entering values in array

[NileshSutar]

Hi all,

i want to create an array that contains pixel colours. I want to scan a client area for all the colors it contains and enter all the colors  found(excluding duplicates) in an array called  $get_pix.color.So how can i do that??

Edited September 23, 2013 by NileshSutar

[JohnOne]

You cannot have a "." in a variable name.

They are used as operators in objects.

Show what code you have.

[NileshSutar]

You cannot have a "." in a variable name.

They are used as operators in objects.

Show what code you have

The code is :

Func start_capture()
   For $i=$x1 To $x2 Step 1
      For $j=$y1 To $y2 Step 1
         For $s=0 To <??> Step 1; Don't know how many pixels will be  there. What to do?
             $pixel[$s] = PixelGetColor($i,$j,2)
         Next
      Next
   Next
EndFunc

[JohnOne]

The area tou are working on should give you the size of the array you need.

If the area width is 100 and height is 100, then you need 10000 elements.

[NileshSutar]

 

The code is :

now i have modified it:

global $Area=($x2-$x1)*($y2-$y1)
global $x1
global $x2
global $y1
global $y2
Func start_capture()
   For $i=$x1 To $x2 Step 1
      For $j=$y1 To $y2 Step 1
         For $s=0 To $Area Step 1; Don't know how many pixels will be  there. What to do?
             $pixel[$s] = PixelGetColor($i,$j,2)
         Next
      Next
   Next
EndFunc

[JohnOne]

Why not use a 2D array, for example...

#include <Array.au3>

$Width = 10
$Height = 10
$StartX = 0
$StartY = 0

Local $aPixels[$Height][$Width]

For $y = $StartY To $Height -1
    For $x = $StartX To $Width -1
        $aPixels[$y][$x] = "0x" & Hex(PixelGetColor($x,$y),6)
    Next
Next

_ArrayDisplay($aPixels) 

To make it more generic you need to apply a little maths logic.

Edited September 23, 2013 by JohnOne

[NileshSutar]

Why not use a 2D array, for example...

#include <Array.au3>

$Width = 10
$Height = 10
$StartX = 0
$StartY = 0

Local $aPixels[$Height][$Width]

For $y = $StartY To $Height -1
    For $x = $StartX To $Width -1
        $aPixels[$y][$x] = "0x" & Hex(PixelGetColor($x,$y),6)
    Next
Next

_ArrayDisplay($aPixels) 

To make it more generic you need to apply a little maths logic.

i tested the code.I found that the coordinates $StartX and  $StartY must be zero for the script to run.Otherwise it will not five results.I figured out why this is happening but i am unable to change the code.So the $y and $x values are not zero when i set $StartX and $StartY to some non-zero.So as they are input to the pixel array the array is getting confused.We should some how set $y=0 and increament its value without affecting PixelGetColor($x,$y).

[JohnOne]

Like I said, a little maths logic is all it takes.

The start x and y can be whatever you want so long as you as add to it the width and height.

[NileshSutar]

 

The start x and y can be whatever you want so long as you as add to it the width and height.

For $y = $StartY To $Height -1
      For $x = $StartX To $Width -1
         For $i=0 To ($Width-$StartX+1)*($Height-$StartY+1)  +1 
            $aPixels[$i] = ("0x" & Hex(PixelGetColor($x,$y))
         Next
     Next
     
   Next

I have made it like that but it is giving me an error "Array variable has incorrect number of subscripts or subscript dimension range exceeded"

[JohnOne]

Look at the for loop, if start y is 300 and height is 20, the loop will be going from 300 to 20.

Hint

For $y = $StartY To ? + $Height -1

EDIT:

Apply reverse logic to your array.

Edited September 23, 2013 by JohnOne

[NileshSutar]

Look at the for loop, if start y is 300 and height is 20, the loop will be going from 300 to 20.

Hint

For $y = $StartY To ? + $Height -1

EDIT:

Apply reverse logic to your array.

For $y = $StartY To $StartY + $Height -1;is it right

Edited September 23, 2013 by NileshSutar

[NileshSutar]

John i think that the thing that is going wrong is the

$aPixels[$y][$x] = "0x" & Hex(PixelGetColor($x,$y),6)

When $y and $x are zero then there is no problem for $aPixels to take values in.But when $y and $x are non-zero the first element   should get 0 index(in array $aPixels) will be told to take $y index which is not zero. I think this is a big problem.

Edited September 23, 2013 by NileshSutar

[JohnOne]

Off top of my head it'd be something like this

#include <Array.au3>

$Width = 10
$Height = 10
$StartX = 0
$StartY = 0

Local $aPixels[$Height][$Width]

For $y = $StartY To $StartY + $Height -1
    For $x = $StartX To $StartX + $Width -1
        $aPixels[$y - $StartY][$x - $StartX] = "0x" & Hex(PixelGetColor($x,$y),6)
    Next
Next

_ArrayDisplay($aPixels)

[NileshSutar]

 

Off top of my head it'd be something like this

#include <Array.au3>

$Width = 10
$Height = 10
$StartX = 0
$StartY = 0

Local $aPixels[$Height][$Width]

For $y = $StartY To $StartY + $Height -1
    For $x = $StartX To $StartX + $Width -1
        $aPixels[$y - $StartY][$x - $StartX] = "0x" & Hex(PixelGetColor($x,$y),6)
    Next
Next

_ArrayDisplay($aPixels)

lol working.

[JohnOne]

Ace.

Just pop in a function now and use those non scoped vars as parameters.

[NileshSutar]

Ace.

Just pop in a function now and use those non scoped vars as parameters.

Yes i did it.VERRY HAPPY.

THANKS.