Two reflections II (intersecting lines): Difference between revisions
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<jsxgraph width="500" height="500" box="box"> | <jsxgraph width="500" height="500" box="box"> | ||
(function () { | (function () { | ||
var board = JXG.JSXGraph.initBoard('box', {boundingbox: [-5, 5, 5, 5], keepaspectratio:true}), | var board = JXG.JSXGraph.initBoard('box', {boundingbox: [-5, 5, 5, -5], keepaspectratio:true}), | ||
A = board.create('point', [-2, -2], {withLabel:false}), | A = board.create('point', [-2, -2], {withLabel:false}), | ||
B = board.create('point', [4, 0], {withLabel:false}), | B = board.create('point', [4, 0], {withLabel:false}), | ||
C = board.create('point', [-2, 2], {withLabel:false}), | C = board.create('point', [-2, 2], {withLabel:false}), | ||
s = board.create('line',[A,B], {name:'s', withLabel:true}), | s = board.create('line',[A,B], {name:'s', withLabel:true}), | ||
t = board.create('line',[C,B], {name:'t', withLabel:true}), | t = board.create('line',[C,B], {name:'t', withLabel:true}), | ||
Line 14: | Line 13: | ||
P1 = board.create('point', [0,-3], {name:'P_1', color:'green', size:8}), | P1 = board.create('point', [0,-3], {name:'P_1', color:'green', size:8}), | ||
P2 = board.create('point', [P1, Ss], {name:'P_2', color:'green'}), | P2 = board.create('point', [P1, Ss], {name:'P_2', color:'green'}), | ||
P3 = board.create('point', [P2, St], {name:'P_3', color:'green'}), | P3 = board.create('point', [P2, St], {name:'P_3', color:'green', trace:true}), | ||
Q1 = board.create('point', [1,-4], {name:'Q_1', color:'blue', size:8}), | Q1 = board.create('point', [1,-4], {name:'Q_1', color:'blue', size:8}), | ||
Q2 = board.create('point', [Q1, Ss], {name:'Q_2', color:'blue'}), | Q2 = board.create('point', [Q1, Ss], {name:'Q_2', color:'blue'}), | ||
Q3 = board.create('point', [Q2, St], {name:'Q_3', color:'blue'}), | Q3 = board.create('point', [Q2, St], {name:'Q_3', color:'blue', trace:true}), | ||
l1 = board.create('line',[P1,Q1], {color:'black', strokeWidth:1, dash:2}), | l1 = board.create('line',[P1,Q1], {color:'black', strokeWidth:1, dash:2}), | ||
Line 24: | Line 23: | ||
l3 = board.create('line',[P3,Q3], {color:'black', strokeWidth:1, dash:2}), | l3 = board.create('line',[P3,Q3], {color:'black', strokeWidth:1, dash:2}), | ||
g1 = board.create('segment',[P1,P2], {color:' | g1 = board.create('segment',[P1,P2], {color:'orange', strokeWidth:1, dash:3}), | ||
g2 = board.create('segment',[P2,P3], {color:' | g2 = board.create('segment',[P2,P3], {color:'orange', strokeWidth:1, dash:3}), | ||
h1 = board.create('segment',[Q1,Q2], {color:' | h1 = board.create('segment',[Q1,Q2], {color:'orange', strokeWidth:1, dash:3}), | ||
h2 = board.create('segment',[Q2,Q3], {color:' | h2 = board.create('segment',[Q2,Q3], {color:'orange', strokeWidth:1, dash:3}); | ||