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Have a look at QGIS2threejs. It allows you to export a terrain model to a web viewer. it's available as a plugin, just search for it in the plugins dialog.
https://plugins.qgis.org/plugins/Qgis2threejs/
There are settings for draping a DTM with an ortophoto, as well as extruding polygons and so on.
Not sure if it works out of the box with a mesh geometry, ...
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Your data is not a regular grid, you have missing points. The XYZ format description specifies "no missing value is supported".
Below is an image of a small section of the western edge of the data visualised as points showing the missing values.
To convert your data to raster, you can use gdal_grid. gdal_grid doesn't support the full range of OGR open ...
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Measuring the elevation along a transect is a bit like measuring the length of a coastline. If you change the resolution, you change the final result, but none of the result is relevant if you don't mention the scale of the measurement. If you look at a portion of soil with a binocular, every grain of sand will be a cliff. If you fly high on a plane, only ...
2
You can also use QGIS (which is open source) and/or Blender plugin Blender GIS.
Using QGIS, you can make a SHP (shapefile) out of a DEM and with Blender GIS you make a mesh out of the SHP (see this question and this question), or, you can import SRTM directly into Blender using only Blender GIS.
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Try this approach:
Under QGIS save the raster as GeoTIFF from Raster -> Conversion -> Translate (convert format).... This is actually an interface to the underlying gdal_translate.
(optional) Open the GeoTIFF in GIMP or Photoshop
(optional) Save the file as simple TIFF
Open in Blender
Screenshot of the gdal_translate interface.
Make sure you select UInt16....
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Is it possible to use other software? I mean CloudCompare. It is free software that will generate geotiff quickly and easily in a few clicks. I made a simple gif with sample asc file:
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Picture below shows talweg, generated by using flood depth and flow paths derived by using Hydrology tools:
As one can see flow paths depict channel shape in a well defined valleys without depressions along it. If there is one, results are random.
What is happening on a flat terrain is absolutely out of control, your pictures illustrate this nicely. So in ...
1
You can take you LAS files and add them to an LAS Dataset in ArcGIS. Then, use the LAS Dataset tool to filter the point cloud for different returns. Finally, use the LAS Dataset to Raster tool to create surfaces from your LiDAR data. See this link.
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That's a easy task with rasterio. For each band the data is accessible as a kind of array.
So:
import rasterio
# Which band are you interested.
# 1 if there is only one band
band_of_interest = 1
# Row and Columns of the raster you want to know
# the value
row_of_interest = 30
column_of_interest = 50
# open the raster and close it automatically
# See ...
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This is just a display issue that stems from GIS software defaulting the color scale bounds to match the min and max values displayed in each tile of your DEM. To make them match, simply change the bounds of all of your images to the same values, making sure that you choose min and max that are small and large enough, respectively, to allow for all of the ...
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