public int Compare(object o1, object o2)
{
DataPoint3D dataPoint3D = (DataPoint3D)o1;
DataPoint3D dataPoint3D2 = (DataPoint3D)o2;
int num = 0;
if (dataPoint3D.xPosition < dataPoint3D2.xPosition)
{
num = -1;
}
else if (dataPoint3D.xPosition > dataPoint3D2.xPosition)
{
num = 1;
}
else
{
if (dataPoint3D.yPosition < dataPoint3D2.yPosition)
{
num = 1;
}
else if (dataPoint3D.yPosition > dataPoint3D2.yPosition)
{
num = -1;
}
if (!float.IsNaN(areaProjectionCenter.Y))
{
double num2 = Math.Min(dataPoint3D.yPosition, dataPoint3D.height);
double num3 = Math.Max(dataPoint3D.yPosition, dataPoint3D.height);
double num4 = Math.Min(dataPoint3D2.yPosition, dataPoint3D2.height);
double num5 = Math.Max(dataPoint3D2.yPosition, dataPoint3D2.height);
if (!area.IsBottomSceneWallVisible())
{
num = ((num3 >= (double)areaProjectionCenter.Y && num5 >= (double)areaProjectionCenter.Y) ? num : ((num3 >= (double)areaProjectionCenter.Y) ? 1 : (num * -1)));
}
else if (num2 <= (double)areaProjectionCenter.Y && num4 <= (double)areaProjectionCenter.Y)
{
num *= -1;
}
else if (num2 <= (double)areaProjectionCenter.Y)
{
num = 1;
}
}
else if (!area.IsBottomSceneWallVisible())
{
num *= -1;
}
}
if (dataPoint3D.xPosition != dataPoint3D2.xPosition)
{
if (!float.IsNaN(areaProjectionCenter.X))
{
if (dataPoint3D.xPosition + dataPoint3D.width / 2.0 >= (double)areaProjectionCenter.X && dataPoint3D2.xPosition + dataPoint3D2.width / 2.0 >= (double)areaProjectionCenter.X)
{
num *= -1;
}
}
else if (area.DrawPointsInReverseOrder())
{
num *= -1;
}
}
if (!selection)
{
return(num);
}
return(-num);
}