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[Plugin] ImageTrimmer

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  • T Offline
    TIG Moderator
    last edited by 18 Jun 2015, 17:03

    Do you have th latest version installed [ http://sketchucation.com/pluginstore?pln=SKMtools v20140207 ]

    Your PNG works fine for me - see the screenshot - so I suspect something is adrift in the way the .jar files get processed...
    See the earlier comment about the file-type association etc...

    Do you get a folder made with the SKP that includes various files ?
    If so zip it and post it...

    PS TIP:
    Auto-Crop the PNG image to remove the redundant transparent pixels - it'll speed up the processing, because every pixel gets inspected, and all of the extra transparent ones get ignored anyway !


    Capture.PNG

    TIG

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    • D Offline
      davecoopstl
      last edited by 21 Aug 2015, 15:59

      Can someone please explain to me how to use TIG's Image Trimmer (part of his SKMtools package)?

      I'd love to be able to quickly and easily trim my PNG files, so they cast shadows correctly.

      TIG, I'd love some advice.

      Thanks.
      Dave.

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      • P Offline
        pbacot
        last edited by 21 Aug 2015, 16:11

        there's a good explanation here: http://sketchucation.com/forums/viewtopic.php?t=33445

        MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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        • T Offline
          TIG Moderator
          last edited by 21 Aug 2015, 16:22

          @dave

          I have merged your post with the base thread.
          Pointless in splitting...

          If you read the initial instructions and resultant clarifications that are listed here, then it should suffice.

          Précis:

          Ensure Java is enabled.

          Ensure JAR files are NOT associated with another app - some compression tools might unexpectedly hijack that file extension. They always need to be set up as small executables, associated with Java.

          Make a PNG file with transparent pixels, which you want to remove later.
          Any pixels with even a slight transparency will be removed, so flatten the image and then re-add an alpha-layer and delete the 'background' pixels you want to lose.
          Also crop the image as tightly as possible - every pixel will be considered, so it's pointless having hundreds of transparent pixels surrounding what you want to keep - it just extends the processing time...
          Run the tool and it should make what you want after a minute or so.
          The finalizing dialogs are self-explanatory...
          The 'smoothing' defaulting at 2.0 is usually sufficient to resolve jagged 'pixelated' edges in the final 'cutout'...

          TIG

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          • D Offline
            davecoopstl
            last edited by 21 Aug 2015, 18:17

            TIG, I got it working. I think I know what was wrong: My PNG file was almost 28 Megabytes!

            I reduced the resolution from 300 to 100, cropped it tight, and the file went down to about 1 Meg.

            Image Trimmer worked like a charm!

            Thanks for the advice.
            Dave.

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            • A Offline
              AGiam9
              last edited by 12 Jul 2017, 13:38

              Hi TIG,

              I'm having some trouble getting the image trimmer to work on the below logo. I'm not all that familiar with programming and have tried to follow previous advice given in this forum but it is likely I am missing something. When I use the trimmer it starts loading and then suddenly stops and nothing happens. According to the guide on how to use this means there are no useable transparent pixels but I do not think that should be the case. I created two different versions of the PNG file, one with the logo as transparent and one with the logo filled with the outside transparent. From my understanding, the first one should work. So far I have troubleshooted by ensuring the EdgeDetector.jar file is executed by Java (it was not when I started, had to set it up). Not sure what the next step may be or if it is just the file. Can you please advise?


              File to be trimmed

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              • D Offline
                Dave R
                last edited by 12 Jul 2017, 14:17

                If you look closely at the PNG, you'll see there is a huge number of pixels to work through for creating the edges. You might just need to wait longer. SketchUp will show (Not Responding) in the title bar while it is processing. Maybe go for a walk or eat a meal or something.

                Do you know what fonts were used? It might make sense to use 3D text instead of Image Trimmer if you can get those fonts.

                Etaoin Shrdlu

                %

                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

                %

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                • D Offline
                  Dave R
                  last edited by 12 Jul 2017, 15:16

                  With patience and a walk of the dog...
                  Screenshot - 7_12_2017 , 10_14_05 AM.png
                  I used 0 for the simplification factor.

                  Etaoin Shrdlu

                  %

                  (THERE'S NO PLACE LIKE)

                  G28 X0.0 Y0.0 Z0.0

                  M30

                  %

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                  • T Offline
                    TIG Moderator
                    last edited by 15 Aug 2019, 15:43

                    It's just been reported that ImageTrimmer is broken with SketchUp v2019.2
                    There seems to be a 'reversion' in SketchUp's core code and now an Image's face's material can no longer be referenced for use in the rest of the model.
                    However, ImageTrimmer still works fine in all earlier versions of SketchUp.
                    Once v2019 is debugged it might work again - if not I might have to invent a workaround 😒

                    It'll also impact on all of the related SKM tools involving Images' materials 😲

                    TIG

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                    • T Offline
                      TIG Moderator
                      last edited by 16 Aug 2019, 13:35

                      Here's an updated version of SKMtools.
                      It fixes the glitch found with ImageTrimmer, introduced with SketchUp's v2019.2 new API restrictions on directly using the material from an Image in the model's entities.
                      There was already a SKMtools method to make a new material from an Image [leaving the Image intact], and add that material to the model's materials; this is now utilized to copy the Image's material into the model for reuse on the trimmed-component's faces...
                      https://sketchucation.com/pluginstore?pln=SKMtools

                      TIG

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                      • D Offline
                        Dave R
                        last edited by 16 Aug 2019, 13:48

                        Excellent! It works in 2019 now. Thank you!

