I have the following cases where rectangles overlap.
I have the coordinates for the intersection rectangle(Blue). How can i offset the starting coordinates(top-left X-Y) of the 2 rectangles to prevent overlapping,provided that i have the coordinates of the intersection rectangle using
rectangle3 = Rectangle.Intersect(rectangle1, rectangle2);
UPDATE:
As per @MBo 's Update i have added the following code
Blue = Rectangle.Intersect(First, Second);
if (Blue != Rectangle.Empty)
{
if (First.Right == Blue.Right)
{
imgpoint.X += (Blue.Right - Blue.Left);
}
if (First.Bottom == Blue.Bottom)
{
imgpoint.Y += (Blue.Bottom - Blue.Top);
}
if (First.Left == Blue.Left)
{
imgpoint.X-= (Blue.Right - Blue.Left);
}
if (First.Top == Blue.Top)
{
imgpoint.Y -= (Blue.Bottom - Blue.Top);
}
}
UPDATE2:
As per @MBo 's Logic i implemented the code above.This works in most cases.But in some images even when the intesection is detected and the offset is added i get overlapping.See the sample image below.
The actual problem i'm trying to solve is linked to these 2 questions Translating a Point(X,Y) for Images of Different Sizes from a Custom PictureBox Control
Performing Overlap Detection of 2 Bitmaps
Please advice.
UPDATE:
UPDATE:
As per your update i have translated the Delphi code to C#
Blue = Rectangle.Intersect(First, Second);
if (Blue != Rectangle.Empty)
{
int dcy,dcx;
int dy,dx;
int fl=First.Left,fw=First.Width,fh=First.Height,ft=First.Top,fb=First.Bottom,fr=First.Right;
int sl=Second.Left,sr=Second.Right,st=Second.Top,sb=Second.Bottom,sw=Second.Width,sh=Second.Height;
dcy = (sb + st) - (fb + ft); //doubled center y-difference
dcx = (sl + sr) - (fl + fr);
if ((int)(dcx) >= (fw + sw) || ((int)(dcy) >= (fh + sh)))
{//no intersection
}
else
{
dx = fw + sw - (int)dcx; //doubled needed x-shift absolute value
dy = fh + sh - (int)dcy;
if (dx > dy)
{
if (dcy < 0)
{
dy = - dy/2;
}
else
{
dy = dy/ 2; //needed y-shift accounting for direction
}
dx = 0;
}
else
{
if (dcy < 0)
{
dx = - dx/ 2;
}
else
{
dx = dx/2;
dy = 0;
}
}
imgpoint.X+=dx;
imgpoint.Y+=dy;
}
}
While using this code the Second Image gets moved too far in some cases.Please let me know if the code is right.
