Re: [flexcoders] Re: Hands-on charts
Mark -
Thanks - I'll take a look at that.
- Tom
mark_g_wales wrote:
Tom,
I tried to take an excerpt of some existing code so there may be more
imports, etc. that are needed. Hopefully this is the effect you were
looking for...
?xml version=1.0 encoding=utf-8?
mx:Application xmlns:mx=http://www.adobe.com/2006/mxml
http://www.adobe.com/2006/mxml xmlns:local=*
mx:Script
![CDATA[
import mx.containers.HBox;
import mx.containers.Panel;
import mx.controls.Label;
import mx.controls.Spacer;
import mx.controls.sliderClasses.Slider;
import mx.events.IndexChangedEvent;
import mx.events.SliderEvent;
import mx.controls.HSlider;
public var oldValue:int = 0;
public var criteria:Array = new Array();
public var criteriaValues:Array = new Array();
public function addSlider():void {
var hbox:HBox = new HBox();
vbox.addChild(hbox);
var hslider:HSlider = new HSlider();
hslider.id = new String(criteria.length);
hslider.width = 400;
hslider.height = 20;
hslider.maximum = 100;
hslider.liveDragging = true;
hslider.setStyle(trackColors, [0x99, 0x99]);
hslider.addEventListener(SliderEvent.CHANGE, slideControl);
var sliderDO:DisplayObject = vbox.addChild(hslider);
criteria.push(sliderDO);
var hsliderValue:Label = new Label();
hsliderValue.id = new String(criteria.length);
hsliderValue.htmlText = font size='18'0/font;
var hsliderValueDO:DisplayObject = hbox.addChild(hsliderValue);
criteriaValues.push(hsliderValueDO);
var spacer:Spacer = new Spacer();
spacer.height = 50;
vbox.addChild(spacer);
}
public function slideControl(event:SliderEvent):void {
var currentSlider:int = new Number(event.target.id);
// Redraw the box for the slider on each change/move
vbox.graphics.beginFill(0x99, 1.0);
vbox.graphics.drawRect(event.target.x, event.target.y,
event.target.width, 20);
vbox.graphics.beginFill(0xffcc00, 1.0);
vbox.graphics.drawRect(event.target.x, event.target.y, event.value
* .01 * event.target.width, 20);
// Set display value for currently selected slider
var sliderValue:String = new String(event.value).substr(0,2);
criteriaValues[currentSlider].htmlText = font size='18' + new
String(event.value).substr(0,2) + /font;
}
]]
/mx:Script
mx:VBox id=vbox height=50% width=100%
mx:Button label=Add Slider click=addSlider() /
mx:Spacer height=50 /
/mx:VBox
/mx:Application
From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Monday, November 27, 2006 6:34 AM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Hands-on charts
Flex charts work beautifully responding to dynamic changes in data.
Using the current components, is there any way to use Flex charts to
change data?
As a conceptual model, I'm thinking of the way parametric equalizers
work in some audio programs, where it's possible to drag nodes on a
line
graph vertically or horizontally to change the parametric data.
- Tom
Re: [flexcoders] Re: Hands-on charts
Ely -
Inching forward some more...
I implemented your tracking code (very clever) but it's still unclear
how to use the Point data to rebuild the dataProvider. What is the hook
that lets the function know which item in the dataProvider array is
associated with the point data?
- Tom
Ely Greenfield wrote:
Yup. To do mouse tracking, you generally need a mouse down, mouse
move, and mouse up handler. Almost all of my code that does mouse
tracking looks like this:
someComponent mouseDown=startTracking(event); /
private function startTracking(e:MouseEvent):void
{
// listen to the systemManager so we get mouse move/up events even
when the mouse moves outside the component.
// listen on capture so we can cancel move/rollover events going
to other components.
systemManager.addEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.addEventListener(MouseEvent.MOUSE_UP,endTracking,true);
track(e);
}
private function track(e:MouseEvent):void
{
// update your data/UI here.
