Thanks a lot.
Where did you get the original LineSeries code? All I have is the swc
file...
On Fri, Nov 21, 2008 at 10:20 PM, Brendan Meutzner <[EMAIL PROTECTED]>wrote:
> package range_charts.extended_series
> {
> import mx.charts.HitData;
> import mx.charts.chartClasses.CartesianTransform;
> import mx.charts.series.LineSeries;
> import mx.charts.series.items.LineSeriesItem;
> import mx.graphics.IStroke;
> import mx.graphics.LinearGradientStroke;
> import mx.graphics.Stroke;
>
> public class CustomLineSeries extends LineSeries
> {
> override public function
> findDataPoints(x:Number,y:Number,sensitivity:Number):Array
> {
> // esg, 8/7/06: if your mouse is over a series when it gets added
> and displayed for the first time, this can get called
> // before updateData, and before and render data is constructed.
> The right long term fix is to make sure a stubbed out
> // render data is _always_ present, but that's a little disruptive
> right now.
> if (interactive == false || !renderData)
> return [];
> var pr:Number = getStyle("radius");
> var minDist2:Number = pr + sensitivity;
> minDist2 *= minDist2;
> var minItem:LineSeriesItem = null;
> var pr2:Number = pr * pr;
>
> var len:int = renderData.filteredCache.length;
> if (len == 0)
> return [];
> if(sortOnXField == true)
> {
> var low:Number = 0;
> var high:Number = len;
> var cur:Number = Math.floor((low+high)/2);
>
> var bFirstIsNaN:Boolean = isNaN(renderData.filteredCache[0]);
>
> while (true)
> {
> var v:LineSeriesItem = renderData.filteredCache[cur];
> if (!isNaN(v.yFilter) && !isNaN(v.xFilter))
> {
> //var dist:Number = (v.x - x)*(v.x - x) + (v.y -
> y)*(v.y -y);
> var dist:Number = (v.x - x)*(v.x - x) ;
> if (dist <= minDist2)
> {
> minDist2 = dist;
> minItem = v;
> }
> }
>
> if (v.x < x || (isNaN(v.x) && bFirstIsNaN))
> {
> low = cur;
> cur = Math.floor((low + high)/2);
> if (cur == low)
> break;
> }
> else
> {
> high = cur;
> cur = Math.floor((low + high)/2);
> if (cur == high)
> break;
> }
> }
> }
> else
> {
> var i:uint;
> for (i=0;i<len;i++)
> {
> v = renderData.filteredCache[i];
> if (!isNaN(v.yFilter) && !isNaN(v.xFilter))
> {
> //dist = (v.x - x)*(v.x - x) + (v.y - y)*(v.y -y);
> dist = (v.x - x)*(v.x - x) ;
> if (dist <= minDist2)
> {
> minDist2 = dist;
> minItem = v;
> }
> }
> }
> }
>
> if (minItem)
> {
> var hd:HitData = new
> HitData(createDataID(minItem.index),Math.sqrt(minDist2),minItem.x,minItem.y,minItem);
> var istroke:IStroke = getStyle("lineStroke");
> if (istroke is Stroke)
> hd.contextColor = Stroke(istroke).color;
> else if (istroke is LinearGradientStroke)
> {
> var gb:LinearGradientStroke =
> LinearGradientStroke(istroke);
> if (gb.entries.length > 0)
> hd.contextColor = gb.entries[0].color;
> }
> hd.dataTipFunction = formatDataTip;
> return [ hd ];
> }
> return [];
> }
>
>
> private function formatDataTip(hd:HitData):String
> {
> var dt:String = "";
>
> var n:String = displayName;
> if (n && n != "")
> dt += "<b>" + n + "</b><BR/>";
> var xName:String =
> dataTransform.getAxis(CartesianTransform.HORIZONTAL_AXIS).displayName;
> if (xName != "")
> dt += "<i>" + xName+ ":</i> ";
> dt +=
> dataTransform.getAxis(CartesianTransform.HORIZONTAL_AXIS).formatForScreen(
> LineSeriesItem(hd.chartItem).xValue) + "\n";
>
> var yName:String =
> dataTransform.getAxis(CartesianTransform.VERTICAL_AXIS).displayName;
> if (yName != "")
> dt += "<i>" + yName + ":</i> ";
> dt +=
> dataTransform.getAxis(CartesianTransform.VERTICAL_AXIS).formatForScreen(
> LineSeriesItem(hd.chartItem).yValue) + "\n";
>
> return dt;
> }
>
>
> }
> }
>
>
>
> <custom_series:CustomLineSeries id="baseSeries" name="Reading Value"
> xField="readingDate" yField="reading" displayName="Reading Value"
> stroke="{new Stroke(0xFF0000, 0)}"
> fill="{new SolidColor(0xFF0000, 0.6)}" lineStroke="{new
> Stroke(0xFF0000, 1)}" form="curve" interpolateValues="false"
> lineSegmentRenderer="mx.charts.renderers.LineRenderer"
> radius="2"
> />
>
>
>
>
>
> On Fri, Nov 21, 2008 at 1:48 PM, Sefi Ninio <[EMAIL PROTECTED]> wrote:
>
>> Hi Brendan,
>>
>> Could you maybe paste your implementation of the extending class?
>>
>> Thanks,
>> Sefi
>>
>> On Fri, Nov 21, 2008 at 8:41 PM, Sefi Ninio <[EMAIL PROTECTED]> wrote:
>>
>>> Hi Brendan
>>>
>>> Thanks for the reply, I'll give it a try.
>>>
>>> Sefi
>>>
>>>
>>> On Fri, Nov 21, 2008 at 6:34 PM, Brendan Meutzner <[EMAIL PROTECTED]>wrote:
>>>
>>>> Claude Hussenet has come up with a solution for this. Here's the
>>>> past post.
>>>>
>>>> http://tech.groups.yahoo.com/group/flexcoders/message/90045
>>>>
>>>> I've used and it works great.
>>>>
>>>>
>>>> Brendan
>>>>
>>>>
>>>>
>>>> On Fri, Nov 21, 2008 at 4:56 AM, Sefi Ninio <[EMAIL PROTECTED]>wrote:
>>>>
>>>>> Hey,
>>>>>
>>>>> I have a chart set up and using dataTipFunction to format the datatips.
>>>>> It works great.
>>>>> However, what I'd really like, is to display the datatips for all the
>>>>> series for the current x axis value the mouse pointer is over (and only
>>>>> those).
>>>>> Example: if the mouse pointer is over x value 10, and I have 3 line
>>>>> series in that chart, then all 3 points correlating to x value 10 will
>>>>> have
>>>>> their datatips visible.
>>>>>
>>>>> There are a few issues with this:
>>>>> 1. I don't have an easy way to translate mouse pointer location on
>>>>> mouse over to the relevant x axis value.
>>>>> 2. Once I (hopefully) get the x value, I'd also have to have all y
>>>>> values for the series (relatively simple).
>>>>> 3. If I get here, I'll have to think of a way to cause the points to
>>>>> show their datatip and ofcourse clear all previous open datatips...
>>>>>
>>>>> any ideas on either of those points?
>>>>>
>>>>> Thanks,
>>>>> Sefi
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Brendan Meutzner
>>>> http://www.meutzner.com/blog/
>>>>
>>>
>>>
>>
>
>
> --
> Brendan Meutzner
> http://www.meutzner.com/blog/
>
>
