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    Scheduled Pinned Locked Moved Dashboard
    custom widgetguagedashboard
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    • T Offline
      Tag MOD
      last edited by jkandasa

      This HTML script will give you a gauge that will change color based on the value of the scale in percentage.
      The script below has a scale range 0-5000. (I use it to measure my KWH usage)....

      Here is the trick i experimented with

      limitMax: 'false', 
        percentColors: [[0.0, "#a9d70b" ], [0.80, "#f9c802"], [1.0, "#ff0000"]], // !!!!
        strokeColor: '#b0b0b0',
          generateGradient: true
      

      From 0% - 80% the scale is green to yellow at the 80%, the from 80%-100% it will rapidly change to red....

      Green: #a9d70b
      Orange #f9c802
      Red #ff0000
      

      I also made the value font, bold by adding this ; font-weight:bold

      And with this line you can set the maximum value of the gauge gauge.maxValue = 5000; lower it to something that comes close to the max value you want to measure.

      Really nice effect!

      -------------- Cut ----------------

      <div id="wrapper" style="text-align: center">    
        <canvas id="my-gauge-${uuid}" style="display: inline-block;"></canvas>
        <div style="font-size:21px ; font-weight:bold" id="textfield--${uuid}"></div>
      </div>
      <script>
        var opts = {
            lines: 12,
        angle: 0.05,
        lineWidth: 0.44,
        pointer: {
          length: 0.9,
          strokeWidth: 0.035,
          color: '#303030'
          },
      limitMax: 'false', 
        percentColors: [[0.0, "#a9d70b" ], [0.80, "#f9c802"], [1.0, "#ff0000"]], // !!!!
        strokeColor: '#b0b0b0',
          generateGradient: true
        };
        var target = document.getElementById('my-gauge-${uuid}'); // your canvas element
        var gauge = new Gauge(target).setOptions(opts); // create sexy gauge!
        gauge.animationSpeed = 3; // set animation speed (32 is default value)
        gauge.maxValue = 5000; //Maximum value
        gauge.setTextField(document.getElementById("textfield--${uuid}"));
        gauge.set(${temperatureSen.value}); // set actual value
      </script>
      
      <!--see http://jsfiddle.net/berni/Yb4d7/ for example-->
      

      -------------- Cut ----------------

      1 Reply Last reply Reply Quote 1
      • R Offline
        Redferne @jkandasa
        last edited by

        @jkandasa

        Thanks for showing this. It makes it very versatile. However for the Temperature example above, how do I get all decimals? I'd like the Temperature to show for example "23.45°C"

        ///Redferne

        jkandasaJ 1 Reply Last reply Reply Quote 0
        • jkandasaJ Offline
          jkandasa @Redferne
          last edited by

          @Redferne

          how do I get all decimals? I'd like the Temperature to show for example "23.45°C"

          I guess it is limitation of http://bernii.github.io/gauge.js/dist/gauge.min.js or we may have some option to show decimal points. Kindly refer http://bernii.github.io/gauge.js

          R 1 Reply Last reply Reply Quote 0
          • R Offline
            Redferne @jkandasa
            last edited by

            @jkandasa

            Nope, Gauge handles decimals and negative values just fine. See here:
            http://jsfiddle.net/berni/smNjl/

            jkandasaJ 1 Reply Last reply Reply Quote 0
            • jkandasaJ Offline
              jkandasa @Redferne
              last edited by jkandasa

              @Redferne

              Can you try this line

                gauge.set(${temperatureSen.value}); // set actual value
              
              

              with this,

                gauge.set(parseFloat(${temperatureSen.value})); // set actual value
              
              1 Reply Last reply Reply Quote 0
              • R Offline
                Redferne
                last edited by jkandasa

                @jkandasa said:

                gauge.set(parseFloat(${temperatureSen.value}));

                Solution was little more complicated:

                <div id="wrapper" style="text-align: center">    
                  <canvas id="my-gauge-${uuid}" style="display: inline-block;"></canvas>
                  <div style="font-size:21px" id="textfield--${uuid}"></div>
                </div>
                <script>
                  var CustomTextRenderer = function(el){
                    this.el = el;
                    this.render = function(gauge) {
                      this.el.innerHTML = gauge.displayedValue.toPrecision(3);
                     }
                  }
                  CustomTextRenderer.prototype = new TextRenderer();
                  var cs = new CustomTextRenderer(document.getElementById("textfield--${uuid}"));
                  var opts = {
                    lines: 32,
                    angle: 0,
                    lineWidth: 0.24,
                    pointer: {
                      length: 0.9,
                      strokeWidth: 0.035,
                      color: '#000066'
                    },
                    limitMax: 'false', 
                    percentColors: [[0.0, "#2B31CF" ], [0.60, "#37CF32"], [1.0, "#ff0000"]],
                    strokeColor: '#E0E0E0',
                    generateGradient: true
                  };
                  var target = document.getElementById('my-gauge-${uuid}');
                  var gauge = new Gauge(target).setOptions(opts);
                  gauge.animationSpeed = 3;
                  gauge.maxValue = 40.0;
                  gauge.setMinValue(-30.0);
                  gauge.setTextField(new CustomTextRenderer(document.getElementById("textfield--${uuid}")))
                  gauge.set(${temperatureSen.value});
                </script>
                
                1 Reply Last reply Reply Quote 1
                • E Offline
                  esawyja
                  last edited by

                  Hi all,
                  Brilliant program @jkandasa , I'm having some issues with the gauge display, I don't see the gauge when I test the template. I'm using Firefox, cleared the history and cache. even tried it with Microsoft Edge, but my gauge does not display. Rebooted the RaspBerry PI as well, I don't see any errors in the logs etc, could someone point me in the right direction please, see screenshots below
                  Regards

                  0_1483438450608_image.png

                  0_1483438485395_image.png

                  0_1483438519652_image.png

                  0_1483438562379_image.png

                  0_1483438603778_image.png

                  1 Reply Last reply Reply Quote 0
                  • E Offline
                    esawyja
                    last edited by

                    The location of the gauge.min.js
                    0_1483438777925_image.png

                    jkandasaJ 1 Reply Last reply Reply Quote 0
                    • jkandasaJ Offline
                      jkandasa @esawyja
                      last edited by

                      @esawyja You have to add gauge.min.js as mentioned here,
                      0_1470030993827_upload-7a773b78-c825-47f5-9784-c8a9a830a015.

