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ioBroker/Blockly/CardChart_History.js

@@ -0,0 +1,50 @@
+var sourceDP = 'alias.0.Wohnzimmer.Heizung.ACTUAL';
+var targetDP = '0_userdata.0.Test.chartTest';
+var rangeHours = 24;
+var maxXAchsisTicks = 6;
+var historyInstance = 'history.0';
+
+on({id: sourceDP, change: "any"}, async function (obj) {
+    sendTo(historyInstance, 'getHistory', {
+        id: sourceDP,
+        options: {
+            start:     Date.now() - (60 * 60 * 1000 * rangeHours),
+            end:       Date.now(),
+            count:     rangeHours,
+            limit:     rangeHours,
+            aggregate: 'average'
+        }
+    }, function (result) {
+        var cardChartString = "";
+        var stepXAchsis = rangeHours / maxXAchsisTicks;
+
+        for (var i = 0; i < rangeHours; i++){
+            var deltaHour = rangeHours - i;
+            var targetDate = new Date(Date.now() - (deltaHour * 60 * 60 * 1000));
+
+            //Check history items for requested hours
+            for (var j = 0, targetValue = 0; j < result.result.length; j++) {
+                var valueDate = new Date(result.result[j].ts);
+                var value = (Math.round(result.result[j].val * 10) / 10);
+
+                if (valueDate > targetDate){                        
+                    if ((targetDate.getHours() % stepXAchsis) == 0){
+                        cardChartString += targetValue + '^' + targetDate.getHours() + ':00' + '~';
+                    } else {
+                        cardChartString += targetValue + '~';
+                    }
+                    break;
+                } else {
+                    targetValue = value;
+                }
+            }
+        }
+        
+        cardChartString = cardChartString.substring(0,cardChartString.length-1);
+        if (existsState(targetDP) == false ) { 
+            createState(targetDP, cardChartString, true, { type: 'string' });
+        } else {
+            setState(targetDP, cardChartString, true);
+        }
+    });    
+});