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### The CAD-Command Window

Figure 31: CAD Command Window

In this window, you can select CAD-commands by clicking the corresponding icons and fields. The icons of the current commands are marked yellow, and the command itself is displayed in the command line of the graphic window.
The online help gives an extensive description of the CAD-commands, which are made from the syntactic elements action, Object, characterization and parameter.
The meaning of the remaining fields and icons is described hereafter.

1
  Backwards arrow-icon
  Cancels the last part of a command input. This icon corresponds to the -key on your keyboard.

2
  Flash-icon
  Cancels the last command input. This icon corresponds to the -key on your keyboard.

3
  Keyboard-icon
  Clicking this symbol generates three keyboard windows that are used with the help of mouse clicks; their use can be combined with the use of the keyboard. (see figure)
  Particularly the input of special characters is simplified.

  Figure 32: Keyboard windows

-
  Actions
  Actions are permanently displayed. To display a list of all possible actions, click the caption commands. If you then click the desired action, it is included in the displayed list of 8 actions. The least used action in that list is erased.

-
  Objects
  Display of all objects. Only one object can be active (activate by clicking!) at a time. The active object icon has a yellow background.
  Clicking the symbol objects displays a sub-menu. Using this sub-menu, you can decide what objects the CAD-commands should act upon.

-
  Characterizations
  The possible characterizations for the active object are listed here. Selection of a characterization provides a closer definition for the desired action.

-
  Parameter
  Possible parameters for the selected command are listed here. Parameters define how exactly an element is to be created. SISCAD-P knows three types of parameters: mandatory parameters, choice parameters and optional parameters.
  As the mandatory parameter must always be entered, and as also at least one of the choice parameters must also be entered, they are framed in red to distinguish them from the optional parameters.
  Activating a parameter often displays a menu that helps input. In any case, however, you are displayed the corresponding help text in the online help window if that is open.

Next: Basic Constructions and Up: Graphical User Interface Previous: The Main Menu