The philosophy behind Cabri II Plus is to allow the maximum interaction (mouse, keyboard, etc.) between the user and the software, and, in each case, to ensure the user is not surprised by the response of the software, firstly by respecting the standard responses of applications and operating systems, secondly by plausible mathematical behavior.
A Cabri II Plus document comprises a free-form figure on a single sheet of virtual paper, 1 meter square.
A figure contains geometrical objects such as points, lines, circles, etc.
In addition to numbers, text, formulae, etc. A document may also include macro-constructions, used in the simplified reproduction of constructions in a figure and to extend the functionalities of the software.The application allows the user to open several documents simultaneously.
The various zones of the Cabri II Plus window:
Default Tool bar and the names of the various toolboxes:
| An existing object can be selected. | |
| An existing object can be selected, movedor used within a construction. | |
| Appears when one clicks on an existing object to select it or to use it in a construction. | |
| A number of different selections may be made from this point.A single click offers a choice of the objects under the cursor. Select one from amongst the various possibilities. | |
| Appears when moving an object. | |
| The cursor is in an unoccupied region of the sheet. 'Click & Drag' to define a rectangular selection. | |
| Signals the sheet displacement mode. To select this mode at any moment, press and hold CTRL. | |
| Appears when moving the sheet. | |
| Indicates that a single click will create a new 'free point' on the sheet. | |
| Indicates that a single click will create a new point on an existing object, or a new point at the intersection of two existing objects. | |
| Indicates that a single click will fill-in the object under the cursor with the currently selected color. | |
| Indicates that a single click will change the attributes (e.g.: Color, Style, Thickness, etc.) of the object under the cursor. |