/// <summary>
/// 绘制谱图
/// </summary>
/// <param name="data">频率、值</param>
public void DrawData(Dictionary <double, short> data, int pRemainder, DateTime?pTime = null)
{
if (_writeableBmp == null)
{
return;
}
if (!_receiveData)
{
return;
}
if (_writeableBmp.PixelHeight == 0 || _writeableBmp.PixelWidth == 0)
{
_writeableBmp = new WriteableBitmap((int)uxWaterfall.Width, (int)uxWaterfall.Height, 96, 96, PixelFormats.Pbgra32, null);
_writeableBmp.FillRectangle(0, 0, (int)uxWaterfall.Width, (int)uxWaterfall.Height, Colors.Transparent);
uxWaterfall.Source = _writeableBmp;
}
foreach (var fv in data)
{
if (_maxColumn == 0 || _maxColumn < _writeableBmp.PixelWidth)
{
_maxColumn = _writeableBmp.PixelWidth;
}
_cachedDatas[fv.Key] = fv.Value;
}
_writeableBmp.Clear(Colors.Transparent);
var c = (_maxRow * (_timestampCount - 1) / _writeableBmp.PixelHeight) % _timestampCount;
if (c != c1)
{
Timestamps.RemoveAt(0);
Timestamps.Insert(_timestampCount - 1, pTime == null ? "--:--:--" : pTime.Value.ToLongTimeString());
c1 = c;
}
if (_isCompletion)
{
_maxRow += 1;
}
else
{
_maxRow = _cachedDatas.Count;
}
_writeableBmp.FillRectangle(0, 0, _writeableBmp.PixelWidth, _maxRow > _writeableBmp.PixelHeight ? _writeableBmp.PixelHeight : _maxRow, Color.FromArgb(210, 22, 22, 255));
_row = _maxRow;
foreach (var tuple in _cachedDatas)
{
if (tuple.Key < XAxisMinimum || tuple.Key > XAxisMaximum)
{
continue;
}
var currFreq = Math.Floor(tuple.Key);
var xAxisMaximumKhz = WMonitorUtile.ConvertFreqValue("mhz", "khz", XAxisMaximum);
var xAxisMinimumKhz = WMonitorUtile.ConvertFreqValue("mhz", "khz", XAxisMinimum);
var xKey = WMonitorUtile.ConvertFreqValue("mhz", "khz", tuple.Key);
//if (currFreq.Equals(Math.Floor(XAxisMaximum)) || WMonitorUtile.ConvertFreqValue("mhz", "khz", tuple.Key).Equals(XAxisMaximumKhz - pRemainder))//起始减去终止频率除以步进有余数时,瀑布图显示一半的bug
//if (currFreq.Equals(Math.Floor(XAxisMaximum)) || (xAxisMaximumKhz - xKey) < pRemainder)
//{
_isCompletion = true;
//}
var col = (int)((tuple.Key - XAxisMinimum) * XUnitLength) + 1;
if (col < EdgeMargin)
{
col = EdgeMargin;
}
if (col > _writeableBmp.PixelWidth)
{
col = _writeableBmp.PixelWidth - 1;
}
var y = tuple.Value;
if (y <= YAxisMinimum || y < ThresholdValue) //门限
{
continue;
}
if (_cachedColors.Keys.Contains(y))
{
_writeableBmp.DrawLine(col, 0, col, _row, _cachedColors[y]);
}
else
{
_cachedColors[y] = GetColorAtPoint(uxYAxisRect,
new Point(uxYAxisRect.ActualWidth,
uxYAxisRect.ActualHeight - Math.Abs(y - YAxisMinimum) * _yUnitLength));
_writeableBmp.DrawLine(col, 0, col, _row, _cachedColors[y]);
}
if (!IsCompletion || _maxRow >= _cachedDatas.Count)
{
_row--;
}
}
// _writeableBmp.Invalidate();
}