Marching-Cubes

A visualization of 3D scalar fields using slicing and Marching Cubes algorithm in OpenGL.

Data

The scalar field data used here was taken from http://sciviscontest-staging.ieeevis.org/2008/index.html

Each file was preprocessed to include one scalar field per file. The width, height and depth are predefined in the code according to the dataset description.

Usage

This project requires

• OpenGL 1.0
• GLUT

To use, clone this repository and run

make all
./p <path to file> <number of isosurfaces>

• Use the arrow keys to move up, down, left and right
• Use the '+' and '-' keys to zoom in and out

The plane equation of the slice is ax + by + cz + d = 0

• Use 'a' to decrease a and 'A' to increase a
• Use 'b' to decrease b and 'B' to increase b
• Use 'c' to decrease c and 'C' to increase c
• Use 'd' to decrease d and 'D' to increase d
• Use 'i' to enter a, b, c, d via standard input
• Use 'p' to auto rotate the slice/isosurfaces about x-axis
• Use 'm' to toggle between isosurfacing and slicing
• Use left mouse button to rotate in any direction
• Use ESC or 'q' to quit.

Results

10 isosurfaces

100 isosurfaces

2D slice