Revize 8cca41c0

Re #8775 - Agregovat grafy se stejným typem sensoru

• graph loading decomposition
• some bugs fixed

src/vega/body/linechart.json

@@ -5 +5 @@
     {},
     {},
     {
-      "name": "timeunit",
+      "name": "ranks",
       "source": "table",
       "transform": [
         {
-          "type": "timeunit",
-          "field": "dateTime",
-          "units": ["year","month", "date", "hours", "minutes", "seconds"],
-          "step": {"signal": "timeStep"}
+          "type": "window",
+          "sort": {
+            "field": "dateTime",
+            "order": "ascending"
+          },
+          "ops": [
+            "rank"
+          ],
+          "fields": [
+            "value"
+          ],
+          "as": [
+            "rank"
+          ]
+        },
+        {
+          "type": "formula",
+          "expr": "datum.rank + 1",
+          "as": "nextRank"
         }
       ]
     },
     {
       "name": "lookup",
-      "source": "timeunit",
-      "transform":[
+      "source": "ranks",
+      "transform": [
         {
           "type": "lookup",
-          "from": "timeunit",
-          "key": "unit0",
-          "fields": ["unit1"],
-          "as": ["obj"]
+          "from": "table",
+          "key": "rank",
+          "fields": [
+            "nextRank"
+          ],
+          "as": [
+            "nextObj"
+          ]
+        },
+        {
+          "type": "lookup",
+          "from": "table",
+          "key": "rank",
+          "fields": [
+            "prevRank"
+          ],
+          "as": [
+            "prevObj"
+          ]
+        },
+        {
+          "type": "formula",
+          "expr": "(datum.nextObj == null || datum.nextObj.dateTime - datum.dateTime > maxTimeDifference) ? null : datum.nextObj",
+          "as": "obj"
+        },
+        {
+          "type": "formula",
+          "expr": "datum.prevObj == null ?  data('range')[0].dateMin : (time(datum.prevObj.dateTime) + time(datum.dateTime)) / 2",
+          "as": "dateStart"
+        },
+        {
+          "type": "formula",
+          "expr": "datum.nextObj == null ?  data('range')[0].dateMax : (time(datum.nextObj.dateTime) + time(datum.dateTime)) / 2",
+          "as": "dateEnd"
         }
       ]
     }
   ],
+
+  "signals": [
+    {},
+    {},
+    {
+      "name": "tooltipSignal",
+      "value": {},
+      "on": [
+        {
+          "events": "@tooltip-hitarea:mouseover",
+          "update": "datum"
+        },
+        {
+          "events": "@tooltip-hitarea:mouseout",
+          "update": "{}"
+        }
+      ]
+    }
+  ],
+
   "marks": [
     {
       "scales": [
@@ -38 +103 @@
           "name": "yDetail",
           "type": "linear",
           "range": [390, 0],
-          "domain": {"data": "range", "field": "valueMax"},
+          "domain": {
+            "fields": [
+              {"data": "range", "field": "valueMax"},
+              {"data":  "table", "field": "value"}
+            ]
+          },
           "nice": true, "zero": true
         }
       ],
@@ -49 +119 @@
       "marks": [
         {
           "marks": [
+            {
+              "name": "tooltip-hitarea",
+              "type": "rect",
+              "interactive": true,
+              "from": {
+                "data": "lookup"
+              },
+              "encode": {
+                "enter": {
+                  "tooltip": {
+                    "signal": null
+                  }
+                },
+                "update": {
+                  "x": {
+                    "scale": "xDetail",
+                    "field": "dateStart"
+                  },
+                  "x2": {
+                    "scale": "xDetail",
+                    "field": "dateEnd"
+                  },
+                  "y": {
+                    "scale": "yDetail",
+                    "band": 1
+                  },
+                  "y2": {
+                    "scale": "yDetail",
+                    "value": 0
+                  },
+                  "fill": {
+                    "value": "#00ff00"
+                  },
+                  "fillOpacity": {
+                    "value": 0.0
+                  }
+                }
+              }
+            },
             {
               "type": "symbol",
-              "from": {"data":"table"},
+              "from": {"data":"lookup"},
               "encode": {
                 "enter": {
                   "tooltip": {
@@ -65 +174 @@
                   "color": {"value": "both"},
                   "strokeWidth": {"value": 4},
                   "fill": {"value": "steelblue"}
-                },
-                "hover": {
-                  "fill": {"value": "red"},
-                  "size": {"value": 60}
                 }
               }
             },
@@ -81 +186 @@
                 "update": {
                   "x": {
                     "scale": "xDetail",
-                    "field": "unit0"
+                    "field": "dateTime"
                   },
                   "x2": [
                     {
                       "test": "isValid(datum.obj)",
                       "scale": "xDetail",
-                      "field": "obj.unit0"
+                      "field": "obj.dateTime"
                     },
                     {
                       "scale": "xDetail",
-                      "field": "unit0"
+                      "field": "dateTime"
                     }
                   ],
                   "y": {
@@ -117 +222 @@
                   }
                 }
               }
+            },
+
+            {
+              "type": "rule",
+              "interactive": false,
+              "zindex": 20,
+              "encode": {
+                "enter": {
+                },
+                "update": {
+                  "x": {
+                    "scale": "xDetail",
+                    "signal": "tooltipSignal.dateTime"
+                  },
+                  "y": {
+                    "scale": "yDetail",
+                    "band": 1
+                  },
+                  "y2": {
+                    "scale": "yDetail",
+                    "value": 0
+                  },
+                  "strokeOpacity": [
+                    {
+                      "test": "tooltipSignal.dateTime > 1",
+                      "value": 1
+                    },
+                    {
+                      "value": 0
+                    }
+                  ]
+                }
+              }
             }
           ]
         }
@@ -166 +304 @@
             "update": {
               "x": {
                 "scale": "xOverview",
-                "field": "unit0"
+                "field": "dateTime"
               },
               "x2": [
                 {
                   "test": "isValid(datum.obj)",
                   "scale": "xOverview",
-                  "field": "obj.unit0"
+                  "field": "obj.dateTime"
                 },
                 {
                   "scale": "xOverview",
-                  "field": "unit0"
+                  "field": "dateTime"
                 }
               ],
               "y": {