Scene View Orientation

The options in the Scene View Orientation panel, shown below, let you view and adjust the angle of rotation of a selected 2D or 3D view and to adjust the position of the camera. Additional options for 2D views let you navigate to the different slices contained in volumetric image data.

Scene View Orientation panel

Scene View Orientation panel

The options on the Yaw/Pitch/Roll tab let you view and adjust the rotation of the current scene view, as well as to view and adjust the center position of the camera.

View rotations are represented by the so-called Euler angles named Yaw, Pitch, and Roll, which represent rotations around the center of the selected view. Rotation around the central vertical (normal) axis is called Yaw, rotation around the central horizontal (lateral) axis is called Pitch, and rotation around the central longitudinal axis is called Roll. Each of the Euler angles is represented by a single value and with the combination of all three of them, any rotation vector in 3D can be calculated. Refer to en.wikipedia.org/wiki/euler-angles for more information about the geometrical definition of Euler angles and the intrinsic rotations used in Dragonfly.

Euler angles

Euler angles

Do the following to adjust the view rotation:

  • Select the required 2D or 3D view.
  • Enter a new value(s) in the Yaw, Pitch, and/or Roll edit box(es) and then click the Apply button.

Do the following to adjust the position of the camera:

  • Select the required 2D or 3D view.
  • Enter new value(s) for the X, Y, and/or Z position(s) in the Center edit box(es) and then click the Apply button.

    Note The center values are provided in the world coordinate system and the default unit

Refer to the topic Creating Oblique Views for information about creating oblique views.

The options on the Oriented plane tab let you view and adjust the orientation of the current plane, as well as to view and adjust the center of the camera.

Oriented plane settings
  Description

a, b, c, d

Describes the plane orientation of the current view by an equation of the form ax + by + cz + d = 0.

Note Refer to https://en.wikipedia.org/wiki/Plane_(geometry) and http://mathworld.wolfram.com/Plane.html for more information about plane orientations.

Up

Indicates the Up direction of the X, Y, and Z axes in the current view.

Center

Indicates the center of the camera within the selected view in the world coordinate system and default unit.

Do the following to adjust the position of the camera:

  • Select the required 2D or 3D view.
  • Enter new value(s) for the X, Y, and/or Z position(s) in the Center edit box(es) and then click the Apply button.

You can navigate to any slice in the selected dataset on the Slice tab, which provides the current slice position.

  1. Select the required 2D view.
  2. Make sure that the required dataset, region of interest, or multi-ROI is selected in the Data Properties and Settings panel.
  3. Enter a new slice number in the edit box and then click the Apply button.