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    Assistance needed with a vector knob

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    • d.healey
      d.healey last edited by d.healey

      Hello,

      I'm trying to create a vector knob in a panel. It consists of two arcs, one overlaid on the other, and that part works just fine.

      Peek 2020-07-07 18-21.gif

      What I'd like to add to it is a little circle to indicate the current position. A bit like this:

      Peek 2020-07-07 18-23.gif

      This needs to be added without rotating the canvas, because there will be multiple things drawn on the same panel.

      Anyone know how to do it?

      HiseSnippet 1362.3oc0W0raaaDDdoiYRrZUQCPe.VjSTNJJTJNoEvHH9+Bgz3HTk5TffffUjqDWXpcYWtzJJA4XeO58Vzmodom5k9FzNyRRQJGam.i5CUvv1ye67M+s6nAZU.OMUoINq874Ibhym6NbtzDsaDSHI82i3zv8XoZjgmZH6LOgklxCINNW6aQ4NqsJw94ue7NrXlLfWwhPNRIB3emXpvTwcvVOQDGe.Kj+bwzZZuwV8CTxcUwpL.KWy0mjvBNlMgeHCUaEWhy02OTXT5gFF.Fhyp6nBmOLRMSlq+QhTwnXNRzkLDNnb1GnhCQDibI6FIhCGTFyoD3TFTkAtVdF3qbepHTrfeUl3KsBnUVTOe3rxEAut0gm+mN7bpAuUyg2sbGFnEIlJIH19L29RCWOlAkf5vJWWxJ+9Mb2UAZHMclxNlefFHVXg2C88aSefueqMa1nYCnPjZnmvzzm.U9tzGQKMcB2rqZZhRBDd21J8141HjwBImNNSFXDJIUIsRQC0pXufRqZCmabFuUyFuqYi0Fvj73tcz7DHGa7vi581i6BcXmTjq8f2kEGOBZT7V1emNNx8y4FH4hKhjBLA9X.BpuWkYfHyqLx7lzBPNE9j+a73SMLs4YiGC1.9nWmGr4BQLcvyiDAGKgREHaiN8VR1KDglHfe2RaxOz6cuWDILbTilKwltcXH0DYkPmI.aQhIhS3RfEmQYxPpvjRUVzjRERplEJXRpmOsSmNzdqOneqJnmTOqD.mfgOfYhfRgUkjtcXggaqC7dIzg.+zE94Uso2EBx1XjVn2j7ZBN85k+mzNyvP.yozhOkwfIRjRk7YzobSjJjp4lLsL0FJoArXdHcjJSFlVEgAJslGXfXApAUfGP51XT+HDnPMcGqYda3W51RMdo+qPkpQcGZW+SqT2kTpagRe.9C0rYoKpBdYo7BB.Ii0poT1H0I.OEkchRDRmwEZLJwXSHmzpHigGiMWm.I0Ru1ldeLoV5RrgL2q6.SMU8C1nu24U5pzQpzSAm9Vd3Q3XGXfcLAyUVFGtPdYEudfB3MHKFNWa7wgVqhdIaTZqKYPcQZxGpW3UPyESC2s9vwcfVFe55KMvr9oA4GhC7FKZZlNGGukqU4NrnRvnvD5b.Trh6dFWVbrGPcz7THAAW.9FuELaeZD52oKjJ9ucdKuMq24LKUy+sqP6ELYMBuAcyql4p5yT89e7LUu5yT0uEtLLZ79VaV64pCUF9yjdsZ7tFq038MnmVz3wmorhGbh45yTLtji9hLzSlMcDWW9rXohvq8KuNg64uNQ8scBxuNnlhJYeov7rDt77VxfTbGBrtwJEnBT0XW13KJV1XXrHjqIBXmha3ZuBgXAb8M.Im13lkapfunZs8lt4uttrw+7e8mOl7C82iYX3JOEvAfXBWaDXz6rG+DXWx7EfVycOd5wFUhEuEOhCYnOJheyBz9KAaMuhfu0TQXXLefJUfUmpf5OvfZgGt4GMr.O35fFNu7eh3hIQH5b9MfZF9bOR7q.QJ6Dde4.nGliKHecmh0lUIreBSNNqP9vs+fcPUg3cxKuXJtMdg.L.puAHtkmDBr40qUWIaq9oB2a4NPXBhNa7txYfWry7JFuE692zc+wigKDq.6ptG7iW8K5SxWybB79jVfcQGlMcHbWe.GPhD5svq.fFBzTKseYC1P3ACKw+.eJD1EocJD1sTHYJKPqdcP9TJ9sKtokCfIo8KYsl6SQZ5hwSWW+N9DX3P75f.LUbW.6msM8tD1b+KgMabIr4AWBad3kvlu9RXy2bg1feeysyLpo4iI.iA6aulzwYeIC5xrcjj+EPHDp1w
      

      Libre Wave - Freedom respecting instruments and effects
      My Patreon - HISE tutorials
      YouTube Channel - Public HISE tutorials

      ustk 2 Replies Last reply Reply Quote 0
      • ustk
        ustk @d.healey last edited by

        @d-healey I imagine the panel size is good, right?

        I can't help pressing F5 in the forum...

