//
// Autor: Timo Ehmke (ehmke@uni-flensburg.de)
//

// Systemvariablen 
// ===============

snapToGrid = true
showGrid = true
gridSize = 20

// Figurenbeschreibung 
// ===================

e[1]  = A;  point;   fixed;        -6.0,0.0; 
e[2]  = B;  point;   fixed;        -3.0,6.0; 
e[3]  = C;  point;   fixed;        -11.0, 6.0; 
e[4]  = P1; polygon; triangle;     A,B,C;     0;0;black;yellow 
e[5]  = S1; point;   fixed;        -2.0,2.0;  "hidden"
e[6]  = S2; point;   fixed;        -5.0,-1.0; "hidden"
e[7]  = s;  line;    straightline; S1,S2;     "hidden"
e[8]  = A'; point;   mirror;       A,s;       black;black;0;smallsquare
e[9]  = B'; point;   free;         6.0,-1.0; 
e[10] = C'; point;   free;         4.0,-5.0; 
e[11] = P2; polygon; triangle;     A',B',C';  0;0;black;lightGray 
e[12] = G1; point;   free;         -8.0,-3.0; "hideLabel"
e[13] = G2; point;   free;         2.0,-6.0;  "hideLabel"
e[14] = g;  line;    straightline; G1,G2; 
e[15] = MA; point;   midpoint;     A,A';      "hidden"
e[16] = MB; point;   midpoint;     B,B';      "hidden"
e[17] = MC; point;   midpoint;     C,C';      "hidden"
e[18] = ZB; point;   mirror;       B,s;       "hidden"
e[19] = ZC; point;   mirror;       C,s;       "hidden"
e[20] = m2; measure; button;       "Help","help";  
e[21] = m3; measure; button;       "Evaluation","evaluate";  


// Hilfen
// ======

<Help>
     The straight line g must go 
     through the midpoint of A and A'.
</Help>


// Antwortanalyse
// ==============

<Problem>
 MAX_ANSWER = 0
 condition[1] = "isIncident(ZB,B')"
 condition[2] = "isIncident(ZC,C')"
 condition[3] = "isIncident(G1,s)
 condition[4] = "isIncident(G2,s)"
</Problem>


<Answer 1>
 key = "condition[1] AND condition[2] AND condition[3] AND condition[4]"
 comment[1] = " Right. /n In this position A'B'C' is the image /n of a reflection of ABC on g."
</Answer 1>

<Answer 2>
 key = "NOT(condition[1]) AND NOT(condition[2]) AND condition[3] AND condition[4]"
 comment[1] = " Your answer is partly right. /n The position of g is right, /n but the points B' and C' are wrong. /n Just try again."
</Answer 2>

<Answer 3>
 key = "(NOT(condition[1])) AND condition[2] AND condition[3] AND condition[4]"
 comment[1] = " Your answer is partly right. /n The position of g and C' is right, /n but points B' is wrong. /n Just try again."
</Answer 3>

<Answer 4>
 key = "(NOT(condition[2])) AND condition[1] AND condition[3] AND condition[4]"
 comment[1] = " Your answer is partly right. /n The position of g and B' is right, /n but points C' is wrong. /n Just try again."
</Answer 4>

<Answer 5>
 key = "1"
 comment[1] = " Your answer is not right. /n Just try again."
</Answer 5>