Preview Mode (Viewer)

Preview Mode is used to browse opened LCC scenes. It supports basic roaming, viewing viewpoints and scene reports, and provides measurement capabilities for dimensions and areas.

Interface Overview

Preview Mode interface

#	Button	Description
1	Height Filter	Enable/disable Z-axis height filtering
2	Photo	Capture a screenshot of the current view
3	Mode Switch	First-person / Pivot / Digital human
4	Point Cloud Switch	Toggle between Point Cloud and Gaussian rendering
5	Return to Origin	Reset camera to starting position
6	Camera Speed	Adjust camera movement speed
7	Grid	Show/hide grid lines
8	Scanning Path	Show/hide scanning path
9	Environment Data	Toggle environment data display
10	Collision	Enable/disable collision

#	Button	Description
1	Viewpoint	View/jump to tour viewpoints
2	Annotation List	View/jump to annotations
3	Measurement	Temporary measurement (not saved)
4	Scene Report	Open Scene Report (hidden when no report exists)

Height Filter

Control model visibility by adjusting Z-axis height.

Click the Height Filter button to enter height filter mode
Drag the height adjustment sliders from the top/bottom
Click the Height Filter button again to exit (the current height filter state is recorded upon exit)

Photo

Capture a screenshot of the current view and save it as an image file.

Mode Switch

Three navigation modes are available:

First-person mode: Navigate the scene freely in first-person perspective
Pivot Mode: Orbit around a target point for observation
Digital human mode: Roam the scene as a digital character

Point Cloud Switch

Switch the model view to Point Cloud view for a more intuitive look at model structure, data density, or scan precision. You can still freely move and observe in all modes after switching.

Return to Origin

Quickly reset the camera position to the initial position near the scanner's starting location during data capture.

Camera Speed

Adjust camera movement speed for both roaming and pivot modes.

Adjustment methods:

Toolbar slider: Drag to adjust, range 1–100
Shortcut: Ctrl + mouse scroll wheel

Speed settings are global and persist across projects.

Grid

Show/hide the grid lines in the scene to assist with spatial positioning and alignment.

Scanning Path

Show/hide the scanning trajectory path from data capture.

Collision

Enable/disable collision. When enabled, the camera collides with objects in the scene during roaming, simulating a real walking experience.

Open the Viewpoint tool, click Tour, then click a thumbnail under Tour to quickly navigate to that viewpoint. Click to instantly switch to the preset view angle and arrive at the corresponding position.

Tour viewpoints

Roaming routes consist of multiple tour viewpoints pre-set by the editor, arranged in sequence for automatically browsing key areas of the scene.

Annotation List

Supports viewing annotation content (photos/videos/links/text, etc.) in the scene.

Click "Annotation" in the toolbar to open the annotation list
Hover over an annotation in the scene to view brief information
Click an annotation to view details
Supports showing/hiding individual annotations

Measurement

Supports viewing measurement data.

Scene Report

The Scene Report is used to view previously generated report content, providing a consolidated view of floor plans, viewpoints (screenshots with dimension/area information), etc. The button is hidden when no report exists.