Help, my chart-problem columns

Question

hello.
i used adobe flex build 3.0. Now i had problem about my chart
i want to create LineChart. I have date. And my date update  minute by minute. My chart  have 16 spaces
: (8h-9h), (9h-10h)....(22h-23h).
I want my chart show as the picture blow:
Or
But Now i don't know how i can like.
i only created as the picture blow:
The columns are not standar, not same Identical.Pls See clear the Picture above and blow and Help me
Now my Code
<?xml version="1.0"?>
<!-- http://blog.flexexamples.com/2007/11/19 … ick-marks/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">
    <mx:Script>
        <![CDATA[
            import mx.charts.HitData;
            import mx.charts.CategoryAxis;
            import mx.charts.chartClasses.IAxis;
            import  mx.charts.GridLines;
            import mx.collections.ArrayCollection;
            import mx.graphics.Stroke;
            import mx.events.ColorPickerEvent;           
            private function linearAxis_labelFunc(item:Object, prevValue:Object, axis:IAxis):String
                return currFormatter.format(item);               
            private function categoryAxis_labelFunc(item:Object, prevValue:Object, axis:CategoryAxis, categoryItem:Object):String
                return item.valueOf().toString();            
            private function renderTips(hd:HitData):String
              return "aaaaaaaaaaaaaa bbbbbbbbbbb";
        ]]>
    </mx:Script>
    <mx:CurrencyFormatter id="currFormatter" precision="2" />  
    <mx:XMLListCollection id="dp12">
        <mx:source>
            <mx:XMLList>
                <quote date="8h" open="90.1" />
                <quote open="90.1" /> 
                <quote open="90.1" />                                
                <quote date="9h"  open="45.5" /> 
                <quote open="90.1" /> 
                <quote open="90.1" />         
                <quote date="10h" open="40.82" />                                           
                <quote date="11h" open="21.4"  />                
                <quote date="12h" open="40.41"  />              
                <quote date="13h" open="40.55"  />
                <quote date="14h" open="40.18" />             
                <quote date="15h" open="39.83"  />               
                <quote date="16h" open="40.22" /> 
                <quote open="90.1" /> 
                <quote open="90.1" />                
                <quote date="17h" open="41.01" /> 
                <quote date="18h" open="41.21"   />                
                <quote date="19h" open="32.00" />                 
                <quote date="20h" open="45.00" />               
                <quote date="21h" open="29"/>              
                <quote date="22h" open="30.00" />              
                <quote date="23h" open="40" />                             
                </mx:XMLList>
        </mx:source>
    </mx:XMLListCollection>     
    <mx:LineChart id="lineChart" showDataTips="true" color="black"
        dataProvider="{dp12}"  width="100%" height="100%" alpha="1.0"
         >
        <!-- background elements -->
        <mx:backgroundElements>
            <mx:GridLines id="gridLines" toolTip="Tony adam" direction="both"
                horizontalTickAligned="true" themeColor="red" alpha="5">                              
                <mx:horizontalFill>
                    <mx:SolidColor color="white" alpha="5.0"  />
                </mx:horizontalFill>               
                <mx:horizontalAlternateFill>
                    <mx:SolidColor color="white" alpha="5.0" />
                </mx:horizontalAlternateFill>                                             
            </mx:GridLines>
        </mx:backgroundElements>
        <!-- vertical axis -->
        <mx:verticalAxis>
            <mx:LinearAxis baseAtZero="true"
                    title="Price"
                     />
        </mx:verticalAxis>
        <!-- horizontal axis -->
        <mx:horizontalAxis>
            <mx:CategoryAxis id="ca"
                    categoryField="@date"
                    title="Tháng 6 Năm 2009"
                    />
        </mx:horizontalAxis>
        <!-- horizontal axis renderer -->
       <mx:horizontalAxisRenderers>
            <!--<mx:AxisRenderer axis="{ca}" canDropLabels="false" />-->
            <mx:AxisRenderer canDropLabels="true" placement="bottom"
            axis="{ca}" tickPlacement="inside"
            tickLength="100" minorTickPlacement="inside"
            minorTickLength="15"      
            />   
        </mx:horizontalAxisRenderers>
        <!-- series -->
        <mx:series>                              
             <mx:LineSeries yField="@open" displayName="open" xField="@date"
                 interpolateValues="true" form="curve" themeColor="black">
              <mx:lineStroke>
                    <mx:Stroke color="#3333FF" weight="1" alpha="3.1" scaleMode="vertical"/>               
             </mx:lineStroke>
             </mx:LineSeries>     
        </mx:series>      
        <!-- series filters -->
        <mx:seriesFilters>
            <mx:Array />
        </mx:seriesFilters>
    </mx:LineChart>   
</mx:Application>

Answer 1

altenbach, Thanks a ton for your assistance. I have gained serious insight by examining how you approached this. I am able to see how my thinking was somewhat flawed. Here is the vi I used to write the file. I have also included another sample .bin file (which needs to be renamed to .bin), and a subvi I built to generate filenames based on time stamps.
This is part of a system we are trying to build to monitor some of our equipment 24/7. The plan is to use this data to monitor long term degradation of the equipment in order to perform preventive maintenance, before problems occur. I work in a Nuclear plant, so problems can be serious...
In the final application the "Trigger" will be set by a physical input. For example, when a fuelling machine component is commanded to move we will start the data acquisition and when the machine is commanded to stop, the acqusition stops. The plan is to archive all of the data, and any analysis would be done by the system engineers later.
We would like to able to examine the entire data file which would be captured. A typical movement of our machine might last for as long as 2 minutes. We want to capture all of this time period, but we might need to examine only a couple of seconds anywhere within this window.
Thanks again for your insight. 5 Stars across the board....
technomage
Attachments:
12-09-2006-074635.txt ‏766 KB
write.vi ‏82 KB
Filename Generator.vi ‏20 KB