Hi, There might be more information in the *Info* drop-down menu. Expand it, please.
Harrissou Le jeu. 27 sept. 2018 à 16:55, Ben Hur Pintor <bnhr....@gmail.com> a écrit : > Hi everyone. > > I apologize if this has been asked before but I would just like to clarify > if this is how the buffer algorithm in QGIS should function. > > *Issue:* The actual distance from the input layer to the buffer polygon > created by the Buffer processing tool (and v.buffer) is not equal (only > around 80%) to the Distance parameter provided in the said tool. > > *Example:* My coordinate reference system is WGS84/UTM Zone 51N (EPSG: > 32651). I create a 100m buffer around a point but when I measure the > resulting circle, its edge is only ~80m from the point (see buffer-point > and buffer-point-distance below). > > buffer-point.png > <https://drive.google.com/file/d/1SAptLcRKnGVc8zyESkl-sJZ23a5OWEsy/view?usp=drive_web> > > buffer-point-distance.png > <https://drive.google.com/file/d/1aQ0mfadGnEzISkPnu-GGX9SUu1GXhGMs/view?usp=drive_web> > > I create a 50m buffer around a line but when I measure the resulting > buffer, its edge is only ~40m from the line (see line-buffer and > line-buffer-distance below). > > line-buffer.png > <https://drive.google.com/file/d/11cNTRNbHxB3cFCaZEhXDWqKYEdWJX31K/view?usp=drive_web> > > line-buffer-distance.png > <https://drive.google.com/file/d/1PGRabSqF-zrOCpAboncQ_yQxx_0ulByN/view?usp=drive_web> > > > Clarifications will be much appreciated. Maybe I just missed some part of > the documentation. > > Thank you. > > Sincerely, > Ben Hur > > -- > --- > > *Ben Hur S. Pintor* > bnhr.xyz > > > Consultancy · Training & Support · Development & Innovation > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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