Feature request #5501

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

Added by Filipe Dias over 12 years ago. Updated over 7 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Processing/QGIS
Pull Request or Patch supplied:No Resolution:
Easy fix?: Copied to github as #:15113

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, 2012-09-10 01:58 AM

History

#1 Updated by Giovanni Manghi over 12 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 12 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 12 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 12 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 12 years ago

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

#6 Updated by Giovanni Manghi about 12 years ago

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

#7 Updated by Giovanni Manghi about 12 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 12 years ago

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

#9 Updated by Filipe Dias almost 10 years ago

  • Status changed from Open to Closed

#10 Updated by Giovanni Manghi over 7 years 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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