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  • Your email address will not be published.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: December 11, 2014 @ 1:00 p.m. ET / 10:00 a.m. PT Market pressures to move more quickly and develop innovative applications are forcing organizations to rethink how they develop and release applications. The combination of public clouds and physical back-end infrastructures are a means to get applications out faster. However, these hybrid solutions complicate DevOps adoption, with application delivery pipelines that span across complex hybrid cloud and non-cloud environments. Check out this …

  • VMware vCloud® Government Service provided by Carpathia® is an enterprise-class hybrid cloud service that delivers the tried and tested VMware capabilities widely used by government organizations today, with the added security and compliance assurance of FedRAMP authorization. The hybrid cloud is becoming more and more prevalent – in fact, nearly three-fourths of large enterprises expect to have hybrid deployments by 2015, according to a recent Gartner analyst report. Learn about the benefits of …

Most Popular Programming Stories

More for Developers

RSS Feeds