private float[] GetHeightLevelBorders(HeightLevelType levelType)
{
float[] borders = new float[2];
if (levelType != HeightLevelType.UNDEFINED)
{
List <HeightLevel> levels = areaCalculator.GetHeightLevels();
borders[0] = levels.Where(a => a.type == levelType).FirstOrDefault().lowerBorder;
borders[1] = levels.Where(a => a.type == levelType).FirstOrDefault().upperBorder;
}
return(borders);
}