<div dir="ltr">Jean,<div>In the US most areas that have flown LiDAR also provide DEM (raster terrain models) created from the ground points of the datasets. </div><div>From there it is easy to create contours. </div><div>NOAA has an inventory of all the areas that have data: <a href="https://coast.noaa.gov/inventory/?redirect=301ocm">https://coast.noaa.gov/inventory/?redirect=301ocm</a></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Mar 4, 2021 at 9:12 PM Nicolas Cadieux <<a href="mailto:njacadieux.gitlab@gmail.com">njacadieux.gitlab@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Hi,<div><br><div>If you want to create contour lines, you will need a Lidar data point and then create a DEM from which you will extract contour lines. (That’s the most common way of do it!)</div><div><br></div><div> LiDAR is new in QGIS and i’am not sure what files formats are supported yet. I had trouble with the current version. It did show support for a json file format but I expect the las/laz format support will pop up once the bugs are worked out. In the mean while, I would use CloudCompare (OpenSource) to read the cloud and create the DEM. Then, you could import the DEM into QGIS to extract the contour lines. </div><div><br></div><div>If you want us to propose à data sets, then, I suggest you give us an idea of where you are working. LiDar data is currently spars depending on the country and area. You may get lucky as more open data is being produced every day. </div><div><br></div><div> I may suggest the lastool (openlaso) user list. They have good knowledge of lidar data sources. Lastool is a suit of tool to work with LiDar. Some tools are OpenSource and some are not. Read the individual license so you don’t violate the licenses.</div><div><br></div><div>Good luck<br><br><div dir="ltr">Nicolas Cadieux<div><a href="https://gitlab.com/njacadieux" target="_blank">https://gitlab.com/njacadieux</a></div></div><div dir="ltr"><br><blockquote type="cite">Le 4 mars 2021 à 09:37, jean Lukusa <<a href="mailto:lukusam@gmail.com" target="_blank">lukusam@gmail.com</a>> a écrit :<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div dir="auto"><div>Thank dear Kirk </div><div dir="auto">I</div><div dir="auto">My purpose is to generate topographical contour.</div><div dir="auto">Do you Can suggest to my what lidar .<br><br><div dir="auto">Jean Lukusa<br>B.Sc. Geology<br>Trained on Jorc Code<br>GIS Operator <br>+243812156128</div><br><div class="gmail_quote" dir="auto"><div dir="ltr">Le jeu. 4 mars 2021 à 14:32, Kirk Schmidt <<a href="mailto:kirk@nortekresources.com" target="_blank">kirk@nortekresources.com</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Hi Jean:</p>
<p>I am not sure what you are looking for?<br>
</p>
<p>Do you want to download a lidar derived image (such as a surface
model) or do you want to work with raw point cloud data?</p>
<p>Kirk Schmidt</p>
<div>On 3/4/2021 8:41 AM, jean Lukusa wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">Hi all ,
<div dir="auto">how Can I download Lidar image from Qgis 3.18.0
?<br>
<br>
<div dir="auto">Jean Lukusa<br>
B.Sc. Geology<br>
Trained on Jorc Code<br>
GIS Operator <br>
+243812156128</div>
</div>
</div>
<br>
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