An observation is a finding you record on your project: a crack, a rusted fixing, a measurement you need in the report. You can place observations directly on the 3D model.
Three tools sit on the left of the toolbar at the bottom of the 3D view:
| Tool | Use it to | How it works |
| Add Tag | Mark a single point | One click |
| Add Line | Measure a distance, or trace a path | Click each point, then finish |
| Add Area | Outline a region and measure its area | Click each corner, then finish |
Its details panel opens, ready for you to fill in the class, severity and any other fields your team uses. See Filling in an observation's details.
It is a draft observation until you click Add to project. Its name shows in italics in the observation list until then, and starting another one discards it. See Saving your observations.
Both tools work the same way. You place several points, then tell the portal you are done.
An area needs at least three points. If you finish with fewer, the drawing is simply discarded.
Tip: the cursor hint is the fastest way to know where you are in a drawing. If it disappears, your cursor is not over the model. Move back onto the surface and it returns.
Tools switch themselves off after you create one observation. If you want to place several, click the tool again for each one.
To cancel without creating anything:
Both cancel any half-finished drawing too.
The three tools stay visible but greyed when you cannot use them. The usual reasons, most common first:
| Reason | What to do |
| You are in Smart Detections or Reports | Switch back to Inspect using the mode picker in the header. Observations can only be drawn in Inspect. |
| Edit box is on in the clipping panel | Turn it off. Enable clipping does not block drawing; only Edit box does. |
| You do not have permission to create observations | Ask a project or workspace administrator. Viewers can see observations but not create them. |
| The model is still loading | Wait for it to finish. |