130
edits
Education/Projects/ProcessingForTheWeb/PImage.get: Difference between revisions
Education/Projects/ProcessingForTheWeb/PImage.get (view source)
Revision as of 01:38, 28 November 2009
, 28 November 2009no edit summary
(→Syntax) |
No edit summary |
||
| (6 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
== Summary == | == Summary == | ||
This is a method of the PImage class written for [[Education/Projects/ProcessingForTheWeb]]. Gets the color of a pixel, a group of pixels, or the entire image. | This is a method of the PImage class written for [[Education/Projects/ProcessingForTheWeb]]. Gets the color of a pixel, a group of pixels, or the entire image. [http://processing.org/reference/PImage_get_.html View official Reference] | ||
[http://processing.org/reference/PImage_get_.html View official Reference] | |||
=== Examples === | === Examples === | ||
<br> | |||
void setup() | |||
{ | |||
size(250,200); | |||
background(0); | |||
} | |||
=== Syntax === | PImage pimg = new PImage(loadImage("fish.jpg")); | ||
{| class="wikitable" border="1" width=" | PImage pimg2 = pimg.get(0,0,64,46); | ||
color c= pimg.get(120,0); | |||
fill(c); | |||
void draw() | |||
{ | |||
image(pimg,0,0); | |||
rect(25, 25, 50, 50); | |||
image(pimg2,0,93); | |||
} | |||
<br><br> [[Image:PImageGet.jpg]] | |||
=== Syntax === | |||
{| class="wikitable" border="1" width="700" | |||
|- | |- | ||
! | ! | ||
! Description | ! Description | ||
|- | |- | ||
|img.get() | | img.get() | ||
|returns the entire image | | returns the entire image | ||
|- | |- | ||
|img.get(x, y) | | img.get(x, y) | ||
|returns the color of a single pixel in the img pixels[y*width+x] | | returns the color of a single pixel in the img pixels[y*width+x] | ||
|- | |- | ||
|img.get(x, y, width, height) | | img.get(x, y, width, height) | ||
|returns a section of the display window by specifing an additional width and height parameter. If the pixel requested is outside of the image window, black is returned. | | returns a section of the display window by specifing an additional width and height parameter. If the pixel requested is outside of the image window, black is returned. | ||
|} | |} | ||
== Parameters == | == Parameters == | ||
img | {| class="wikitable" border="1" width="700" | ||
x | |- | ||
y | ! | ||
width | ! Description | ||
height | |- | ||
|img | |||
|PImage | |||
|- | |||
|x | |||
|x-coordinate of the pixel | |||
|- | |||
|y | |||
|y-coordinate of the pixel | |||
|- | |||
|width | |||
|width of pixel rectangle to get | |||
|- | |||
|height | |||
|height of pixel rectangle to get | |||
|} | |||
== Returns == | == Returns == | ||
| Line 53: | Line 84: | ||
=== Tests === | === Tests === | ||
{| width="200" border="1" cellpadding="1" cellspacing="1" | |||
|- | |||
| Test | |||
| Location | |||
|- | |||
| All get() functionality | |||
| [http://matrix.senecac.on.ca/~asobiepa/Processing/PImage/PImageGet.html get()] | |||
|} | |||