Each control point sticker must meet the following criteria:
It is marked clearly with a cross (defines the exact location).
It has an ID that is unique within the mapping project.
It is made of robust material, such as intended for outdoor use.
NavVis provides a PDF template for control point stickers with a numbered label 000. The numbers can be changed by a printing supplier to sequential numbering (000, 001, 002, nnn…).
Note: Stickers should be printed on robust sticker material. You can also design their own stickers, as long as it meets the above criteria.
FAQs
What are control point stickers used for?
Control point stickers are used to define exact physical reference points in a mapping project. They help align and georeference the captured data accurately.
What criteria must each control point sticker meet?
Each sticker must:
Have a clearly marked cross to indicate the precise location.
Include a unique ID within the scope of the mapping project.
Be made of robust material, suitable for outdoor or high-use environments.
Can I use the control point sticker template provided by NavVis?
Yes. NavVis provides a PDF template with a default label ("000"). This template can be used by a printing service to create sequentially numbered stickers (e.g., 000, 001, 002, etc.).
What material should I print the stickers on?
Stickers should be printed on durable, outdoor-grade material to withstand various environmental conditions during scanning.
Can I design my own control point stickers?
Absolutely. You can design your own stickers, as long as they:
Have a clearly defined cross at the center.
Feature a unique project-specific ID.
Are printed on robust, high-quality material.
Why does the cross marking matter?
The cross defines the exact reference point for alignment. It must be clear and precise to ensure accurate data capture and processing.
What happens if IDs are reused or unclear?
Using non-unique or unclear IDs can result in data misalignment or errors during post-processing. Always verify ID uniqueness within the project.