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    Texture from url?

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    • J Offline
      Jim
      last edited by

      @tig said:

      Here's a discreet way of downloading an image file from a url on Windows only - using vbs...

      VBScript will run in the WebDialog, so you could eliminate the external file. But I would still try to follow Thom's advice, use JavaScript, and pass the data to the Ruby plugin to save it on disk.

      Hi

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      • TIGT Offline
        TIG Moderator
        last edited by

        My 'vbs' method means you don't actually need a web-dialog running at all.
        You can download images from a url with it [on PC] irrespective of what the Ruby script is doing or has as an interface... πŸ˜•

        TIG

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        • J Offline
          Jim
          last edited by

          @tig said:

          [on PC]

          Exactly.

          The most beneficial result from this thread would be a cross-platform download library which could be used for images or anything, really.

          Hi

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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 πŸ˜•
            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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