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From "Gareth Daniel Smith (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLEX-33141) CartesianChart renders an extra axis when a chart is created with no axis and then some axis are added later
Date Fri, 20 Jul 2012 10:50:33 GMT

    [ https://issues.apache.org/jira/browse/FLEX-33141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419052#comment-13419052
] 

Gareth Daniel Smith commented on FLEX-33141:
--------------------------------------------

I have created this class as a work-around for the issue:

import mx.charts.LineChart;
import mx.core.mx_internal;

use namespace mx_internal;

public class PatchedLineChart extends LineChart {

    public function PatchedLineChart() {
    }

    override public function set verticalAxisRenderers(value:Array):void {
        super.verticalAxisRenderers = value;
        if (value.length > 0) {
            super.verticalAxisRenderer = null;
        }
    }

    override public function set horizontalAxisRenderers(value:Array):void {
        super.horizontalAxisRenderers = value;
        if (value.length > 0) {
            super.horizontalAxisRenderer = null;
        }
    }
}
                
> CartesianChart renders an extra axis when a chart is created with no axis and then some
axis are added later
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: FLEX-33141
>                 URL: https://issues.apache.org/jira/browse/FLEX-33141
>             Project: Apache Flex
>          Issue Type: Bug
>          Components: Charts:Multiple Axes
>    Affects Versions: Adobe Flex SDK 4.5 (Release)
>         Environment: Mac OS X
>            Reporter: Gareth Daniel Smith
>            Priority: Minor
>
> I have a use-case where a LineChart is created with series=[] and then later on, after
the chart has been displayed to the user, the series changed to be non-empty. Essentially
I have a GUI that shows a user an empty chart and then allows the user to add series to it.
> When the chart is created without any series then a default axis is shown. This is OK.
The issue is that this default axis does not go away when some real series (with their associated
axis) are added to the chart.
> I think this happens because of the first few lines in CartesianChart.commitProperties
which create default horizontal/vertical axisRenderers if there are none in the user-supplied
horizontal/vertical axisRenderers array. I think the problem is that horizontalAxisRenderer/verticalAxisRenderer
never get set back to null when the user-supplied axis renderers arrays are changed to be
none-empty.

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