Feature request #5501

"Union/Intersect" tools that allows more than 2 input files

Added by Filipe Dias over 5 years ago. Updated 6 months ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Processing/QGIS
Pull Request or Patch supplied:No Resolution:
Easy fix?:

Description

"Union" tool that allows more than 2 input features

The only software that I know that does this is arcgis

http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=union_%28analysis%29

10.png (82.6 KB) Giovanni Manghi, 09/10/2012 01:58 AM

History

#1 Updated by Giovanni Manghi over 5 years ago

should not be better to add this feature to "ftools" (the vector menu) and then expose this in Sextante?

#2 Updated by Filipe Dias over 5 years ago

Maybe there's already such a tool in the open source world? If yes it could be added to Sextante.

#3 Updated by Giovanni Manghi over 5 years ago

Filipe Dias wrote:

Maybe there's already such a tool in the open source world? If yes it could be added to Sextante.

For what I understand from a search it seems that other software packages do union multiple vectors in a "cascade": union the first two with the third, the result with the fourth and so on. I would be very handy indeed, but still not sure if it would make more sense to add this feature directly in ftools or in sextante. I vote for the first option and so to move this ticket to the qgis desktop tracker, but obviously Victor has the last word.

#4 Updated by Filipe Dias over 5 years ago

If there's no "Union tool" that's ready to use and to be ported to Sextante, then yes this ticket should be moved to ftools.

#5 Updated by Giovanni Manghi about 5 years ago

  • Project changed from 78 to QGIS Application
  • Category deleted (71)

#6 Updated by Giovanni Manghi about 5 years ago

  • Category set to 44
  • Target version set to Version 2.0.0
  • Assignee deleted (Victor Olaya)

#7 Updated by Giovanni Manghi about 5 years ago

  • File 10.png added
  • Subject changed from "Union" tool that allows more than 2 input files to "Union/Intersect" tools that allows more than 2 input files

Attached a screenshot that shows how the Arc* GUI is made (to allow select more than 2 input files). I guess that under the hood the files are processed in a loop two by two where the result is unioned/intersected with the following input file.

#8 Updated by Pirmin Kalberer about 5 years ago

  • Target version changed from Version 2.0.0 to Future Release - Nice to have

#9 Updated by Filipe Dias almost 3 years ago

  • Status changed from Open to Closed

#10 Updated by Giovanni Manghi 6 months ago

The "ftools" category is being removed from the tracker, changing the category of this ticket to "Processing/QGIS" to not leave the category orphaned.

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