}
private function endTracking(e:MouseEvent):void
{
track(e);
// remove the event listeners until we need to track again.
systemManager.removeEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.removeEventListener(MouseEvent.MOUSE_UP,endTracking,true);
}
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
*On Behalf Of *Tom Fitzpatrick
*Sent:* Tuesday, November 28, 2006 9:37 AM
*To:* flexcoders@yahoogroups.com
*Subject:* Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual
problem. I can get the mouse coordinates and convert them to data on the
mouseDown event - but then how do I track the mouse movement, since that
uses a different event (mouseMove), and the function I'm working with is
already tied to the mouseDown? The movement tracking seems necessary to
get the new coordinates.
- Tom
Ely Greenfield wrote:
It depends on just how much data you're trying to show in the chart,
but chances are good that it will be very responsive.
Ely.
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com]
*On Behalf Of *tom24569
*Sent:* Monday, November 27, 2006 12:08 PM
*To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
*Subject:* [flexcoders] Re: Hands-on charts
Would this happen fast enough that the chart would seem to be
responding to the mouse movement?
- Tom
--- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield [EMAIL PROTECTED]
wrote:
Hi Tom. There's no interative modelling built in, but this should be
pretty easy to do:
1) listen for itemMouseDown events.
2) track the mouse position
3) convert the mouse position into data coordinates using the
chart.localToData() function.
4) write the new data coordinates into your dataProvider
Ely.
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Monday, November 27, 2006 6:34 AM
To: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Hands-on charts
Flex charts work beautifully responding to dynamic changes in data.
Using the current components, is there any way to use Flex charts to
change data?
As a conceptual model, I'm thinking of the way parametric equalizers
work in some audio programs, where it's possible to drag nodes on
a line
graph vertically or horizontally to change the parametric data.
- Tom
RE: [flexcoders] Re: Hands-on charts
That depends on what you're trying to do specifically.
The easy answer would be to say that this only works when the user
specifically clicks down and drags on an item in the chart.
In that case, I'd modify my example below by:
1) listen to the chart's itemMouseDown event instead of mouseDown
2) change the type of the event object in the mouse down handler to
ChartMouseEvent
3) in the event object, there will be a hitData property. That should
tell you which item in your dataProvider you should be updating.
4) store off a reference to that item.
5) in your track function, use localToData to convert mouse coordinates
to data coordinates
6) in track function, write those data coordinates back into the item
you stored off.
Ely.
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Tom Fitzpatrick
Sent: Wednesday, November 29, 2006 9:31 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Re: Hands-on charts
Ely -
Inching forward some more...
I implemented your tracking code (very clever) but it's still unclear
how to use the Point data to rebuild the dataProvider. What is the hook
that lets the function know which item in the dataProvider array is
associated with the point data?
- Tom
Ely Greenfield wrote:
Yup. To do mouse tracking, you generally need a mouse down, mouse
move, and mouse up handler. Almost all of my code that does mouse
tracking looks like this:
someComponent mouseDown=startTracking(event); /
private function startTracking(e:MouseEvent):void
{
// listen to the systemManager so we get mouse move/up events even
when the mouse moves outside the component.
// listen on capture so we can cancel move/rollover events going
to other components.
systemManager.addEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.addEventListener(MouseEvent.MOUSE_UP,endTracking,true);
track(e);
}
private function track(e:MouseEvent):void
{
// update your data/UI here.
}
private function endTracking(e:MouseEvent):void
{
track(e);
// remove the event listeners until we need to track again.
systemManager.removeEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.removeEventListener(MouseEvent.MOUSE_UP,endTracking,true);
}
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
]
*On Behalf Of *Tom Fitzpatrick
*Sent:* Tuesday, November 28, 2006 9:37 AM
*To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
*Subject:* Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual
problem. I can get the mouse coordinates and convert them to data on
the
mouseDown event - but then how do I track the mouse movement, since
that
uses a different event (mouseMove), and the function I'm working with
is
already tied to the mouseDown? The movement tracking seems necessary
to
get the new coordinates.
- Tom
Ely Greenfield wrote:
It depends on just how much data you're trying to show in the chart,
but chances are good that it will be very responsive.
Ely.
