< 2.3.8 Control Panel 2.3.9.1.2 Edit group >

2.3.9  Program states

The program can be basically in two main states: Edit state or Simulation state. If simulation is just not running, then that's the edit state. In these main two states, further sub states are, about which the section Sub states informs.

 

2.3.9.1  Edit state

In Edit state, you can change system parameters (see System), the parameters of Bodies and Groups, and the view (see Change view). All parameters are saved in the Gravity file of .grav extension (see Description of the grav file).

Table 8 shows what the parameters can be changed by or where they are available from:

 

Parameter Object
type

System
properties
pages:

S: System

V: Visuals

B: Bodies

O: Other

D: Description

 M: Menu

T: ToolBar

C: Control
    Panel

O: Mouse
S V B O D M T C O
System name system •                
Gravitational constant multiplicator system •             •  
Time unit system •             •  
Screen refresh time system •             •  
Simulation length system •             •  
Zoom system •         • • • •
Background character set system •                
Mouse pointer Character set system •                
Distance unit system •                
Mass unit system •                
Time unit system •                
Speed unit system •                
Time unit type system •             •  
Proximity system •             •  
Background color system •             •  
Selection color system •             •  
Information color system •             •  
Repeat system •         • • •  
Velocity vector visibility system   •       • • •  
Force vector visibility system   •       • • •  
Velocity vector visible magnitude system   •           • •
Force vector visible magnitude system   •           • •
Velocity vector color system   •           •  
Force vector color system   •           •  
Vectors trail system   •           •  
Trail visibility system   •       • • •  
Trail length system   •           •  
Trail color type system   •           •  
Trail color system   •           •  
Trail size system   •           •  
Body name visibility system   •       • • •  
Group name visibility system   •       • • •  
Body name color type system   •           •  
Group name color type system   •           •  
Body name color system   •           •  
Group name color system   •           •  
Mass center visibility system   •       • • •  
Mass center color type system   •           •  
Mass center color system   •           •  
Mass center trail system   •           •  
On-Screen Information system   •           •  
Center of the coordinate system system   •           •  
Stick visibility system       •   • • •  
Stick type system       •       •  
Body to stick system       •       • •
Group to stick system       •       • •
Warning visibility system       •   • • •  
Warning check time system       •       •  
Warning type system       •       •  
Warning events system       •       •  
Warning distance system       •       •  
Warning velocity system       •       •  
Logging visibility system       •       •  
Logging time system       •       •  
Logging type system       •       •  
Group name group       •       •  
Group color group       •       •  
Body name body     •            
Body position vector body     •           •
Body velocity vector body     •           •
Body mass body     •            
Body diameter body     •            
Body color body     •            
Body groups body     •            
System description system         • •     •
View system           • •   •

Table 8. Parameters

 

2.3.9.1.1  Edit system

System parameters are changed by using the Main menu, ToolBar, Control Panel, dialog window Create new system/System properties and the mouse. These are described in this section.

 

2.3.9.1.1.1  Change system parameters by using the dialog window

Pages in the dialog window Create new system/System properties change system parameters (too), except Bodies. System parameters are described in detail in the section System.

 

2.3.9.1.1.2  Change system parameters by using the menu and the toolbar

The system parameters influencing visibility are switched on/off by relevant items in the Main menu or ToolBar. If a command is switched on, then a tick appears next to the menu items, and the toolbar buttons get in pressed state.

 

2.3.9.1.1.3  Change system parameters by using the control panel

Major parameters and the ones making effect on visibility can be changed or switched on/off by using the Control Panel.

 

2.3.9.1.1.4  Change system parameters by using the mouse

By using the mouse, view (see Change view) of the System and Zoom can be changed.

Figure 14 shows the view (1) and zoom (2) buttons of the ToolBar.

 

Figure 14. ToolBar (portion)

 

This view can be changed only by using the mouse.

 

 

 

 

 

< 2.3.8 Control Panel 2.3.9.1.2 Edit group >