Editing Custom Coordinates in the GCP Tool
Q: Can I directly edit custom coordinates in the GCP tool after uploading a CSV?
A: To update your coordinates, please re-upload the CSV file with the corrected values. The GCP tool requires a new file upload to verify and sync data across your project layers.
Q: Why do I need to re-upload the CSV instead of editing a single point?
A: Re-uploading the CSV ensures that the GCP tool applies the corrected values to the entire project workflow. This step maintains consistent alignment and accuracy for all processed maps.
Q: Are there different templates for GCP files depending on whether I use a custom grid?
A: Yes. The format of your GCP CSV file depends on your project settings:
For projects using a custom grid, ensure your file includes the specific custom coordinate fields.
For projects without a custom grid, use the standard template format.
Minimum Number of GCPs Required for Custom Coordinate CSV Upload
Q: Why did my custom coordinate CSV file fail to upload?
A: Uploads fail if the CSV file contains fewer than 4 Ground Control Points (GCPs). The system requires this minimum count to process custom coordinate data.
Q: What is the minimum number of GCPs required for a successful upload?
A: You must include a minimum of 4 GCPs for the GCP tool to process a custom coordinate CSV file correctly.
Q: Why do I need at least 4 GCPs?
A: The tool uses these 4 points to support the spatial transformations and alignment processes. This requirement ensures the highest level of accuracy in your georeferencing.
Q: What should I do if I only have 3 GCPs available?
A: Please capture and add at least one more GCP to meet the 4-point requirement for uploading. If you cannot capture additional points, contact the Support team to explore alternative options.
Further Reading
V2.2