imdrawline {imageUtilities} | R Documentation |
Draw a line from point a to point b on an image
imdrawline(img, x1, y1, x2, y2, col, one.based = TRUE, max = imageUtilities.option("max"))
img |
image to draw on |
x1 |
column to start the line |
y1 |
row to start the line |
x2 |
column to end the line |
y2 |
row to end the line |
col |
colour to draw with |
one.based |
boolean, whether x1, x2, y1, and y2 are 1-based |
max |
the maximum intensity of the image |
the image with the line from x1,x2 to y1,y2 on it (inclusive).
if col
is supplied in vector form and has any
elements greater than 1, *and* max is greater than 1,
then we will assume that col
scales from 0 to 255.
imdrawabline
for a y=ax+b image
Other draw: drawImage
,
imdisp
, imdrawabline
,
plotPoints
, pointPicker
Other sandbox: imdrawabline