/// <summary>
/// Virtual to Screen XY
/// </summary>
public static LongPoint TranslateToScreen(LongPoint virtualpoint, DataTimeRange xrange, DataRange yrange, LongRectangle rectangle)
{
if (xrange.Delta == 0 || yrange.Delta == 0)
{
// have seen this happen when we try to render graphs after the host failed to install a vm
// doesn't matter too much what we return as the VM entry is going to get removed. Just don't crash.
log.ErrorFormat("Tried to translate datapoint through range of zero. xrange.Delta: {0}, yrange.Delta: {1}",
xrange.Delta, yrange.Delta);
return new LongPoint(0, 0);
}
// work out x, assume origin is bottom right
double x = rectangle.Right - ((rectangle.Width * (virtualpoint.X - xrange.Min)) / xrange.Delta);
// work out y
double y = rectangle.Bottom - ((rectangle.Height * (virtualpoint.Y - yrange.Min)) / yrange.Delta);
y = y > rectangle.Bottom ? rectangle.Bottom : y < rectangle.Y ? rectangle.Y : y;
if (x >= ARBITRARY_MICROSOFT_LINE_MAX_LENGTH && y >= ARBITRARY_MICROSOFT_LINE_MAX_LENGTH)
{
log.DebugFormat("Point translated to more than max line length: x={0} y={1} vx={2} vy={3} xrange_min={4} xrange_max={5} yrange_min={6} yrange_max={7} rectangle_x={8} rectangle_y={9} rectangle_w={10} rectangle_h={11}",
x, y,
virtualpoint.X, virtualpoint.Y,
xrange.Min, xrange.Max,
yrange.Min, yrange.Max,
rectangle.X, rectangle.Y,
rectangle.Width, rectangle.Height);
// draw a random line as this is better than crashing
return new LongPoint(0, 0);
}
return new LongPoint((long)x, (long)y);
}
/// <summary>
/// Virtual to Screen XY
/// </summary>
public static LongPoint TranslateToScreen(LongPoint virtualpoint, DataTimeRange xrange, DataRange yrange, LongRectangle rectangle)
{
if (xrange.Delta == 0 || yrange.Delta == 0)
{
// have seen this happen when we try to render graphs after the host failed to install a vm
// doesn't matter too much what we return as the VM entry is going to get removed. Just don't crash.
log.ErrorFormat("Tried to translate datapoint through range of zero. xrange.Delta: {0}, yrange.Delta: {1}",
xrange.Delta, yrange.Delta);
return(new LongPoint(0, 0));
}
// work out x, assume origin is bottom right
double x = rectangle.Right - ((rectangle.Width * (virtualpoint.X - xrange.Min)) / xrange.Delta);
// work out y
double y = rectangle.Bottom - ((rectangle.Height * (virtualpoint.Y - yrange.Min)) / yrange.Delta);
y = y > rectangle.Bottom ? rectangle.Bottom : y < rectangle.Y ? rectangle.Y : y;
if (x >= ARBITRARY_MICROSOFT_LINE_MAX_LENGTH && y >= ARBITRARY_MICROSOFT_LINE_MAX_LENGTH)
{
log.DebugFormat("Point translated to more than max line length: x={0} y={1} vx={2} vy={3} xrange_min={4} xrange_max={5} yrange_min={6} yrange_max={7} rectangle_x={8} rectangle_y={9} rectangle_w={10} rectangle_h={11}",
x, y,
virtualpoint.X, virtualpoint.Y,
xrange.Min, xrange.Max,
yrange.Min, yrange.Max,
rectangle.X, rectangle.Y,
rectangle.Width, rectangle.Height);
// draw a random line as this is better than crashing
return(new LongPoint(0, 0));
}
return(new LongPoint((long)x, (long)y));
}
/// <summary>
/// Screen XY to Virtual
/// </summary>
public static LongPoint DeTranslateFromScreen(LongPoint screenpoint, DataTimeRange xrange, DataRange yrange, LongRectangle rectangle)
{
// work out x, assume origin is bottom right
double x = xrange.Min + (xrange.Delta * (rectangle.Right - screenpoint.X)) / (double)rectangle.Width;
// work out y
double y = yrange.Min + (yrange.Delta * (rectangle.Bottom - screenpoint.Y)) / (double)rectangle.Height;
return new LongPoint((long)x, (long)y);
}
/// <summary>
/// Screen XY to Virtual
/// </summary>
public static LongPoint DeTranslateFromScreen(LongPoint screenpoint, DataTimeRange xrange, DataRange yrange, LongRectangle rectangle)
{
// work out x, assume origin is bottom right
double x = xrange.Min + (xrange.Delta * (rectangle.Right - screenpoint.X)) / (double)rectangle.Width;
// work out y
double y = yrange.Min + (yrange.Delta * (rectangle.Bottom - screenpoint.Y)) / (double)rectangle.Height;
return(new LongPoint((long)x, (long)y));
}
