I really appreciate all your help.

I looked for the Java CP, didn't find it, and realized Java wasn't installed on the Windows machine! I installed Java, and ImageTrimmer worked perfectly.

Is there a setting on my wife's Windows machine I can change to allow it to execute .jar files?

I installed SU and SKMTools on my wife's Toshiba laptop running Windows 7. Running ImageTrimmer, I get the same error message in the Ruby Console:

Error; #<Errno;;ENOENT; No such file or directory - I;\imagesToProcess\TrimmedImages\Article_I[Edges].dat>
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233;in `readlines'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233;in `make_edges'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;186;in `process_image'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;163;in `initialize'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;760;in `new'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;760
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233;in `call'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233

As I mentioned, I'm a programmer too (although not in Ruby) and I'm used to working with error messages. Is there anything I can change here?

Okay. I will run it on my wife's Windows computer.

@unknownuser said:

So for some reason you aren't getting the jar file to fire and make the Article_I[Edges].dat file ??? Is there a Article_I[Edges].dpng file getting made ????
Did you check access rights to the ../Plugins/SKMtools folder and its contents were set as I explained ?

Yes - when I run ImageTrimmer from inside SU, it appears the jar file doesn't fire. As I noted in the post before last, there is no [Edges] file in the TrimmedImages folder after running ImageTrimmer. However, if I double-click the EdgeDetector.jar file, it works correctly, and the following two files are created:

C__Users_TIG_Desktop_Article_I[Edges].dat
C__Users_TIG_Desktop_Article_I[Edges].png

I have checked the access rights per your post.

I wanted to see if I could rule out Mac vs. PC issues, so I launched Windows in Parallels, a Windows emulator for Mac. I installed Sketchup on Windows and the SKMTools plugin. I moved the Article_1.skp file to My Documents, and ran ImageTrimmer. Here is the output from the Ruby Console:

Error; #<Errno;;ENOENT; No such file or directory - C;\Users\Administrator\Documents\TrimmedImages\Article_I[Edges].dat>
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233;in `readlines'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;233;in `make_edges'
C;/Program Files (x86)/Google/Google SketchUp 8/Plugins/SKMtools/ImageTrimmer.rb;186;in `process_image'

I did the following:

• Set permissions for Plugins and all included files and folders to read/write/execute for everyone (had been read/write/execute for my account only)
• Checked for images made about the start of the process - found one - "Article_I.png" - opened it in PhotoShop - it seemed to be identical to the png we are working on.
• Moved all TrimmedImages folders to the trash
• Copied the latest Article I.skip file to its own folder on the desktop and opened it in SU
• Opened Ruby Console
• Clicked the imported .png image in SU
• Started ImageTrimmer
• Waited a bit
• Status bar message: "ImageTrimmer: Making 'Edges' files - please wait..."
• Ruby console messages: aha! There's an error message:

Error; #<Errno;;ENOENT; No such file or directory - /Users/myUserName/Desktop/imagesToProcess/TrimmedImages/C__Users_TIG_Desktop_Article_I[Edges].dat>
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;233;in `readlines'
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;233;in `make_edges'
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;186;in `process_image'
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;163;in `initialize'
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;760;in `new'
/Users/myUserName/Library/Application Support/Google SketchUp 8/SketchUp/Plugins/SKMtools/ImageTrimmer.rb;760

No file named "C__Users_TIG_Desktop_Article_I[Edges].dat" is found in the TrimmedImages folder. There is one file in there at this time, called "C__Users_TIG_Desktop_Article_I.png".

from.ini contains:

/Users/myUserName/Desktop/imagesToProcess/TrimmedImages/C__Users_TIG_Desktop_Article_I.png

to.ini contains:

/Users/myUserName/Desktop/imagesToProcess/TrimmedImages/C__Users_TIG_Desktop_Article_I

• Ran EdgeDetector.jar - it worked! It added to files to the TrimmedImages folder:
  C__Users_TIG_Desktop_Article_I[Edges].dat
  C__Users_TIG_Desktop_Article_I[Edges].png

I'm a coder myself (although not yet a Ruby coder) - I'm used to working with error messages. What does this tell us? Can I change something?

I clicked on the top image - the all-black imported png - in the "Article 1" .skp file you provided. I ran ImageTrimmer. It's been running for 40 minutes now with no visible results. I'm running on a 2-month-old 2.4 GHz Intel Core 2 Duo MacBook Pro with 4GB of ram. Could I be missing something?

I'm using ImageTrimmer on a new image, and it looks like I still have a bit to learn in order to use it correctly. I thought I'd gotten rid of all the non-black pixels, but I guess there must still be some. A few questions:

• You mentioned that you'd looked at the ImageTrimmer Edges files and spotted the bad pixels. Where can I find the ImageTrimmer Edges files?
• Do I need to apply a texture to the .png image in SU before using ImageTrimmer?

The image is attached.

Article I.skp