On 11/11/2011, at 20:40, "Chris Green" <[email protected]> wrote:
> Hello > > I am using QGIS 1.7 in a Windows 7 environment. Everything seems great except > for the simplify function (Vector->Geometry Tools->Simplify Geometries) > > I am trying to simplify an ESRI shape file which is around 95M. I have tried > various tolerance settings, but although it looks like some simplification is > taking place, actually the file is unchanged. So for example with tolerance > setting of 1.0 I get an encouraging message that says: > > ‘There were 3638321 vertices in original dataset which were reduced to 559351 > vertices after simplification’ > > However after saving the changes to the layer, the dataset still looks > identical to the un-simplified version and the file size remains unchanged at > 95M. I have tried to simplify smaller shape files also, but with the same > result. > > Can someone tell me what I am I doing wrong? > Hi Chris, This is a guess... I suppose your output file is different to your input file? (otherwise windows will probably get confused) -ramon.
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