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com]
*On Behalf Of *tom24569
*Sent:* Monday, November 27, 2006 12:08 PM
*To:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
*Subject:* [flexcoders] Re: Hands-on charts
Would this happen fast enough that the chart would seem to be
responding to the mouse movement?
- Tom
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield
[EMAIL PROTECTED]
wrote:
Hi Tom. There's no interative modelling built in, but this should
be
pretty easy to do:
1) listen for itemMouseDown events.
2) track the mouse position
3) convert the mouse position into data coordinates using the
chart.localToData() function.
4) write the new data coordinates into your dataProvider
Ely.
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Monday, November 27, 2006 6:34 AM
To: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Re: [flexcoders] Re: Hands-on charts
Ely -
Do you mean ChartItemEvent? I can't find ChartMouseEvent documented.
ChartItemEvent gives me the HitData and access to the item, but I seem
to lose the mouse tracking in the process.
- Tom
Ely Greenfield wrote:
That depends on what you're trying to do specifically.
The easy answer would be to say that this only works when the user
specifically clicks down and drags on an item in the chart.
In that case, I'd modify my example below by:
1) listen to the chart's itemMouseDown event instead of mouseDown
2) change the type of the event object in the mouse down handler to
ChartMouseEvent
3) in the event object, there will be a hitData property. That should
tell you which item in your dataProvider you should be updating.
4) store off a reference to that item.
5) in your track function, use localToData to convert mouse
coordinates to data coordinates
6) in track function, write those data coordinates back into the item
you stored off.
Ely.
*From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED]
*On Behalf Of *Tom Fitzpatrick
*Sent:* Wednesday, November 29, 2006 9:31 AM
*To:* flexcoders@yahoogroups.com
*Subject:* Re: [flexcoders] Re: Hands-on charts
Ely -
Inching forward some more...
I implemented your tracking code (very clever) but it's still unclear
how to use the Point data to rebuild the dataProvider. What is the hook
that lets the function know which item in the dataProvider array is
associated with the point data?
- Tom
Ely Greenfield wrote:
Yup. To do mouse tracking, you generally need a mouse down, mouse
move, and mouse up handler. Almost all of my code that does mouse
tracking looks like this:
someComponent mouseDown=startTracking(event); /
private function startTracking(e:MouseEvent):void
{
// listen to the systemManager so we get mouse move/up events even
when the mouse moves outside the component.
// listen on capture so we can cancel move/rollover events going
to other components.
systemManager.addEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.addEventListener(MouseEvent.MOUSE_UP,endTracking,true);
track(e);
}
private function track(e:MouseEvent):void
{
// update your data/UI here.
}
private function endTracking(e:MouseEvent):void
{
track(e);
// remove the event listeners until we need to track again.
systemManager.removeEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.removeEventListener(MouseEvent.MOUSE_UP,endTracking,true);
}
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com]
*On Behalf Of *Tom Fitzpatrick
*Sent:* Tuesday, November 28, 2006 9:37 AM
*To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
*Subject:* Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual
problem. I can get the mouse coordinates and convert them to data on the
mouseDown event - but then how do I track the mouse movement, since that
uses a different event (mouseMove), and the function I'm working with is
already tied to the mouseDown? The movement tracking seems necessary to
get the new coordinates.
- Tom
Ely Greenfield wrote:
It depends on just how much data you're trying to show in the chart,
but chances are good that it will be very responsive.
Ely.
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com]
*On Behalf Of *tom24569
*Sent:* Monday, November 27, 2006 12:08 PM
*To:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
*Subject:* [flexcoders] Re: Hands-on charts
Would this happen fast enough that the chart would seem to be
responding to the mouse movement?
- Tom
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield [EMAIL
PROTECTED]
wrote:
Hi Tom. There's no interative modelling built in, but this should be
pretty easy to do:
1) listen for itemMouseDown events.
2) track the mouse position
3) convert the mouse position into data coordinates using the
chart.localToData() function.
4) write the new data coordinates into your dataProvider
Ely.
