Navigation¶
Depending on whether you are viewing 2D, 3D or higher dimensional data, different options to navigate that data are available.
Exploring a Dataset¶
If the current dataset has more than 3 dimensions, the first dimension(s) will be interpreted as a list of 3D scans. These will be displayed in the thumb bar on the left and clicking a thumbnail will load the corresponding scan.
| Menu | Keyboard | Mouse |
| Explore / Next Scan | Alt + PgUp | Alt + Wheel Down |
| Explore / Previous Scan | Alt + PgDown | Alt + Wheel Up |
For 3D data, the first dimension will be interpreted as a list of slices.
| Menu | Keyboard | Mouse |
| Explore / Next Slice | PgUp | Wheel Down |
| Explore / Previous Slice | PgDown | Wheel Up |
Rotate & Flip¶
The current scan can be rotated around the three principal axes. The axes are always relative to the viewport and rotation will be done in pi/2 increments counter clockwise.
| Menu | Keyboard | Mouse |
| Explore / Rotate z | Strg + E | |
| Explore / Rotate x | Strg + R | |
| Explore / Rotate y | Strg + T | |
| Explore / Reset Scan | Strg + Z |
Additionally, the current scan can be flipped in the three principal axes. Again, axes are relative to the viewport.
| Menu | Keyboard | Mouse |
| Explore / Flip x (L-R) | Strg + D | |
| Explore / Flip y (U-D) | Strg + F | |
| Explore / Flip z (F-B) | Strg + G | |
| Explore / Reset Scan | Strg + Z |
Viewing a Slice¶
PySeus supports different ways to visualize data via display modes. The built-in mode Grayscale allows for visualization of either the amplitude or the phase part of data. Furthermore, a representation for kspace data is available which takes the root of the amplitude data for better contrast of the kspace data.
| Menu | Keyboard | Mouse |
| View / Gray - Amplitude - Image | F1 | |
| View / Gray - Phase | F2 | |
| View / Gray - Amplitude - Root(k-space) |
Zoom & Pan¶
By default, the entire image will be visible in the viewport. The image can be zoomed in several ways, and panned by holding RMB while moving the mouse.
| Menu | Keyboard | Mouse |
| View / Zoom in | + | Strg + Wheel up |
| View / Zoom out | - | Strg + Wheel down |
| View / Fit | # | |
| View / Reset | 0 |
Windowing¶
Windowing controls the translation of values to color. The following example are based on the default translation to grayscale:
- Lowering or raising the window results in a darker or lighter image respectively.
- Shrinking or widening the window results in higher or lower contrast respectively.
- Reseting the window will use the default options of covering all values present in the data.
| Menu | Keyboard | Mouse |
| View / Lower Window | Q | MMB + Right |
| View / Raise Window | W | MMB + Left |
| View / Shrink Window | A | MMB + Down |
| View / Widen Window | S | MMB + Up |
| View / Reset Window | D |