ago.

Status:	Closed
Priority:	Normal
Assignee:	-
Category:	Processing/GDAL
Affected QGIS version:	2.6.0	Regression?:	No
Operating System:		Easy fix?:	No
Pull Request or Patch supplied:	No	Resolution:	invalid
Crashes QGIS or corrupts data:	No	Copied to github as #:	20072

Description

This bug is only concerning the new version 2.6... It works on 2.4.

If you try to convert several shapes to raster using the batch utility, you are asked for the ouput directory...
but there is no field to type it in...

screenshot.png (69.1 KB) Marcel Gangwisch, 2014-12-14 11:42 PM

screenshot2.png (32.8 KB) Marcel Gangwisch, 2014-12-15 04:26 AM

screenshot3.png (68.5 KB) Marcel Gangwisch, 2014-12-15 05:47 AM

rasterize_batch.mp4 (2.96 MB) Giovanni Manghi, 2014-12-15 08:13 AM

ScreenCapture_2014-12-15_17.33.10__1_.mp4 (1.72 MB) Marcel Gangwisch, 2014-12-15 08:56 AM

History

#1 Updated by Marcel Gangwisch over 9 years ago

see also the reference for the function:
http://docs.qgis.org/2.6/de/docs/user_manual/processing_algs/gdalogr/gdal_conversion/rasterize.html

The ouput is:
Output layer: mandatory to choose an existing raster layer if the (*) option is selected

#2 Updated by Giovanni Manghi over 9 years ago

Category set to Processing/GDAL
Status changed from Open to Feedback

are you sure you are using the latest Processing version and you don't have a old update masking the latest code? It works fine here on 2.6.

#3 Updated by Marcel Gangwisch over 9 years ago

I'm using QGIS 2.6.0 - Brighton 64 Bit on Windows 7 also 64 Bit...
And my version is compiled against GDAL 1.11.0...

If you say that it works, I just download it again and try the current version which is online.

#4 Updated by Marcel Gangwisch over 9 years ago

File screenshot.png added

Hm after reinstall, I get the same problem, that there is no field to type the output directory.
See attached screenshot :)

#5 Updated by Giovanni Manghi over 9 years ago

I think there is a misunderstanding here: the tools does not ask for an output folder, is asks for output files. In case of selecting the "write values into an existing raster layer" then the output must exist beforehand and must be selected as output.

#6 Updated by Marcel Gangwisch over 9 years ago

File screenshot2.png added

Yes I know what you mean, but in QGIS 2.4 it was also possible to use the rasterize function without having existing raster layer..

What I mean I dont click the checkbox for "In case of selecting the "write values into an existing raster layer"".

I just want to write the raster in an output directory without an existing raster.

And this is not possible, because you can not type the output folder for the new raster which will be created by the rasterize function.

Do you know what I mean?

Attached to this message I added a screenshot from QGIS 2.4 and marked the output folder field.

#7 Updated by Giovanni Manghi over 9 years ago

Marcel Gangwisch wrote:

Yes I know what you mean, but in QGIS 2.4 it was also possible to use the rasterize function without having existing raster layer..

What I mean I dont click the checkbox for "In case of selecting the "write values into an existing raster layer"".

I just want to write the raster in an output directory without an existing raster.

And this is not possible, because you can not type the output folder for the new raster which will be created by the rasterize function.

Do you know what I mean?

this is the point, it works fine here even when not checking that option and outputting a new layer, both running the tool normally and in batch mode.

Please check if inside .qgis2/python/plugins you have a "processing" folder.

#8 Updated by Marcel Gangwisch over 9 years ago

File screenshot3.png added

Giovanni Manghi wrote:

Marcel Gangwisch wrote:

Yes I know what you mean, but in QGIS 2.4 it was also possible to use the rasterize function without having existing raster layer..

What I mean I dont click the checkbox for "In case of selecting the "write values into an existing raster layer"".

I just want to write the raster in an output directory without an existing raster.

And this is not possible, because you can not type the output folder for the new raster which will be created by the rasterize function.

Do you know what I mean?

this is the point, it works fine here even when not checking that option and outputting a new layer, both running the tool normally and in batch mode.

Please check if inside .qgis2/python/plugins you have a "processing" folder.

This time I attached again a screenshot showing that I did not check the button for "write values into an existing raster layer". As the screenshot shows I get the error message: Wrong or missing parameter value: Output layer: mandatory to choose an existing raster layer in the (*) option is selected (line 1)

To your question:
I looked for the processing folder.. But there is no processing folder in .qgis2/python/plugins
So this is the problem?

#9 Updated by Giovanni Manghi over 9 years ago

Status changed from Feedback to Closed
Resolution set to invalid

This time I attached again a screenshot showing that I did not check the button for "write values into an existing raster layer". As the screenshot shows I get the error message: Wrong or missing parameter value: Output layer: mandatory to choose an existing raster layer in the (*) option is selected (line 1)

you get it because in batch mode you must fill all the lines you see in the interface, and you cannot run it with just 1 line filled (min is 2).