General tools

File Operations

The File Operations are rather standard and similar to corresponding operations in other programs. Constructions are stored in a special file format. The construction files have the extension ".cdy".

New

This action clears the entire construction. Everything is reset to the original state.

Load

Loads a construction.

Save

Prompts for a filename if needed and saves the construction.

Save As

Prompts for a new filename and save the construction.

Export Tools

Print all Views

Prints all currently open views. This operation makes use of the Java printing routines. The output is inferior to the output produced using the "Print PS" command of a view, due to the limits of the Java printing interface. If you have the facilities to print and preview PostScript files (we recommend installing Ghostscript and GSView resp. gv) it is much better to use the PostScript printout routines.

Export to HTML

This operation automatically generates an interactive HTML page.

Create an Exercise

With this operation you can generate student exercises, which can be used inside a standard web browser. Read more about it in the chapter on creating interactive web pages and exercises.

Undo/Redo

Undo

This operation undoes the last performed action. The following actions are undoable:

• Construction steps
• Movements
• Appearance changes
• Zooming, translating, and rotation of views
• Deletion of elements

You can undo as many consecutive operations as you want.

Redo

Redoes the last undo operation. You can redo as many consecutive undo operations as you want.

Delete

Deletes all selected elements and all elements that depend on them. If you delete elements by accident, just use "Undo" to restore them.

Selection Tools

Select All

Selects all geometric elements.

Select Points

Selects all points.

Select Lines

Selects all lines.

Select Conics

Selects all circles and conics.

Deselect

Clears the current selection.