/// <summary>
/// Generates and stores the default scaling information for the current canvas
/// </summary>
/// <param name="displayUnit">the unit of time covered by the viewport at one time</param>
/// <param name="startTime">the time at which the canvas starts</param>
/// <param name="endTime">the time at which the canvas ends</param>
public GraphScaleData(FrameNodeLevel displayUnit, DateTime startTime, DateTime endTime, int totalFilters = 0)
{
DisplayUnit = displayUnit;
Debug.Assert(displayUnit != FrameNodeLevel.Second);
DateTime spanStart;
_empty = true; //graph is initially empty
TimeSpan span;
switch (displayUnit)
{
case FrameNodeLevel.Root:
span = endTime.Subtract(startTime);
spanStart = CanvasManager.FileManager.StartTime;
break;
case FrameNodeLevel.Year:
spanStart = new DateTime(startTime.Year, 1, 1);
span = new DateTime(startTime.Year + 1, 1, 1).Subtract(spanStart);
break;
case FrameNodeLevel.Month:
spanStart = new DateTime(startTime.Year, startTime.Month, 1);
span = spanStart.AddMonths(1).Subtract(spanStart);
break;
case FrameNodeLevel.Day:
spanStart = new DateTime(startTime.Year, startTime.Month, startTime.Day);
span = spanStart.AddDays(1).Subtract(spanStart);
break;
case FrameNodeLevel.Hour:
spanStart = new DateTime(startTime.Year, startTime.Month, startTime.Day, startTime.Hour, 0, 0);
span = spanStart.AddHours(1).Subtract(spanStart);
break;
case FrameNodeLevel.PartHour:
spanStart = new DateTime(startTime.Year, startTime.Month, startTime.Day, startTime.Hour,
startTime.Minute - (startTime.Minute % 5), 0);
span = spanStart.AddMinutes(5).Subtract(spanStart);
break;
case FrameNodeLevel.Minute:
spanStart = new DateTime(startTime.Year, startTime.Month, startTime.Day, startTime.Hour,
startTime.Minute, 0);
span = spanStart.AddMinutes(1).Subtract(spanStart);
break;
default:
throw new ArgumentOutOfRangeException("displayUnit", displayUnit, "GraphScaleData Constructor: RenderUnit out of range. Seconds cannot be subdivided, and are not valid.");
}
XShift = (float)startTime.Subtract(spanStart).TotalSeconds;
XShift -= CanvasManager.TimeToOffset(spanStart);
BaseScale = (float)(span.TotalSeconds);
TotalPackets = 0;
TotalData = 0;
VertexCount = 0;
TotalMatchingPackets = new List <long>(totalFilters);
MinMatchingCount = new List <long>(totalFilters);
MaxMatchingCount = new List <long>(totalFilters);
for (int k = 0; k < totalFilters; k++)
{
TotalMatchingPackets.Add(0);
MinMatchingCount.Add(0);
MaxMatchingCount.Add(0);
}
}
public void DrillLocation()
{
CanvasManager.Drill(_background.StartPosition, _background.EndPosition);
SetCanvasData(CanvasManager.CurrentCanvasData);
}
public void Generate(CanvasData data)
{
Debug.Assert(data.RenderUnit != FrameNodeLevel.Root); //cannot render at the root level
var start = data.StartTime;
var end = data.EndTime;
MajorOffsets.Clear();
MinorOffsets.Clear();
DateTime currMajor, currMinor, tmp;
switch (data.RenderUnit)
{
case FrameNodeLevel.Year:
case FrameNodeLevel.Month:
currMinor = new DateTime(start.Year, 1, 1);
tmp = new DateTime(end.Year, 1, 1);
if (end != tmp)
{
end = tmp.AddYears(1);
}
while (currMinor <= end)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = currMinor.AddYears(1);
}
MinorTickLevel = FrameNodeLevel.Year;
break;
case FrameNodeLevel.Day:
currMajor = new DateTime(start.Year, 1, 1);
currMinor = currMajor; // end of first month
tmp = new DateTime(end.Year, 1, 1);
if (end != tmp)
{
end = tmp.AddYears(1);
}
while (currMajor <= end)
{
MajorOffsets.Add(CanvasManager.TimeToOffset(currMajor));
currMajor = currMajor.AddYears(1);
while (currMinor < currMajor)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = currMinor.AddMonths(1);
