SoundPLAN USGS Lazer / Lidar Data Import скачать в хорошем качестве

SoundPLAN USGS Lazer / Lidar Data Import

This video discusses the import of topography data from USGS into the SoundPLAN v8.2 software. USGS offers various information on the USGS website including Lidar data. Please be aware that some of the section may change over time as the USGS online applications or the SoundPLAN may change. Step 1 USGS website (see link below). Find your project location, find the right data set and downloading the Lidar data. Step 2 Importing the Lidar data into the SoundPLAN Geo-Database. To be successful make sure the coordinate and reference system is correct. Important Pre-requisit in regards SoundPLAN Modules: File Import - Preprocessing of elevation data is part of the Noise Mapping Toolbox File Import - Elevation point import is available to all users as it is part of the Base Module Any comments - please let me know - thank you. For more information: www.soundplan.eu / www.navcon.com Time schedule 0:00 Intro 1:00 USGS (https://apps.nationalmap.gov/) 1:10 The National Map (TNM) 1:30 Select Lidar Point cloud 1:40 Search Project by City, Address 2:00 Search for Lidar Data Files – Lidar Cloud Points, Las/Laz data 3:00 Download single file (you can download multiple files) 3:30 Search Vendor Metadata for coordinate and reference system or EPSG codes 4:15 Make sure that you have UTM selected (in the video it still downloaded the data in feet – not sure why) 4:30 Download – Copy the download into the SoundPLAN project folder – the file can be anywhere on your network – just remember where you copy the file. 5:00 Setup SoundPLAN in regards to coordinate and reference system, 7:00 Discussion on finding reference in the LAZ file, look for coordinate and reference system and units. If you find multiple EPSG references try them out with the EPSG codes supported in SoundPLAN. EPSG code is a combination of coordinate, reference system, off set and in some cases a zone reference. 8:00 Setup SoundPLAN coordinate and reference system 9:00 SoundPLAN Global setup – select the coordinate and reference system available for your project 10:20 SoundPLAN Geo-Database – File – Import – Elevation processing one or more Laz files. 11:20 Get information from Laz file 12:30 Start Filtering of point cloud…. Starting at ~ 2,800,000 point… 98% of points will be filtered 13:30 Save elevation points into Geo-file 15:00 Auto-scale view and check imported data - scale / units (Bridge over freeway shows 200 m distance… indicates that the reference is feet not meters) 15:50 Coordinate Operation x, y, z *0.3048 - feet to meter conversion 17:00 Save Data file and Situation 17:10 Open Street Map – Save Aerial View (check if aerial and coordinate system match) requires Cartography 18:00 Import Open Street Map data (Building, Roads) – requires Cartography and GIS Module 18:50 Computer Digital Ground Model - DGM using Spot Elevation 19: 10 3D Map – roads and building have not elevation information 19:30 Select buildings and drop on the ground Edit – Drop object on the ground 20:00 Finish 3D View