I have implemented the following and I still have an issue with the
windows resizing.
It seems that I have to flush something which is related to the segment
list which is computed between 2 updates.I am getting an nice fireworks
during the window resizing that I don't get during panning or zooming.I
wish I could share a screenshoot.;-)
Here the code.Sorry,I can send any attach file today.
////////////////////////////////////////////////////////////////////////\
////////////////////
public class Graph extends LineSeries
{
override protected function get renderDataType():Class
{
return MyLineSeriesRenderData;
}
override protected function updateFilter():void
{
super.updateFilter();
var
myLineSeriesRenderData:MyLineSeriesRenderData=this.renderData as
MyLineSeriesRenderData;
myLineSeriesRenderData.prePxielFilteredCache=null;
}
override protected function updateTransform():void
{
super.updateTransform();
var t0:int = new Date().milliseconds;
var
myLineSeriesRenderData:MyLineSeriesRenderData=this.renderData as
MyLineSeriesRenderData;
if
(myLineSeriesRenderData.prePxielFilteredCache==null)myLineSeriesRenderDa\
ta.prePxielFilteredCache=this.renderData.filteredCache;
var x0:int=myLineSeriesRenderData.prePxielFilteredCache[0].x;
var y0:int=myLineSeriesRenderData.prePxielFilteredCache[0].y;
var npnts:Array = new Array();
npnts.push(myLineSeriesRenderData.prePxielFilteredCache[0]);
for (var
i:int=1;i<myLineSeriesRenderData.prePxielFilteredCache.length;i++)
{
var
x1:int=myLineSeriesRenderData.prePxielFilteredCache[i].x;
var
y1:int=myLineSeriesRenderData.prePxielFilteredCache[i].y;
if (x0!=x1 || y0!=y1)
{
npnts.push(myLineSeriesRenderData.prePxielFilteredCache[i]);
x0=x1;
y0=y1;
}
}
myLineSeriesRenderData.filteredCache=npnts;
var t1:int = new Date().milliseconds;
trace(new Date().toString()+"
"+myLineSeriesRenderData.prePxielFilteredCache.length+"/"+npnts.length+"
in "+(t1-t0)+" (ms)");
}
}
////////////////////////////////////////////////////////////////////////\
////////////////////
public class MyLineSeriesRenderData extends LineSeriesRenderData
{
public var prePxielFilteredCache:Array=null;
}
////////////////////////////////////////////////////////////////////////\
////////////////////
--- In flexcoders@yahoogroups.com, "Claude Hussenet" <[EMAIL PROTECTED]>
wrote:
>
> What is the way to filter points in a line serie after the point is
> transformed from the "data space" to the "screen/mouse space" ?
>
> Is is by adding a filter function in a lineserie through the method
> filters from a serie ?
>
> Is there an example available ?
>
> I am interested in filtering a point in the screen space based on the
> previous value computed .
>
>
> Thank you for your help.
> Regards-CLaude
>
