# Quick Access Toolbar

## 1 Point Cloud Rendering

Point cloud rendering supports coloring by **RGB, intensity, elevation, time, file, and category**.

For **intensity, elevation, and time** rendering modes, users can:

* Choose different color ramps for better visualization of geometry or intensity details.
* Drag the color ramp to adjust the display range.
* Toggle **Show/Hide Data Outside Range** to hide points outside the selected range.
* Click **Restore** to reset the color ramp to default settings.

### True Color

Displays point cloud with real-world RGB colors.

### Intensity

Displays point cloud based on point intensity values.

### Elevation

Displays point cloud by elevation.

### Time

Displays points based on acquisition time. Users can change the color ramp for visualization.

## 2 Profile Tool

### Vertical Section

### Horizonal Section

## 3 View Tool

### Full Screen

Display the point cloud in full screen; press **Esc** to exit.

### Fly View

Fly-through view provides a **first-person perspective** for browsing, mainly used for 3DGS models.

**Operation Steps:**

1. Click the **First-Person View** button on the toolbar.
2. Enter fly-through mode starting at the first acquisition point.
3. In fly-through mode, use the following keyboard and mouse controls for free navigation:

| Operation                | Function                                 |
| ------------------------ | ---------------------------------------- |
| W / S / A / D            | Move Forward / Backward / Left / Right   |
| Q / E                    | Increase / Decrease viewing height       |
| Z / C                    | Rotate view Left / Right                 |
| Shift                    | Accelerate movement                      |
| Space                    | Return to spawn point (initial position) |
| Mouse Left Drag          | Rotate view                              |
| Mouse Right Click        | Lock vertical rotation                   |
| Mouse Wheel              | Move forward/backward                    |
| Hold Middle Mouse & move | Pan left/right                           |

### EDL Rendering

**EDL (Eye-Dome Lighting) rendering** enhances point cloud visualization by outlining edges, making local details and contours clearer.

### Model Bottom

Click the **Show Model Behind** button to toggle between:

* **Show Behind** — displays objects behind the current model
* **Hide Behind** — hides objects behind the current model

### Basic View

Basic views include:

* Top View
* Bottom View
* Front View
* Back View
* Left View
* Right View

<figure><img src="/files/Ef4xdBwgcApHBvPxVFyN" alt=""><figcaption></figcaption></figure>

*Figure 33 Basic Views*

## 4 Point Adjustment

### Point Size

Adjust the display size of points in the view to improve visibility of details.

### Density

Adjust the density of displayed points to show or hide geometric details.

### Transparency

Adjust point cloud transparency for better visualization of overlapping structures.


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