![GWT Google Charts Tutorial](/gwt_googlecharts/images/gwt-google-charts-mini-logo.jpg)
- GWT Google Charts Tutorial
- GWT Google Charts - Home
- GWT Google Charts - Overview
- Environment Setup
- Configuration Syntax
- GWT Google Charts - Area Charts
- GWT Google Charts - Bar Charts
- GWT Google Charts - Bubble Charts
- GWT Google Charts - Candlestick
- GWT Google Charts - Column Charts
- GWT Google Charts - Combination
- GWT Google Charts - Histogram
- GWT Google Charts - Line Charts
- GWT Google Charts - Maps
- GWT Google Charts - Organization
- GWT Google Charts - Pie Charts
- GWT Google Charts - Sankey Charts
- GWT Google Charts - Scatter Chart
- GWT Google Charts - Stepped Area
- GWT Google Charts - Table Chart
- GWT Google Charts - TreeMap Chart
- GWT Google Charts Resources
- GWT Google Charts - Quick Guide
- GWT Google Charts - Resources
- GWT Google Charts - Discussion
Area Chart with negative values
Following is an example of a Area Chart with negative values.
We have already seen the configurations used to draw a chart in Google Charts Configuration Syntax chapter. Now, let us see an example of a Area Chart with negative values.
Configurations
We've used AreaChart class to show area based chart with negative values.
// area chart AreaChart chart = new AreaChart();
Example
HelloWorld.java
package com.tutorialspoint.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.RootPanel; import com.googlecode.gwt.charts.client.ChartLoader; import com.googlecode.gwt.charts.client.ChartPackage; import com.googlecode.gwt.charts.client.ColumnType; import com.googlecode.gwt.charts.client.DataTable; import com.googlecode.gwt.charts.client.corechart.AreaChart; public class HelloWorld implements EntryPoint { private AreaChart chart; private void initialize() { ChartLoader chartLoader = new ChartLoader(ChartPackage.CORECHART); chartLoader.loadApi(new Runnable() { public void run() { // Create and attach the chart chart = new AreaChart(); RootPanel.get().add(chart); draw(); } }); } private void draw() { // Prepare the data DataTable data = DataTable.create(); data.addColumn(ColumnType.STRING, "Year"); data.addColumn(ColumnType.NUMBER, "Sales"); data.addColumn(ColumnType.NUMBER, "Expenses"); data.addRow("2013", 1000, 400); data.addRow("2014", -1170, 460); data.addRow("2015", -660, 1120); data.addRow("2016", 1030, 540); // Draw the chart chart.draw(data); chart.setWidth("400px"); chart.setHeight("400px"); } public void onModuleLoad() { initialize(); } }
Result
Verify the result.
![Area Chart with negative values](/gwt_googlecharts/images/gwt_googlecharts_area_negative.jpg)
gwt_googlecharts_area_charts.htm
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