[Qgis-user] Lidar download

[Sebastian Gutwein]

Jean,
In the US most areas that have flown LiDAR also provide DEM (raster terrain
models) created from the ground points of the datasets.
>From there it is easy to create contours.
NOAA has an inventory of all the areas that have data:
https://coast.noaa.gov/inventory/?redirect=301ocm

On Thu, Mar 4, 2021 at 9:12 PM Nicolas Cadieux <njacadieux.gitlab at gmail.com>
wrote:

> Hi,
>
> 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!)
>
>  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.
>
> 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.
>
>  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.
>
> Good luck
>
> Nicolas Cadieux
> https://gitlab.com/njacadieux
>
> Le 4 mars 2021 à 09:37, jean Lukusa <lukusam at gmail.com> a écrit :
>
> 
> Thank dear Kirk
> I
> My purpose is to generate topographical contour.
> Do you Can suggest to my what lidar .
>
> Jean Lukusa
> B.Sc. Geology
> Trained on Jorc  Code
> GIS  Operator
> +243812156128
>
> Le jeu. 4 mars 2021 à 14:32, Kirk Schmidt <kirk at nortekresources.com> a
> écrit :
>
>> Hi Jean:
>>
>> I am not sure what you are looking for?
>>
>> 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?
>>
>> Kirk Schmidt
>> On 3/4/2021 8:41 AM, jean Lukusa wrote:
>>
>> Hi all ,
>> how Can I download Lidar image from  Qgis 3.18.0 ?
>>
>> Jean Lukusa
>> B.Sc. Geology
>> Trained on Jorc  Code
>> GIS  Operator
>> +243812156128
>>
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>> --
>> Kirk Schmidt, MScF, BScF, RPF
>> General Manager
>> Nortek Resource Solutions Inc.
>> RR # 1
>> Thorburn, NS
>> B0K 1W0
>> Tel (902) 922.3607
>> Email: kirk at nortekresources.com
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>>
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