                        Etaoin Shrdlu

                        %

                        (THERE'S NO PLACE LIKE)

                        G28 X0.0 Y0.0 Z0.0

                        M30

                        %

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                        • P Offline
                          pbacot
                          last edited by 16 Aug 2019, 15:51

                          Thank you!

                          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                          • A Offline
                            alphamagnus
                            last edited by 8 Oct 2019, 04:19

                            well, 9 years after this was released , i'm trying to use it on Sketchup 2017, which doesn't seem to have the folders to copy the files to 😕

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                            • T Offline
                              TIG Moderator
                              last edited by 8 Oct 2019, 11:19

                              It makes the required folder inside the model's folder ?
                              Have you looked there ?
                              [That's why you need a 'saved' model to process, so the temp-folder can be made...]

                              Are there any error messages ?
                              Run it with the Ruby Console open to see...
                              The folder is made to contain the temporary files needed during processing.
                              At the end you are offered the choice to delete the files/folder, so if you do that you won't find anything !

                              The trimmed image is inside the model, so you rarely need to look into this temp-folder anyway ??

                              If you have not set up the PNG image properly then it might not have any transparent pixels and trim to look like it did originally, or conversely if all pixels have some transparency you get an empty result.

                              Also remember that JAR files used in the processing have to be associated with Java and not hijacked by any compression-app...

                              There's lots of advice in the main thread...

                              It works in all current versions of SketchUp...

                              TIG

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                              • R Offline
                                rclubb
                                last edited by 15 Oct 2019, 18:04

                                I'm trying this plugin out on a pretty complex png. It appears to be running, going on about 3 hours now. Should I give up or do you think it's still going?

                                Sketchup 2019.2
                                late 2015 iMac (macOS Mojave 10.14.6)
                                4GHz 4-core i7 processor
                                32 GB 1867 DDR3 RAM
                                AMD Radeon R9 M390 2 GB


                                image is proprietary.

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                                • T Offline
                                  TIG Moderator
                                  last edited by 16 Oct 2019, 15:30

                                  Are the white pixels transparent ?
                                  Are the other colored pixels 100% solid ?
                                  Why no aggressively crop the PNG so that it's tight to what you want to keep - otherwise thousands of pixels get analyzed and throw away anyway !

                                  It shouldn't take more that 5mins...
                                  How big is that PNG ??

                                  TIG

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                                  • R Offline
                                    rclubb
                                    last edited by 18 Oct 2019, 20:19

                                    So, I tried to cut the transparent space down and now I get a error message:


                                    Screen Shot 2019-10-18 at 4.17.38 PM copy-Resized.png

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                                    • R Offline
                                      rclubb
                                      last edited by 18 Oct 2019, 20:47

                                      the white areas are all transparent. it is rectangle cropped as tight as possible.

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                                      • T Offline
                                        TIG Moderator
                                        last edited by 19 Oct 2019, 15:57

                                        I downloaded your original PNG and it trimmed just fine in a minute or two...
                                        However, the result is rubbish, because many of the colored pixels also have some transparency, also get trimmed !
                                        A simple PNG edit to flatten and reassign a transparent layer to just the white 'surround' gives a better result...
                                        However, given the relatively small size and resolution of the PNG the small areas - like the text - it still gives a pretty poor result...
                                        Capture.PNG

                                        From the screenshot you posted it looks like that's actually NOT an Image ?
                                        You have a selected face ??
                                        Did you adjust the PNG and get that result from ImageTrimmer ???
                                        I some ways it's better that mine ! As it keeps the text etc unaffected...

                                        Initially did you import it as an Image ? rather than a Texture...

                                        Also I can't see the advantage of trimming this PNG into a Component ??
                                        What's you end use plan ?
                                        Perhaps it'd be more useful as an imported Image overlaid onto your model ?

                                        TIG

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                                        • R Offline
                                          rclubb
                                          last edited by 21 Oct 2019, 13:35

                                          I imported the PNG in as and image. It's originally a vector I saved as a PNG.
                                          I traced out a rough line around the non-transparent areas to help speed up the Trimmer plugin but it didn't help. that's the screenshot I attached. When I traced it out and removed the empty space it made it no longer an image I think?
                                          I don't know how to save as a PNG from illustrator and not lose 100% solid colors. In my vector, all colors are solid.

                                          I want to place this on a 3d mock-up of a outdoor sign but it makes a black box around the PNG no matter what method I try.

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