3

I have a list of points and I want to insert attribute number for each point. The number should increase from 1 to the last point. (30 in the example below)

enter image description here

  • 1
    Perhaps this post might help: QGis Making Column Value of Attribute table unique – Joseph Jun 7 '17 at 11:10
  • @Joseph the rownum are mixed. I have couple of listings like above and I need to start from 1 everytime. – Guy Jun 7 '17 at 11:18
  • What do you mean by "list"? If each set of points is a separate layer, the linked solution will still work fine. – Senshi Jun 7 '17 at 12:08
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If your points were not plotted sequentially, and you still need to label it from west to east (left to right), please give a try to MMQGIS sort function:

(1) Create a new field "x_loc" with an expression $x

(2) Activate MMQGIS plugin Menu | MMQGIS | Modify | Sort

(3) On Sort Attributes dialog windo, give your point layer (e.g. points) to sort (ascending) by "x_loc" field and save it to disk (e.g. C:/temp/sorted.shp).

enter image description here

(4) Open attribute table of this sorted layer and add new field "rownum" (expression $rownum) as a solution linked in Joseph's comment.

(5) Then the attribute may look like above RHS image. Annotate the points by "rownum" field. (black: original "id", red: "rownum")

enter image description here

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