Data plot: Difference between revisions

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Line 1: Line 1:
<jsxgraph width="600" height="500">
<jsxgraph width="700" height="500">
var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-100,5000,25000,-400],axis:true});
var color = ['blue','red','magenta', 'green', 'black','yellow'];
var c = brd.create('curve',[[0],[0]],{strokeColor:'red'});
var nr = 0;
var maxX = 0.0;
var maxY = 0.0;
var minY = 100000.0;
 
var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-1,5000,25,-400],axis:true});


var plotData = function() {
var plotData = function() {
Line 7: Line 12:
     var t = document.getElementById('in_data').value;
     var t = document.getElementById('in_data').value;
     var data = t.split('\n');
     var data = t.split('\n');
     for (i=0;i<data.length;i++) {
     for (i=0;i<data.length-1;i++) {
         d = data[i].split(';');
         d = data[i].split(';');
         x[i] = d[1]*1.0;
         x[i] = d[0]*1.0;
         y[i] = d[0]*1.0;
         y[i] = d[1]*1.0;
        if (x[i]>maxX) maxX = x[i];
        if (y[i]>maxY) maxY = y[i];
        if (y[i]<minY) minY = y[i];
     }
     }
     var maX = JXG.Mat.Statistics.max(x);
     brd.setBoundingBox([-1,maxY*1.01,maxX*1.05,minY*0.95]);
     var maY = JXG.Mat.Statistics.max(y);
     var c = brd.create('curve',[x,y],{strokeColor:color[nr%color.length]});
    brd.setBoundingBox([-100,maxX,maxY,-400]);
     nr++;
     c.dataX = x;
    c.dataY = y;
     brd.update();
     brd.update();
}
};
 
var clearBoard = function() {
    JXG.JSXGraph.freeBoard(brd);
    brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-100,5000,25,-400],axis:true});
    maxX = 0.0;
    maxY = 0.0;
};
 
var clearInput = function() {
    document.getElementById('in_data').value = '';
};


</jsxgraph>
</jsxgraph>
Line 24: Line 41:
<form>
<form>
<input type="button" value="plot data" onClick="plotData()">
<input type="button" value="plot data" onClick="plotData()">
<input type="button" value="clear input" onClick="clearInput()">
<input type="button" value="clear all" onClick="clearBoard()"><br>
Spalte 1: y-Koordinate, Spalte 2: x-Koordinate
<textarea id="in_data" cols=20 rows=15>
<textarea id="in_data" cols=20 rows=15>
</textarea>
1 ; 7612
2 ; 7632
3 ; 7640
4 ; 7634
5 ; 7616
6 ; 7607
7 ; 7623
8 ; 7639
9 ; 7635
10 ; 7619
11 ; 7606
12 ; 7612
13 ; 7633
14 ; 7641
15 ; 7637
16 ; 7619
17 ; 7617
18 ; 6673
19 ; 7642
20 ; 7653
</textarea>
</form>
</form>
</html>
</html>
[[Category:Examples]]
[[Category:Charts]]

Latest revision as of 07:41, 6 July 2011


Spalte 1: y-Koordinate, Spalte 2: x-Koordinate

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