# Using Contour Data with 4D Bars Charts

## Content



When you are using contour data with 4D Bar chart, the following occurs:

*   When a set of contour data is added to a Bar chart and the [IsZoned](/componentone/api/win/online-chart3d/dotnet-framework-api/C1.Win.C1Chart3D.4.8/C1.Win.C1Chart3D.Chart3DContour.IsZoned.html) Contour property is set, each bar is drawn with one color (determined by the zoned height of the bar) instead of being drawn as separate colored segments.
*   Contours are never drawn when contour data is added.

![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_91.png)

## See Also

[3D Labels](/componentone/docs/win/online-chart3d/3dlabels)