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    gauge.js

    Scheduled Pinned Locked Moved General Discussion
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    • C Offline
      Charley Module Developer
      last edited by Charley

      @sispheor Is everything invisible or just the gauge?
      Do you see pressure or temperatures?
      What is in your console.log from

      console.log('adafruit_python_bpm.py results: %j', results[0]);
      

      MMM-Bose-Soundtouch, MMM-Domoticz, MMM-crypto-portfolio, MMM-Fibaro, MMM-rain-forecast

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      • S Offline
        sispheor @Charley
        last edited by

        @Charley Yes the table is visible. Only the gauge doesn’t appear.

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        • C Offline
          Charley Module Developer
          last edited by Charley

          Okay I might have an idea

          Change your createElement part to

          let mycanvas = document.createElement("div");
          mycanvas.id=("divcanvas")
          let target=document.getElementById("divcanvas")
          
          

          MMM-Bose-Soundtouch, MMM-Domoticz, MMM-crypto-portfolio, MMM-Fibaro, MMM-rain-forecast

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          • S Offline
            sispheor @Charley
            last edited by

            @Charley OK thanks, I’ll try this in a couple minutes.

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            • S Offline
              sispheor @Charley
              last edited by sispheor

              @Charley Doesn’t work…

              Uncaught TypeError: Cannot read property 'getContext' of null
              
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              • C Offline
                Charley Module Developer
                last edited by Charley

                Maybe you could try this

                let mycanvas = document.createElement("canvas");   // changed from div to canvas
                mycanvas.id=("divcanvas")
                let target=document.getElementById("divcanvas")
                

                I made a typo yesterday

                MMM-Bose-Soundtouch, MMM-Domoticz, MMM-crypto-portfolio, MMM-Fibaro, MMM-rain-forecast

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                • S Offline
                  sispheor @Charley
                  last edited by

                  @Charley yes it’s what I tried…

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                  • S Offline
                    sispheor
                    last edited by

                    I tried with another lib called canvas-gauges. It’s the same. The canvas doesn’t appear on the screen
                    0_1522616850740_invisible_canvas.png

                    I’m wondering if a parent CSS config or something like could be the reason.

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                    • S Offline
                      sispheor
                      last edited by

                      It’s good it works!! For the last lib I just forgot to call the draw method.

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