<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Hi Mike, <br>
</p>
<p>to start with, it'd be good to know what kind of data you are
working with. Is your "DSM" a raster file (i.e. pixels) or a
vector file containing the contours?</p>
<p>If it's a raster, you can create the contours by selecting
"Raster" -> "Extraction" -> "Contour" from the menu, then
select your input (raster) file and an appropriate interval, as
well as an output file (your contours will be saved here). Also,
check the "Attribute name" box and enter something ("ELEV" is a
good idea) into the field next to it. This will allow you to
filter the contours later.</p>
<p>Load the contour file into QGIS, if not done automatically, and
right-click on it in the Layers Panel (like Matt suggested). If
your height attribute is called "ELEV" and you want to display the
lines between 0 and 10 (unit is the same that your raster file was
in), you can enter <br>
</p>
<p>"ELEV" > 0 AND "ELEV" < 10</p>
<p>in the "Provider specific filter expression" section. Press OK
and you should have what you want. This filter does not change the
dataset, and if you load the same file again, you will have the
original lines again.<br>
</p>
<p>Cheers,<br>
Lukas<br>
</p>
<br>
<div class="moz-cite-prefix">On 03.07.2017 13:53, imagineaerial
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:D2D404CA-6524-4DC1-84FA-AE312837D478@imagine-aerial.com">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
Matt,
<div class=""><br class="">
</div>
<div class="">Thanks for the response. I am afraid that I am
still pretty new to all of this, would you mind going into a
little more detail</div>
<div class="">for me? For instance, I am not familiar with syntax
and SQL. Also, what does field X and Y signify? I am working
off of </div>
<div class="">a simple DSM that was created using a UAV.</div>
<div class=""><br class="">
</div>
<div class="">Thanks for any additional help!</div>
<div class=""><br class="">
</div>
<div class="">- Mike</div>
<div class=""><br class="">
</div>
<div class=""><br class="">
<div class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space;
-webkit-line-break: after-white-space;" class="">
<div style="color: rgb(0, 0, 0); font-family: Didot;
font-size: 14px; font-style: normal; font-variant-caps:
normal; font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; word-spacing: 0px;
-webkit-text-stroke-width: 0px;">
<table style="box-sizing: content-box; width: 448px;
text-align: initial;" class="" cellspacing="0"
cellpadding="0" width="440" border="0">
<tbody class="">
<tr class="">
<td style="box-sizing: content-box; vertical-align:
middle;" class="" height="114" width="114"><img
src="https://s3.amazonaws.com/ucwebapp.wisestamp.com/043c4e95-280a-4dc7-aa80-1dcf19d9fb21/IALogo.format_png.resize_200x.png#logo"
alt="photo" style="box-sizing: content-box;
border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom-left-radius: 4px; width: 114px;
height: 114px; max-width: 140px; max-height:
150px;" class="" moz-do-not-send="true"
height="114" width="114"></td>
<td style="width: 21px; box-sizing: content-box;
text-align: initial; vertical-align: middle;
padding: 0px 7px 2px;" class="" width="21"><a
href="http://link.wisestamp.com/wf/click?upn=vpKJERi1tY7PB5Tngc96A1yhcA3YssgqhW2CXQtXY0zLixRK-2BOixNcgngO7BawJe_lBa7v2o5b2dBFosQcE4zGwBkWF-2BUh5yCJbpX-2FrM-2Br27CIySWBsHuCBDZeoJH-2FtYy-2FLOUqrTkcZ360-2BJRttDM7TeMLJ-2FaYNRWOQR7HynrYXO6B7r6U5JPaC-2FS1LXzjPdn-2BBGBo9lR8PpiezKhyjYT6RwuU6O91w5XLDXq6RyVGPh2Yn8a9YQxTVLno7mIQZjZLRIgfizlancQAuWxSDIoQOqCWzm-2BsrIy3l7gPXrDcT1pXZkkOYpFVI-2BH638xoN1zIoVKo4rk5H-2BA0SmZOmiwfw-3D-3D"
target="_blank" class="" rel="nofollow"
link="external" moz-do-not-send="true"><img
