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    Texture from url?

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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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                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        For HTTPS connections you need to enable SSL when you create the HTTP connection.
                                        Note that there's a bug in Ruby that shipped with SU2014-2016 that might cause problems under Windows where the shipped SSL certificates might not work.

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

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