• Isadora
  • Get it
  • Forum
  • Help
  • ADD-ONS
  • Newsletter
  • Impressum
  • Dsgvo
  • Impressum
Forum
    • Categories
    • Recent
    • Popular
    • Tags
    • Register
    • Login

    Polar to cartesian and back

    Interfacing
    5
    12
    2.7k
    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.
    • FredF
      Fred
      last edited by

      Sure calculating the angle is not that hard but this is for unwarping whole images that are shot on a spherical mirror (realtime and HD). Unless I missed something and you can use that coordinate to unwarp an image some how.

      http://www.fredrodrigues.net/
      https://github.com/fred-dev
      OSX 10.15.15 MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
      Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD
      Windows 10 Threadripper 3960x 64g ram, 1tb NVME, rtx 2080ti + rtx2070 super

      1 Reply Last reply Reply Quote 0
      • jhoepffnerJ
        jhoepffner
        last edited by

        Fred,

        I think it's not a problem of polar to cartesian transformation (who are just 2 ways to write the position in space, 1 with x/y, cartesian, other one with angle and distance, polar)
        It's mor a question of projection from space to plan, like in cartography you have mercator or lambert projection.
        Perhaps you could try with the 3D Mesh Projector, who make the transform in real time, using the relative coordinate of the same point in different geometric system.
        The problem is that the description format (.dat) is not well documented. I worked a bit on it but I stopped for that reason, but it could be a way to resolve your problem.
        Hope that help,
        Jacques

        Jacques Hoepffner http://hoepffner.info
        GigaByte 550b / Ryzen 7 3800X / Ram 64 Go / RTX 3090 24 Go / SSD 2 To / raid0 32 To
        MBP 13' i5 2.6 Ghz 16 Go / Intel Iris / macOs 10.11.6 / izzy 2.6.1 + 3.0.3b2
        MBP 15' i7 2.6 Ghz 16 Go / GTX 650M 1Go/ MacOs10.13.3 / Izzy 2.6.1
        MSI GS65 i7 3.6 Ghz 32 Go / GTX 1070 8 Go / Windows 10 / Izzy 3.0.3b2

        1 Reply Last reply Reply Quote 0
        • FredF
          Fred
          last edited by

          OK again, the problem is solved and the files above are there if anyone else wants a GPU solution for using 360 lenses and wants to see the footage. Have a look at the files and you will see what they do. I am not actually using Isadora for this project, I am displaying the images in an oculus rift so I wrote my own software solution. I thought I would share an Isadora friendly version of part of it. Still use full if you want 360, live or in playback.

          http://www.fredrodrigues.net/
          https://github.com/fred-dev
          OSX 10.15.15 MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
          Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD
          Windows 10 Threadripper 3960x 64g ram, 1tb NVME, rtx 2080ti + rtx2070 super

          1 Reply Last reply Reply Quote 0
          • ArmandoA
            Armando Beta Gold
            last edited by

            Thanks Fred.


            Armando Menicacci

            www.studiosit.ca
            www.armandomenicacci.net

            Macbook pro 16 inches 2022 64 GB RAM, M1 MAX. OS 14 Sonoma

            1 Reply Last reply Reply Quote 0
            • primaldivineP
              primaldivine
              last edited by

              Thanks Fred, gave it a try. Inside the zip is an empty foleder called 'To Freeframe'
              Was there supposed to be anything in there?

              I put the .qtz files into my Compositions folder and they load ok as QC actors.
              Scene 'car to pol' in the izz patch works perfectly but pol to car has no visible output from the QC actor
              I checked in QC and the inputs/outputs are published.

              I am using latest izzy beta 1.5.30f23

              jamie 🙂

              Pro-User Latest Beta - MacBook Pro i7 2.66GHz SSD
              www.jamiegriffiths.com Arctic Canada
              www.chickweedarts.com

              1 Reply Last reply Reply Quote 0
              • FredF
                Fred
                last edited by

                Sorry I updated the link above, it should all work now.

                http://www.fredrodrigues.net/
                https://github.com/fred-dev
                OSX 10.15.15 MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD
                Windows 10 Threadripper 3960x 64g ram, 1tb NVME, rtx 2080ti + rtx2070 super

                1 Reply Last reply Reply Quote 0
                • primaldivineP
                  primaldivine
                  last edited by

                  thanks @Fred

                  Pro-User Latest Beta - MacBook Pro i7 2.66GHz SSD
                  www.jamiegriffiths.com Arctic Canada
                  www.chickweedarts.com

                  1 Reply Last reply Reply Quote 0
                  • mark_mM
                    mark_m
                    last edited by

                    @fred, I just tried downloading the sample above but the link is broken 😞
                    Do you still have this patch and sample somewhere? I am trying to work with similar images to those from the 0-360 tool, and to interact with them via Isadora and an OSC accelerometer. I think your patch would be very useful for getting me started.

                    Many thanks

                    Mark M

                    Intel NUC8i7HVK Hades Canyon VR Gaming NUC, i7-8809G w/ Radeon RX Vega M GH 4GB Graphics, 32GB RAM, 2 x NVMe SSD
                    Gigabyte Aero 15 OLED XD. Intel Core i7-11800H, NVidia RTX3070, 32GB RAM 2 x NVMe SSD
                    PC Specialist Desktop: i9-14900K, RTX4070Ti, 64GB RAM, Win11Pro
                    www.natalieinsideout.com

                    1 Reply Last reply Reply Quote 0
                    • FredF
                      Fred
                      last edited by

                      I will have a better look when I get the chance, so far I dont find the old files. 

                      I made it using Quartz composer and programming in the core image filter node in QC and published the inputs and outputs
                      I think this code looks like it will do both directions
                      http://lists.apple.com/archives/quartzcomposer-dev/2009/Mar/msg00022.html
                      Best of luck

                      http://www.fredrodrigues.net/
                      https://github.com/fred-dev
                      OSX 10.15.15 MBP 2019 16" 2.3 GHz 8-Core i9, Radeon Pro 5500M 8 GB, 32g RAM
                      Windows 10 7700K, GTX 1080ti, 32g RAM, 2tb raided SSD
                      Windows 10 Threadripper 3960x 64g ram, 1tb NVME, rtx 2080ti + rtx2070 super

                      1 Reply Last reply Reply Quote 0
                      • mark_mM
                        mark_m
                        last edited by

                        Thanks, Fred.

                        I'm afraid I have no knowledge of Quartz Composer... yet! Always something new to learn!

                        Cheers

                        Mark

                        Intel NUC8i7HVK Hades Canyon VR Gaming NUC, i7-8809G w/ Radeon RX Vega M GH 4GB Graphics, 32GB RAM, 2 x NVMe SSD
                        Gigabyte Aero 15 OLED XD. Intel Core i7-11800H, NVidia RTX3070, 32GB RAM 2 x NVMe SSD
                        PC Specialist Desktop: i9-14900K, RTX4070Ti, 64GB RAM, Win11Pro
                        www.natalieinsideout.com

                        1 Reply Last reply Reply Quote 0
                        • First post
                          Last post