I am working on Lidar VLP-16.   Can you advise me about the open source software that I could use for processing the lidar data and extract the object from the data?
100682
I will be working with LiDAR data soon and I am wondering what the alternatives to using Esri software to do this are, including open source solutions?
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Is there free OpenGL support libraries for C#? If so, which one do I use and where do I find sample projects?  Does C# provide classes for OpenGL?
61691
I have many ASCII files containing LiDAR xyz values. In order to create an ArcGIS LASD file, I need to convert these ASCII files into las files. I can do this with FME or LAStools, but I can't see a way in ArcGIS.   Does anyone know if this is possible in ArcGIS Desktop 10.3.x?
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I'm wondering if there's any addons or online libraries of materials I can download. I've found one called , but then discovered it was from 2008 and thought by now something like that might already be integrated into Blender.
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I'm a long-term user of ESRI software, and I now have a need to use free and open source software.   I've been reading about OpenLayers, PostgreSQL, PostGIS, GeoServer and MapServer but I can't find a good overview stating what each product does, why it's needed, and how they all fit together.  For example,  and  both list a bunch of products but don't give enough information for me to decide which ones are relevant.  In ArcGIS, I would use the following:   file geodatabase or ArcSDE geodatabase for data storage ArcMap desktop to edit the data and compile the map document ArcGIS Server to create web services ArcGIS Server JavaScript API to create the end-user maps from the web services   What are the equivalent FOSS products?
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Which OpenVG implementations exists?   What are pros and cons of each of them?  I'm looking for is a highly stable, fast rendering implementations that is still being actively maintained and developed.
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I was wondering if there is an option to convert LiDAR data (.las) to a  (DEM/DSM) format that ArcGIS 10.0 can read?
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I have a DEM built from LiDAR data and the file extension is .tif. When I open this file in ArcMap it seems to be a shaded relief DEM (see the screenshot below).  It happens I want to visualize the DEM colored by elevation. How should I proceed?
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I am looking for an easy to use light presentation software.  The main features I need are :   Light (on dependencies and resource consumption) Easy to use Align &amp; Distribute information on slide Use pictures Offline editor   The extra features I would like are:   On click animations .ppt Import/export Use templates/themes for easily unified presentation      looks like a presentation tool matching my needs. Unfortunately it is an online presentation editor and I am looking for an offline one.  I don't mind the software being proprietary and for-pay
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I have more than 2000 XYZ (only ground points) .txt files and I have to do Quality Control (QC).  Let's say I have file, which I converted to multipoint (or even singlepart feature). I have mean Z value for a file, but if most of the points are 20-40 metres, and two, three points per file are 70-80 metres (wrong Z values). How to catch these points and remove? On another hand, it could be that in another file 70-80 metres is common Z value and some points wrong Z value 120 metres. In another file 120 metres is common and correct.  How to find and remove points with wrong Z values in LIDAR data?  Standard deviation? Raster cells?
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I'm looking for an open source GIS that supports viewing and editing of  models.   So far, I've found a list of open source applications that support CityGML, but they all seem to be stand-alone applications, that don't integrate with common GIS systems: .  I would also be interested in your experience with CityGML in a GIS (also commercial) context.
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Anybody have any experience with software (preferably free, preferably open source) that will take an image of data plotted on cartesian coordinates (a standard, everyday plot) and extract the coordinates of the points plotted on the graph?  Essentially, this is a data-mining problem and a reverse data-visualization problem.
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I am trying to clip or filter lidar files (.las, .xyz) using a shapefile that contains multiple polygons.  Is there open source software that can do this spatial operation?  My .las files are enormous, and I should say that I am very new to DEM data and analysis so any help would be very welcome.
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How can I create a 3D shapefile containing line features or point features? I have to extract the elevations from a DEM and then export a shapefile containing 3D features. I'm currently working with QGIS 2.8.4
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An answer to   mentions the , a list of quantum algorithms. Several answers to  include links to different kinds of development kits. Likewise,  gathers a couple of good attempts at listing those.  The present question is related to the above, and yet it's not answered by the above resources.  Does a complete list of open quantum software projects exist?  Ideal answers would be: if it exists, the link to said list, and if it doesn't, a (well-formatted) as-exhaustive-as-possible compilation of open quantum software projects.  Related question:
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I'm looking for a qml file (or equivalent e.g. sld) to allow me to use QGIS to take OpenStreetMap data and produce paper maps. I'm re-asking this question (it was asked once or twice over a couple of years by other people) because I'm really surprised not to easily find such a thing already (I looked hard).   I have found  - which are good, but only style basic data like roads (and do so simply). I've successfully followed the  for getting OSM data to work with. I've carried out some basic style editing successfully. I realise I could create my own styles for this purpose - but this seems like a very big job. I want a visually pleasing map taking into account most of the data available on OSM (i.e. not just streets, but tracks, paths, rivers, woods, lakes, buildings and so on). I'd have thought that there would be other people out there already doing the same... It seems odd to have to re-invent the wheel when both OSM and QGIS are open source / open data projects. I feel like maybe I've just missed the obvious repository of OSM qml files which resides out there on the internet somewhere if you know where to look.  Additional notes in response to query below...  Ideally I'm looking for a Mapnik style rendering of the OSM data, but any equivalent properly developed and complete style would be good.  At the moment the objective is to use this data to produce paper mapping, but simple use of the mapping as base data on which other geographic data can be displayed also requires a decent rendering. At work I use Ordnance Survey data completely styled to produce a full and very detailed UK map (the point being that I didn't have to design this styling, it came with the data). I realise that other tools exist for paper mapping, but the same issues tend to arise at one stage or another... I'm more or less successful in making the tool work for me in really basic terms, but to get to something visually useful I end up back with me either needing to re-invent a complete rendering style from scratch (beyond my skill), or encountering such a complex set of requirements for database setups or whatever that the process crashes and burns before I get anywhere useful. With a few more years of GIS experience I'll maybe be a database, CartoCSS (or whatever else) wizz... but until then I'm prevented from using the amazing resource that OSM provides by this one barrier.  Update (July 2015): Please note that I'm still looking for information on this, and given that I've just been informed that the question has had 2500 views in the last year clearly others are too.
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Can someone help with an explanation and some references, in order to understand the nature of return pulses within a LiDAR system.