Actionscript 3 :: Draw Something Like THIS Using Flex 3?
Nov 9, 2010
I am trying to create a "radar-like" control within our Flex application. See the following link for an example (sorry, small image...) [URL] This is my first foray into drawing with Flex. I would like to draw the main circles of the radar, the radar scanning shape, and circles/balls representing objects within the radar. These objects need to have the ability to be clicked on or hovered over so the user can get more information. I'm looking at Sprite's and Shapes, etc. but confused as which to use to create such a control.
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Dec 16, 2010
i have a class thats create a class with bitmapData that merge 2 IBitmapDrawable. one of them is 24*20 while the other is 16*16.i want to draw the smaller first in a bitmapData object which its width and height are 24*20 but i want to draw it in the center of the big bounds.
[Code]...
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Mar 18, 2009
I am using the draw() method of the BitmapData to encode a jpeg of part of the image. Now this should be easy enough given the object I want to draw to the bitmap is on the stage at design time so I know its location and dimetions exactly! Heres the code I have in place.
Code:
var myBitmapSource:BitmapData = new BitmapData ( street.width, street.height, false, 0x333333);
myBitmapSource.draw(street, null, null, null, new Rectangle( 96, 5, 571, 450 ), true );
I know for a FACT that no part of the street clip I am drawing out is in negative space, and it's registration is (0,0). However, it cuts off A lot of the top of my image. y=5 in the above rectangle is where I need the top to be, but it cuts the top off of the image... even if I change it to 0, it has no effect.
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Jun 30, 2011
I'm making something that requires me to draw() the youtubeplayer Giving me this pretty error:
[Code]...
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Dec 15, 2009
I'm trying to do some lean blitting for an object that rotates by rotating it once at startup and capturing a BitmapData snapshot of each 5 degrees. The problem I'm having is that the draw() method of the BitmapData object is only picking up pixels in the MovieClip that are below and to the right of the registration point. If I change the MC so that the registration point is in the top left corner, I sometimes get what looks like most of the pixels, but the entire object rotates into and out of the frame, since it's rotating around the corner and not the center.
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Jul 17, 2009
I have a line series in a linechart and a slider that goes from 0 to 200. When I now move the slider, I want to have a dot appearing at the chart so when I move the slider to 150, there should be a dot where the x-coordinate of the chart is 150.
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Dec 4, 2009
I'm trying to create dynamic flower component to depict relations between parent object and it's children.Parent object is represented by daisy center and the children are represented by petals. Each of above can have a specific fill/color and text label, moreover petals should be draggable. My question is: is that possible to do using Degrafa? Can anyone post an example of drawing flower using degrafa?
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Dec 26, 2009
I'm wondering (based on scoping rules) how I might do the following: I want to draw to a sprite that exists on the main stage in which I have a class instantiated.
So something like
public function MyClass(reference:String){
this.reference = reference;
}
[Code]...
Would I use super() in this case, or what's the usual methodology?
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Mar 26, 2010
Do you have any recommendation for a free 3D charting library in Flex. To be more precise, I only need to draw surface (for now). Basically, I just need a chart that displays three axes (one should be timeline, and two should be linear axises) and the surface.
From what I have seen so far, two most popular free Flesh 3D libraries are Papervision3D and Away3D. Also, I've found one IBM library - ILOG Elixir that looks really nice, but it's proprietary (although, I haven't seen any surface examples for Elixir neither). From what I have seen, Papervision3D and Away3D should do much more then 3D charting, but I haven't seen any examples on how to draw surfaces in any of them (except this line chart in 3D: [URL]
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Aug 14, 2010
I'm trying to draw a box with actionscript 3 and flex 3.5. First a few things:
1) I am not using any IDE at all, just notepad and flex
2) I am not using any mxml file at all (yes this is possible with as3 apparently)
3) I am not using inheritance ie I'm not using an extends on my classes, I'm trying to get this particular bit of code to work only through composition
Anyway this is the code itself (the file name is MAIN.as):
[Code]...
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Dec 13, 2010
I'm trying to draw lines on a canvas object. When the width of the Canvas is less that the width of the line, it draws outside the Canvas over other elements. I read about this problem and I try to resolve using a inner Canvas with a longer height so a scrollbar appears.But I also read that this problem can be correct using a mask but I do not know what is the better way. Which do you recommend?
<mx:Canvas id="panelContentECG" width="100%" height="400" backgroundAlpha="0.5" styleName="miCanvas" borderStyle="solid" cornerRadius="20" borderColor="0xFCFE00" horizontalScrollPolicy="off">
[code].....
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Dec 30, 2010
I'm trying to draw a String inside a canvas. The text and the position of the String changes pressing differents bottoms. For doing so, I create TextFields which I added to a sprite which I added to a Canvas:
canvas.rawChildren.addChild(spriteNombres);
The first time everything works fine but when I press the bottoms,it does not refresh and appear the old textfields and the new ones.I cant remove the old ones, I try with removeAllChildren and also trying to delete one by one with removeChildrenAt. I do not know if I'm doing something wrong or maybe this is not the best way.
I also try creating bitmapdata and drawing in the sprite inside a rectangle.
var channelName: TextField = new TextField();
channelName.text = channelNames[displaySequence[channel]];
if (channelName.text != null) {
[Code].....
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May 20, 2011
the problem may be a simple one but I can't figure it out. I have an image loaded into BitmapData. now I want to take text from a textinput and put it on the BitmapData. Basically it's drawing a text on the BitmapData and get the result as another BitmapData that will consist of the original BitmapData with the text drawn over it on a specified position
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Jul 18, 2011
I am creating an application that requires a user to draw their hand signature on a tablet. Does anyone the best way to do this on Flex mobile 4.5? What do I draw on to, a Sprite, canvas?
