Lossless full update mapping
This article details the complete operation process for lossless full update mapping of single and multiple maps, including task creation, data upload, mapping operations, and result viewing, helping users complete scene updates while keeping the original coordinate system unchanged.
Single-image lossless update mapping
Log in to the EasyAR Developer Center, select Mega Block -> Block mapping from the left menu bar, choose the corresponding project address, and click the Manage button to enter the mapping task interface.

Create a single-image lossless update task and upload data
Select the single-image task that needs lossless updating and click the
Lossless point cloud upgradebutton.

Fill in the following information in the pop-up window:

- Task name: Enter the name of this lossless full update task.
- Data preparation: Refer to Regular single-image task data preparation.
- Data location: Select
Upload new data. - Collection data: Click
Select, choose the main directory folder of the data, and clickUpload.

- EIF data: Optional. Click the
Selectbutton to upload the corresponding EIF data file. Supplemental upload of EIF data is supported after mapping starts. - Upload region: Select the nearest region based on the upload operator's location.
- Mapping version: The latest version V9 is used by default.
- Data format: The latest version 3-a is recommended.
After confirming all the information is correct, click the
Confirm uploadbutton to submit the task. The upload progress and status will be displayed in the list.
During the data upload process, keep the computer powered on and the network connection stable. Do not close the browser, refresh the page, or click other menus, otherwise the upload will be interrupted and need to be restarted.
Start mapping
After the upload is completed, the task will automatically enter the Under review state, as shown in the figure below.

Once approved, the task will automatically enter the mapping process, with the status displayed as In queue or Generating, as shown in the figure below. Please wait patiently for the mapping to complete.

Confirm the mapping result
After the task enters the mapping process, you can determine whether the mapping task is completed by checking the task status. When the status shows task completed or generation failed, it means the mapping task has ended.

Mapping successful
When the task status shows Task completed, it means the mapping is successful and the mapping results have been generated. At this point, you can further check the mapping results to confirm whether they meet the expected requirements.
View mapping results:
Mapping failed
When the task status shows Generation failed, it means the mapping has failed. It is recommended to troubleshoot the issue in the following ways:
- View the mapping report: View the mapping report and find solutions based on the report information.
- Refer to troubleshooting: Check the Mapping failure troubleshooting guide for solutions to common problems.
- Contact technical support: If none of the above methods resolve the issue, contact EasyAR staff and provide the
JobIDfrom the mapping report for quick problem identification.
Multi-image lossless update mapping
Log in to the EasyAR Developer Center, select Mega Block -> Block mapping from the left menu bar, choose the corresponding project address, and click the Manage button to enter the mapping task interface.

Create a multi-image lossless update task
Select the multi-image task that requires lossless updates and click the
Lossless point cloud upgradebutton.
In the pop-up dialog, enter the task name, select the mapping version and data format (it is recommended to use the latest version), and click
Confirm and addto create a multi-image point cloud lossless update task.
Add sub-mapping
After creating a multi-map lossless update task, you need to add a sub-mapping task for each independent collection area.
Click
Multi-map fusion managementto enter the corresponding multi-map fusion management interface.
Click
Add sub-mapping, enter the task name, and clickConfirmto create a sub-map. Please note that each independent collection area requires a separate sub-mapping task.
Data preparation
Before uploading the data, ensure that the collected spatial data meets the requirements and is organized and stored according to the specifications. The following sections detail the data collection equipment and the naming, storage, and structure specifications for data files.
- Data collection and export
- Data folder naming
- Data storage location
- Data file structure specifications
- Data file naming specifications
Upload data
The rules for uploading data are the same as for single-image tasks. Please upload the data under the corresponding task. For details on uploading data, refer to Single-image task upload data.
Upload data location instructions: Choose to upload via Local new data or Alibaba Cloud Drive link.

Start multi-image lossless update mapping
The operation process for multi-image lossless update mapping is the same as multi-image fusion mapping. For specific steps, please refer to the Start large-space mapping section.
Confirm the mapping result
When the task enters the mapping process, you can determine whether the mapping task is completed by checking the task status. When the multi-image lossless update task status shows task completed, mapping result not ideal, or generation failed, it indicates that the mapping task has ended.

Mapping successful
When the task status shows Task completed or Mapping result not ideal, it means the mapping is successful and the mapping result has been generated. After multi-map mapping is completed, the results will be displayed in the multi-map fusion management interface.
Mapping result description:
Task completed: Mapping is completed and fusion is successful, resulting in a complete Mega Block.
Mapping result not ideal: Mapping is completed but fusion is poor, resulting in multiple Mega Blocks.

When the status
Mapping result not idealappears, it is recommended to perform the following checks and verifications:- Collection route compliance: Ensure the collection route complies with the specifications and meets the overlap requirements between sub-maps. (Reference: Collection specifications)
- File upload completeness: Ensure all files have been uploaded without omission. (Reference: Preview uploaded files)
- Collection area coverage: Ensure the collection area covers all requirements without missed areas. (Reference: Review collection route)
- Manual association accuracy: If manual association mapping was performed, ensure the sub-map relationships are specified accurately. (Reference: Manual association mapping)
If any of the above issues are found, you can correct them and recreate the task. If all checks are confirmed correct, please contact us for assistance.
View mapping results:
Mapping failed
When the task status shows Generation failed, it means the mapping has failed. It is recommended to troubleshoot the issue in the following ways:
- Check the mapping report: View the mapping report and find solutions based on the report information.
- Refer to troubleshooting: Check the Mapping failure troubleshooting guide for solutions to common problems.
- Contact technical support: If none of the above methods resolve the issue, contact EasyAR staff and provide the
JobIDfrom the mapping report for quick problem identification.