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[Corcelle <address@hidden>]

Hello,

I started to write an extension for the graphics mode which could be 
useful for math teachers.
This plugin adds a menu "Figures". In this menu, different entries 
display commands on the footer where you just have to replace parameters 
if necessary.

For example, the entry :
  Figure->Triangles->Triangle ABC connaissant AB BC et CA

gives in the footer :
  (make-fig-triangle ’(5 4 3) ’("A" "B" "C") " cm" "lengths" "double" 
"simple")

at this point you only need to change (if need) :
 - ’(5 4 3) : the lengths of the sides of the triangle,
 - ’("A" "B" "C") : the labels of the summits (they can be empty)
 - " cm" : the string added to the labels of the sides (it can be empty),
 - "lengths" : if you want the lengths of the sides ("none" else)
 - "double" : type of mark on the sides if they have the same length 
(it can be empty, "simple", "triple")
 - "simple" : type of mark on the angles if they have the same measure 
(it can be empty, "simple", "triple", "circle")

and Entry or Esc.

Remarks :
 - On the footer, additional help can be displayed with "up-arrow" or 
"down-arrow".
 - In a few commands you'll have to give position of the points using 
complex numbers as : 5 ; -6.2 ; 3-2i ; -5.5i ; +8i (don't forget the +)
 - For easier use, select :
Edit -> Preferences -> Interactive questions -> On the footer
(instead of "In popup windows")

This menu and the commands are in french. If someone is interested I 
could give an english version as well.

Let me know if something goes wrong.

Have a good day.

Emmanuël

The plugin figures.zip can be found here : http://corcelle.wordpress.com/


For developers :

Tell me if you know a way to to use a few af this commands more 
interactively.
For example, select "Bissector" clic on 3 points and have the result on 
the screen instead of having to manually change the list of affixes ot 
this 3 points on the footer. The possibilities could be enormous (at least).
Thank you.