Work in progress

server.go

@@ -58,12 +58,14 @@ func executeQuery(rw http.ResponseWriter, req *http.Request) {
 
 	response := jsonQueryResponse{
 		Count:   len(foundEntries),
-		Ranges:  make(map[string]jsonRange),
 		Columns: make(map[string]jsonColumn),
 		Records: make([]jsonRecord, 0)}
 
 	for name, value := range features {
-		column := jsonColumn{Value: value, Steps: request.Resolution}
+		column := jsonColumn{
+			Bracket: jsonBracket{Max: -1, Min: 1},
+			Value:   value,
+			Steps:   request.Resolution}
 
 		hints := project(
 			entries,
@@ -77,23 +79,17 @@ func executeQuery(rw http.ResponseWriter, req *http.Request) {
 			column.Hints = append(column.Hints, jsonHint)
 		}
 
+		for _, record := range foundEntries {
+			if feature, ok := record.features[name]; ok {
+				column.Bracket.Max = math.Max(column.Bracket.Max, feature)
+				column.Bracket.Min = math.Min(column.Bracket.Min, feature)
+			}
+		}
+
 		response.Columns[name] = column
 	}
 
 	for index, record := range foundEntries {
-		for feature, value := range record.features {
-			rng, ok := response.Ranges[feature]
-			if ok {
-				rng.Max = math.Max(rng.Max, value)
-				rng.Min = math.Min(rng.Min, value)
-			} else {
-				rng.Max = value
-				rng.Min = value
-			}
-
-			response.Ranges[feature] = rng
-		}
-
 		if index >= request.MaxResults {
 			break
 		}

static/scripts/grapher.js

@@ -96,6 +96,7 @@
         var _onValueChanged = params.onValueChanged;
         var _range          = params.range;
         var _scale          = params.scale;
+        var _bracket        = params.bracket;
         var _elements       = {};
 
         function createShapes() {
@@ -121,16 +122,6 @@
                 stroke: _borderColor
             });
 
-            // bracket
-            _elements.bracket = _canvas.rect(
-                _width - _bracketSize,
-                0,
-                _bracketSize,
-                _height - _panelSize
-            ).attr({
-                fill: '#ff0000'
-            });
-
             // panel
             _elements.panel = _canvas.rect(
                 _tickSize,
@@ -163,6 +154,26 @@
                 fill: computeIndicatorColor(_data.value)
             }).click(clicked);
 
+            console.log(_data);
+
+            // bracketMin
+            _elements.bracketMin = _canvas.circle(
+                _width - _bracketSize / 2,
+                valueToIndicator(_data.bracket.min),
+                5
+            ).attr({
+                fill: '#0000ff'
+            });
+
+            // bracketMax
+            _elements.bracketMax = _canvas.circle(
+                _width - _bracketSize / 2,
+                valueToIndicator(_data.bracket.max),
+                5
+            ).attr({
+                fill: '#ff0000'
+            });
+
             // tick
             if (_range.contains(0.0)) {
                 var origin = valueToIndicator(0.0);
@@ -180,7 +191,8 @@
                 _elements.backdrop,
                 _elements.indicator,
                 _elements.density,
-                _elements.bracket,
+                _elements.bracketMin,
+                _elements.bracketMax,
                 _elements.panel,
                 _elements.tick,
                 _elements.label
@@ -204,6 +216,16 @@
             _valueAnimated = value;
         }
 
+        function updateBracket() {
+            _elements.bracketMin.attr({
+                y: _data.bracket.min
+            });
+
+            _elements.bracketMax.attr({
+                y: _data.bracket.max
+            });
+        }
+
         function updateDensity() {
             var fill = _backdropColor;
             if (_data.hints.length > 0) {
@@ -313,6 +335,10 @@
                 _data.hints = data.hints;
                 updateDensity();
             }
+            if (_.has(data, 'bracket')) {
+                _data.bracket = data.bracket;
+                updateBracket();
+            }
         };
 
         createShapes();

static/scripts/search.js

@@ -119,8 +119,9 @@
                     var column = results.columns[feature];
                     _ctx.query.features[feature] = column.value;
                     columns[feature] = {
-                        value: column.value,
-                        hints: column.hints
+                        value:   column.value,
+                        hints:   column.hints,
+                        bracket: column.bracket
                     };
                 }
 

types.go

@@ -49,9 +49,10 @@ type jsonQueryRequest struct {
 }
 
 type jsonColumn struct {
-	Hints []jsonProjection `json:"hints"`
-	Steps int              `json:"steps"`
-	Value float64          `json:"value"`
+	Bracket jsonBracket      `json:"bracket"`
+	Hints   []jsonProjection `json:"hints"`
+	Steps   int              `json:"steps"`
+	Value   float64          `json:"value"`
 }
 
 type jsonProjection struct {
@@ -72,7 +73,7 @@ type jsonRecord struct {
 	Url            string  `json:"url"`
 }
 
-type jsonRange struct {
+type jsonBracket struct {
 	Min float64 `json:"min"`
 	Max float64 `json:"max"`
 }
@@ -80,7 +81,6 @@ type jsonRange struct {
 type jsonQueryResponse struct {
 	Columns map[string]jsonColumn `json:"columns"`
 	Count   int                   `json:"count"`
-	Ranges  map[string]jsonRange  `json:"ranges"`
 	Records []jsonRecord          `json:"records"`
 }