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    Texture from url?

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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

                          1 Reply Last reply Reply Quote 0
                          • 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

                                1 Reply Last reply Reply Quote 0
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