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    Texture from url?

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    • TIGT Offline
      TIG Moderator
      last edited by

      But the original inquiry was 'for PC' ?
      A pure Javascript version can't work [?] - because of security issues there is no plain 'save' - only 'save_as', to you ensure you know what's going on with downloading things off the www onto your PC...
      The 'vbs' method will work for PC - there's probably an equivalent AppleScript [type] method for the MAC... but I can't see how a 'cross-platform' version might work 😕
      Java is inherently 'limited' as I said...

      TIG

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      • J Offline
        Jim
        last edited by

        @tig said:

        A pure Javascript version can't work [?]

        I think it can. There is no save or save as in JavaScript. You can save to disk using JavaScript, but there isn't a cross-platform solution. On Windows, you would use a FileSystem activex object. The same scripting host that rtuns the .vbs can run .js also.

        But, the XHR is available on all (important) browser platforms. So a cross-platform solution is to use a WebDialog, fetch the file using the XHR, then pass it to the ruby plugin for saving to disk.

        This small library is a good example of using a XHR cross-platform:
        http://code.google.com/p/microajax/

        
        if (window.ActiveXObject)
        return new ActiveXObject('Microsoft.XMLHTTP');
        else if (window.XMLHttpRequest)
        return new XMLHttpRequest();
        return false;
        
        

        Hi

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        • TIGT Offline
          TIG Moderator
          last edited by

          What's this then ?
          <a href="java script&#058;void(0);" onclick="document.execCommand('SaveAs',true,'http://fileden.com/somefolder/some file.mp3');">download</a>
          There's just not a 'Save' version ???

          TIG

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          • J Offline
            Jim
            last edited by

            I've never heard of "execCommand" before, but I'd be surprised if it were cross-platform. If it existed, we probably wouldn't be having this discussion.

            Hi

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            • TIGT Offline
              TIG Moderator
              last edited by

              Perhaps a MAC users could confirm...

              TIG

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              • B Offline
                ben.doherty
                last edited by

                While the JS debate rages, I've been playing with what can be done with ruby (being single-minded/stubborn/lazy)

                I've updated my !loadpaths file to match dan's latest http://forums.sketchucation.com/viewtopic.php?f=180&t=29412&hilit=load+path#p257058
                and when I try a couple of things I get this response:
                require 'net/http' Error: #<LoadError: C:/ruby186/lib/ruby/1.8/net/protocol.rb:21:inrequire': No such file to load -- socket>
                C:/ruby186/lib/ruby/1.8/net/protocol.rb:21
                require 'date/format'
                true`

                Any ideas on why net/http fails, but date/format works?

                I'm sure it will take some clever file management, and refresh cycle control etc, but it'd be cool to be able to specify a url to get a texture from. That'd open up a load of opportunities for data vis etc.

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                • J Offline
                  Jim
                  last edited by

                  That means it couldn't find the file (socket.so) in the load path.

                  For a short-term solution, you could try to copy socket.so to the Plugins folder.

                  Hi

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                  • Dan RathbunD Offline
                    Dan Rathbun
                    last edited by

                    @jim said:

                    I've never heard of "execCommand" before, but I'd be surprised if it were cross-platform. If it existed, we probably wouldn't be having this discussion.

                    It's HTML 5 me thinks. And seems Microsoft may have added a bunch of standard CommandIDs without getting them approved by the web community (as usual.) The spec implies browser specific IDs should have a prefix like "IE-", but MS has been doing this 'arm-twisting' for years.

                    See: http://www.w3.org/TR/html5/author/dom.html#execCommand

                    MSDN: http://msdn.microsoft.com/en-us/library/ms536419(v=VS.85).aspx
                    and MS' command IDS: http://msdn.microsoft.com/en-us/library/ms533049(v=VS.85).aspx
                    ~

                    I'm not here much anymore.

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                    • B Offline
                      Ben_M
                      last edited by

                      Hello!

                      Has anyone made any progress on a simple, cross platform solution to this in the past few months?

                      Thanks,

                      Ben

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                      • V Offline
                        Viskiz
                        last edited by

                        I solved in on Windows platform.
                        In my script installation I included ruby lib files needed for http, so users will have them after installing script.
                        The code followed in script:

                        $LOAD_PATH << File.join(MY_PLUGIN_HOME, "bin", "rblib")
                        Sketchup::require 'uri'
                        Sketchup::require 'net/http'

                        Installer for MAC OS should have different ruby library files I think. I haven't MAC yet, so I can't tell any more. Let me know if you solve it.

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                        • J Offline
                          Jim
                          last edited by

                          You may be interested in this plugin effort - downlod files plugin using the cUrl library.

                          Hi

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                          • K Offline
                            kaas
                            last edited by

                            Digging up this old thread because I'm trying to do almost the same as the OP. Since the last post in this topic, Ruby has been updated so I'm hoping its more simple now.

                            I have been trying several methods. This code saves the image in the local documents folder so I could pick it up there etc.

