CODEWITHSUNDEEP
c#winformsgraphics
Adrao
Adrao

Reputation: 510

Divide and draw multiple rectangle

I have a rectangle like this Rectangle Rect = new Rectangle(0, 0, 300, 200); and i want to divide it equaly in 20 rectangles 5X4 (5 Columns, 4 Rows) like this

|'''|'''|'''|'''|'''|
|...|...|...|...|...|
|'''|'''|'''|'''|'''|
|...|...|...|...|...|
|'''|'''|'''|'''|'''|
|...|...|...|...|...|
|'''|'''|'''|'''|'''|
|...|...|...|...|...|

Cn anyone help? Ive been trying solve this for like an hour :(

Upvotes: 0

Views: 437

Answers (2)

TaW
TaW

Reputation: 54453

This should help:

Given your rectangle:

    Rectangle Rect = new Rectangle(0, 0, 300, 200);

This will get a list of subrectangles:

    List<RectangleF> GetSubRectangles(Rectangle rect, int cols, int rows)
    {
        List<RectangleF> srex = new List<RectangleF>();
        float w = 1f * rect.Width / cols;
        float h = 1f * rect.Height / rows;

        for (int c = 0; c < cols; c++)
            for (int r = 0; r < rows; r++)
                srex.Add(new RectangleF(w*c, h*r, w,h ));
        return srex;
    }

Note that is returns RectangleF not Rectangle to avoid loss of precision. When you need a Rectangle you can always get one like this:

 Rectangle rec = Rectangle.Round(srex[someIndex]);

Upvotes: 1

diiN__________
diiN__________

Reputation: 7666

To create a list of 20 rectangles (like you want it) you could use this:

List<Rectangle> list = new List<Rectangle>();
int maxWidth = 300;
int maxHeight = 200;
int x = 0;
int y = 0;
while (list.Count < 20)
{
    for (x = 0; x < maxWidth; x += (maxWidth / 5))
    {
        for (y = 0; y < maxHeight; y += (maxHeight / 4))
        {
            list.Add(new Rectangle(x, y, (maxWidth / 5), (maxHeight / 4));
        }
        y = 0;
    }
    x = 0;
}

Upvotes: 2

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