See what changed, from the same viewpoint.
See what changed at a site by viewing dated visits from the same camera. Comparing site visits in 3D means relating dated reconstructions through an accepted transform into a shared Site frame, so the same camera can inspect the site across dates.

A shared camera needs a shared frame.

Each Visit keeps its date and source-frame identity. TRACE queues a measured alignment candidate against the Site reference after placement; a person reviews the candidate before it becomes canonical.
Once a visit is aligned, Compare opens it beside any other visit, from the same camera.
Keep each work order at its spot and date.
For site documentation, an operator can pin a Ticket in an accepted Record and retain its Visit, clip time and linked Findings. Same-Visit checks prevent a pin and clip from silently referring to different dates.
For construction progress, film work before it is covered up, then compare a later visit from the same view to check what went in.
Automatic change detection, automatic alignment acceptance and agents verifying completed work are Planned.
Questions, answered.
Is every new Visit automatically aligned?
No. Measured candidates are queued against the Site reference, and a person reviews acceptance. Universal automatic acceptance is Planned.
Can two unaligned Records be treated as a measured comparison?
No. Without an accepted relationship between their frames, a visual resemblance is not a verified spatial correspondence.
Measurement receiptCapabilities JSONFor agents
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