sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    Texture from url?

    Scheduled Pinned Locked Moved Developers' Forum
    39 Posts 10 Posters 5.6k Views 10 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • J Offline
      Jim
      last edited by

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

      Hi

      1 Reply Last reply Reply Quote 0
      • 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.

        1 Reply Last reply Reply Quote 0
        • 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

          1 Reply Last reply Reply Quote 0
          • 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.

            1 Reply Last reply Reply Quote 0
            • 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]
              
              1 Reply Last reply Reply Quote 0
              • 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...

                1 Reply Last reply Reply Quote 0
                • 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.

                  1 Reply Last reply Reply Quote 0
                  • 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

                      1 Reply Last reply Reply Quote 0
                      • 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

                        1 Reply Last reply Reply Quote 0
                        • 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
                          • 1
                          • 2
                          • 2 / 2
                          • First post
                            Last post
                          Buy SketchPlus
                          Buy SUbD
                          Buy WrapR
                          Buy eBook
                          Buy Modelur
                          Buy Vertex Tools
                          Buy SketchCuisine
                          Buy FormFonts

                          Advertisement