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Chart to Image
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Rendering Charts
Aspose.Cells for Python via .NET APIs support converting Excel charts to image formats without requiring any additional tools or applications. In order to provide rendering support, the Chart class has exposed to_image methods with a variety of overloads to best suit the application requirements.
Rendering Charts to Images
The Chart.to_image method has a variety of overloads to support simple as well as advanced rendering. If the application requirement is to render the chart in its default dimensions, we suggest you use the Chart.to_image method as follows.
It is also possible to render the charts to images with advanced settings. Aspose.Cells for Python via .NET APIs have exposed an overload version of Chart.to_image method that can accept an instance of ImageOrPrintOptions, allowing you to specify parameters such as resolution, smoothing mode, image format, and so on.
Supported Chart Types for Rendering
There are a few chart types that are currently not supported for rendering. Such chart types contain N in the Supported column of the table below.
| Chart type | Chart sub-type | Supported |
|---|---|---|
| Column | Column | Y |
| ColumnStacked | Y | |
| Column100PercentStacked | Y | |
| Column3DClustered | Y | |
| Column3DStacked | Y | |
| Column3D100PercentStacked | Y | |
| Column3D | Y | |
| Bar | Bar | Y |
| BarStacked | Y | |
| Bar100PercentStacked | Y | |
| Bar3DClustered | Y | |
| Bar3DStacked | Y | |
| Bar3D100PercentStacked | Y | |
| Line | Line | Y |
| LineStacked | Y | |
| Line100PercentStacked | Y | |
| LineWithDataMarkers | Y | |
| LineStackedWithDataMarkers | Y | |
| Line100PercentStackedWithDataMarkers | Y | |
| Line3D | Y | |
| Pie | Pie | Y |
| Pie3D | Y | |
| PiePie | Y | |
| PieExploded | Y | |
| Pie3DExploded | Y | |
| PieBar | Y | |
| Scatter | Scatter | Y |
| ScatterConnectedByCurvesWithDataMarker | Y | |
| ScatterConnectedByCurvesWithoutDataMarker | Y | |
| ScatterConnectedByLinesWithDataMarker | Y | |
| ScatterConnectedByLinesWithoutDataMarker | Y | |
| Area | Area | Y |
| AreaStacked | Y | |
| Area100PercentStacked | Y | |
| Area3D | Y | |
| Area3DStacked | Y | |
| Area3D100PercentStacked | Y | |
| Doughnut | Doughnut | Y |
| DoughnutExploded | Y | |
| Radar | Radar | Y |
| RadarWithDataMarkers | Y | |
| RadarFilled | Y | |
| Surface | Surface3D | N |
| SurfaceWireframe3D | N | |
| SurfaceContour | N | |
| SurfaceContourWireframe | N | |
| Bubble | Bubble | Y |
| Bubble3D | N | |
| Stock | StockHighLowClose | Y |
| StockOpenHighLowClose | Y | |
| StockVolumeHighLowClose | Y | |
| StockVolumeOpenHighLowClose | Y | |
| Cylinder | Cylinder | Y |
| CylinderStacked | Y | |
| Cylinder100PercentStacked | Y | |
| CylindricalBar | Y | |
| CylindricalBarStacked | Y | |
| CylindricalBar100PercentStacked | Y | |
| CylindricalColumn3D | Y | |
| Cone | Cone | Y |
| ConeStacked | Y | |
| Cone100PercentStacked | Y | |
| ConicalBar | Y | |
| ConicalBarStacked | Y | |
| ConicalBar100PercentStacked | Y | |
| ConicalColumn3D | Y | |
| Pyramid | Pyramid | Y |
| PyramidStacked | Y | |
| Pyramid100PercentStacked | Y | |
| PyramidBar | Y | |
| PyramidBarStacked | Y | |
| PyramidBar100PercentStacked | Y | |
| PyramidColumn3D | Y | |
| BoxWhisker | BoxWhisker | Y |
| Funnel | Funnel | Y |
| ParetoLine | ParetoLine | Y |
| Sunburst | Sunburst | Y |
| Treemap | Treemap | Y |
| Waterfall | Waterfall | Y |
| Histogram | Histogram | Y |
| Map | Map | N |
In case you try to render the unsupported chart types to an image or PDF, you may end up with zero‑sized images or a blank PDF.