/// <summary>
/// Create new vector from two distance values
/// </summary>
/// <param name="x">X value</param>
/// <param name="y">Y value</param>
/// <param name="width">Width value</param>
/// <param name="height">Height value</param>
public Rectangle2f(DistanceF x, DistanceF y, DistanceF width, DistanceF height)
{
this.x = x.NativeValue;
this.y = y.GetIn(x.NativeUnit);
this.w = width.GetIn(x.NativeUnit);
this.h = height.GetIn(x.NativeUnit);
this.unit = x.NativeUnit;
}
static void Main(string[] args)
{
// new distance in meters
DistanceF a = new DistanceF(10, Unit.Meters);
// new distance in centimeters
DistanceF b = new DistanceF(5, Unit.Centimeters);
// new distance in inches
DistanceF c = new DistanceF(14, Unit.Inches);
// new distance in feet
DistanceF d = new DistanceF(1.5f, Unit.Feet);
// sum of them (all converted automatically)
DistanceF sum = a + b + c + d;
Console.WriteLine("Sum of " + a + ", " + b + ", " + c + ", " + d + " equals " + sum);
// get distance converted to millimeters
DistanceF mm = sum.Converted(Unit.Millimeters);
// get distance as float
float distanceAsFloat = mm.Decimeters;
Console.WriteLine(mm + " in decimeters is equal to " + distanceAsFloat);
// get distance as pixels (you need to specify dpi (dots per inch))
int pixels = (int)b.Pixels(92);
Console.WriteLine(b + " is " + pixels + " pixels on 92 dpi monitor");
// create distance from pixels
DistanceF distanceFromPixels = DistanceF.FromPixels(1024, 92);
Console.WriteLine("Screen width is " + distanceFromPixels + " on 1024px wide 92dpi display");
// compare distances
if (a > b)
{
Console.WriteLine(a + " is more than " + b);
}
// compare distances
if (b <= c)
{
Console.WriteLine(b + " is less or equal to " + c);
}
// create vectors from distances
Vector2f v1 = new Vector2f(a, b);
Vector2f v2 = new Vector2f(b, c);
Vector2f v3 = new Vector2f(c, d);
// sum of vectors
Vector2f vSum = v1 + v2;
Console.WriteLine("(Vector " + v1 + ") + (Vector " + v2 + ") equals (Vector " + vSum + ")");
// subtract vectors
Vector2f vSub = v3 - v2;
Console.WriteLine("(Vector " + v3 + ") - (Vector " + v2 + ") equals Vector (" + vSub + ")");
// calculate dot product of two vectors
float vDot = v2 * v3;
Console.WriteLine("(Vector " + v2 + ") dot (Vector " + v3 + ") equals " + vDot);
// find vector which is perpendicular to v1
Vector2f vPerp = v1.Perpendicular;
Console.WriteLine("(Vector " + v1 + ") is perpendicular to (Vector " + vPerp + ")");
// Create rectangle in eal units
Rectangle2f rect = new Rectangle2f(10, 15, 90, 80, Unit.Millimeters);
// Crop rectangle top and right margins by 1 cm
Rectangle2f rectCropped = rect.Cropped(DistanceF.Zero, new DistanceF(1, Unit.Centimeters), new DistanceF(1, Unit.Centimeters), DistanceF.Zero);
Console.WriteLine("(Rectangle " + rect + ") with top and right cm cropped is equal to (Rectangle " + rectCropped + ")");
Console.ReadKey();
}
/// <summary>
/// Return cropped rectangle by specified amounts from all sides
/// </summary>
/// <param name="left">How much to crop from left</param>
/// <param name="right">How much to crop from right</param>
/// <param name="top">How much to crop from top</param>
/// <param name="bottom">How much to crop from bottom</param>
/// <returns>New cropped rectangle</returns>
public Rectangle2f Cropped(DistanceF left, DistanceF right, DistanceF top, DistanceF bottom)
{
float l = left.GetIn(unit);
float t = top.GetIn(unit);
return new Rectangle2f(x + l, y + t, w - l - right.GetIn(unit), h - t - bottom.GetIn(unit), unit);
}
/// <summary>
/// Create new vector from two distance values
/// </summary>
/// <param name="x">X value</param>
/// <param name="y">Y value</param>
public Vector2f(DistanceF x, DistanceF y)
{
this.x = x.NativeValue;
this.y = y.GetIn(x.NativeUnit);
this.unit = x.NativeUnit;
}
/// <summary>
/// Returns scaled vector which maches specified length
/// </summary>
/// <param name="newLength">New vector length</param>
/// <returns>New vector of specified length</returns>
public Vector2f Scaled(DistanceF newLength)
{
float scale = newLength.GetIn(unit) / NativeLength;
return this * scale;
}
/// <summary>
/// Scales vector to match specified length
/// </summary>
/// <param name="newLength">New vector length</param>
public void Scale(DistanceF newLength)
{
float scale = newLength.GetIn(unit) / NativeLength;
x *= scale;
y *= scale;
}
