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I am having a puzzle about using mmqgis create vector layer option. I want to use UTM CSRThis are my options:

this are my options. I want a grid of 20,000 meters in the east and north axis. Nevertheless i have an error screen stating: "invalid width/height 6.0/6.0". As I understand my settings I should have 6 lines separated by 20,000 meters Am I understanding this in the wrong way? Thanks in advance

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2 Answers 2

up vote 4 down vote accepted

Without checking, I would interpret to options as follows:

  • left x: min x
  • width: width of the complete grid, therefore ... min x + width = max x
  • h spacing: width of one cell

same for the second dimension

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Yes! That was what I was looking to understand! Thanks for your time –  Gerardo Jimenez Nov 20 '12 at 19:16
If the answer was current, please consider to upvote it and\or accept it. –  Alexandre Neto Nov 20 '12 at 19:45

I was getting this error too. The problem is is that the Width is less than the H Spacing you should just lower the H Spacing and the V Spacing will update automatically.

you can see the error in the source here:

search for Invalid width / height

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also here is the documentation michaelminn.com/linux/mmqgis –  Benjamin Rothschild May 1 '13 at 4:51

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