• Categories
    • Recent
    • Tags
    • Popular
    • Register
    • Login

    Custom widget

    Scheduled Pinned Locked Moved Dashboard
    custom widgetguagedashboard
    43 Posts 5 Posters 27.4k Views 3 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.
    • T Offline
      Tag MOD
      last edited by

      Many thnks for the great explanation!!

      I setup the example and played around with it and it works fine in chrome on my PC, however on my chrome book and phone, the graph stays empty...In both non working browsers, javascript is enabled and the example shown here http://jsfiddle.net/berni/Yb4d7/ works in both browsers.

      any idea what could be the issue here?

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

        @Tag Have you refreshed your browser in your chrome book and on your phone(F5) and clear cache. If it is not working till, can see any error on console?

        1 Reply Last reply Reply Quote 0
        • T Offline
          Tag MOD
          last edited by

          YEAY!! victory, clearing all cache and refresh worked on the chrome book

          thanks!

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

                                            1

                                            Online

                                            599

                                            Users

                                            530

                                            Topics

                                            3.4k

                                            Posts
                                            Copyright © 2015-2025 MyController.org | Contributors | Localization