<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<!-- Template generated by Exclaimer Mail Disclaimers on 09:23:17 mardi, 25 juillet 2017 -->
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">P.67050b90-a467-4d62-be36-e5ff8cdc9d4b {
MARGIN: 0cm 0cm 0pt
}
LI.67050b90-a467-4d62-be36-e5ff8cdc9d4b {
MARGIN: 0cm 0cm 0pt
}
DIV.67050b90-a467-4d62-be36-e5ff8cdc9d4b {
MARGIN: 0cm 0cm 0pt
}
TABLE.67050b90-a467-4d62-be36-e5ff8cdc9d4bTable {
MARGIN: 0cm 0cm 0pt
}
DIV.Section1 {
page: Section1
}
</style>
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.m59829977786488535067050b90-a467-4d62-be36-e5ff8cdc9d4b, li.m59829977786488535067050b90-a467-4d62-be36-e5ff8cdc9d4b, div.m59829977786488535067050b90-a467-4d62-be36-e5ff8cdc9d4b
{mso-style-name:m_59829977786488535067050b90-a467-4d62-be36-e5ff8cdc9d4b;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="FR" link="blue" vlink="purple">
<p class="67050b90-a467-4d62-be36-e5ff8cdc9d4b"></p>
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Andrew,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Here is the ticket
<a href="https://github.com/PDAL/PDAL/issues/1626">https://github.com/PDAL/PDAL/issues/1626</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Sébastien<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">De :</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Andrew Bell [mailto:andrew.bell.ia@gmail.com]
<br>
<b>Envoyé :</b> lundi 24 juillet 2017 17:46<br>
<b>À :</b> GUIMMARA, Sébastien (External)<br>
<b>Cc :</b> pdal@lists.osgeo.org<br>
<b>Objet :</b> Re: [pdal] [PDAL] Behaviour of filters.crop with and without SRS<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<div>
<p class="MsoNormal">On Mon, Jul 24, 2017 at 10:15 AM, GUIMMARA, Sébastien (External) <<a href="mailto:sebastien.guimmara.external@airbus.com" target="_blank">sebastien.guimmara.external@airbus.com</a>> wrote:<o:p></o:p></p>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hello,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I stumbled upon a strange behaviour using the crop filter. The results are very different when I specify a spatial reference in the LAS reader, and when I omit
one.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">When I specify a spatial reference (EPSG 2286, units in feet), the crop consumes all points, leaving an empty dataset, even if the cropping bounds are equal to
the actual dataset bounds (given by pdal info). However, when I omit the spatial reference, the crop filter behaves as expected.</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US">I use a cropping rectangle via the bounds parameter, and the values are expressed in the file SRS (EPSG 2286).</span><o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I'd need to investigate to understand the behavior. If you have a source file with a few points and a sample pipeline/command line, I can check. You can open a ticket.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I'll note that there is an option, a_srs, for the crop filter that specifies the SRS for the cropping geometry (it's missing in the documentation). However, if you don't provide this option, the code assumes that it's in the SRS of the
input data, so it shouldn't be an issue in this case if I understand.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<p class="MsoNormal">-- <o:p></o:p></p>
<div>
<p class="MsoNormal">Andrew Bell<br>
<a href="mailto:andrew.bell.ia@gmail.com" target="_blank">andrew.bell.ia@gmail.com</a><o:p></o:p></p>
</div>
</div>
</div>
</div>
<p></p>
<p class="67050b90-a467-4d62-be36-e5ff8cdc9d4b"> </p>
<font color="#008000" size="1" face="Verdana"><img border="0" hspace="0" alt="" align="baseline" src="cid:image947abf.JPG@08b578e7.43ab2ba1"> Please consider the environment before printing this email message.</font>
<p></p>
<hr>
<p style="MARGIN-RIGHT: 0px" dir="ltr" class="{Imprint.UniqueID}"><font color="#999999" size="2" face="Verdana"><em>Ce courriel (incluant ses éventuelles pièces jointes) peut contenir des informations confidentielles et/ou protégées ou dont la diffusion est
restreinte. Si vous avez reçu ce courriel par erreur, vous ne devez ni le copier, ni l'utiliser, ni en divulguer le contenu à quiconque. Merci d'en avertir immédiatement l'expéditeur et d'effacer ce courriel de votre système. Airbus DS Geo décline toute responsabilité
en cas de corruption par virus, d'altération ou de falsification de ce courriel lors de sa transmission par voie électronique.<br>
<br>
This email (including any attachments) may contain confidential and/or privileged information or information otherwise protected from disclosure. If you are not the intended recipient, please notify the sender immediately, do not copy this message or any attachments
and do not use it for any purpose or disclose its content to any person, but delete this message and any attachments from your system. Airbus DS Geo disclaims any and all liability if this email transmission was virus corrupted, altered or falsified.</em></font></p>
<hr>
<p style="MARGIN-RIGHT: 0px" dir="ltr" class="{Imprint.UniqueID}"><font color="#999999" size="2" face="Verdana"><em>Airbus DS Geo SA (325 089 589 RCS Toulouse) - Siege social: 5, rue des Satellites, 31400 Toulouse, France.</em></font></p>
<p class="67050b90-a467-4d62-be36-e5ff8cdc9d4b"> </p>
<p class="67050b90-a467-4d62-be36-e5ff8cdc9d4b"></p>
</body>
</html>