Hi, I am trying to read the point cloud in the Matlab. However, after exporting the point cloud into .ply format from PIX4D and open it in Matlab, the coordinate of the point cloud is shown in a different coordinate system. As can be seen below, the x,y and z values of the point cloud are actually …

Hello Frank, The offset of the project that some external software can import is generated after step 1. Initial Processing. The project_name_offset.xyz file is stored in the params folder under: project_name\1_initial\params\project_name_offset.xyz. This file contains the offset of the 3D Textured…

Hi Alice, Sorry to raise this question again. However, when I open the offset document with the notepad on Windows, I can only see 3 numbers, such as: 327272.000 6166088.000 409.000. Can you tell me how to use them? Because I’ve tried to add them to the x,y and z coordinates of the point cloud p…

Hi Frank, the outputs generated by Pix4D mapper always have a projected coordinate system. Adding the xyz offset will let you obtain the georeferenced mesh in the projected coordinate system defined as output coordinate system in your project. This means that if your input coordinates are in Latit…

Hi Alice, I am new to this conversation, and have a very limited understanding of how to convert the long decimal number coordinates with GIS software as you suggest. Can you give me more specific information on how to do this ? Thank you for your help ! -John

Hi John, I would also need more information to help you. What do you mean by “long decimal number coordinates”? What are you trying to obtain and why do you need to convert the coordinates? Are you also trying to import the point cloud (which format?) in some third-party software? Which is the …

Pix4D shows my XYZ coordinates with numbers like these: 327272.000 6166088.000 409.000. I want to convert that to an XYZ GPS coordinate to locate a surface’s exact position in 3rd party software. (I’d like to be able to do this with a point cloud as well). I would be importing into PVSyst and Go…

John, Regarding the export of the results into Google Earth, KML files can be generated in the desktop application for what concerns the orthomosaic. For more information please read How to generate the Google Maps Tiles and KML . If you need to import point cloud data in Web maps, you need other t…

Hi, I think I had the same issue with the OP but with the textured mesh. After importing the mesh in Unity, I noticed that the X axis was flipped. So adding the offset from the _offset.xyz file basically moved the corresponding projected coordinate twice the distance off in the X axis. After flippi…

Hello Ami, Sorry but I am not sure if I understand well. I would appreciate if you can describe your problem a bit more in detail and describe what you have done and what your problem is. What do you mean with “OP”? I understand that your mesh is flipped. Is it so? however, the DSM is not flipped…

OP is the Original Poster in forum lingo. Sorry, force of habit. Yes we are using a left handed coordinate system mostly because the project uses a component developed in Unity which uses a LHS so we conform to that for consistency in other components. Loading up the DSM in QGIS and I see it’s sho…

Point Cloud Coordinate

PIX4Dmapper PIX4Dmapper Questions/Troubleshooting

Daniel_Rico_Cordero July 12, 2019, 1:39pm 12

Hello Ami,

As it is explained in this post:

I hope this information helps you.

Regards.

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Point Cloud Coordinate

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