3D graph

The Dewesoft 3D graph shows three-dimensional arrays or arrays with history. With this graph we can show FFT history, order tracking, rainflow count and even thermo vision data.


When you select 3D graph, following settings will appear on left and right part of the screen:

  • Control properties - For detailed information about Control properties: grouping, number of column, Add / Remove, transparency.
  • Drawing options - Selects which parameters will be shown on the graph
  • Channels selector


The inputs to the 3D graph could be:

  • block based FFT math
  • STFT math
  • block based CPB math
  • order tracking order and frequency based history
  • 3D rainflow counting
  • FLIR thermo vision picture (requires special plug-in).

Please also note that 3D view might not be available on computers which doesn’t have DirectX installed or the graphics card doesn’t support 3D features required from graph.


  • Auto scale will automatically scale z axis.
  • History count defined number of lines which will be shown on the display. Number of lines depends on the amount of memory reserved by the channel. Please note that increasing the value might result in very slow display since it requires lots of computing performance.
  • Z axis type can be set to either logarithmic or linear. Minimum and maximum of each scale can be defined by clicking on the min and max value like in any graph. That also works for the z scale which is on the left side of the display.
  • Z axis palette can be either in rainbow or grayscale color.
  • The Projection of the axis can be changed. First icon (x up, y right) is planar view and is mostly used when time-based data is shown like FFT history, for example. The second one (x left, y up) is useful when displaying matrix channels like rainflow count or thermo vision picture. Order tracking is in between, some users prefer first while other prefer the second option. There are also two three dimensional views.
  • Three-dimensional view can be rotated by pressing and holding the left mouse button to rotate it. Scrolling the mouse wheel or pressing Shift and left button will zoom in or out the display when moving the mouse up and down. Right-click and moving the mouse will rotate the graph around the display plane.


Moving the mouse button around on the graph will place the crosshair cursor on the nearest point on the graph.

When clicking on the point for a short period of time (long click will rotate the display), the crosshair will be held in place and the value of all three axis will be displayed near the cursor. All the cursors can be removed with right mouse click.


Additionally, we can change the cursor to calculate slope between x and y axis. First we click on the first point, then on the second point and the value on the left will show (in our case) speed of frequency change over the time.