- 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
Line Chart with visibile points
Following is an example of a Basic Line Chart with visibile points.
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 basic line chart with visibile points.
Configurations
We've used pointSize configuration to change size of points. Default is 0.
options.setPointSize(5);
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.LineChart; import com.googlecode.gwt.charts.client.corechart.LineChartOptions; import com.googlecode.gwt.charts.client.options.HAxis; import com.googlecode.gwt.charts.client.options.VAxis; public class HelloWorld implements EntryPoint { private LineChart chart; private void initialize() { ChartLoader chartLoader = new ChartLoader(ChartPackage.CORECHART); chartLoader.loadApi(new Runnable() { public void run() { // Create and attach the chart chart = new LineChart(); RootPanel.get().add(chart); draw(); } }); } private void draw() { // Prepare the data DataTable data = DataTable.create(); data.addColumn(ColumnType.STRING, "Month"); data.addColumn(ColumnType.NUMBER, "Tokyo"); data.addColumn(ColumnType.NUMBER, "New York"); data.addColumn(ColumnType.NUMBER, "Berlin"); data.addColumn(ColumnType.NUMBER, "Berlin"); data.addRow("Jan", 7.0, -0.2, -0.9, 3.9); data.addRow("Feb", 6.9, 0.8, 0.6, 4.2); data.addRow("Mar", 9.5, 5.7, 3.5, 5.7); data.addRow("Apr", 14.5, 11.3, 8.4, 8.5); data.addRow("May", 18.2, 17.0, 13.5, 11.9); data.addRow("Jun", 21.5, 22.0, 17.0, 15.2); data.addRow("Jul", 25.2, 24.8, 18.6, 17.0); data.addRow("Aug", 26.5, 24.1, 17.9, 16.6); data.addRow("Sep", 23.3, 20.1, 14.3, 14.2); data.addRow("Oct", 18.3, 14.1, 9.0, 10.3); data.addRow("Nov", 13.9, 8.6, 3.9, 6.6); data.addRow("Dec", 9.6, 2.5, 1.0, 4.8); // Set options LineChartOptions options = LineChartOptions.create(); options.setTitle("Average Temperatures of Cities"); options.setHAxis(HAxis.create("Month")); options.setVAxis(VAxis.create("Temperature")); options.setPointSize(5); // Draw the chart chart.draw(data,options); chart.setWidth("400px"); chart.setHeight("400px"); } public void onModuleLoad() { initialize(); } }
Result
Verify the result.
gwt_googlecharts_line_charts.htm
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