                      Once done, reload your browser.

                      1 Reply Last reply Reply Quote 0
                      • E Offline
                        esawyja
                        last edited by

                        Hi
                        Sorry yes I did, I just forgot to include the screenshot, still not seeing the gauge, any other suggestions please

                        0_1483439762387_image.png

                        jkandasaJ 1 Reply Last reply Reply Quote 0
                        • jkandasaJ Offline
                          jkandasa @esawyja
                          last edited by

                          @esawyja can you post your gauge HTML template and javaScript code?

                          1 Reply Last reply Reply Quote 0
                          • E Offline
                            esawyja
                            last edited by jkandasa

                            Sure, see below
                            0_1483440109921_image.png

                            Below is the template file

                            <div id="wrapper" style="text-align: center">    
                              <canvas id="my-gauge-${uuid}" style="display: inline-block;"></canvas>
                              <div style="font-size:21px" id="textfield--${uuid}"></div>
                            </div>
                            <script>
                              var CustomTextRenderer = function(el){
                                this.el = el;
                                this.render = function(gauge) {
                                  this.el.innerHTML = gauge.displayedValue.toPrecision(3);
                                 }
                              }
                              CustomTextRenderer.prototype = new TextRenderer();
                              var cs = new CustomTextRenderer(document.getElementById("textfield--${uuid}"));
                              var opts = {
                                lines: 32,
                                angle: 0,
                                lineWidth: 0.24,
                                pointer: {
                                  length: 0.9,
                                  strokeWidth: 0.035,
                                  color: '#000066'
                                },
                                limitMax: 'false', 
                                percentColors: [[0.0, "#2B31CF" ], [0.60, "#37CF32"], [1.0, "#ff0000"]],
                                strokeColor: '#E0E0E0',
                                generateGradient: true
                              };
                              var target = document.getElementById('my-gauge-${uuid}');
                              var gauge = new Gauge(target).setOptions(opts);
                              gauge.animationSpeed = 3;
                              gauge.maxValue = 40.0;
                              gauge.setMinValue(-30.0);
                              gauge.setTextField(new CustomTextRenderer(document.getElementById("textfield--${uuid}")))
                              gauge.set(${temperatureSen.value});
                            </script>
                            
                            jkandasaJ 1 Reply Last reply Reply Quote 0
                            • jkandasaJ Offline
                              jkandasa @esawyja
                              last edited by

                              @esawyja I use this lib and works as expected for your script, https://cdnjs.cloudflare.com/ajax/libs/gauge.js/1.2.1/gauge.min.js

                              0_1483441169722_upload-ea83be23-e0e8-44dd-8622-a64a9d44d960

                              E 1 Reply Last reply Reply Quote 0
                              • E Offline
                                esawyja @jkandasa
                                last edited by

                                mmmh ok, then it must be something else
                                0_1483441444970_image.png

                                Still getting nothing
                                0_1483441499925_image.png

                                Even using Microsoft edge after clearing browser cache, history etc
                                0_1483441642806_image.png

                                1 Reply Last reply Reply Quote 0
                                • E Offline
                                  esawyja
                                  last edited by

                                  This is how I clear the cache

                                  0_1483441886704_image.png

                                  jkandasaJ 1 Reply Last reply Reply Quote 0
                                  • jkandasaJ Offline
                                    jkandasa @esawyja
                                    last edited by jkandasa

                                    @esawyja I have updated this script on our demo server too. You can have a look at http://demo.mycontroller.org/#/dashboard, you can see a dashboard named esawyja

                                    Steps:

                                    1. Create UID tag for your temperature sensor
                                    2. Create Javascript to return value to HTML template
                                    3. Create HTML template
                                    4. Add you javaScript on script files, reload MC server page on your browser
                                    5. Create custom widget with template(step#3) and script(step#2), done! 🙂

                                    IMPORTANT: I believe you are with latest SNAPSHOT version.

                                    1 Reply Last reply Reply Quote 0
                                    • E Offline
                                      esawyja
                                      last edited by

                                      aaah ok, so it is something on my computer locally, do you need any external programs etc to display this, I don't see the gauge on the demo server either

                                      0_1483442497075_image.png

                                      jkandasaJ 1 Reply Last reply Reply Quote 0
                                      • jkandasaJ Offline
                                        jkandasa @esawyja
                                        last edited by

                                        @esawyja Yes, I see the issue with firefox. I am most of the time with google chrome, hence did not notice this issue.

                                        Thank you for your patience. I will check why this is not happening in FF browser.

                                        1 Reply Last reply Reply Quote 0
                                        • E Offline
                                          esawyja
                                          last edited by

                                          No thank you for the wonderful support, let me download Chrome and see what happens

                                          1 Reply Last reply Reply Quote 1
                                          • E Offline
                                            esawyja
                                            last edited by

                                            Ok confirmed, issue is with FF, works with Chrome

                                            0_1483442927485_image.png

                                            jkandasaJ 1 Reply Last reply Reply Quote 1
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