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i'm using the split features tool to create two polygons from a bigger one. The problem is, when i save the split i have done, half of the polygon disappears. But sometimes, after doing some more polygons they appear again, and the last ones in with i was working disappear. Do you know what is happening and what is the solution?

PS: This Shape was made by other people and i don't know how it was made, neither in which program has been created.

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    What software are you using? – Dan C Jan 16 '14 at 18:11
  • What GIS software and version are you using? – PolyGeo Jan 16 '14 at 20:15
  • i'm using Qgis 1.8 – user24821 Jan 17 '14 at 11:10
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Try checking the geometry with the check geometry tool and rebuild the spatial index.

| improve this answer | |
  • i've done that and don't have any problem – user24821 Jan 17 '14 at 11:11

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