It is as easy as attaching any reference file in MicroStation. Below are the steps and a couple tips on working with the data. Options include for Display, Snap, Locate, and Anchoring. I am trying to use point cloud to import a batch of XY data into microstation. And get a error message saying model is in 2d. How can I switch it to 3d so I can process this batch of coordinates? Does anyone have any recommendations hardware or otherwise on how to resolve this issue?
I am new to Microstation and I would like to draw building plans and elevations in Microstation from point cloud. That is really the best way to draw using point clouds.
Your email address will not be published. Notify me of follow-up comments by email. Notify me of new posts by email. You are using an outdated browser that may not be compatible with this website. For the best experience, please upgrade your browser. The Point Clouds dialog will appear. Modify any Settings needed then the OK button. The Specify new pod file dialog will appear.
Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I downloaded big point cloud file with extension. What is the simplest and easiest way to do it? Or, if you are looking for a tool, meshlab can read in plain XYZ data and save it to. Learn more.
Attaching Point Clouds in MicroStation V8i (SELECTseries)
How to convert point cloud. Ask Question. Asked 6 years, 8 months ago. Active 6 years, 8 months ago. Viewed 3k times. Jamil Jamil 10 10 silver badges 24 24 bronze badges.
Active Oldest Votes. If so, you can easily write a parser for it and save it as a. Oszkar Oszkar 1 1 gold badge 5 5 silver badges 20 20 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response….
Feedback on Q2 Community Roadmap. Technical site integration observational experiment live on Stack Overflow. Triage needs to be fixed urgently, and users need to be notified upon…. Dark Mode Beta - help us root out low-contrast and un-converted bits.CloudCompare forum Open-source point cloud editing software Skip to content. Quick links. PTS file format specifications Feel free to ask any question here. My problem is related to the 'intensity' column.
I can't find any document where the PTS format is explained, so I confused with the intensity values limits.
I've read in some forums that the intensity values take a range between tobut in other places I've read that the limits are to Also, here viewtopic. Or maybe each software Scene, Cyclone, etc.
First of all, which is the meaning of such values? Am I right? Another question is about the true limits. Anybody knows them? Anybody knows where is if exist the official PTS file format specifications document? Today what is stored in the 'intensity' field highly depends on the scanner manufacturer or the software - CloudCompare will simply save the active scalar field there.
Some expresses it in dB or a multiple of itbut others simply put what their sensor stores and I guess that it may even be the raw ADC component output, in which case only them know how to convert this to a 'physical' value!
When explained, I often hear it has something to do with how much energy is reflected from the object. We tried to put a meaning in intensity by measuring the signal strength of the echo and setting up the context with hardware parameters. This is why we decided for dB as a unit as it expresses the ratio of two figures.
For amplitude the reference value is the detection threshold. This is the lowest signal we can detect on an instrument.
All signals below that threshold are drowned in the environment noise. Everything above is measured and expressed as Amplitude. Reflectance is slightly different.
We know a white diffuse plate is the perfect target for a laser scanner. What we do is measure the echo amplitudes of such reference targets at the various distances. This is stored in the instrument. For an actual measurement we compare the measured amplitude to the amplitude of a white target at the same distance.Can you post more details about the current point-cloud format?
Perhaps mention what program generated the data, or post a sample of the data file. Jeremy The data was obtained by using tally surf in profilometer, used for 3d scanning of objects. It generated x,y,z coordinates which can be saved in. Finally what we need to do is to generate a 3d model from these coordinates. There are a couple of options that will work for you. The other option is to create a quadrilateral mesh from the points.
I have written apps to do both. See: link text. Based on those ouput formats, I'm guessing that you don't just want to export the point cloud data XYZ verticesbut want to first fit a surface to the points.
Some of the formats you listed don't support a file consisting of only vertices, but require some concept of surface triangles. If you'd like to do this step interactively, you could try using MeshLab. This open-source tool provides basic tools for manipulating point clouds and surfaces, and allows export to STL and DXF formats. A brief tutorial for creating a surface from point cloud data is shown here or here. More sophisticated tools exist for converting and manipulating mesh data, but these are generally proprietary and cost a significant amount of money.
If you want to do this programmatically, I suggest you use PCL. Here is a tutorial for creating meshes from point cloud data in PCL. Please start posting anonymously - your entry will be published after you log in or create a new account. Asked: First time here?
Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I've been searching all over and I didn't find it. I've seen that there are some files which line contains:. You can consider members of this group many other extensions like:.
The problem is that because of that lack of specification the contents of the file may vary according to the creator. The most logical thing would be that the first 3 columns always represent the X,Y,Z coordinates and the rest of the columns represent some scalar field associated to that point Maybe R,G,B values, or Nx,Ny,Nz, etc.
