# Contour and Zoned Charts

## Content

You can easily add contours and zones to 3D charts by enabling the [IsContoured](/componentone/api/win/online-chart3d/dotnet-framework-api/C1.Win.C1Chart3D.4.8/C1.Win.C1Chart3D.Chart3DContour.IsContoured.html) and [IsZoned](/componentone/api/win/online-chart3d/dotnet-framework-api/C1.Win.C1Chart3D.4.8/C1.Win.C1Chart3D.Chart3DContour.IsZoned.html) properties. These properties are located in the **Chart3DGroup Collection Editor** (IsContoured and IsZoned are under the Contour node) that can be accessed through the ChartGroups property in the .NET Properties window. For more information on the **Chart3DGroup Collection Editor**, see [Chart3DGroup Collection Editor](/componentone/docs/win/online-chart3d/3dchartdesigntimesup/c1chart3dcollectione/chart3dgroupcollecti).

### Using IsContoured Property

The Surface and Bar 3D charts behave as the following when they are contoured:

* **Surfaces**: The chart examines the distribution of the data and draws contour lines demarcating each of the contour levels.
    ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_52.png)
* **Bars**: The chart draws contour lines around the bars, demarcating each contour level.
    ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_53.png)

>type=note
> **Note**: The chart's contour levels, ContourStyles, and other contour properties can be customized.

### Using IsZoned Property

The Surface, Bar, and Scatter 3D charts behave as the following when they are zoned:

* **Surfaces**: The chart examines the distribution of the data and fills each level with a solid color.
    ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_54.png)
* **Bars**: The chart fills each level within each bar with a solid color.
    ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_55.png)
* **Scatter**: The points are colored according to their z-value.
    ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_56.png)

>type=note
> **Note**: The chart's contour levels, ContourStyles, and other zoning properties can be customized

### Using IsContoured and IsZoned Properties

You can combine contours and zones to Surfaces, Bars, and Scatter 3D charts by enabling both IsContoured and IsZoned properties.

The following table illustrates a combination of contours and zones in Surface and Bar 3D charts:

| Surface Example | Bar Example |
| --------------- | ----------- |
| ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_57.png) | ![](https://cdn.mescius.io/document-site-files/images/46396fd1-914e-43da-9cb0-e66dcc0ae61b/imagesext/image12_58.png) |

>type=note
> **Note**: The chart's contour levels, ContourStyles, and other contour and zoning properties can be customized.

## See Also

[3D Chart Data Layouts](/componentone/docs/win/online-chart3d/3dchartfundamentals/3dchartdatalayouts)