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders
Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual problem. I can get the mouse coordinates and convert them to data on the mouseDown event - but then how do I track the mouse movement, since that uses a different event (mouseMove), and the function I'm working with is already tied to the mouseDown? The movement tracking seems necessary to get the new coordinates. - Tom Ely Greenfield wrote: It depends on just how much data you're trying to show in the chart, but chances are good that it will be very responsive. Ely. *From:* flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] *On Behalf Of *tom24569 *Sent:* Monday, November 27, 2006 12:08 PM *To:* flexcoders@yahoogroups.com *Subject:* [flexcoders] Re: Hands-on charts Would this happen fast enough that the chart would seem to be responding to the mouse movement? - Tom --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com, Ely Greenfield [EMAIL PROTECTED] wrote: Hi Tom. There's no interative modelling built in, but this should be pretty easy to do: 1) listen for itemMouseDown events. 2) track the mouse position 3) convert the mouse position into data coordinates using the chart.localToData() function. 4) write the new data coordinates into your dataProvider Ely. From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com] On Behalf Of Tom Fitzpatrick Sent: Monday, November 27, 2006 6:34 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Hands-on charts Flex charts work beautifully responding to dynamic changes in data. Using the current components, is there any way to use Flex charts to change data? As a conceptual model, I'm thinking of the way parametric equalizers work in some audio programs, where it's possible to drag nodes on a line graph vertically or horizontally to change the parametric data. - Tom
RE: [flexcoders] Re: Hands-on charts
Yup. To do mouse tracking, you generally need a mouse down, mouse move,
and mouse up handler. Almost all of my code that does mouse tracking
looks like this:
someComponent mouseDown=startTracking(event); /
private function startTracking(e:MouseEvent):void
{
// listen to the systemManager so we get mouse move/up events even
when the mouse moves outside the component.
// listen on capture so we can cancel move/rollover events going to
other components.
systemManager.addEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.addEventListener(MouseEvent.MOUSE_UP,endTracking,true);
track(e);
}
private function track(e:MouseEvent):void
{
// update your data/UI here.
}
private function endTracking(e:MouseEvent):void
{
track(e);
// remove the event listeners until we need to track again.
systemManager.removeEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.removeEventListener(MouseEvent.MOUSE_UP,endTracking,true);
}
From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
Behalf Of Tom Fitzpatrick
Sent: Tuesday, November 28, 2006 9:37 AM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual
problem. I can get the mouse coordinates and convert them to data on the
mouseDown event - but then how do I track the mouse movement, since that
uses a different event (mouseMove), and the function I'm working with is
already tied to the mouseDown? The movement tracking seems necessary to
get the new coordinates.
- Tom
Ely Greenfield wrote:
It depends on just how much data you're trying to show in the chart,
but chances are good that it will be very responsive.
Ely.
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
]
*On Behalf Of *tom24569
*Sent:* Monday, November 27, 2006 12:08 PM
*To:* flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
*Subject:* [flexcoders] Re: Hands-on charts
Would this happen fast enough that the chart would seem to be
responding to the mouse movement?
- Tom
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield [EMAIL PROTECTED]
wrote:
Hi Tom. There's no interative modelling built in, but this should be
pretty easy to do:
1) listen for itemMouseDown events.
2) track the mouse position
3) convert the mouse position into data coordinates using the
chart.localToData() function.
4) write the new data coordinates into your dataProvider
Ely.
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Monday, November 27, 2006 6:34 AM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Hands-on charts
Flex charts work beautifully responding to dynamic changes in data.
Using the current components, is there any way to use Flex charts to
change data?
As a conceptual model, I'm thinking of the way parametric equalizers
work in some audio programs, where it's possible to drag nodes on a
line
graph vertically or horizontally to change the parametric data.
- Tom
Re: [flexcoders] Re: Hands-on charts
I'm trying to use a chart to do this because the data are currently
displayed in charts, so that seemed the most appropriate control to use
for making data changes.
That said, I'd be very interested in seeing how you implemented this.
Any chance of sharing your code?
