Questions tagged [point-cloud]
A point cloud is an unstructured set of points, each defined by x,y,z co-ordinates.
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Open platform to visualised bathymetry LiDAR
I have point cloud data that I want to visualise on an open platform, which I can extend tools upon to investigate further.
I was wondering if any offer a visualisation like below, where the ...
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Issue with Inactive Volume Analysis Toolbar in TREND-POINT
I am currently using the TREND-POINT software to perform volume analysis using mesh after loading two txt format point cloud data files. However, the buttons in the volume analysis toolbar are grayed ...
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LiDAR point cloud has no classfications [laspy], trying to classify and filter ground points
I have a .las file of data collected on a road, and I would like to get only the ground and points 'below' ground (potholes, other indentations, for example). However, when I load the data, it seems ...
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Point Cloud Processing Tools on MacOS
I am trying to access the native Point Cloud Processing tools, developed by Lutra Conslting and added to QGIS 3.32 (https://www.lutraconsulting.co.uk/blog/2023/05/30/pointcloud-qgis-processing/).
I ...
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Converting las to pnts for Cesium
I try to convert .las file to .pnts with tileset.json to be able to load it to Cesium viewer.
I convert las using py3dtiles. But despite different conversion methods I get my point cloud placed ...
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How to set the block size parameter for prepare a high point-density PointCloud dataset for training a model with ArcGIS Pro
I have a mobile point cloud dataset with following information:
point density: all returns 126.91 last only 117.75 (per square units)
Point spacing: all returns 0.09 last only 0.8 (in units)
For ...
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PDAL Translates Removes LAS Attributes
I am using PDAL (pdal 2.7.1 (git-version: Release)) "Translate" for assigning a CRS to my ALS pointcloud (format LAS; point format 6).
However, everything works fine, but some Attributes (...
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QGIS/PDAL: Selecting/tagging equally-spaced subset of point data
I have a set of high-density bathymetric point data with a maximum density of 30m. I now want to select or otherwise differentiate a subset of these points, evenly distributed throughout the set at an ...
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Doing simple manual classification of LAS using QGIS
Are there any basic tools for lidar classification in QGIS?
Id like to do simple function like reclassing single points, classing points inside a fence or above a line. something similar to the basic ...
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Loading laz point cloud in QGIS error: Invalid Data Source
I have problems opening a point cloud laz file in QGIS 3.34.0 Prizren on Win 10, PDAL version 2.5.5, Python version 3.9.5. I have older "good" laz-files that I have no trouble opening in ...
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QGIS: batch assigning CRS for point clouds
I got a bunch of LAZ compressed point cloud tiles (over 300). They don't have a projection assigned. I want to assign the correct projection (I know the files are in EPSG:25832) with the action "...
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Problem with SAGA batch processing
I have a series of point clouds in LAZ format that contain points identified as ground. I want to interpolate these points with the Multilevel B-Spline algorithm of Saga GIS and export the clouds to ...
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How can I find the Point Cloud Tools in QGIS 3.34 Mac Version?
I just downloaded the QGIS Latest Release Version 3.34 (Prizren) for Mac to try the new Point Cloud tools, that should be natively available according to this post: https://www.lutraconsulting.co.uk/...
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Add virtual pointcloud (vpc) from https location in QGIS
I'm trying to add a virtual point cloud file from a https-server in QGIS 3.35.0, but it seems that it only supports .copc.laz and .ept.json. I can open the vpc-file if I put it on a local directory. ...
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QGIS Elevation profile using Point Cloud and Polygon layer with Z value
I'm trying to use the Elevation profile tool with a point cloud and a polygon layer (with Z values). I wish to use the "capture curve" to view a section and I expected to see the polygon ...
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