src="https://s3.amazonaws.com/images.wisestamp.com/icons_32/facebook.png"
style="border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom-left-radius: 4px; border: 0px;
width: 24px; height: 24px;" class=""
moz-do-not-send="true" height="24" width="24"></a> <a
href="http://link.wisestamp.com/wf/click?upn=yERdA-2F0p-2F761pa-2Fiulqrifyu0UogTJi6N9uTP-2B4omY-2FY0VRAaVCQNcnBk3GfLqjh_lBa7v2o5b2dBFosQcE4zGwBkWF-2BUh5yCJbpX-2FrM-2Br27CIySWBsHuCBDZeoJH-2FtYy-2FLOUqrTkcZ360-2BJRttDM7c6lwCv-2BG2X6MUVJv6EK7n-2BMdvLfPKjcODY7WdQSosclfEMAfIqw4Le-2BimH3OOXkZd3CJ1iM1ph5IEIRwbiRLIoTFauuGymlOaRnqS9hvEQRGMRmkFAHFUS-2F5hi-2FOM8rh27WitUsACfVr7z-2Bz4eDKDz5wJHI0Zz3xH0blC2gXybVEw3NKHNkA1sgs1OFa0FdSQ-3D-3D"
target="_blank" class="" rel="nofollow"
link="external" moz-do-not-send="true"><img
src="https://s3.amazonaws.com/images.wisestamp.com/icons_32/linkedin.png"
style="border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom-left-radius: 4px; border: 0px;
width: 24px; height: 24px;" class=""
moz-do-not-send="true" height="24" width="24"></a> <a
href="http://link.wisestamp.com/wf/click?upn=frqkw0-2BXQfUAqxIenKLOlO66scExZFTbzREOmSOOXIGyzB7oiatH4RfFCs3a1ltK_lBa7v2o5b2dBFosQcE4zGwBkWF-2BUh5yCJbpX-2FrM-2Br27CIySWBsHuCBDZeoJH-2FtYy-2FLOUqrTkcZ360-2BJRttDM7R3e8dhsEc9x4RVxaZlfTzwaVdv-2FCM-2Fx2Bgi-2BFqwqRFg2e-2F2h30GxBcubdot9dvLsMpxa8GZm8TIcDMVEbVMbbwVbQ-2FExjoHi9xQrESNETSVzwLKvU8q-2FZMMV14sBMV3rcODTgHSWItlAl24HM-2BmaUnMTph-2FcBKW4uNg8hSrkkWcj2en-2Fb83-2FOnF1Tkcrxy74Q-3D-3D"
target="_blank" class="" rel="nofollow"
link="external" moz-do-not-send="true"><img
src="https://s3.amazonaws.com/images.wisestamp.com/icons_32/twitter.png"
style="border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom-left-radius: 4px; border: 0px;
width: 24px; height: 24px;" class=""
moz-do-not-send="true" height="24" width="24"></a> <a
href="http://link.wisestamp.com/wf/click?upn=LgCARJHnjtd3UE8bx6jzprVeOLOXU0Sv5i3Om6jK28PNj3S2EuN21vx2CL8vCQYy_lBa7v2o5b2dBFosQcE4zGwBkWF-2BUh5yCJbpX-2FrM-2Br27CIySWBsHuCBDZeoJH-2FtYy-2FLOUqrTkcZ360-2BJRttDM7dv974ecgoHCP9wndqT4Wh5dZ7kycnfpcDDOSbDDaNQdEzjM3GR8nRs-2BfIdotN55ycxEEaGgpamdUg1argxGpDVHIrB-2F8vdWbhpc9s8IZ5-2BGZcw9RZz0W-2BuyTL63UiJQcGNDdplAMwAqYzy2klnVST-2Faim-2FIgv5-2FuskVJsaB-2F-2BV4KQHQozdJU9wjn6prtJW6ng-3D-3D"
target="_blank" class="" rel="nofollow"
link="external" moz-do-not-send="true"><img
src="https://s3.amazonaws.com/images.wisestamp.com/icons_32/instagram.png"
style="border-top-left-radius: 4px;
border-top-right-radius: 4px;
border-bottom-right-radius: 4px;
border-bottom-left-radius: 4px; border: 0px;
width: 24px; height: 24px;" class=""
moz-do-not-send="true" height="24" width="24"></a></td>
<td class="border-color" style="box-sizing:
content-box; border-right-width: 1px;
border-right-style: dashed; border-right-color:
rgb(204, 204, 204);"><br>
</td>
<td style="box-sizing: content-box; min-width:
185px; max-width: 200px; padding-left: 5px;
padding-right: 5px; text-align: initial;
vertical-align: top; margin-top: 10px;" class=""><span
style="font-size: 15px;" class=""><span
style="box-sizing: content-box; color: rgb(94,
94, 94);" class="">Michael J Finn III</span><br
class="">
<span style="box-sizing: content-box; color:
rgb(94, 94, 94);" class=""><span
style="box-sizing: content-box;" class="">Owner,
FAA Certified Remote Pilot</span>, <span
style="box-sizing: content-box; word-break:
break-word; display: inline-block;" class="">Imagine
Aerial, LLC</span></span><br class="">
<span style="box-sizing: content-box; color:
rgb(136, 136, 136); padding-top: 5px;"
class=""><a href=<a class="moz-txt-link-rfc2396E" href="tel:c.443-942-0345">"tel:c. 443-942-0345"</a>
style="display: inline-block; box-sizing:
content-box; color: rgb(136, 136, 136);
text-decoration: none;" class="">c.
