| Pakket | mx.charts |
| Klasse | public class LogAxis |
| Overerving | LogAxis  NumericAxis AxisBase EventDispatcher Object |
| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
minimum, maximum,
and interval values from the charting data
to fit all of the chart elements on the screen.
You can also explicitly set specific values for these properties.
A LogAxis object cannot correctly render negative values,
as Log10() of a negative number is undefined.
MXML-syntaxis
MXML-syntaxis weergeven
MXML-syntaxis verbergenThe <mx:LogAxis> tag inherits all the properties
of its parent classes and adds the following properties:
<mx:LogAxis
Properties
interval="10"
maximum="null"
maximumLabelPrecision="null"
minimum="null"
/>
Meer voorbeelden
Verwante API-elementen
Openbare eigenschappen
| Eigenschap | Gedefinieerd door | ||
|---|---|---|---|
 | autoAdjust : Boolean
Specifies whether Flex rounds values. | NumericAxis | |
| baseAtZero : Boolean
Specifies whether Flex tries to keep the minimum
and maximum values rooted at zero. | NumericAxis | |
| baseline : Number [alleen-lezen]
The computed minimum value for the axis
as long as this value is greater than 0. | NumericAxis | |
| chartDataProvider : Object [alleen-schrijven]
The data provider assigned to the enclosing chart. | AxisBase | |
| computedMaximum : Number
The computed maximum value represented by this axis. | NumericAxis | |
| computedMinimum : Number
The computed minimum value represented by this axis. | NumericAxis | |
| constructor : Object
Verwijzing naar het klasseobject of de constructorfunctie van een bepaalde objectinstantie. | Object | |
| direction : String
Determines the direction in which the axis is rendered. | NumericAxis | |
| displayName : String
The name of the axis. | AxisBase | |
| interval : Number
Specifies the multiplier label values along the axis. | LogAxis | ||
| labelFunction : Function
Called to format axis values for display as labels. | NumericAxis | |
| maximum : Number
Specifies the maximum value for an axis label. | LogAxis | ||
| maximumLabelPrecision : Number
Specifies the maximum number of decimal places for representing fractional
values on the labels generated by this axis. | LogAxis | ||
| minimum : Number
Specifies the minimum value for an axis label. | LogAxis | ||
| minorTicks : Array [alleen-lezen]
An Array of minor tick marks generated to represent this axis. | NumericAxis | |
| padding : Number
Specifies padding that Flex adds to the calculated minimum and maximum
values for the axis when rendering the values on the screen. | NumericAxis | |
| parseFunction : Function
Specify a parseFunction to customize how
the values rendered by your chart are converted into numeric values. | NumericAxis | |
| title : String
The text for the title displayed along the axis. | AxisBase | |
| unitSize : Number [alleen-lezen]
The size of one unit of data as represented by this axis. | AxisBase | |
Beschermde eigenschappen
Openbare methoden
| Methode | Gedefinieerd door | ||
|---|---|---|---|
LogAxis()
Constructor. | LogAxis | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registreert een gebeurtenislistenerobject bij een object EventDispatcher, zodat de listener een melding van een gebeurtenis ontvangt. | EventDispatcher | |
|
Triggers events that inform the range object
when the chart data has changed. | AxisBase | |
|
Verzendt een gebeurtenis naar de gebeurtenisstroom. | EventDispatcher | |
|
Filters a set of values of arbitrary type
to a set of numbers that can be mapped. | NumericAxis | |
|
Formats values for display in DataTips. | NumericAxis | |
|
Determines the range to estimate what the axis labels should be. | NumericAxis | |
|
Gets the labels text that is rendered. | NumericAxis | |
|
Controleert of het object EventDispatcher listeners heeft geregistreerd voor een specifiek type gebeurtenis. | EventDispatcher | |
|
Geeft aan of voor een object een opgegeven eigenschap is gedefinieerd. | Object | |
|
Maps a position along the axis back to a numeric data value. | NumericAxis | |
|
Geeft aan of een instantie van de klasse Object zich in de prototypeketen van het object bevindt dat als parameter is opgegeven. | Object | |
|
Converts a set of values of arbitrary type
to a set of numbers that can be transformed into screen coordinates. | NumericAxis | |
|
Determines how the axis handles overlapping labels. | NumericAxis | |
|
Geeft aan of de opgegeven eigenschap bestaat en kan worden opgesomd. | Object | |
|
Invoked when an AxisRenderer is unable to cleanly render
the labels without overlap, and would like the Axis object
to reduce the set of labels. | NumericAxis | |
|
Each DataTransform that makes use of an axis
registers itself with that axis. | AxisBase | |
|
Verwijdert een listener uit het object EventDispatcher. | EventDispatcher | |
|
Stelt de beschikbaarheid van een dynamische eigenschap voor lusbewerkingen in. | Object | |
|
Geeft de tekenreeksweergave van dit object weer, geformatteerd volgens de locatiespecifieke conventies. | Object | |
|
Retourneert een tekenreeksrepresentatie van het opgegeven object. | Object | |
|
Maps a set of values from data space to screen space. | NumericAxis | |
|
Each DataTransform that makes use of an axis
registers itself with that axis. | AxisBase | |
|
Updates the chart. | NumericAxis | |
|
Retourneert de primitieve waarde van het opgegeven object. | Object | |
|
Controleert of een gebeurtenislistener is geregistreerd bij dit object EventDispatcher of een van de voorouders voor het opgegeven type gebeurtenis. | EventDispatcher | |
Beschermde methoden
Gebeurtenissen
Eigenschapdetails
interval | eigenschap |
interval:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Specifies the multiplier label values along the axis.
