private void OnTimerTick(object sender, EventArgs e)
{
for (; m_HeatZones.Count < 50;)
{
int x = 0;
int y = 0;
switch (m_Rand.Next(4))
{
case 0:
// left
x = -(int)m_MaxTemperature / 2 + 1;
y = m_Rand.Next(m_SizeY);
break;
case 1:
// top
x = m_Rand.Next(m_SizeX);
y = -(int)m_MaxTemperature / 2 + 1;
break;
case 2:
// right
x = m_SizeX - (int)m_MaxTemperature / 2 - 1;
y = m_Rand.Next(m_SizeY);
break;
case 3:
// bottom
x = m_Rand.Next(m_SizeX);
y = +(int)m_MaxTemperature / 2 - 1;
break;
}
// if no more heat zones -> create new ones
NHeatZone heatZone = new NHeatZone(x, y, m_MaxTemperature);
do
{
heatZone.m_DX = m_Rand.Next(4) - 2;
heatZone.m_DY = m_Rand.Next(4) - 2;
}while (heatZone.m_DX == 0 && heatZone.m_DY == 0);
m_HeatZones.Add(heatZone);
}
// gets the values
m_HeatMap.Data.SetValues(double.NaN);
double[] values = m_HeatMap.Data.Values;
for (int i = m_HeatZones.Count - 1; i >= 0; i--)
{
NHeatZone heatZone = m_HeatZones[i];
int radius = heatZone.m_Radius;
// move the heat zone
heatZone.m_X += heatZone.m_DX;
heatZone.m_Y += heatZone.m_DY;
bool removeZone = false;
if (heatZone.m_X < -radius)
{
removeZone = true;
}
else if (heatZone.m_X >= m_SizeX + radius)
{
removeZone = true;
}
if (heatZone.m_Y < -radius)
{
removeZone = true;
}
else if (heatZone.m_Y >= m_SizeX + radius)
{
removeZone = true;
}
if (removeZone)
{
m_HeatZones.RemoveAt(i);
continue;
}
int centerX = heatZone.m_X;
int centerY = heatZone.m_Y;
int startX = Math.Max(0, centerX - radius);
int startY = Math.Max(0, centerY - radius);
int endX = Math.Min(m_SizeX - 1, centerX + radius);
int endY = Math.Min(m_SizeY - 1, centerY + radius);
for (int x = startX; x <= endX; x++)
{
for (int y = startY; y <= endY; y++)
{
double value = heatZone.m_Temperature - 2 * Math.Sqrt(Math.Pow(x - centerX, 2) + Math.Pow(y - centerY, 2));
if (value >= 0)
{
int index = y * m_SizeX + x;
double curValue = values[index];
if (double.IsNaN(curValue))
{
values[index] = value;
}
else
{
curValue += value;
if (curValue > m_MaxTemperature)
{
curValue = m_MaxTemperature;
}
values[index] = curValue;
}
}
}
}
}
m_HeatMap.Data.OnDataChanged();
nChartControl1.Refresh();
}
private void CreateDymmyData(NHeatMapSeries heatMap)
{
Random rand = new Random();
List <NHeatZone> heatZones = new List <NHeatZone>();
double maxTemperature = 70;
while (heatZones.Count < 50)
{
int x = 0;
int y = 0;
switch (rand.Next(4))
{
case 0:
// left
x = -(int)maxTemperature / 2 + 1;
y = rand.Next(m_SizeY);
break;
case 1:
// top
x = rand.Next(m_SizeX);
y = -(int)maxTemperature / 2 + 1;
break;
case 2:
// right
x = m_SizeX - (int)maxTemperature / 2 - 1;
y = rand.Next(m_SizeY);
break;
case 3:
// bottom
x = rand.Next(m_SizeX);
y = +(int)maxTemperature / 2 - 1;
break;
}
// if no more heat zones -> create new ones
NHeatZone heatZone = new NHeatZone(x, y, maxTemperature);
do
{
heatZone.m_DX = rand.Next(4) - 2;
heatZone.m_DY = rand.Next(4) - 2;
}while (heatZone.m_DX == 0 && heatZone.m_DY == 0);
heatZones.Add(heatZone);
}
// gets the values
heatMap.Data.SetValues(double.NaN);
double[] values = heatMap.Data.Values;
for (int i = heatZones.Count - 1; i >= 0; i--)
{
NHeatZone heatZone = heatZones[i];
int radius = heatZone.m_Radius;
// move the heat zone
heatZone.m_X += heatZone.m_DX;
heatZone.m_Y += heatZone.m_DY;
bool removeZone = false;
if (heatZone.m_X < -radius)
{
removeZone = true;
}
else if (heatZone.m_X >= m_SizeX + radius)
{
removeZone = true;
}
if (heatZone.m_Y < -radius)
{
removeZone = true;
}
else if (heatZone.m_Y >= m_SizeX + radius)
{
removeZone = true;
}
if (removeZone)
{
heatZones.RemoveAt(i);
}
else
{
int centerX = heatZone.m_X;
int centerY = heatZone.m_Y;
int startX = Math.Max(0, centerX - radius);
int startY = Math.Max(0, centerY - radius);
int endX = Math.Min(m_SizeX - 1, centerX + radius);
int endY = Math.Min(m_SizeY - 1, centerY + radius);
for (int x = startX; x <= endX; x++)
{
for (int y = startY; y <= endY; y++)
{
double value = heatZone.m_Temperature - 2 * Math.Sqrt(Math.Pow(x - centerX, 2) + Math.Pow(y - centerY, 2));
if (value >= 0)
{
int index = y * m_SizeX + x;
double curValue = values[index];
if (double.IsNaN(curValue))
{
values[index] = value;
}
else
{
curValue += value;
if (curValue > maxTemperature)
{
curValue = maxTemperature;
}
values[index] = curValue;
}
}
}
}
}
}
heatMap.Data.OnDataChanged();
}
