Graphics.FillRectangle problem

Hello everyone!

The following source-code is working but not in the way i want and I can't figure it out why.

This is my code:

Declaration

Code:

Dim sfondoImg As Bitmap = New Bitmap(PictureBox1.Width, PictureBox1.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb)
Dim G As Graphics = Graphics.FromImage(sfondoImg)

Usage

Code:

G.FillRectangle(Calc_arrayB(i), x * (k + 1), y * (k + 1), k, k)

This is what I get

Why there are those white spaces between every rectangle?
They must be automatic because the coords x-y of each rectangle are correct, no offsets added.

Any ideas? Thanks.

Originally Posted by Sixx93

Nope, the spaces aren't added automatically.

G.FillRectangle(Calc_arrayB(i), x * (k + 1), y * (k + 1), k, k)

is wrong.

First 2 loops would result in:
round 1:
x = 0, y = 0, k = 10 (assume 10 for 'box size' -- 'k' doesn't change inside function, so doesn't really matter?)

0 * (k+1), 0 * (k+1)

x=0, y=0 == first grid location (starting at top-left). ok.

round 2:
x = 1, y = 0, k = 10

1 * (k+1), 0*(k+1) //Scanning left-right, then top-down.

1* (11)

x = 11. not ok.

our first box's x position was at 0, our next one is at 11..if each box is '10 in size' it should be 0 to 9, with the next one starting at 10; but it starts at 11 - the equation is wrong.

edit: looks like simply x * k would work to calculate the x pos. of each 'box'.

G.FillRectangle(Calc_arrayB(i), x * k, ****, k, k)

x=0,y=0,k=10;

0 * k = 0

next loop
1 * k = 10 //ok
next loop:
2 * k = 20

box 1 goes from 0 to 9, box 2 goes from 10 to 19, bot 3 goes from 20 to 29. Seems to follow the pattern.
I'm sure the yPosition is a similar story.

Originally Posted by abuckau907

Nope, the spaces aren't added automatically.

is wrong.

First 2 loops would result in:
round 1:
x = 0, y = 0, k = 10 (assume 10 for 'box size' -- 'k' doesn't change inside function, so doesn't really matter?)

0 * (k+1), 0 * (k+1)

x=0, y=0 == first grid location (starting at top-left). ok.

round 2:
x = 1, y = 0, k = 10

1 * (k+1), 0*(k+1) //Scanning left-right, then top-down.

1* (11)

x = 11. not ok.

our first box's x position was at 0, our next one is at 11..if each box is '10 in size' it should be 0 to 9, with the next one starting at 10; but it starts at 11 - the equation is wrong.

edit: looks like simply x * k would work to calculate the x pos. of each 'box'.

G.FillRectangle(Calc_arrayB(i), x * k, ****, k, k)

x=0,y=0,k=10;

0 * k = 0

next loop
1 * k = 10 //ok
next loop:
2 * k = 20

box 1 goes from 0 to 9, box 2 goes from 10 to 19, bot 3 goes from 20 to 29. Seems to follow the pattern.
I'm sure the yPosition is a similar story.

Thanks for the answer, I'm testing it right now. I'll post back the result.

Edit:
Yes, you're right. It works.

I thought it was right to use x/y * (k+1). I had the idea while I was at school then, when I arrived at home I wrote the code without ask my self if it was right xD

/req close

Graphics.FillRectangle problem

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