[prev in list] [next in list] [prev in thread] [next in thread] 

List:       qgis-user
Subject:    Re: [Qgis-user] Buffer distance doubt
From:       Yasser Said Lopez de Olmos Reyes <biolyasser () gmail ! com>
Date:       2014-03-31 16:12:49
Message-ID: CALiFUH9L7VHWAdzMzSnrRoMsC__w9HM06mZqXRXzZp-=CQHUmw () mail ! gmail ! com
[Download RAW message or body]

[Attachment #2 (multipart/alternative)]


Yes. Probably you're working with geographic coordinates (longlat) and
you're getting a buffer of 1 grade, it makes sense depending on your
latitude.


2014-03-27 3:32 GMT-06:00 Zoltan Szecsei <zoltans@geograph.co.za>:

>  errr.. never worked with QGIS buffers, and you haven't given much info,
> but:
>
> Is your coord system LatLong?
> Depending on your latitude, 1 degree can be about 100km
>
> HTH,
> Zoltan
>
>
> On 2014/03/27 11:23, Luis Miguel Royo Pérez wrote:
>
> Hi everyone,
>
> I've got a doubt about buffer in the field "Distance"... why are multiple
> of 100km?
>
> I mean, if I insert *1*, the buffer is about *100*km, and so on.
>
> Anyone can resolve my doubt?
>
>
> Thank you!!!
>
>
>
>
> _______________________________________________
> Qgis-user mailing listQgis-user@lists.osgeo.orghttp://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
>
> --
>
> ===========================================
> Zoltan Szecsei PrGISc [PGP0031]
> Geograph (Pty) Ltd.
> GIS and Photogrammetric Services
>
> P.O. Box 7, Muizenberg 7950, South Africa.
>
> Mobile: +27-83-6004028
> Fax:    +27-86-6115323     www.geograph.co.za
> ===========================================
>
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
>



-- 
Saludos,

Yasser

[Attachment #5 (text/html)]

<div dir="ltr">Yes. Probably you&#39;re working with geographic coordinates (longlat) \
and you&#39;re getting a buffer of 1 grade, it makes sense depending on your \
latitude.<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">

2014-03-27 3:32 GMT-06:00 Zoltan Szecsei <span dir="ltr">&lt;<a \
href="mailto:zoltans@geograph.co.za" \
target="_blank">zoltans@geograph.co.za</a>&gt;</span>:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">


  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <div>errr.. never worked with QGIS buffers,
      and you haven&#39;t given much info, but:<br>
      <br>
      Is your coord system LatLong?<br>
      Depending on your latitude, 1 degree can be about 100km<br>
      <br>
      HTH,<br>
      Zoltan<div><div class="h5"><br>
      <br>
      On 2014/03/27 11:23, Luis Miguel Royo Pérez wrote:<br>
    </div></div></div>
    <blockquote type="cite"><div><div class="h5">
      
      Hi everyone,<br>
      <br>
      I&#39;ve got a doubt about buffer in the field &quot;Distance&quot;... why are
      multiple of 100km?<br>
      <br>
      I mean, if I insert <b>1</b>, the buffer is about <b>100</b>km,
      and so on.<br>
      <br>
      Anyone can resolve my doubt? <br>
      <br>
      <br>
      Thank you!!!<br>
      <br>
      <br>
      <br>
      <fieldset></fieldset>
      <br>
      </div></div><pre>_______________________________________________
Qgis-user mailing list
<a href="mailto:Qgis-user@lists.osgeo.org" \
target="_blank">Qgis-user@lists.osgeo.org</a> <a \
href="http://lists.osgeo.org/mailman/listinfo/qgis-user" \
target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a></pre><span \
class="HOEnZb"><font color="#888888">  </font></span></blockquote><span \
class="HOEnZb"><font color="#888888">  <br>
    <br>
    <pre cols="72">-- 

===========================================
Zoltan Szecsei PrGISc [PGP0031]
Geograph (Pty) Ltd.
GIS and Photogrammetric Services

P.O. Box 7, Muizenberg 7950, South Africa.

Mobile: +27-83-6004028
Fax:    +27-86-6115323     <a href="http://www.geograph.co.za" \
target="_blank">www.geograph.co.za</a> \
===========================================</pre>  </font></span></div>

<br>_______________________________________________<br>
Qgis-user mailing list<br>
<a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" \
target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br></blockquote></div><br><br \
clear="all"><br>-- <br>Saludos,<div><br></div><div>Yasser</div>


</div>



_______________________________________________
Qgis-user mailing list
Qgis-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-user

[prev in list] [next in list] [prev in thread] [next in thread]