9.5.2

1096 • CHAPTER 22
XPRESSO EDITOR • 1097
This node reads the color values for bitmaps at specic coordinates. The image above represents a
RGB color value (in the Result node) at the coordinates 120, 100. The bitmap has a resolution of 640
x 480.
Input Ports
File Name
Dene the absolute path to the Bitmap
X/Y
X and Y are the coordinates of the pixels whose color values should be read. X and Y values of 0 and
0 would represent the top left pixel of the bitmap.
Output Ports
Color
Outputs the RGB values of the color at the X and Y coordinates in vector format.
Height/Width
Displays the height and width of the bitmap
ObjectIndex
The reason why the ObjectIndex node exists is because when you are using iterators, you cannot
directly nd out the index, i.e. which part of the loop the iterator is currently at. The ObjectIndex
mode allows you to nd out the index, thus enabling you to, say, single out a specic element within
the iteration loop.
Connect the Instance output port of the iterator to the Instance input port of the ObjectIndex node.