If you want to consider all the possibilities you would need to take in account not only a variable number of columns but also the ASCII character used for separating each column and the possible existence of 1 or more "header" lines at the beggining of the file. And a link to the source code. Learn more. Asked 3 years, 3 months ago. Active 3 years, 3 months ago. Viewed 18k times. Is there an official specification for the XYZ format for point clouds?
I've seen that there are some files which line contains: points coordinates, X Y Z for each point others contain coordinates plus colors, X Y Z R G B for each point there are even others that have an "Intensity" parameter. I need to consider all the possibilities. Consider to start from a file format I think many file format exist, as there is no official "text file" format but every program have its format: doc, txt, odt.
For example, I worked with PLY format. In this file, different properties can be defined at the beginning of the file. It is your choice to have or have not a color or an intensity or other things associated to every XYZ point. Elements different from points faces, edges can also be defined, with their properties. Active Oldest Votes. No, there is not an official specification about the. The most logical thing would be that the first 3 columns always represent the X,Y,Z coordinates and the rest of the columns represent some scalar field associated to that point Maybe R,G,B values, or Nx,Ny,Nz, etc If you want to consider all the possibilities you would need to take in account not only a variable number of columns but also the ASCII character used for separating each column and the possible existence of 1 or more "header" lines at the beggining of the file.There are hundreds of available file formats for 3D modelling.3D Laser Scanning - Meshing Point Clouds in Meshlab
This creates a headache where interoperability is concerned. Different scanners produce raw data in multiple formats. Different processing software is capable of accepting some of these file types, and each piece of software has different exporting capabilities. There are a few big players like Faro, Leica and Trimble that produce both software and hardware.
Others are designed for use with third-party tech. Autodesk, for example, produces no hardware but is a significant developer of point cloud software. On the other hand, most Leica hardware is only directly compatible with Leica software products. Users need to be careful when conducting and commissioning point cloud surveys to make sure that they receive and create files that will be compatible with their goals and purposes.
With a little bit of planning, however, these issues can be overcome. Most software systems are capable of receiving a large number of file formats and have flexible export options. There are a number of common file types that have wide interoperable utility. The ability to secure data using these formats will ensure your ability to use a number of different types of software for processing without having to resort to third-party file converters.
This article will break down the main file types and pull apart some of the true distinctions in point cloud file formats from proprietary copies. However, the characters are the focal point of the data. Binary systems store data directly in binary code.
E57 store data in both binary and ASCII, pulling many of the benefits of both together in a single file type. Each line of text within an ASCII file represents a laser return record as x, y, z spatial coordinates. Additional information such as colour and intensity can be included in some formats. The main benefit of ASCII files is a degree of universality in accessibility provided by the standardised text abstraction used to convey the data.
ASCII files, for example, can be opened in text editors. However, the day to day utility of this type of access is minimal, and using text to convey data comes with costs. The files are larger, contain less metadata and must be read line by line — decreasing read speeds. Binary file formats are more compact and can carry more information. It is possible to include file signatures, software information and metadata within each coordinate.
It also takes less time to process and visualise binary files because they can be spatially indexed, allowing them to be read in parts rather than sequentially. However, there are greater restrictions on how binary files can be accessed. OBJ: first developed by Wavefront technologies, the format has been adopted by a wide range of 3D graphics applications. It is a simple data format that only represents 3D geometry, normals, colour and texture. The goal was to add extensibility capabilities and the ability to store a greater number of physical elements.
The result is a file format capable of representing colour, transparency, surface normals, texture, coordinates and data confidence values. There are no unit standardisations for XYZ files.
Supported File Formats
Although there is wide compatibility across programs for this type of file, the lack of standardisation surrounding units and specifications makes it a fundamentally faulty method of data transfer unless additional information is supplied. E is a vendor-neutral file format for point cloud storage. It can also be used to store images and metadata produced by laser scanners and other 3D imaging systems.
It is compact and widely used.This is an overview of programs for processing 3D point clouds from appropriate photos or surveys with laser scanners. The programs create point clouds based on appropriate photos to process them to 3D modelse.
The programs can import data of laser scanners or point clouds to preprocess them for 3D modeling. Smart selection tools for fast manual classification, Training data generation for 3D Deep Learning. Offers on-demand Object Detection services. The programs can import data of laser scanners, images or point clouds and process them for 3D modeling.
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Imports scans from 3D laser scanner sensors. Combine as-built point cloud and 3D CAD design data for deviation analysis, clash detection and change management.
Register to plane, survey control points, cloud to cloud, CAD and spatial coordinates. SaaS platform to store, share, process, manage and visualize enormous LiDAR datasets, all within the same web-platform. Fully automated object detection, analysis and point cloud classification using only a web-browser.
Detecting and analyzing trees, curbs,roads, crash barriers, pole-like objects, paint markings, sound walls,road signs, vehicles, DSM,DTM.