Qt 5.7 | Qt Bluetooth | Bluetooth Low Energy Heart Listener Example | draw.js Example File

Qt 5.7.1 Reference Documentation

# draw.js Example File

heartlistener/assets/draw.js

      /***************************************************************************
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      ** This file is part of the QtBluetooth module of the Qt Toolkit.
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      var component;
      var size = 0;
      var counter = 0;
      var difference = 0;

      function start() {
          size = heartRate.measurementsSize();
          difference = (plot.width-topbar.width)/size;
          console.log(size +" "+ plot.width);
          for (var i = 0; i< size; i++) {
              var value = heartRate.measurements(i);

              drawIt(value);
              counter++;
          }
      }

      function drawIt(value) {
          if (component == null)
                 component = Qt.createComponent("Point.qml");
          if (component.status == Component.Ready) {
              var dynamicObject = component.createObject(plot);
                      if (dynamicObject == null) {
                          console.log("error creating block");
                          console.log(component.errorString());
                          return false;
                      }
                      dynamicObject.x = 10+(counter*difference);
                      console.log(plot.height)
                     dynamicObject.y = plot.height -value;

          }
      }