History of set_edge_mode

== Syntax ==

int set_edge_mode(int mode)

== Arguments ==

:mode

::Set to 0 for a repeating edge, 1 for a black border around the image, 2 to wrap around the edges of the image to the other side, 3 to mirror the edges of the image.

== Return ==

False / zero if the mode value is out of range (less than 0 or greater than 4). True otherwise.

== Description ==

Sets how the plug-in should behave when accessing pixels beyond the edges of the image (ie whether the plug-in should show those pixels as black, mirror the edge, or wrap around to the other side of the image).

== Example ==

<code>

%ffp

ctl(0): "Edge Mode", Range=(0,3), val=0

ctl(1): "Image Offset", Range=(0,100), val=30

ForEveryTile:{

int r, g, b, offset;

set_edge_mode( ctl(0) );

offset = ctl(1);

for (y= y_start; y < y_end; y++) {

if (updateProgress(y, y_end)) abort();

for (x = x_start; x < x_end; x++) {

r = src(x-offset, y-offset, 0);

g = src(x-offset, y-offset, 1);

b = src(x-offset, y-offset, 2);

pset( x, y, 0, r );

pset( x, y, 1, g );

pset( x, y, 2, b );

}

}

return true;

</code>

== See Also ==

src, pget