Opacity component

For interactive objects:

• Using Ctrl + left click to rolate the object
• Using Shift + left click to move the object
• Using middle wheel to scale the object
• You can also try other VTKjs keyboard shortcuts

1. Original data, with opacity = 1

2. Using abritary opacity defined by user

2. Using opacity component X in cartesian coordinate system

3. Using opacity component Theta 1 in spherical coordinate system

3. Using opacity component -Theta in spherical coordinate system