public Vector2i ToPixelPosition(Vector2f canvasPosition)
{
Vector2f v = Vector2f.ComponentDivision(canvasPosition, root.unitSize);
v = Vector2f.ComponentMultiply(v, new Vector2f(root.viewport.Dimensions.X, root.viewport.Dimensions.Y));
return(new Vector2i((int)(v.X + 0.5f), (int)(v.Y + 0.5f)));
}
/// <summary>
/// Calculates width of border.
/// </summary>
/// <param name="canvas"></param>
/// <returns></returns>
public float CalculateWidth(ICanvasInfo canvas)
{
Vector2i ps = canvas.CanvasPixelSize;
Vector2f t = Vector2f.ComponentDivision(canvas.CanvasUnitSize, new Vector2f(ps.X, ps.Y));
return(widthInCanvas + widthInPixels * (t.X > t.Y ? t.X : t.Y));
}
public SharpMedia.Math.Vector2f[] Generate(object shape, Vector2f[] positions)
{
// Maps positions. First find min and max (bounding box)
Vector2f max = new Vector2f(float.NegativeInfinity, float.NegativeInfinity);
Vector2f min = new Vector2f(float.PositiveInfinity, float.PositiveInfinity);
for (int i = 0; i < positions.Length; i++)
{
Vector2f v = positions[i];
max.X = max.X > v.X ? max.X : v.X;
max.Y = max.Y > v.Y ? max.Y : v.Y;
min.X = min.X < v.X ? min.X : v.X;
min.Y = min.Y < v.Y ? min.Y : v.Y;
}
// We now remap uniformy based on the box to range [0,1]x[0,1].
Vector2f diff = max - min;
for (int i = 0; i < positions.Length; i++)
{
positions[i] = Vector2f.ComponentDivision(positions[i] - min, diff);
}
return(positions);
}
/// <summary>
/// Converts pixel coordinates to canvas coordinates.
/// </summary>
/// <param name="canvas"></param>
/// <param name="pixel"></param>
/// <returns></returns>
public static Vector2f PixelToCanvas(ICanvas canvas, Vector2f pixel)
{
Vector2i ps = canvas.CanvasPixelSize;
return(Vector2f.ComponentDivision(
Vector2f.ComponentMultiply(pixel, canvas.CanvasUnitSize),
new Vector2f(ps.X, ps.Y)));
}
public Vector2i ToPixelPosition(Vector3f position)
{
// We first convert to [0,1] space.
Vector2f uniformSpacePosition = Vector2f.ComponentDivision(position.Vec2, unitSize);
return(new Vector2i((int)((float)pixelSize.X * uniformSpacePosition.X + 0.5f),
(int)((float)pixelSize.Y * uniformSpacePosition.Y + 0.5f)));
}
public Vector2f ToCanvasPosition(Vector2i pixelPosition)
{
Vector2f v = Vector2f.ComponentDivision(
new Vector2f((float)pixelPosition.X, (float)pixelPosition.Y),
new Vector2f((float)root.viewport.Width, (float)root.viewport.Height));
return(Vector2f.ComponentMultiply(v, root.unitSize));
}
/// <summary>
/// Calculates mouse sensitivity.
/// </summary>
/// <param name="canvas"></param>
/// <returns></returns>
public Vector2f CalcMouseSensitivity(ICanvas canvas)
{
Vector2i ps = canvas.CanvasPixelSize;
return(mouseSensitivity.CanvasCoordinates +
Vector2f.ComponentDivision(Vector2f.ComponentMultiply(mouseSensitivity.PixelCoordinates,
canvas.CanvasUnitSize), new Vector2f(ps.X, ps.Y)));
}
public Vector2f[] Generate(object shape, Vector2f[] positions)
{
Vector2f dif = region.Dimensions;
// We clamp at border.
for (int i = 0; i < positions.Length; i++)
{
positions[i] = Vector2f.ComponentDivision(positions[i] - region.LeftBottom, dif);
}
// We return "transformed" positions as result.
return(positions);
}
/// <summary>
/// The lines are perpBicular.
/// </summary>
/// <param name="other">The other line.</param>
/// <returns>Are lines perpBicular.</returns>
public bool IsPerpendicular([NotNull] Line2f other)
{
Vector2f special;
//#ifdef 2D
special = new Vector2f((float)-1, (float)-1);
//#endif
return(Vector2f.NearEqual(Direction,
Vector2f.ComponentDivision(
special, Direction)));
}
