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HOW TO BUILD LOD2 3D BUILDING DATA USING LIDAR POINT CLOUD DATA IN ARCGIS PRO 

GEO 2004
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This video is about how to generate Level of Details 2/LoD 2 3D Building data on landscape level using LIDAR data. This workflow is very useful for the development of cities model or digital twin model.
some auxiliary info:
1. The workflow demonstrated in this video uses ready-to-use LIDAR point cloud data, in that the
data has already undergone all of the LIDAR pre-processing steps up to point cloud classification. If
you have raw LIDAR or pre-classified LIDAR point clouds, I suggest you do the pre-processing and
point cloud classification first; there are many software programs that can do that. I also made one
video about it; just check my Agisoft Metashape Playlist.
2. I am using ready-to-use LIDAR data from the USGS LIDAR 3DEP Portal at this URL:
apps.nationalm... the data is available for free and no registration is
needed. Highly recommended data source for learning purposes.
3. I am using ArcGIS Pro with an Advanced License and the 3D Analyst Extension for ArcGIS Pro; if
you don't have these prerequisites, I am afraid you wouldn't be able to practice the workflow I
demonstrated in this video.
music : bensound.com
#arcgispro #lidar #3dbuilding

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7 апр 2023

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Комментарии : 7   
@GEO2004
@GEO2004 Год назад
If you want or needs to learn LoD 0 and LoD 1 before move up to LoD 2, here is the video tutorial : ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8Wtm_L4iLDE.html
@aminabdo9760
@aminabdo9760 Год назад
Amazing video. After archiving same results in global mapper, I will attempt same in ArcGIS pro. Thanks for the video
@GEO2004
@GEO2004 Год назад
Wow, I know global mapper can also generate up to the building footprint and 3d masses, however can it also handles the texturing? I would also like to try if this is possible 😁
@aminabdo9760
@aminabdo9760 Год назад
@@GEO2004 SketchUp is very good in texturing
@GEO2004
@GEO2004 Год назад
Yep, know that well also
@rybaros
@rybaros Год назад
Nice one! This is what I was looking for last days. Now there is a task and it is how to do as best results as we can. If you can do video, how to add real textures to this LoD2 building by photogrametry/satelite images, it would be awesome help.
@GEO2004
@GEO2004 Год назад
that is the ultimate stuff in this topic, I also still learning how to achieve this. As far I know, there are three ways with their own tradeoffs, 1. The easiest one is building the real textures and incorporate them into 3D representation using triangulated vector network or TIN, directly in the photogrammetric processing workflow. This model is called mesh and as far I know has its own limitation such as limited attributes data support and the result usually quite wobbly in higher scale/zoom level. 2. Manually build the 3D masses object ( in obj,format or other compatible format) and put the texture into every part of the building, like people usually do in Sketchup, Revit, or any other architectural 3D BIM workflow/software. This method is precise and accurate, on the other hand, this approach is quite tedious and resource demanding if we want to build landscape or city level model. The data also would be huge. 3. Multipatch model texturing using CGA/procedural script writing. ESRI City Engine is one of the few softwares that has this ability. By using CGA, mass texturing of multipatch model can be done in semi automatic way, however, if we want the model to be super precise and really mimicking the real world, we will find the difficulties like point 2. A lot of coding, a lot of design and prototyping, no easy task in conclusion,
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