Defines the labels, tick marks, and data position for items on the x-axis. Use either the LinearAxis class or the CategoryAxis class to set the properties of the angularAxis as a child tag in MXML or create a LinearAxis or CategoryAxis object in ActionScript.

The DataTransform object that the element is associated with. A DataTransform object represents an association between a set of elements and a set of axis objects used to transform those elements from data space to screen coordinates and back. A chart element uses its associated DataTransform object to calculate how to render its data.

If true, the computed range of the chart is affected by this canvas.

Defines the labels, tick marks, and data position for items on the y-axis. Use either the LinearAxis class or the CategoryAxis class to set the properties of the angular axis as a child tag in MXML or to create a LinearAxis or CategoryAxis object in ActionScript.

Constructor

If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.

Parâmetros

If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.

For exemplo, the following exemplo shows three display objects, labeled a, b, and c, at index positions 0, 2, and 1, respectively:

If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.

Parâmetros

This adds any DisplayObject as child to current canvas

Parâmetros

Coordinate are in terms of the angularAxis or radialAxis properties of the canvas.

Parâmetros

Veja também

Parâmetros

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Clears the canvas.

You do not call this method directly. Flex calls the commitProperties() method when you use the addChild() method to add a component to a container, or when you call the invalidateProperties() method of the component. Calls to the commitProperties() method occur before calls to the measure() method. This lets you set property values that might be used by the measure() method.

Some components have properties that affect the number or kinds of child objects that they need to create, or have properties that interact with each other, such as the horizontalScrollPolicy and horizontalScrollPosition properties. It is often best at startup time to process all of these properties at one time to avoid duplicating work.

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Parâmetros

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Veja também

Informs the canvas that the underlying data in the dataProvider has changed. This function triggers calls to the updateMapping() and updateTransform() methods on the next call to the commitProperties() method.

Parâmetros

Invalidation is a useful mechanism for eliminating duplicate work by delaying processing of changes to a component until a later screen update. For exemplo, if you want to change the width and height, it would be wasteful to update the component immediately after you change the width and then update again with the new height. It is more efficient to change both properties and then render the component with its new size once.

Invalidation methods rarely get called. In general, setting a property on a component automatically calls the appropriate invalidation method.

Parâmetros

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Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Coordinates are in terms of data rather than screen coordinates.

Parâmetros

Veja também

Removes all data children (DisplayObject instances) of the canvas.

The garbage collector reallocates unused memory space. When a variable or object is no longer actively referenced or stored somewhere, the garbage collector sweeps through and wipes out the memory space it used to occupy if no other references to it exist.

Parâmetros

The garbage collector reallocates unused memory space. When a variable or object is no longer actively referenced or stored somewhere, the garbage collector sweeps through and wipes out the memory space it used to occupy if no other references to it exist.

Parâmetros

Removes any item from the provided cache whose field property is NaN. Derived classes can call this method from their updateFilter() implementation to remove any ChartItems filtered out by the axes.

Parâmetros

Updates the position of any child to current canvas.

Parâmetros

          var lbl:Label = new Label();
          lbl.text = "Last Month";
          canvas.addChild(lbl);
          canvas.updateDataChild(lbl,200,20);
     

You do not call this method directly. Flex calls the updateDisplayList() method when the component is added to a container using the addChild() method, and when the component's invalidateDisplayList() method is called.

If the component has no children, this method is where you would do programmatic drawing using methods on the component's Graphics object such as graphics.drawRect().

If the component has children, this method is where you would call the move() and setActualSize() methods on its children.

Components may do programmatic drawing even if they have children. In doing either, you should use the component's unscaledWidth and unscaledHeight as its bounds.

It is important to use unscaledWidth and unscaledHeight instead of the width and height properties.

Parâmetros