[Qgis-user] How to create valid new shapefiles with qgis and a buffer around?

Sun, 01 May 2016 09:32:50 -0700 

Hi,

I created new shapefile layers (point, line and polygon) with qgis and tried 
to create buffers around, but it does not work properly -> the buffer is 
much to large, I want to create a buffer with e.g. 40 m and then the buffer 
is much bigger.

Since buffering works fine with other shapefiles (that are not created by 
me with qgis), my created shapefiles must have mistakes.

Can anyone help?

My example files:

https://www.dropbox.com/sh/9nl6b1vkghfxzl3/AABprQ-5ck4je8-sTqWafZx_a?dl=0

Thanks in advance and


best regards

Marcel


OpenSuse 13.1


QGIS-Version
2.8.8-Wien
QGIS-Codeversion
exported
Kompiliert gegen Qt
4.8.5
Laufendes Qt
4.8.5
Kompiliert mit GDAL/OGR
2.0.2
Läuft mit GDAL/OGR
2.0.2
Kompiliert mit GEOS
3.5.0-CAPI-1.9.0
Läuft mit GEOS
3.5.0-CAPI-1.9.0 r4084
PostgreSQL-Client-Version
9.2.14
SpatiaLite-Version
4.3.0a
QWT-Version
5.2.3
PROJ.4-Version
492
QScintilla2-Version
2.7.2

Attachment: line.dbf
Description: application/dbf

GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 
84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]

Attachment: line40.dbf
Description: application/dbf

Attachment: line.shx
Description: application/esri-shape-index

GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]

Attachment: line.shp
Description: application/esri-shape

GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 
84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]

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