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    Highcharts can be used free for non-commercial projects:<br>
    <br>
    <a class="moz-txt-link-freetext" href="https://www.highcharts.com/products/highcharts/#non-commercial">https://www.highcharts.com/products/highcharts/#non-commercial</a><br>
    <br>
    …but is quite fat, as well as chart.js and FusionCharts.<br>
    <br>
    Chartist-js is my current preference.<br>
    <br>
    Gauges can be done otherwise, but they also don't need to be super
    fancy. Canvas Gauges needs 13 kB gzipped, which is quite a lot for
    just gauges.<br>
    <br>
    <a class="moz-txt-link-freetext" href="http://bernii.github.io/gauge.js/">http://bernii.github.io/gauge.js/</a> would be my choice, that's just
    4.8 kB gzipped. Maybe the gauge charts in chartist-js even are
    sufficient, with some extra lines of code to add a pointer, but
    another 4.8 kB wouldn't hurt too much given the just 10 kB of
    chartist.<br>
    <br>
    Regards,<br>
    Michael<br>
    <br>
    <br>
    <div class="moz-cite-prefix">Am 05.03.2018 um 03:19 schrieb Mark
      Webb-Johnson:<br>
    </div>
    <blockquote type="cite"
      cite="mid:26029CB5-6AA1-4383-8562-EE4E14EB349B@webb-johnson.net">
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      I use highcharts in my day job. Good, but expensive and not easily
      licensable for embedded. Open Source would also be a better fit.
      <div class=""><br class="">
      </div>
      <div class="">I suspect that avoiding commercial charting
        libraries will limit our choice.</div>
      <div class=""><br class="">
      </div>
      <div class="">Maybe splitting the requirements into two would help
        (rather than trying to find one that does both):</div>
      <div class=""><br class="">
      </div>
      <div class="">
        <ol class="MailOutline">
          <li class="">Charts (bar, line, pie, etc)<br class="">
            <br class="">
            <a href="http://www.chartjs.org/" class=""
              moz-do-not-send="true">http://www.chartjs.org/</a><br
              class="">
            <a href="https://gionkunz.github.io/chartist-js/index.html"
              class="" moz-do-not-send="true">https://gionkunz.github.io/chartist-js/index.html</a><br
              class="">
            <br class="">
          </li>
          <li class="">Gauges<br class="">
            <br class="">
            <a href="https://canvas-gauges.com/" class=""
              moz-do-not-send="true">https://canvas-gauges.com/</a><br
              class="">
          </li>
        </ol>
        <div><br class="">
        </div>
        <div>I’m certainly looking for something similar for the App
          side.</div>
        <div><br class="">
        </div>
        <div>Regards, Mark</div>
        <div><br class="">
          <blockquote type="cite" class="">
            <div class="">On 5 Mar 2018, at 2:43 AM, Michael Balzer <<a
                href="mailto:dexter@expeedo.de" class=""
                moz-do-not-send="true">dexter@expeedo.de</a>> wrote:</div>
            <br class="Apple-interchange-newline">
            <div class="">
              <div class="">Steve,<br class="">
                <br class="">
                yes, we definitely should include a charting lib, so we
                can do nice real time dashboards and statistics.<br
                  class="">
                <br class="">
                I need to check some new projects first. I've been using
                Flot for business backends, but it's become very
                outdated now.<br class="">
                <br class="">
                New libs to check currently on my list:<br class="">
                <br class="">
                - <a href="http://www.chartjs.org/" class=""
                  moz-do-not-send="true">http://www.chartjs.org/</a><br
                  class="">
                - <a
                  href="https://gionkunz.github.io/chartist-js/index.html"
                  class="" moz-do-not-send="true">https://gionkunz.github.io/chartist-js/index.html</a><br
                  class="">
                - <a href="https://www.highcharts.com/" class=""
                  moz-do-not-send="true">https://www.highcharts.com/</a><br
                  class="">
                - <a href="https://www.fusioncharts.com/" class=""
                  moz-do-not-send="true">https://www.fusioncharts.com/</a><br
                  class="">
                <br class="">
                Regards,<br class="">
                Michael<br class="">
                <br class="">
                <br class="">
                Am 04.03.2018 um 17:49 schrieb Stephen Casner:<br
                  class="">
                <blockquote type="cite" class="">Michael,<br class="">
                  <br class="">
                  Is there a graphing package that would be feasible to
                  include in our web server?<br class="">
                  <br class="">
                  -- Steve<br class="">
                  <br class="">
                  <br class="">
                  _______________________________________________<br
                    class="">
                  OvmsDev mailing list<br class="">
                  <a href="mailto:OvmsDev@lists.teslaclub.hk" class=""
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                    class="">
                </blockquote>
                <br class="">
                -- <br class="">
                Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal<br
                  class="">
                Fon 02333 / 833 5735 * Handy 0176 / 206 989 26<br
                  class="">
                <br class="">
                <br class="">
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          </blockquote>
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    <br>
    <pre class="moz-signature" cols="160">-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26
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