        1 Reply Last reply Reply Quote 0
        • ustk
          ustk @d.healey last edited by ustk

          @d-healey Trigonometry is your friend 🙂

          HiseSnippet 1523.3oc0Xs0aaTDEd2zrkZCAQk3Yzn9z5TGmccSJUMpTmqHqRSsvkVjhpJS1cr8nrdFyrisiaUj3k9+feJ7SAIDOwK7O.NmYuZ2jzpHxCrxxwy4xb9N2l8LoiRFvhikJK6JOe1Hlk8m4zclPOX2ATtvp8dV1UcNQHOVyh0V6LaDMNlEZYaeiuE4aWYYKyye+3cnQTQ.qfjk0Kj7.12wGx0ET6z5I7nnCngrmyGVR5MZ0NPJ1UFIGCX4FNdVinAmP6yNjhhsjik8M2OjqkptZJ.FK6k2QFNq6.4TQh7ufGyONhgK7s5BaTB4CjQgHhQpV6NfGE1IymisfcoSQD3FIQfuz4o7PdN8hHwWXXPJznb7vdoKCd9kgm2GO7rKAukSf2sc5Fn3izEbPr8oNsEZlpGERAkgUhrVK0shytRPBgtwP5IrCTvhbMbuumWcxldd01ZkpqTERDwZxDph7DHy6SdDIS09L8txgijBXg6cLbuShNbQDWvH8FKBzbofHEFtnhJYjaPlV0g8MZLq1JUe6JUqzgJXQ9MTrQPLV6ha0Yls6RMXiXjpYi2kFEcLTn3Nu8VzORryE5HIrS8jTLA1nCBpuWNVCdlalm41uFfbB7j7Mt8wZpR+rd8.c.azrwlakyhpBd9.dvIBHUA71nQy438Rdnd.P2OSmjMc80e4.tlgRrxbjIaGFRzCLbHS4ft3h97ILAPhQITQHgqiIRCZhIbAQQC4TAw0iznQCRyU6ztVAzGUNpD.6fl0gpG.oBiHi7aPCC2VE3dDTg.e7gOupNYMvIqidZpb8SxIX2qaxehaLEcALlRRex7A8.dLQvlRFxzCjgDESOVIhMtRb.MhERNVNVDFW3gARkhEnAeAxAEfGP51nW+HDnPNcGiZta3kY1LINx6UnPkVcWhu2hB4OmP9oB8d3OTQmFmmEbGGyRW.HomRNjPOVNAnIIzIRdHYJiqPuD8MtneszHFtMlX8HHnlY05j6gA0LShEjIVcGnqondv38MunTWgLBoZHXz2vBeA11AJXZSvXkgvg47yx3kcT.uAiif803eLnzJsVx3kl7xXHuHzIM04VEjLuaXsxMG2EJY7HqNWCypKBx2GG3IVj3wpDb7FlRlXvzLAk.cny.PQSO6oWVxwrAkQySg.Db.3ot4DquHB8Z3Cgh+a62RJyZdA8Rkre8BzdIcVGimft00SeU4dpl+OtmpY4dpxmBm4F4Go1VHXJR.WEDwJ5bXQQ7QwXGyaO8gPxZF9k5g9dmMm9oh03TPv64ANmoBKPF6tXq2pjMIqMWk+ZIB2o85MqAr8atkAOv17nugD.sUPAeZsLNBVZWmbzZQrd54M+r4LeLWb0MueSz7XQ733LymELLHHAYkCB8azCFpa+DgbOJOlrV1uTqCoibrd9jUk94qxRRUOq1Vklo3Pol8LgaspusZkpmUkrHqd8NWdoSEDwTmKabRT0konqX7viYprYWxDDFIa9Y9bt3Y9JORZPxY1kDTJZK35mMhItnIAsROnGlIboTTAhpMSD94oSD1MhGxTVbXvuOwwbNukAvoSY+ae069iGasnxqjMNIN1iQ2a4jLBzbJa8t+5Oer0OzdOplhyklBG.hiXJMG8d68XSfA9SlRshydr3SfhUCdSmzBhPePDeZ9cB90fVyJVvZMjGFFw5Hi4X1o3pC+N5T4V3VeP2pvBdSJYAqGzZ.i2ePwkU9EVqo37Y4D9IVqX5DVaQG3fGFJ3MsSuqibD8mwfk8RVu+H6vEGjg3KRm+1D3UnRYfNT4w1wQyEfiNq7UrtVthwGKbusSGtNXv4i2kNG7hUpWy3M8Baq3reudvawJ.6xNG7iW+2NyJ4tA8giQUbnpx4vwC6BufNfAHAdoRDdj.TPfpZV6gqwHSW3s7lE+C7jxzGWamxzOio0PZfR95fjtV7Jg2xPAvjvby3JNOEWSxaWcb7Z3YAMK7WGDfgh0.re95z7Jny8tB5rwUPmMuB5b+qfNe8UPmGbo5f+SB1drVNLoMAHzYeywl116KnPUlohz5eEPDqKB
          

          But rotating the canva is still your friend too, if you draw the ellipse at the end of the paintRoutine, nothing else will be affected…

          I can't help pressing F5 in the forum...

          d.healey 1 Reply Last reply Reply Quote 1
          • d.healey
            d.healey @ustk last edited by

            @ustk Thanks, I'll try your snippet!

            if you draw the ellipse at the end of the paintRoutine, nothing else will be affected…

            There will be more than one knob on the canvas so this won't work unfortunately.

            Libre Wave - Freedom respecting instruments and effects
            My Patreon - HISE tutorials
            YouTube Channel - Public HISE tutorials

            1 Reply Last reply Reply Quote 0
            • d.healey
              d.healey last edited by

              @ustk That works perfectly, thank you! Now I shall go and study trigonometry, it's about time!

              Libre Wave - Freedom respecting instruments and effects
              My Patreon - HISE tutorials
              YouTube Channel - Public HISE tutorials

              ustk 1 Reply Last reply Reply Quote 2
              • ustk
                ustk @d.healey last edited by

                @d-healey ☺

                I can't help pressing F5 in the forum...

                1 Reply Last reply Reply Quote 0
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