Floating Point Cloud¶
Enview Explore™ has different map options. 3D Smooth allows the user to navigate in 3D, but keeps the ground surface at sea level regardless of the presence of high topography. Enview Explore™ also has the option for 3D Terrain which provides a global 3D terrain surface.
Click Map to open the base map options and then select 3D Terrain.
We can now see that the point cloud is no longer floating, and is displaying correctly against the ground surface.
Please note: If there is still an offset, it’s possible that the vertical projection is either missing or incorrect. To update this, visit the Update your Dataset window and input the correct vertical projection for your uploaded dataset. If you are viewing an Enview classified dataset, the Classify Points action will need to be rerun.
Unexpected Results in Model Generation¶
If you encounter unexpected results or bugs during the Generate Models action using an Enview Classified dataset, it may be necessary to rerun the Classify Points action. Ensure that the input dataset was ingested and/or classified in the most recent version of Explore. This is generally considered a good practice in order to take advantage of new capabilities added in later releases.
Contact Enview Customer Support if you experience issues or have questions regarding the need to reclassify.
The table below lists all the error codes that may appear when using Enview Explore™. Resolutions are numbered, and detailed troubleshooting instructions are provided.
|An error occurred||5||An error of unknown type occurred.|
|Could not clear intermediate workspace||5||System could not clear temporary storage.|
|Could not determine horizontal srid||3||System could not derive SRID/EPSG when the user did not provide an SRID/EPSG code.|
|Could not determine SRID||3||The spatial reference identifier (SRID) could not be determined from the uploaded file.|
|Could not stage files||1||System could not copy files from upload location to temporary storage.|
|Could not start ingest||1||System failed to start ingest process execution.|
|Failed to classify points||2||The point classification step failed.|
|Ingest timed out||4||Ingest didn’t complete within a given time window (currently 3 hours).|
|Invalid horizontal srid provided||3||System could not locate SRID/EPSG provided in Enview reference lookup.|
|Unsupported artifact type||1||The user uploaded data that Enview doesn’t support (not a point cloud).|
|Upload timed out||4||Files didn’t upload within a given time window (currently 3 hours).|
Data upload errors can occur for the following reasons:
- incorrect file format
- corrupt data
- incomplete / failed upload
To begin, first ensure that the file format selected is supported by Enview Explore™. If the upload completes but there are errors, go to the Dataset Overview page and reingest the data with the correct SRID. If this initial step fails, the upload was not completed to begin with, or the SRID is already correct, please Delete the dataset and reupload the files.
How to Reingest your Dataset¶
- Visit the Datasets page and click on the name of your dataset to be redirected to the Dataset Overview.
- Select Edit from the About this dataset panel.
- In the Update your Dataset window, input the correct Horizontal Projection (SRID) using manual input or the provided drop-down menu.
- Click Save and the reingest will automatically begin, identifiable by the spinning circle under the Status column.
For more detailed instructions, you can check out the Datasets page in our Product Manual.
Data processing errors can be triggered by a variety of issues such as corrupt data, errors in metadata, and more. The first troubleshooting step when encountering this error is to run the action again. If that doesn’t work, try reuploading the source dataset in case there were upload issues, then rerun the action.
The Spatial Reference Identifier (SRID) either could not be determined from the file, is not in Enview’s lookup table, or is incorrect; this could also be due to errors in the metadata. To manually update it, refer to the How to Reingest your Dataset instructions listed under Data Upload Errors.
If you need help determining the SRID of your dataset, a good resource to determine the SRID is lasinfo by rapidlasso.
How To Determine SRID of .las/.laz Data Using LAStools¶
Step 1: Download LAStools here.
Step 2: Uncompress LAStools file.
Step 3: Locate the lasinfo.exe executable in the bin folder from LAStools.
Step 4: Open the command prompt terminal at the location of the lasinfo executable tool by typing “cmd” and pressing Enter in the folder path bar.
Step 5: In the command prompt, first drag the lasinfo.exe file into the terminal, leave a space, and then drag the .las/.laz file into the terminal. Press Enter. The metadata information will then populate in the terminal.
Step 6: You can find the SRID under key 3072. An example screenshot is below, where the value is 2953 (the EPSG code) under key 3072. The vertical datum is under key 4096, if your .las/.laz data includes in the information. The vertical datum in the sample below under key 4096 is 1127.
Step 7 (Optional): Outputting a lasinfo Text File
Please note: For the following sections, if you have .las files please use the provided commands. If you have .laz files, please replace the text “las” with “laz”.
To create a text file output of the lasinfo results, copy and paste the lasinfo.exe file to the location of your .las/.laz of interest, open the command prompt terminal and type the following command into command prompt terminal:
lasinfo -i your_filename.las -odix _info -otxt
There are other terminal commands and combinations that are possible with lasinfo to obtain metadata. To determine the SRID, the above commands are sufficient. If you would like to learn more about lasinfo commands and how to use the GUI after double-clicking the lasinfo.exe file, please check out the official LAStools resources below.
The official webpage for lasinfo is here.
The official README file for lasinfo is here.
Timeout errors occur when the upload/ingest fails to complete within a given time window, which is currently 3 hours. If this error appears before the 3 hour mark, the connection was likely interrupted and unable to restart. Ensure that you have a stable internet connection before rerunning the process.
The cause of the error is undetermined. Try rerunning the process and ensure the correct Spatial Reference Identifier (SRID) is both used and supported. To manually update the SRID, refer to the How to Reingest your Dataset instructions listed under Data Upload Errors.
Those who would like to check if their data appears to have any errors in other software, a good open source tool is QGIS. If there are errors present in a tool such as QGIS, then it is very possible that the error exists within the file(s) themselves. However, you are always welcome to reach out to your Enview Contact or email us at email@example.com for additional help.