Difference between revisions of "Interactive JessieScript"

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Line 1: Line 1:
 
<jsxgraph width="600" height="450" box="box">
 
<jsxgraph width="600" height="450" box="box">
 
var board, construction = [];
 
var board, construction = [];
board = JXG.JSXGraph.initBoard('box', {grid:true, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});
+
board = JXG.JSXGraph.initBoard('box', {grid:false, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});
  
 
function construct() {
 
function construct() {
 
     var t = document.getElementById('input').value;
 
     var t = document.getElementById('input').value;
 +
    board.suspendUpdate();
 
     construction.push(board.construct(t));
 
     construction.push(board.construct(t));
 +
    board.unsuspendUpdate();
 +
}
 +
function clearAll() {
 +
    JXG.JSXGraph.freeBoard(board);
 +
    board = JXG.JSXGraph.initBoard('box', {grid:true, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});
 
}
 
}
 
 
</jsxgraph>
 
</jsxgraph>
  
Line 17: Line 22:
 
<br>
 
<br>
 
<input type="button" value="set" onClick="construct()">
 
<input type="button" value="set" onClick="construct()">
 +
<input type="button" value="clear all" onClick="clearAll()">
 
</form>
 
</form>
 
</html>
 
</html>
  
===Possible elements:===
+
===Available commands===
{| cellpadding="8" cellspacing="0" border="1"
+
See our [http://jsxgraph.uni-bayreuth.de/wp/documentation/ documentation page] for a list of commands.
! Construction !! Description
 
|-
 
| A(1,1)    || Point with name 'A' at the position (1,1)
 
|-
 
| ZY(0.5<nowiki>|</nowiki>1)    || Point with name 'ZY' at the position (0.5,1)
 
|-
 
| ]AB[    || straight line through the points A and B
 
|-
 
| [AB[    || ray through the points A and B, stopping at A
 
|-
 
| ]AB]    || ray through the points A and B, stopping at B
 
|-
 
| [AB]    || segment through the points A and B
 
|-
 
| g=[AB]   || segment through the points A and B, named by 'g'
 
|-
 
| k(A,1)    || circle with midpoint A and radius 1
 
|-
 
| k(A,B)    || circle with midpoint A through the point B on the circle line
 
|-
 
| k(A,[BC])    || circle with midpoint A and radius defined by the length of the (not necessarily existing) segement [BC]
 
|-
 
| k_1=k(A,1)    || circle with midpoint A and radius 1, named by 'k_1'
 
|}
 
The different elements have to be separated by semicolon.
 
  
===The JavaScript code===
+
==The JavaScript code==
 
<source lang="javascript">
 
<source lang="javascript">
 
var board, construction = [];
 
var board, construction = [];
Line 55: Line 36:
 
function construct() {
 
function construct() {
 
     var t = document.getElementById('input').value;
 
     var t = document.getElementById('input').value;
 +
    board.suspendUpdate();
 
     construction.push(board.construct(t));
 
     construction.push(board.construct(t));
 +
    board.unsuspendUpdate();
 +
}
 +
 +
function clearAll() {
 +
    JXG.JSXGraph.freeBoard(board);
 +
    board = JXG.JSXGraph.initBoard('box', {grid:true, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});
 
}
 
}
 
</source>
 
</source>
 +
 +
[[Category:Geometry]]
 +
[[Category:Examples]]

Latest revision as of 09:48, 8 June 2011



Available commands

See our documentation page for a list of commands.

The JavaScript code

var board, construction = [];
board = JXG.JSXGraph.initBoard('box', {grid:true, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});

function construct() {
    var t = document.getElementById('input').value;
    board.suspendUpdate();
    construction.push(board.construct(t));
    board.unsuspendUpdate();
}

function clearAll() {
    JXG.JSXGraph.freeBoard(board);
    board = JXG.JSXGraph.initBoard('box', {grid:true, boundingbox:[-1,6,11,-3], keepaspectratio:true, axis:true});
}