A value of 10 generates labels at 1, 10, 100, 1000, etc.,
while a value of 100 generates labels at 1, 100, 10000, etc.
Flex calculates the interval if this property
is set to NaN.
Intervals must be even powers of 10, and must be greater than or equal to 10.
The LogAxis rounds the interval down to an even power of 10, if necessary.
De standaardwaarde is 10.
Implementatie
public function get interval():Number public function set interval(value:Number):voidmaximum | eigenschap |
maximum:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Specifies the maximum value for an axis label.
If NaN, Flex determines the maximum value
from the data in the chart.
The maximum value must be an even power of 10.
The LogAxis rounds an explicit maximum value
up to an even power of 10, if necessary.
De standaardwaarde is NaN.
Implementatie
public function get maximum():Number public function set maximum(value:Number):voidmaximumLabelPrecision | eigenschap |
maximumLabelPrecision:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Specifies the maximum number of decimal places for representing fractional values on the labels generated by this axis. By default, the Axis autogenerates this value from the labels themselves. A value of 0 round to the nearest integer value, while a value of 2 rounds to the nearest 1/100th of a value.
Implementatie
public function get maximumLabelPrecision():Number public function set maximumLabelPrecision(value:Number):voidminimum | eigenschap |
minimum:Number| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Specifies the minimum value for an axis label.
If NaN, Flex determines the minimum value
from the data in the chart.
The minimum value must be an even power of 10.
The LogAxis will round an explicit minimum value
downward to an even power of 10 if necessary.
De standaardwaarde is NaN.
Implementatie
public function get minimum():Number public function set minimum(value:Number):voidConstructordetails
LogAxis | () | Constructor |
public function LogAxis()| Taalversie: | ActionScript 3.0 |
| Productversie: | Flex 3 |
| Runtimeversies: | Flash Player 9, AIR 1.1 |
Constructor.
Voorbeelden Hoe dit voorbeeld te gebruiken
LogAxisExample.mxml
<?xml version="1.0"?>
<!-- Simple example to demonstrate the LogAxis class. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import mx.collections.ArrayCollection;
[Bindable]
private var expensesAC:ArrayCollection = new ArrayCollection( [
{ Month: "Jan", Profit: 20000, Expenses: 1500, Amount: 450 },
{ Month: "Feb", Profit: 1000, Expenses: 15000, Amount: 600 },
{ Month: "Mar", Profit: 15000, Expenses: 5000, Amount: 300 },
{ Month: "Apr", Profit: 1800, Expenses: 1200, Amount: 900 },
{ Month: "May", Profit: 2400, Expenses: 575, Amount: 500 } ]);
]]>
</fx:Script>
<mx:Panel title="LogAxis Example" height="100%" width="100%">
<mx:LineChart id="linechart" height="100%" width="100%"
paddingLeft="5" paddingRight="5"
showDataTips="true" dataProvider="{expensesAC}">
<mx:horizontalAxis>
<mx:CategoryAxis categoryField="Month"/>
</mx:horizontalAxis>
<mx:verticalAxis>
<mx:LogAxis interval="10"/>
</mx:verticalAxis>
<mx:series>
<mx:LineSeries yField="Profit" form="curve" displayName="Profit"/>
<mx:LineSeries yField="Expenses" form="curve" displayName="Expenses"/>
<mx:LineSeries yField="Amount" form="curve" displayName="Amount"/>
</mx:series>
</mx:LineChart>
<mx:Legend dataProvider="{linechart}"/>
</mx:Panel>
</s:Application>
Wed Jun 13 2018, 11:42 AM Z