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 User Guide
 Mouse Usage
 Function Mode
 Coordinate Key-in
 Current Plane
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 Display Control
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User Guide - Function Mode
Computer-Aided Design Software
(CAD System)

Computer-Aided Design Software

 G-System User Guide

3.  Function Mode (FM)


The system provides various functions through menu items and/or icons on the toolbars.  Some icons provide an immediate, one-click action, while others put the user in a certain command mode, called Function Mode (FM).  The system is always in one FM mode.  (When the system starts, it automatically enters into FM “Create Point”.)  The current FM is always displayed in the leftmost pane of the FM status bar at the bottom of the desktop  (See the desktop description).

Function Mode: Permanent vs. Temporary

There are two categories of FM commandsPermanent FM and Temporary FM. All major functions fall under the category of the permanent FM while some auxiliary functions such as viewing operations are placed under the temporary FM.  This is how these two FM modes operates: The user can jump to a temporary FM – while working on a permanent FM – in order to change the view or manipulate the current plane, for instance, and then can come back to the same permanent FM at the point where he left off to resume the task.

There are a few ways to come back to the original, permanent FM from a temporary FM:

1)     Hit ESC key - to resume

2)     Unclick the current temporary FM icon

3)     Hit the permanent FM icon  (This brings the user to the very beginning of this FM)

While in a permanent FM, the user can go to any temporary FM as he wishes.  The moment the last temporary FM is exited by 1) or 2) above, the user is returned to the original, permanent FM.


Prompt Message

To help the user navigate the user-interface, a prompt message is provided at every dialog state.  The prompt message is displayed next to the right of the FM command indicator on the FM command status bar.  The prompt message tells the user what kind of actions are possible at a given dialog state.

Possible User Actions (Events)

The following is the list of all actions supported by this CAD system that the user can possibly take.  Not all actions are meaningful at all dialog states and therefore only a subset of all possible actions are offered by each FM at a given time.  The user is guided by the prompt message as to which actions are allowed in a given circumstance. 

Possible Actions: SEL / IND / KEY / TOGGLE / REPEAT / ESC / DEL / END

1)     Select – Click an existing geometry with the left-mouse-button to issue a SELECT event.

2)     Indicate – Use the left-mouse-button to indicate a location on the current plane to issue an INDICATE event.

3)     Key-in – Use the keyboard to type in.  For a coordinate, key in x, y, z values separated by commas.

4)     Toggle – Hit the Space Bar to issue a TOGGLE event.

5)     Repeat – Hit the Tab key to issue a REPEAT event.

6)     Escape – Hit the Esc key to issue an ESCAPE event.

7)     Delete – Hit the Delete key to issue a DELETE event.

8)     End – Hit the End key to issue an END event.

A selection of submenu items is also considered to be an action, but just like any dialog box that may pop up,  any button is assumed to be clickable.


* Note that for Select and Indicate, the same left-button is used.  Usually this does not present any problem.   If an object is in the way and an Indicate results in an unintended Select, the user can force the Indicate by holding the SHIFT key when clicking the left-button.


System Feedback Message

To provide a confirmation to the user at the end of each action, a system feedback message is displayed in the rightmost pane in the FM command status bar at the bottom of the desktop.




CAD System Web Site - Computer Aided Design Software:  Copyright © 2010-2013 Makoto Honda. All Rights Reserved.  

Copyright © 2010-2013 Makoto Honda. All Rights Reserved.