443-942-0345 <br class="">
</span></span><a
href="http://link.wisestamp.com/wf/click?upn=JpWBgyEnwHH-2BZ-2F6q0khuJD5JN0xpRQ1k8-2BVCLNUxNzhjjH-2F7GQjAU4h1FvfPHV0l_lBa7v2o5b2dBFosQcE4zGwBkWF-2BUh5yCJbpX-2FrM-2Br27CIySWBsHuCBDZeoJH-2FtYy-2FLOUqrTkcZ360-2BJRttDM7VzqMkJB5i7dLD1ZL6dLZjvPP-2F3hR1Hv4wjprwzrj2wQ8Yqy4ZmIoJVePWWIRG8JPL5pF7jvNZDWRRfqbX0aZOOO7tyiGedvftxQe5JDQakPblnteelRnv56t5zeoVfbSzXFHDPbUevA72cozFp4EotfAq5wSIKrDR3vQgJYr-2FOJv6IRY2-2B4wPcXeN0jS5Rudg-3D-3D"
style="font-size: 15px;" class="" target="_top"
rel="nofollow" link="external"
moz-do-not-send="true">www.imagine-aerial.com</a><span
style="font-size: 15px;" class=""><span
style="box-sizing: content-box; color:
rgb(136, 136, 136); padding-top: 5px;"
class=""><a
href="/user/SendEmail.jtp?type=node&node=5326490&i=0"
target="_top" rel="nofollow" link="external"
moz-do-not-send="true">[hidden email]</a></span></span></td>
</tr>
</tbody>
</table>
<div class=""><br class="">
</div>
</div>
<div style="color: rgb(0, 0, 0); font-family: Didot;
font-size: 14px; font-style: normal; font-variant-caps:
normal; font-weight: normal; letter-spacing: normal;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; word-spacing: 0px;
-webkit-text-stroke-width: 0px;" class=""><br class="">
</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
</div>
<br class="">
</div>
<img
src="https://master.mailbutler.io/tracking/857AEA4D-A3B8-43D0-8918-361CB7DDE7CD"
style="width:0;height:0;border:0;" title="" alt=""
id="MailButlerTrackingPixel" class="" moz-do-not-send="true"
align="left" height="0" width="0"> <br>
<hr align="left" width="300">
View this message in context: <a
href="http://osgeo-org.1560.x6.nabble.com/limiting-contour-lines-to-range-of-elevations-tp5326289p5326490.html"
moz-do-not-send="true">Re: limiting contour lines to range of
elevations</a><br>
Sent from the <a
href="http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html"
moz-do-not-send="true">QGIS - User mailing list archive</a> at
Nabble.com.<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Qgis-user mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a>
List info: <a class="moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/qgis-user">https://lists.osgeo.org/mailman/listinfo/qgis-user</a>
Unsubscribe: <a class="moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/qgis-user">https://lists.osgeo.org/mailman/listinfo/qgis-user</a></pre>
</blockquote>
<br>
<div class="moz-signature">-- <br>
<table border="0">
<tbody>
<tr>
<td>
<pre>Lukas Winiwarter
Stud. Ass.
Tel: +43-(0)1-58801-12246
Fax: +43-(0)1-58801-912246
Email: <a class="moz-txt-link-abbreviated" href="mailto:lukas.winiwarter@tuwien.ac.at">lukas.winiwarter@tuwien.ac.at</a>
<a class="moz-txt-link-freetext" href="http://photo.geo.tuwien.ac.at/">http://photo.geo.tuwien.ac.at/</a>
</pre>
</td>
<td>
<pre>TU Wien,
Department of Geodesy and
Geoinformation (E120),
Research Group Photogrammetry
Gußhausstraße 27-29
1040 Vienna, Austria
</pre>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>