vignette.rb in rmagick-2.14.0

- old
+ new

@@ -1,6 +1,6 @@
-require 'RMagick'
+require 'rmagick'
 include Magick
 
 puts <<END_INFO
 
     vi-gnette (n.) vin-'yet
@@ -11,11 +11,11 @@
     images. This example creates a vignette from a picture of a ballerina.
     It takes a few seconds to run. Be patient.
 
 END_INFO
 
-ballerina = Image.read("../doc/ex/images/Ballerina3.jpg")[0]
+ballerina = Image.read('../doc/ex/images/Ballerina3.jpg')[0]
 
 # Note: this technique won't work with every image. To make a pretty
 # vignette you need an image with a uniform, fairly dark background.
 
 # Start by drawing a white oval on a black background. (Although you don't
@@ -51,29 +51,28 @@
 # the oval remain opaque. Each gray pixel around the border of the oval has a
 # varying level of transparency depending on how dark or light it is.
 
 ballerina.matte = true  # Ensure the ballerina image's opacity channel is enabled.
 oval.matte = false      # Force the CopyOpacityCompositeOp to use pixel intensity
-                        # to determine how much transparency to add to the ballerina
-                        # pixels.
+# to determine how much transparency to add to the ballerina
+# pixels.
 
 ballerina = ballerina.composite(oval, CenterGravity, CopyOpacityCompositeOp)
 
 # Since the vignette has multiple levels of transparency, we can't
 # save it as a GIF or a JPEG. The PNG format can handle it, though.
 
 begin
-    ballerina.write("vignette.png")
+  ballerina.write('vignette.png')
 rescue ImageMagickError
-    puts "Write failed. No PNG support?"
-    # In case PNG support isn't installed, just ignore the exception.
+  puts 'Write failed. No PNG support?'
+  # In case PNG support isn't installed, just ignore the exception.
 end
 
 # At this point the vignette is complete. However, the `display' method only
 # supports 1`level of transparency. Therefore, composite the vignette over a
 # standard "checkerboard" background. The resulting image will be 100% opaque.
 
-checkerboard = Image.read("pattern:checkerboard") {self.size = "#{ballerina.columns}x#{ballerina.rows}"}
+checkerboard = Image.read('pattern:checkerboard') {self.size = "#{ballerina.columns}x#{ballerina.rows}"}
 vignette = checkerboard[0].composite(ballerina, CenterGravity, OverCompositeOp)
 vignette.display
 exit
-