Data Window

Data window is used for 2D data presentation. It is the main widget used for working with Gwyddion. The data are presented to user as a field of false colors corresponding to heights. Color axis that represents mapping the colors to real height values is also part of the data window.

Color palette used to represent height data can be changed by clicking on the color axis with right mouse button (i. e. invoking context menu) and selecting appropriate palette from the list of palettes. Mostly used palettes are available directly in the context menu; however you can reach much more of the possible palettes using the More... menu entry. Moreover, you can use color gradients editor to create your own palettes available at EditColor Gradients....

There is a context menu available also for the data area. This menu consist of basic data and presentation operations. To reach all the possible operations use Data process... menu at the Gwyddion main window, or use some of the tools available at the Tools set of buttons at the Gwyddion main window.

The arrow in the upper left corner brings the aspect ratio switch menu. The data can be displayed either with pixels mapped with 1:1 aspect ratio to screen pixels (Pixelwise Square), or with physical dimensions mapped 1:1 onto the screen (Physically Square). For instance a sample of size 1×1 μm scanned with reduced slow axis resolution and having therefore 512×128 pixels, can be displayed either in 512×128 or 512×512 window.

Figure 3.4.  Data window with all three available context menus shown.

Data window with all three available context menus shown.