public static LineModel CalculateLineFromPointAndDirection(PointModel point, double direction)
{
double yAxisAngle;
int quadrant;
if (direction < 90)
{
yAxisAngle = direction;
quadrant = 1;
}
else if (direction < 180)
{
yAxisAngle = 180 - direction;
quadrant = 2;
}
else if (direction < 270)
{
yAxisAngle = direction - 180;
quadrant = 3;
}
else
{
yAxisAngle = 360 - direction;
quadrant = 4;
}
var sin = MathOperation.Sin(yAxisAngle);
var cos = MathOperation.Cos(yAxisAngle);
var toNextPointLength = 100;
//var nextPointX = sin * toNextPointLength + point.x;
//var nextPointY = cos * toNextPointLength + point.y;
double nextPointX, nextPointY;
if (quadrant == 1 || quadrant == 2)
{
nextPointX = sin * toNextPointLength + point.x;
}
else
{
nextPointX = point.x - sin * toNextPointLength;
}
if (quadrant == 1 || quadrant == 4)
{
nextPointY = cos * toNextPointLength + point.y;
}
else
{
nextPointY = point.y - cos * toNextPointLength;
}
var nextPoint = new PointModel(nextPointX, nextPointY);
var line = CalculateLineFromTwoPoint(point, nextPoint);
return(line);
}
public static void CalculateTargetObservationPos(TextBox targetDirectionText, TextBox subDirectionText, TextBox observationHeightText, TextBox targetHeightText, ref TextBox distanceText, ref TextBox observationDateText, ref TextBox targetPositionText, bool updateObservationDate = true)
{
if (updateObservationDate)
{
observationDateText.Text = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
}
if (string.IsNullOrEmpty(targetHeightText.Text) || string.IsNullOrEmpty(observationHeightText.Text))
{
return;
}
double targetHeight, observationHeight = 0;
try
{
targetHeight = Convert.ToDouble(targetHeightText.Text);
observationHeight = Convert.ToDouble(observationHeightText.Text);
}
catch
{
MessageBox.Show("invalid number: " + targetHeightText.Text + ", " + observationHeightText.Height);
return;
}
var distance = Math.Round(targetHeight / observationHeight * 400.00, 2);
distanceText.Text = distance.ToString();
if (string.IsNullOrEmpty(targetDirectionText.Text) || string.IsNullOrEmpty(subDirectionText.Text))
{
return;
}
double targetDirection = 0, subDirection = 0;
try
{
targetDirection = Convert.ToDouble(targetDirectionText.Text);
subDirection = Convert.ToDouble(subDirectionText.Text);
}
catch
{
MessageBox.Show("invalid number: " + targetDirectionText.Text + ", " + subDirectionText.Text);
}
var actualDirection = DirectionOperation.CalculateSubActualDirection(subDirection, targetDirection);
double xAxisAngle;
int quadrantIndex;
if (actualDirection < 90)
{
xAxisAngle = 90 - actualDirection;
quadrantIndex = 1;
}
else if (actualDirection < 180)
{
xAxisAngle = actualDirection - 90;
quadrantIndex = 2;
}
else if (actualDirection < 270)
{
xAxisAngle = 270 - actualDirection;
quadrantIndex = 3;
}
else
{
xAxisAngle = actualDirection - 270;
quadrantIndex = 4;
}
var cos = MathOperation.Cos(xAxisAngle);
var sin = MathOperation.Sin(xAxisAngle);
var x = cos * distance;
var y = sin * distance;
if (quadrantIndex == 2)
{
y = -1 * y;
}
if (quadrantIndex == 3)
{
y = -1 * y;
x = -1 * x;
}
if (quadrantIndex == 4)
{
x = -1 * x;
}
var point = new PointModel(x, y);
targetPositionText.Text = point.ToString();
}
