C
HAPTER
3: Scripting Photoshop
Advanced Scripting
70
JS
To select an area and apply a wave filter to it:
1.
Type the following code into the script file
HelloWorldDoc
just above the statements that restore
original preferences:
//create new variables to contain doc width and height
//convert inches to pixels by multiplying the number of inches by
//the resolution (which equals number of pixels per inch)
docWidthInPixels = docWidthInInches * resolution
docHeightInPixels = docHeightInInches * resolution
//use the rasterize method of the artLayer class
newTextLayer.rasterize(RasterizeType.TEXTCONTENTS)
//create a variable to contain the coordinate values
//for the selection object
selRegion = Array(Array(0, 0),
Array(docWidthInPixels / 2, 0),
Array(docWidthInPixels / 2, docHeightInPixels),
Array(0, docHeightInPixels),
Array(0, 0))
//use the select method of the selection object
//to create an object and give it the selRegion values
//as coordinates
docRef.selection.select(selRegion)
newTextLayer.applyWave(1, 1, 100, 5, 10, 100, 100,
WaveType.SINE, UndefinedAreas.WRAPAROUND, 0)
2.
Save the script, and then open Photoshop and select the script from the Scripts menu (choose
File >
Script > HelloWorldDoc
).
3.
After viewing the document in Photoshop, close Photoshop without saving the document.
N
OTE
:
Look up the following classes in the
Adobe Photoshop CS5 JavaScript Scripting Reference
, or in the
ExtendScript Object Model Viewer to see if you understand how you used them in this script:
➤
ArtLayer
➣
rasterize()
method. Notice that the
RasterizeType.TEXTCONTENTS
argument uses the
RasterizeType
constant. Constants are always depicted in upper case letters in Photoshop
JavaScripts.
➣
applyWave()
method
