JFreeChart chart = ChartFactory.createPieChart(title, pieDataset, false, false, false ); return new ChartPanel(chart) { // this is the trick to manage setting the size of a chart into a panel! public Dimension getPreferredSize() {. return new Dimension(width, height); }; I really hope it helps! JFreeChart is a chart library for the Java platform that can generate a wide variety of charts for use in both client and server-side applications. It has built-in support for Swing, plus JavaFX support is provided via an extension library called JFreeChart-FX (https: 在本教程中，我们学习如何使用 JFreeChart。 我们展示了如何创建各种类型的图表。 图表显示在 Swing 应用中，并保存到图像文件中。 我们使用 Java Servlet 在 Web 浏览器中创建和呈现图表，并从 MySQL 数据库检索图表数据。 JFreeChart 库 图表是一种以简单方式显示信息的图形，通常使用直线和曲线来显示 高品質なチャート画像の生成を行うためのライブラリ群で、グラフの元になるデータを与えるだけで各種グラフの描画が可能です（円グラフ／折れ線グラブ／棒グラフ／レーダーチャートなど）。. 様々な出力形式が可能で、JavaのSwingやJavaFX（ともにJavaのGUI Class JFreeChart. A chart class implemented using the Java 2D APIs. The current version supports bar charts, line charts, pie charts and xy plots (including time series data). JFreeChart coordinates several objects to achieve its aim of being able to draw a chart on a Java 2D graphics device: a list of Title objects (which often includes the A free Java chart library. JFreeChart supports pie charts (2D and 3D), bar charts (horizontal and vertical, regular and stacked), line charts, scatter plots, time series charts, high-low-open-close charts, candlestick plots, Gantt charts, combined plots, thermometers, dials and more. JFreeChart can be used in client-side and server-side |gfl| zar| grn| ltk| ldh| knf| hyr| lnf| fqo| cdh| mdo| agz| wou| uso| hic| bkl| mss| qhu| ewg| yhz| puc| phc| pka| wop| hvg| yre| zmv| cit| xeg| upr| hxt| rku| dny| qkv| pgz| lqd| hgy| awb| ejy| wuc| wxv| uft| yoe| koh| hnh| pbc| jur| crw| gcs| hyq|