                            require 'net/http'
                            Net;;HTTP.start("www.google.nl") do |http|
                                resp = http.get("/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png")
                                open("googlelogo_color_272x92dp.png", "wb") do |file|
                                    file.write(resp.body)
                                end
                            end
                            puts "Done"
                            

                            Problem is, my images need a different type of url. Something like:
                            https://url/coordinates/?key=1234abc&index=0
                            This sort of link doesn't work in the code above.

                            Another method I'm trying is loading the image in a webdialog and then grabbing it from Ruby.

                            The test html code (the url could easily replaced with the actual https code) is:

                            <!DOCTYPE html>
                            <html><head></head><body>
                            <img id ="webimage" src = "https://www.google.nl/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png">
                            </body></html>
                            

                            And to grab the image in ruby:
                            img = @wd.get_element_value('webimage')

                            Of course this doesn't work because the image isn't a value. I'm stuck.

                            Anyone has a suggestion? That would be very welcome.

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                            • TIGT Offline
                              TIG Moderator
                              last edited by

                              Something like this should work:

                              require('open-uri')
                              fail = false
                              url = "http://www.google.nl/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png"
                              file = File.join(Dir.pwd, File.basename(url))
                              begin
                              	download = open(url)
                              rescue Exception => error
                              	puts "#{error}"
                              	fail = true
                              end
                              unless fail
                              	begin
                              		File.delete(file) ### in case it exists
                              	rescue
                              		###
                              	end
                              	begin
                              		IO.copy_stream(download, file)
                              	rescue Exception => error
                              		puts "#{error}"
                              	end
                              end
                              
                              

                              It should work with a 'php' formatted URL, but remember that then you need to parse out the file name another way. Perhaps [assuming 'key=' gives the file name] split the URL at '?', then take [1], then split at '&', then find the array element starting "key=", then split that at '=' and then [1] is the file name given by 'key=' ?
                              I also saved the downloaded image file in the 'current directory', but you can of course choose any other folder you want...

                              TIG

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                              • K Offline
                                kaas
                                last edited by

                                Thanks for the reply TIG. Your code does download a file but when trying to open it I get:
                                Decode Error! Invalid or unsupported PNG file

                                Edit:
                                I was also trying with net/http. It does work with simple files but the actual https request still fails.

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                                • K Offline
                                  kaas
                                  last edited by

                                  In case someone runs into the same question. It seems to work now.

                                  require 'net/http'
                                  require 'tempfile'
                                  
                                  uri = URI('https://www.google.nl/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png')
                                  
                                  model = Sketchup.active_model
                                  materials=model.materials
                                  m = materials.add "Test Color"
                                  loc = ''
                                  
                                  begin
                                  	request = Net;;HTTP;;Get.new uri
                                  	Net;;HTTP.start(uri.host, uri.port,
                                    ;use_ssl => uri.scheme == 'https') do |http|
                                  	  http.request(request)
                                  	  response = http.request request # Net;;HTTPResponse object
                                  		file = Tempfile.new(['foo','.png'], Dir.tmpdir, 'wb+')
                                  	  begin
                                  			file.binmode
                                  			file.write(response.body)
                                  			file.flush
                                  			loc = file.path.gsub("/", '\\\\\\')
                                  	  ensure
                                  			file.close
                                  	  end
                                  	end
                                  rescue Exception => e  
                                    puts e.message 
                                  end
                                  
                                  m.texture = loc
                                  m.texture.size = [m.texture.image_width.to_m, m.texture.image_height.to_m]
                                  
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                                  • D Offline
                                    driven
                                    last edited by

                                    for completeness you need a conditional for osx

                                    
                                     loc = file.path if Sketchup.platform == ;platform_osx 
                                    

                                    john

                                    learn from the mistakes of others, you may not live long enough to make them all yourself...

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                                    • Dan RathbunD Offline
                                      Dan Rathbun
                                      last edited by

                                      When a image is loaded as a web page resource, it is present in the "Temporary Internet files" folder. But some security settings might prevent the copying of a file from there to a trusted local folder.

                                      Anyway:
                                      require "FileUtils"

                                      then try the copy method.

                                      See: http://ruby-doc.org/stdlib-2.0.0/libdoc/fileutils/rdoc/index.html

                                      I'm not here much anymore.

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                                      • K Offline
                                        kaas
                                        last edited by

                                        John and Dan, good suggestions. Thanks

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                                        • thomthomT Offline
                                          thomthom
                                          last edited by

                                          When you say different type of URL, what do you mean? HTTPS?

                                          Thomas Thomassen — SketchUp Monkey & Coding addict
                                          List of my plugins and link to the CookieWare fund

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                                          • K Offline
                                            kaas
                                            last edited by

                                            @thomthom said:

                                            When you say different type of URL, what do you mean? HTTPS?

                                            Yes, something like https://url/coordinates/?key=1234abc&index=0

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