hellolzc / NPYViewer

A simple GUI tool that provides multiple ways to view .npy files containing 2D NumPy Arrays.

NPYViewer 1.23

A simple GUI tool that provides multiple ways to load and view the contents of .npy files containing 2D NumPy Arrays.

Plot 3-column 2D numpy arrays containing 3D Coordinates as 3D Point Clouds

Plot 2D numpy arrays as Grayscale Images

Visualize Heightmaps stored as 2D numpy arrays

Installation:

• Original development in Ubuntu 20.04 and Python 3.8.8
• Also tested on Windows 10 and Ubuntu 22.04
• pip3 install -r requirements.txt

Execution:

• python3 NPYViewer.py

Current Features:

• Open and view .npy files that contain 2D NumPy Arrays and Lists, as spreadsheets
• Convert .npy files to .csv format
• Convert .csv files to .npy format
• Convert .npy files to .mat format (compatible with MATLAB and Octave)
• Plot 2D numpy arrays as Grayscale Images
• Plot 2D numpy arrays containing 3D Coordinates as 3D Point Clouds
• Visualize Heightmaps stored as 2D numpy arrays
• GUI developed using PyQT5

TODO:

• Add/Remove Rows & Columns
• Copy/Paste Rows & Columns
• Data search and filtering
• Modify content datatypes
• Handle data with more than 2 dimensions
• Visualize adjacency matrices as graphs

Changes since last version:

• Convert .npy files to .mat format (compatible with MATLAB and Octave)
• Open window remembers the path of the last opened file between consecutive executions
• Partial support for arrays with custom dtypes