- Tom
mark_g_wales wrote:
Tom,
I'm not sure if you are stuck on using charts to do this, but I think
I accomplished a similar effect to what you want a while back by using
the graphics package to draw a rectangle around a slider. I listened
for slider events and would then clear and re-run the drawRect on each
move. It was very little code and the effect was quite seamless.
-Mark
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield [EMAIL PROTECTED]
wrote:
Yup. To do mouse tracking, you generally need a mouse down, mouse move,
and mouse up handler. Almost all of my code that does mouse tracking
looks like this:
someComponent mouseDown=startTracking(event); /
private function startTracking(e:MouseEvent):void
{
// listen to the systemManager so we get mouse move/up events even
when the mouse moves outside the component.
// listen on capture so we can cancel move/rollover events going to
other components.
systemManager.addEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.addEventListener(MouseEvent.MOUSE_UP,endTracking,true);
track(e);
}
private function track(e:MouseEvent):void
{
// update your data/UI here.
}
private function endTracking(e:MouseEvent):void
{
track(e);
// remove the event listeners until we need to track again.
systemManager.removeEventListener(MouseEvent.MOUSE_MOVE,track,true);
systemManager.removeEventListener(MouseEvent.MOUSE_UP,endTracking,true);
}
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Tuesday, November 28, 2006 9:37 AM
To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com
Subject: Re: [flexcoders] Re: Hands-on charts
I'm trying out your suggested approach and ran into a conceptual
problem. I can get the mouse coordinates and convert them to data on the
mouseDown event - but then how do I track the mouse movement, since that
uses a different event (mouseMove), and the function I'm working with is
already tied to the mouseDown? The movement tracking seems necessary to
get the new coordinates.
- Tom
Ely Greenfield wrote:
It depends on just how much data you're trying to show in the chart,
but chances are good that it will be very responsive.
Ely.
--
*From:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
]
*On Behalf Of *tom24569
*Sent:* Monday, November 27, 2006 12:08 PM
*To:* flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
*Subject:* [flexcoders] Re: Hands-on charts
Would this happen fast enough that the chart would seem to be
responding to the mouse movement?
- Tom
--- In flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com, Ely Greenfield egreenfi@
wrote:
Hi Tom. There's no interative modelling built in, but this should be
pretty easy to do:
1) listen for itemMouseDown events.
2) track the mouse position
3) convert the mouse position into data coordinates using the
chart.localToData() function.
4) write the new data coordinates into your dataProvider
Ely.
From: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
[mailto:flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com] On
Behalf Of Tom Fitzpatrick
Sent: Monday, November 27, 2006 6:34 AM
To: flexcoders@yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
mailto:flexcoders%40yahoogroups.com
Subject: [flexcoders] Hands-on charts
Flex charts work beautifully responding to dynamic changes in data.
Using the current components, is there any way to use Flex charts to
change data?
As a conceptual model, I'm thinking of the way parametric equalizers
work in some audio programs, where it's possible to drag nodes on a
line
graph vertically or horizontally to change
RE: [flexcoders] Re: Hands-on charts
It depends on just how much data you're trying to show in the chart, but chances are good that it will be very responsive. Ely. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of tom24569 Sent: Monday, November 27, 2006 12:08 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Hands-on charts Would this happen fast enough that the chart would seem to be responding to the mouse movement? - Tom --- In flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com , Ely Greenfield [EMAIL PROTECTED] wrote: Hi Tom. There's no interative modelling built in, but this should be pretty easy to do: 1) listen for itemMouseDown events. 2) track the mouse position 3) convert the mouse position into data coordinates using the chart.localToData() function. 4) write the new data coordinates into your dataProvider Ely. From: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com [mailto:flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com ] On Behalf Of Tom Fitzpatrick Sent: Monday, November 27, 2006 6:34 AM To: flexcoders@yahoogroups.com mailto:flexcoders%40yahoogroups.com Subject: [flexcoders] Hands-on charts Flex charts work beautifully responding to dynamic changes in data. Using the current components, is there any way to use Flex charts to change data? As a conceptual model, I'm thinking of the way parametric equalizers work in some audio programs, where it's possible to drag nodes on a line graph vertically or horizontally to change the parametric data. - Tom
