Dashboard - Pie chart visualization (#701)

Author: rsill-neo4j

modules/ROOT/content-nav.adoc

@@ -101,6 +101,7 @@ Generic Start
 *** xref:dashboards/visualizations/table.adoc[Table]
 *** xref:dashboards/visualizations/linechart.adoc[Line chart]
 *** xref:dashboards/visualizations/barchart.adoc[Bar chart]
+*** xref:dashboards/visualizations/piechart.adoc[Pie chart]
 //** xref:dashboards/advanced-features/index.adoc[Advanced features]
 //*** xref:dashboards/advanced-features/parameters.adoc[Parameters and interactivity]
 //*** xref:dashboards/advanced-features/rule-based-styling.adoc[Rule-based styling]

modules/ROOT/images/dashboards/visualization-pie-chart.png

@@ -8,9 +8,7 @@ Configure the graph layout and nodes, relationships, labels and colors to your l
 You can drag and drop nodes in the displayed graph.
 
 
-== Examples
-
-=== Basic table
+== Example
 
 
 .Cypher query for a graph which displays products which are part of the "produce" category

modules/ROOT/pages/dashboards/visualizations/graph.adoc

@@ -0,0 +1,26 @@
+= Pie chart
+:description: The Neo4j dashboard pie chart visualization.
+
+A pie chart displays different categories and values as slices of a circular disc.
+Choose the following:
+
+* *Category*: a text field. Categories are the labels of the pie slices.
+* *Value*: a numeric field. This determines the size of the slices.
+
+== Example
+
+
+.Cypher query for a pie chart which displays the number of products per category
+[source,cypher]
+----
+MATCH (p:Product)-[:PART_OF]->(c:Category)
+RETURN c.categoryName AS Category, count(p) AS Products LIMIT 20
+----
+
+.A pie chart displaying the number of products per category
+image::dashboards/visualization-pie-chart.png[]
+
+
+== Configuration
+
+Select your **Category** for the pie slice labels and a **Value** for size of the pie slices.

modules/ROOT/pages/dashboards/visualizations/piechart.adoc

@@ -17,9 +17,9 @@ Tables support the following additional features:
 When you hover over a table cell, a copy icon appears towards the end of the cell which lets you copy the content of the table cell to the clipboard.
 
 
-== Examples
+== Example
 
-=== Basic table
+//=== Basic table
 
 .Cypher query for a table which displays the number of products per category
 [source,cypher]