public void DrawXY(Graphics g, int w, int h, OscilloscopeLine ly)
{
if ((dataMax == null) || (dataMax.Length < 2))
{
return;
}
if (ly == null)
{
return;
}
if (!show || !ly.show)
{
return;
}
if ((ly.dataMax == null) || (ly.dataMax.Length < 2))
{
return;
}
if (ly.dataMax.Length != dataMax.Length)
{
return;
}
if ((points == null) || (points.Length != dataMax.Length))
{
points = new PointF[dataMax.Length]; // reAlloc
}
for (int i = 0; i < dataMax.Length; i++)
{
points[i].X = (float)(w / 2.0 + w * (dataMax[i] / yScale + yOffset));
points[i].Y = (float)(h / 2.0 - h * (ly.dataMax[i] / ly.yScale + ly.yOffset));
}
g.DrawLines(penLine, points);
}
public void initOscilloscope(Oscilloscope _oscilloscope, int _channels, int _FIFOdepth)
{
inputs = new FIFO[_channels];
for (int i = 0; i < _channels; i++)
{
inputs[i] = new FIFO(_FIFOdepth);
}
lines = new OscilloscopeLine[_channels];
osciFIFO = new OsciFIFO[_channels];
inputsActive = new Boolean[_channels];
yScale = new YScale[_channels];
for (int i = 0; i < _channels; i++)
{
lines[i] = new OscilloscopeLine(oscilloscopeScreen);
switch (i % 4)
{
case 0: lines[i].color = Color.Red; break;
case 1: lines[1].color = Color.Green; break;
case 2: lines[2].color = Color.Cyan; break;
case 3: lines[3].color = Color.Magenta; break;
}
osciFIFO[i] = new OsciFIFO(_oscilloscope.owner.sampleRate / 2);
yScale[i] = YScale.Div100m;
}
FIFOdepth = _FIFOdepth;
oscilloscope = _oscilloscope;
timer.Interval = 100; // ms
timer.Tick += Timer_Tick;
channels = _channels; // Triggers start
selectedChannel = 0;
timeScale = TimeScale.Div1ms;
OsciHorzScale.SelectedIndex = (int)timeScale;
triggerMode = TriggerMode.Auto;
OsciTriggerAuto.Checked = true;
triggerFromChannel = 0;
triggerLevel = 0;
trigSlope = TrigSlope.Rising;
for (int i = 0; i < channels; i++)
{
lines[i].yScale = getYScale(i);
}
xOffset = 0;
oscilloscopeScreen.initOscilloscopeScreen(this, channels, lines);
UpdateChannelScales();
OsciChannelSelectA.Checked = true;
selectChannel(selectedChannel);
OsciVertScale.SelectedIndex = (int)yScale[selectedChannel];
OsciChannelOnA.Checked = lines[0].show;
OsciChannelOnB.Checked = lines[1].show;
OsciChannelOnC.Checked = lines[2].show;
OsciChannelOnD.Checked = lines[3].show;
XYDisplay.Checked = false;
xydisplay = false;
EnGrid.Checked = true;
drawGrid = true;
timer.Enabled = true;
}
