====== Graphics display functions (3D) ======

CGRAPH displays 3D objects in a view where the origin (0/0/0) always remains in the centre of the image. The origin therefore always remains part of the image; for example, you cannot zoom out beyond it to get to ‘the other side’ of the image. In addition, the z-axis is always oriented upwards in the default setting for a better overview. The //**display**// of graphics offers several options for modification.

{{screen_EN:scr_Grafik3D.png}}

^ Element ^ Description ^
| Tree view (red arrow)| In this view, to the left of the actual graphic display, you will find all the important parameters for the individual graphics as well as settings for [[Axes3d|colours and appearance of the coordinate system]]|
| Function bar (green arrows)| Contains buttons for enlarging and reducing the view, for printing, and an option to remove the display|
| Angle settings (magenta arrows)| Here you can adjust the rotation angles of the **//original image//** and the **//transformed image//**. In addition, an orange arrow indicates an **//advanced//** option for changing the angles|
| Status bar (yellow arrows)| Contains a function for automatic, animated rotation of the graphic.|
| Parameters (blue arrow))| Contains the option for changing a parameter. For information on how to adjust a parameter, see [[OperationParameters|Notes on changing the parameter in the graphic display]].|

===== Function bar =====

The function bar (green arrows) provides buttons for quickly changing the display, printing and closing the graphic as a whole.

^Symbol^Description^
|{{symbol:icon_LupePlus.png?64x64}}|Enlarges the section (zooms in) by a factor of 2|
|{{symbol:icon_LupeMinus.png?64x64}}|Reduces the section (zooms out) by a factor of 2|
|{{symbol:icon_LupeGleich.png?64x64}}|Restores the initial section by resetting the scale and rotation angle to the values specified in the [[3D graphics|settings]].|
|{{symbol:icon_Drucker.png?64x64}}|Opens the printer selection and prints the current view according to the general [[printing_and_exporting|settings]]. For some graphics, additional settings can be accessed by right-clicking on this icon.|
|{{symbol:icon_closeall.png?64x64}}|Closes the current tab and thus the graphic display and all associated default pages.|

//**Zooming in**// brings you closer to the centre. 
This also allows you to ‘dive into’ graphics and then visually ‘look around’ inside them.

The //**scaling**// can also be changed using the mouse wheel.

===== Changing the rotation angles =====

In the simplified view, CGRAPH provides two angles that can be adjusted:

^Angle^Description^
|Rotation|Sets the rotation angle around the z-axis. This rotation angle can also be changed automatically with the **Rotate around z-axis** switch|
|Tilt|Represents the tilt angle of the x-y plane to the z-axis. This allows the graphic to be viewed from above and below.|

===== Status bar =====

The status bar has three elements

^ Element ^ Description ^
| Left field | Button for starting and stopping automatic rotation to the right |
| Middle field | Slider for adjusting the speed of automatic rotation|
| Right field | Contains information or the option to change a parameter (blue arrow)|

===== Extended: Changing the rotation angle =====

The //**Extended**// button allows additional adjustment of the rotation angle and scaling.

{{screen_EN:scr_3DGraphicsAdvanced.png}}

^Angle^Description^
|Rotation around x-axis|Displays the rotation angle around the x-axis. This allows the graphic to be tilted against the x-axis alone.|
|Rotation around y-axis|Displays the rotation angle around the y-axis. This allows the graphic to be tilted against the y-axis alone.|
|Scaling x-axis|Sets the scaling for the x-axis alone. This allows objects to be displayed smaller or larger in the x-direction.|
|Scaling y-axis|Sets the scaling for the y-axis alone. This allows objects to be displayed smaller or larger in the y-direction.|
|Z-axis scaling|Sets the scaling for the z-axis alone. This allows objects to be displayed smaller or larger in the z-direction.|

Changing the rotation angles for the x- and y-axes inevitably means that the z-axis is no longer aligned vertically.

Clicking the **//Extended//** button again hides the panel with the additional settings.