Point Cloud Visualizer

A simple and efficient helper tool for visualizing 3D reconstructed point clouds using Open3D. This repository provides an easy way to load and visualize PLY point cloud files generated by my 3D reconstruction engine. The PLY files can be found in this Google Drive folder

Visualizing outdoor_scene.ply from the Google Drive

Videos (So you don't have to run it!)

Outdoor Scene|Yatra Garden

Office Space

Getty

Indoor Art

Features

• Load and visualize PLY point cloud files
• Interactive 3D visualization with zoom, pan, and rotation controls
• Print point cloud statistics and point coordinates
• Simple, straightforward interface

Requirements

• Python 3.6 or higher
• Open3D library
• NumPy

Installation

1. Clone this repository:

git clone <repository-url>
cd point_cloud_visualizer

2. Install the required dependencies using one of the following methods:

Option 1: Using Conda (Recommended)

Create a conda environment from the provided environment.yml file:

conda env create -f environment.yml
conda activate pcd

Alternatively, you can manually install the dependencies:

conda install -c open3d-admin open3d
conda install numpy

Option 2: Using pip

pip install open3d numpy

Usage

1. Place your PLY point cloud file in the data/ directory, or update the file path in the script.

2. Edit point_cloud_visualizer.py and modify the point_cloud_path variable to point to your PLY file:

point_cloud_path = "data/your_point_cloud.ply"  # Change this to your file path

3. Run the visualization script:

python point_cloud_visualizer.py

4. The visualization window will open, displaying your point cloud. You can:
   • Rotate: Click and drag with the left mouse button
   • Pan: Click and drag with the middle mouse button (or Shift + left mouse button)
   • Zoom: Use the mouse wheel or right-click and drag up/down
   • Close: Press 'Q' or close the window

Example

The repository includes a sample point cloud file (data/sample_office_scene.ply) that you can use to test the visualizer.

Supported File Formats

Currently, the script supports PLY format. Open3D also supports other formats like:

• PLY
• PCD
• XYZ
• XYZN
• XYZRGB
• PTX
• PTS

To use other formats, simply change the file extension in the point_cloud_path variable.

Customization

You can customize the visualization by modifying the draw_geometries function parameters:

o3d.visualization.draw_geometries([pcd],
                                  zoom=0.3412,
                                  front=[0.4257, -0.2125, -0.8795],
                                  lookat=[2.6172, 2.0475, 1.532],
                                  up=[-0.0694, -0.9768, 0.2024])

License

See the LICENSE file for details.

Contributing

Feel free to submit issues or pull requests if you have suggestions for improvements!