}
}
MinorTickLevel = FrameNodeLevel.Month;
break;
case FrameNodeLevel.Hour:
currMajor = new DateTime(start.Year, start.Month, 1);
currMinor = currMajor; // 2nd day
tmp = new DateTime(end.Year, end.Month, 1);
if (end != tmp)
{
end = tmp.AddMonths(1);
}
while (currMajor <= end)
{
MajorOffsets.Add(CanvasManager.TimeToOffset(currMajor));
currMajor = currMajor.AddMonths(1);
while (currMinor < currMajor)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = currMinor.AddDays(1);
}
}
MinorTickLevel = FrameNodeLevel.Day;
break;
case FrameNodeLevel.PartHour:
currMajor = new DateTime(start.Year, start.Month, start.Day);
currMinor = currMajor; // 2nd day
tmp = new DateTime(end.Year, end.Month, end.Day);
if (end != tmp)
{
end = tmp.AddDays(1);
}
while (currMajor <= end)
{
MajorOffsets.Add(CanvasManager.TimeToOffset(currMajor));
currMajor = currMajor.AddDays(1);
while (currMinor < currMajor)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = currMinor.AddHours(1);
}
}
MinorTickLevel = FrameNodeLevel.Hour;
break;
case FrameNodeLevel.Minute:
currMajor = new DateTime(start.Year, start.Month, start.Day, start.Hour, 0, 0);
currMinor = currMajor; // 2nd day
tmp = new DateTime(end.Year, end.Month, end.Day, start.Hour, 0, 0);
if (end != tmp)
{
end = tmp.AddHours(1);
}
while (currMajor <= end)
{
MajorOffsets.Add(CanvasManager.TimeToOffset(currMajor));
currMajor = currMajor.AddHours(1);
while (currMinor < currMajor)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = currMinor.AddMinutes(10);
}
}
MinorTickLevel = FrameNodeLevel.PartHour;
break;
case FrameNodeLevel.Second:
currMajor = new DateTime(start.Year, start.Month, start.Day, start.Hour, start.Minute - (start.Minute % 5), 0);
currMinor = currMajor; // 2nd day
tmp = new DateTime(end.Year, end.Month, end.Day, end.Hour, end.Minute - (start.Minute % 5), 0);
if (end != tmp)
{
end = tmp.AddMinutes(5);
}
while (currMajor <= end)
{
MajorOffsets.Add(CanvasManager.TimeToOffset(currMajor));
currMajor = data.DisplayUnit == FrameNodeLevel.Minute ? currMajor.AddMinutes(1) : currMajor.AddMinutes(5);
while (currMinor < currMajor)
{
MinorOffsets.Add(CanvasManager.TimeToOffset(currMinor));
currMinor = data.DisplayUnit == FrameNodeLevel.Minute ? currMinor.AddSeconds(1) : currMinor.AddMinutes(1);
}
}
MinorTickLevel = FrameNodeLevel.Minute;
break;
default:
throw new ArgumentOutOfRangeException("axisMajorLevel");
}
//generate major axis
if (MajorOffsets.Count > 0)
{
_majorTick = new Vector2[MajorOffsets.Count * 2];
_majorGrid = new Vector2[MajorOffsets.Count * 2];
for (int k = 0; k < MajorOffsets.Count; k++)
{
_majorTick[k * 2] = new Vector2(MajorOffsets[k], 0);
_majorGrid[k * 2] = new Vector2(MajorOffsets[k], 0);
_majorTick[k * 2 + 1] = new Vector2(MajorOffsets[k], -CanvasManager.TickSize * 2 * CanvasManager.PixelSize.X);
_majorGrid[k * 2 + 1] = new Vector2(MajorOffsets[k], 2);
}
_tickMajorBuffer.BindData(_majorTick);
_gridMajorBuffer.BindData(_majorGrid);
}
else
{
_majorTick = null;
}
//generate minor axis if possible
if (MinorOffsets.Count > 0)
{
_minorTick = new Vector2[MinorOffsets.Count * 2];
_minorGrid = new Vector2[MinorOffsets.Count * 2];
for (int k = 0; k < MinorOffsets.Count; k++)
{
_minorTick[k * 2] = new Vector2(MinorOffsets[k], 0);
_minorGrid[k * 2] = new Vector2(MinorOffsets[k], 0);
_minorTick[k * 2 + 1] = new Vector2(MinorOffsets[k],
-(CanvasManager.TickSize * 2) * MinorTickScale * CanvasManager.PixelSize.X);
_minorGrid[k * 2 + 1] = new Vector2(MinorOffsets[k], 2);
}
_tickMinorBuffer.BindData(_minorTick);
_gridMinorBuffer.BindData(_minorGrid);
}
else
{
_minorTick = null;
}
}