Namespace: PP;
PP.ZoomOptions
The ZoomOptions class is used to set up visual component zoom options.
To get an object of this class, use the Chart.getZoom method.
To set up visual component zoom options:
Set zoom value using the ZoomOptions.setZoom method or the Zoom property in the ZoomOptions constructor.
Select one of the methods of applying the specified zoom by means of CSS using the ZoomOptions.setIsOnlyPosition method or the IsOnlyPosition property in the ZoomOptions constructor:
true. Zoom is applied in the zoom field, for example, zoom: 0.5.
NOTE. The zoom field is not supported in Mozilla Firefox.
false. Default value. Zoom is applied in the transform field, for example, transform: scale(0.5).
The zoom value specified in the zoom or transform field should match with the value of the ZoomOptions.setZoom method or the Zoom property.
Specify the field that is used as a method for applying the specified zoom using the ZoomOptions.setIsCssZoom method or the IsCssZoom property in the ZoomOptions constructor. The method or property value should match with the value of the ZoomOptions.setIsOnlyPosition method or the IsOnlyPosition property.
After executing the operations the specified zoom options are applied to a visual component.
NOTE. Zoom options setup is available only for charts. When zooming a chart, coordinates of cursor, tooltips, axis selections and other elements are offset according to the specified zoom value.
| Constructor name | Brief description | |
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ZoomOptions | The ZoomOptions constructor creates an instance of the ZoomOptions class. |
| Method name | Brief description | |
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The getIsCssZoom method returns whether a visual component is zoomed using the zoom or transform field specified in CSS. | |
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getIsOnlyPosition | The getIsOnlyPosition method returns the method for applying the specified zoom by means of CSS. |
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getNodeOffset | The getNodeOffset method returns coordinates of a visual component located in the browser visual area, taking into account zoom in pixels. |
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getPointOffset | The getPointOffset method returns coordinates of an element located relative to a visual component taking into account zoom in pixels. |
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getZoom | The getZoom method returns zoom value. |
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setIsCssZoom | The setIsCssZoom method determines whether a visual component is zoomed using the zoom or transform field specified in CSS. |
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setIsOnlyPosition | The setIsOnlyPosition method determines a method for applying the specified zoom value by means of CSS. |
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setZoom | The setZoom method determines a zoom value. |
| Method name | Brief description | |
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clone | The clone method creates an object copy. |
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dispose | The dispose method deletes the component. |
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getHashCode | The getHashCode method returns hash code of repository object. |
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getId | The getId method returns repository object identifier. |
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getSettings | The getSettings method returns repository object settings. |
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getTypeName | The getTypeName method returns the name of the object type without the namespace, to which it belongs. |
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isEqual | The isEqual method determines whether the specified object is equal to the current repository object. |
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isLive | The isLive method determines validity of repository object. |
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removeAllEvents | The removeAllEvents method removes all object event handlers by the specified context. |
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setId | The setId method determines a repository object identifier. |
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setSettings | The setSettings method determines repository object settings. |
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defineProps | The defineProps method creates get and set methods from name array for the specified class. |
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keys | The keys method returns array of methods and properties names for the specified object. |
See also: