Creating Charts and Pie Graphs using Data with Holes



Click here for larger image



Click here for larger image

Environment: VC 6, SP 4, Windows 2000

Introduction

In my work, I always want to display several data series with holes together. Massimo Colurcio has developed a control to display data with a hole, but it is not easy to use, especially when the data is very sparse, so I decided to develop my own control based on his work. At the same time, I also want to show this data series in a pie chart fashion.

How to Use the Application

Follow these steps to set up and use the Chart and Pie project:

  1. Add the files in the source package to your project.
  2. Do initilization. See CChartView::OnInitialUpdate().
  3. Call Add of CDataChart to add datasets to the control.

Use the following code as shown below:

void Add(int nDatasetID, int nIndex, double nData);

SetStyle(STYLE_LINE)
to display a line chart, or
SetStyle(STYLE_PIE)
to display a pie chart.

And that's all.

Downloads

Download demo project - 62 Kb
Download source - 17 Kb


Comments

  • Debug Assertion Failed

    Posted by Legacy on 01/20/2003 12:00am

    Originally posted by: Allen.WeiHao

    When you resize the chart view to a comparable small size, the program corrupt.

    Reply
  • Detected memory leaks!

    Posted by Legacy on 05/11/2002 12:00am

    Originally posted by: Chile

    Detected memory leaks!
    Dumping objects ->
    F:\MyProject\VC\ChartnPie\DataChart.cpp(1433) : {267} normal block at 0x00347CD0, 28 bytes long.
    Data: < > 02 00 00 00 02 00 00 00 02 00 00 00 01 00 00 00
    Object dump complete.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: November 20, 2014 @ 2:00 p.m. ET / 11:00 a.m. PT Are you wanting to target two or more platforms such as iOS, Android, and/or Windows? You are not alone. 90% of enterprises today are targeting two or more platforms. Attend this eSeminar to discover how mobile app developers can rely on one IDE to create applications across platforms and approaches (web, native, and/or hybrid), saving time, money, and effort and introducing apps to market faster. You'll learn the trade-offs for gaining long …

  • IBM Worklight is a mobile application development platform that lets you extend your business to mobile devices. It is designed to provide an open, comprehensive platform to build, run and manage HTML5, hybrid and native mobile apps.

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds