1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
| <?php
class Day
{
var $low;
var $high;
var $close;
public function __construct( $low, $high, $close )
{
$this->low = $low;
$this->high = $high;
$this->close = $close;
}
}
class Trace
{
var $days = array();
var $high = 0.0;
var $low = 100000.0;
public function addDay( $low, $high, $close )
{
$this->days []= new Day( $low, $high, $close );
if ( $low < $this->low ) $this->low = $low;
if ( $high > $this->high ) $this->high = $high;
}
public function hiloPath( $trans )
{
$p = new Path();
$d = 0;
foreach( $this->days as $day )
{
$x = $trans->xscale( $d );
$y = $trans->yscale( $day->low );
$p->add( $x, $y );
$d += 1;
}
for( $d = (count( $this->days ) - 1); $d >= 0; $d -= 1 )
{
$x = $trans->xscale( $d );
$y = $trans->yscale( $this->days[$d]->high );
$p->add( $x, $y );
}
return $p;
}
public function closePath( $trans )
{
$p = new Path();
$d = 0;
foreach( $this->days as $day )
{
$x = $trans->xscale( $d );
$y = $trans->yscale( $day->close );
$p->add( $x, $y );
$d += 1;
}
return $p;
}
}
class Data
{
var $traces = array();
var $high = 0;
var $low = 100000;
function parseXML( $file )
{
$data_dom = new DomDocument();
$data_dom->load( $file );
$elStocks = $data_dom->getElementsByTagName( 'stock' );
foreach( $elStocks as $stock )
{
$trace = new Trace();
$days = $stock->getElementsByTagName( 'day' );
foreach( $days as $day )
{
$trace->addDay( (float)$day->getAttribute('low'),
(float)$day->getAttribute('high'),
(float)$day->getAttribute('close') );
}
$this->traces []= $trace;
if ( $trace->high > $this->high ) $this->high = $trace->high;
if ( $trace->low < $this->low ) $this->low = $trace->low;
}
}
}
?>
|
