C.a.R., Features
Here I have a summary of the features of C.a.R. So you will be able to compare with similar programs.
- Simulation of school geometry constructions in the plane.
- Runs on almost any modern platform, including Windows 95, NT or
better, Linux, Mac OS, Mac
OSX, Sun Solaris and other Unix.
- Special graphical enhanced version for Java 1.3 (using e.g. anti-aliasing).
- Free source under GPL.
- HTML documentation.
-
Context sensitive help integrated into the program.
- Modern intuitive interface, which follows the common interface rules.
- GUI in English, German, Italian, Portuguese or Spanish.
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Configurable toolbox.
- Visual mode of construction or descriptive mode, using commands.
- Programming language for constructions, including macros and macros called in macros.
- Uses the right mouse button for object properties and object movement as usual.
- Automatic generation of points on objects
and intersections, with or without confirmation
- Lengths of segments and other sizes may be fixed. Fixed circles and angles
can still be changed with the mouse, unless they are fixed by a composite expression.
- Partially visible circles and lines, which display only the relevant parts.
- Circles can be drawn as arcs.
- Arcs and angles can be kept acute.
- Hiding of construction details. Super-hiding
with the hide tool and the control key.
- Colored construction objects.
- Think, normal or thick stroke for objects.
- Arrows.
- Display of object names, values or both.
- User controlled display accuracy for values.
- Construction tools for parallels, plumb lines and midpoints.
- Track of points while the user moves another point. Tracks of more than one point or line.
- Conic sections determined by 5 points.
- Tracks of curves from a set of tangents.
- Automatic tracks, while a point moves along a circle or a line. Tracks try to run through all construction states. Moved point turns, when it becomes invalid.
- Tracks or other constructions can be fixed as a
background picture.
- Animation, and animated tracks.
- Macros to speed up construction steps and to make possible more complicate constructions.
- Optional prompt for values of angles, sizes of circles and expressions in macros.
- Assignments. Computer checks solution.
- Presentation of constructions in the Web.
- Automatic export into HTML, including style sheets, colors and other
details.
- Use of the XML standard to store constructions.
- Constructions may be stored in compressed form.
- Fine printing.
- Arithmetic expression to display values and to fix object parameters (segment length, point position, angle
size etc.). Expressions can be used in other expressions, and work in macros.
- Filled polygons with optional area display, transparent in Java 1.3., filled circles and angles.
- Multi line text.
- Replay of the construction.
- Optional grid with point snap.
- Background picture or tiled pattern.
-
Save graphics to bitmap,
in SVG, EPS or in FIG format.
- Constructions may be loaded in descriptive mode from a file, or edited in-line.