This icon manages the window, facilitates renderer and computes a default view.
At this stage the display window is updated and the drawing is displayed, together with a control window. This control window facilitates space management.
It is possible to move around the space using scrollbars Phi and Theta. The button next to the digital value makes it possible to input in continuous mode, so it is possible to animate drawings by keeping the first button on the mouse pressed down and moving the cursor .
The Default button calculates a default view.
The Reference button displays the reference of the object displayed.
The Expert button is used to access the GPHIGS-GUI Expert widget.
The File button is used to generate the PHIGS code ( in C language ) corresponding to the defined view (file GUIViewSimpleXX.c)
The Mouse Control button is used to control movement in space with the mouse :
With the cursor in graphic window :
Mouse button 1 : X shift -> horizontal shift
Y shift-> vertical shift
Mouse button 2 : Y shift-> zoom forward/ back
Mouse button 3 : fly -> window center shift
<shift> button1 : same as button1 but only bounding box
<shift> button2 : same as button2 but only bounding box
The Ratio On / Ratio Off button specifies whether ratios are to be maintained or not when the view is changed.
The ZXY / XYZ / YZX button is used to specify the terms of reference describing the object to be displayed.
For expert users of PHIGS, all the view parameters may be accessed using the Expert widget, via the Expert button on the simple space management menu. This widget may also be thought of as a learning tool and used to understand the influence of PHIGS parameters on 3D viewing.
