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
|
#include <qwt_plot.h>
#include <qwt_plot_dict.h>
#include "incrementalplot.h"
CurveData::CurveData():
d_count(0)
{
}
void CurveData::append(double *x, double *y, int count)
{
int newSize = ( (d_count + count) / 1000 + 1 ) * 1000;
if ( newSize > size() )
{
d_x.resize(newSize);
d_y.resize(newSize);
}
for ( register int i = 0; i < count; i++ )
{
d_x[d_count + i] = x[i];
d_y[d_count + i] = y[i];
}
d_count += count;
}
int CurveData::count() const
{
return d_count;
}
int CurveData::size() const
{
return d_x.size();
}
double *CurveData::x() const
{
return d_x.data();
}
double *CurveData::y() const
{
return d_y.data();
}
IncrementalPlot::IncrementalPlot(QWidget *parent, const char* name):
QwtPlot(parent, name)
{
d_curveDictionary.setAutoDelete(TRUE);
}
IncrementalPlot::~IncrementalPlot()
{
removeCurves();
}
void IncrementalPlot::appendCurvePoint(long curveId, double x, double y)
{
appendCurveData(curveId, &x, &y, 1);
}
void IncrementalPlot::appendCurveData(long curveId,
double *x, double *y, int size)
{
QwtPlotCurve *curve = IncrementalPlot::curve(curveId);
if ( curve == 0 || size <= 0 )
return;
CurveData *curveData = d_curveDictionary.find(curveId);
if ( curveData == 0 )
{
curveData = new CurveData();
d_curveDictionary.insert(curveId, curveData);
}
curveData->append(x, y, size);
curve->setRawData(curveData->x(), curveData->y(), curveData->count());
drawCurve(curveId, curve->dataSize() - size, curve->dataSize() - 1);
}
void IncrementalPlot::removeCurveData(long curveId)
{
d_curveDictionary.remove(curveId);
}
|