Also, I would need to save the signature as a .jpg, could this be done?
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Sep 20, 2011
[code]...
Basically this is not working. I used this question to improve - still nothing.Why doesn't this Flex App draw a simple rectangle?
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May 29, 2009
How can I used ActionScript to draw on different frames of a movie clip. That is, make it so that
movieClip.gotoAndStop(0);
Will show something different to
movieClip.gotoAndStop(1);
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Nov 24, 2006
Dose the Flex has some Tags just like <v:line> or <v:polyline> in VML?
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Mar 25, 2008
I'm building a flickr application in flex at the moment but i keep getting sandbox errors when i invoke BitmapData.draw();.After doing some google research i found that the proper policyfile needs to be loaded.i do this using: Code:Now this still doesn't resolve the issues. Upon further research i found that i need to check the policy file first using checkPolicyFile = true;
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Apr 5, 2012
I need to be able to draw a thick patterend line between 2 points in AS3, I can't use the draw API because it doesn't all me to actually put detail (pattern etc) into the thickness of the line, I thought about perhaps using the line to create a bitmap version and then using that as a mask, but I remember many years ago seeing some examples that use a movieclip as a source for a line.
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Jan 3, 2010
After some search and reading the Graphics class document, I can't find a way to specify the line style of a line. I mean whether the line is a solid one or a dotted one.
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Jan 29, 2010
How would one create a custom MXML component in flex which is based on an existing component but draws an overlay over this existing component in certain situations.
Ideally, the new component should be based on (derive from) the exiting component so that occurrences of the existing component could just be swapped out with the new one.
I tried to override updateDisplayList() in the new component and to paint the overlay using this.graphics. This resulted in the overlay being drawn underneath the children of the existing component. I also tried to do the drawing upon receiving a render-event which lead to similar results.
When the external condition which should trigger the display of the overlay changes, I call invalidateDisplayList() on my new component. That works to trigger the drawing for both cases described above. The remaining problem seems to be to figure out how to draw on top of all the other components once they are added.
The following example should illustrate what I tried to do; when overlayEnabled was set and the component's invalidateDisplayList() method was called, the red rectangle would get painted in the background.[code]...
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Feb 26, 2010
Is there any way to draw text in a DisplayObject or Shape using only ActionScript? The only way I can find on the web is by creating a TextField, but I can't add a TF to a DisplayObject or Shape.
DisplayObject implements IBitmapDrawable which can be passed as an argument to the draw function of a BitmapData object, which then can be drawn using graphics.beginBitmapFill.[code]...
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Mar 19, 2010
I'm doing some line charts in my Flex application, and I need to draw segments of those line chart in different color. Does anyone have an idea how this could be achieved? For instance, if I have a code like this (actually, I have given this trivial example for simplicity (the problem is the same)):
[Code]...
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Mar 29, 2010
how I can draw Bullet Points using Flex? instead of using image for 1, 2 and 3?
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Apr 13, 2010
Update: Once and for all, how can I draw a line that goes from (0,0) to the opposite corner of the stage?Here is what I have:
package
{
import flash.display.Sprite;
[code].....
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Aug 3, 2010
Apparently, it is not possible to have a chart with several independant horizontal axis. What I am trying to achieve is :
Display a bar chart, organized by any category
Overlay a line (actually a single horizontal line) on top of it (to display some sort of threshold)
I tried doing the following :
[Bindable] public var columnsDataProvider : ArrayCollection =
new ArrayCollection([{"Category" : "Cat1", "Value" : 10},
{"Category" : "Cat2", "Value" : 20}]);
[Code] .....
This is the closest to what I want, except that the line does not start span all the graphs vertically (it is drawn only between the two columns of my bar chart). Is it possible to define a completely independant horizontal axis? I also tried drawing directly on the canvas, but the canvas.lineTo() method only works in "data" coordinate; I would need something that works in "chart/canvas/absolute/whatever" coordinates.
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Oct 8, 2010
I'm making a audio recorder with Adobe Flex (Microphone, NetStream), I want to get the current audio wave from Microphone to display in the visualization area, how can i get the data?
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Feb 20, 2011
Is there a simple way to draw a circular arc in MXML graphics that doesn't involve beziers? Or should I create my own component?
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Mar 16, 2011
Let's assume I have an Image that's used a button. By default, the image has no border around it. Clicking on this Image will cause another component be displayed beneath it or next to it. When the second component is displayed, I want to draw a joined border around the Image and the second component.
The second component would not be visible by default. It would only be visible after clicking on the Image by using the popupManager, PopUpAnchor, setting the visible property, etc.
Example before clicking:
+--------------------------------+
| |
| XXX <-- My Image |
| XXX |
| |
| |
| |
| |
| |
| |
| |
+--------------------------------+
Example after clicking:
+--------------------------------+
| +---+ |
| |XXX| <-- My Image |
| |XXX|_______________ |
| | | |
| | My Second | |
| | Component | |
| | | |
| | | |
| +-------------------+ |
| |
+--------------------------------+
How difficult would it be to create something like this?
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Apr 1, 2011
I am trying to save a component as a JPG file and I can't seem to get the BitmapData.draw() to give me the pixels I'm expecting and instead I am seeing a plain white rectangle when I open the resulting JPG file. I am first creating an object which contains an image and a caption (the MultigraphCanvas below) and when I display the object as a pop up it looks perfect -- however when I try to draw it as a bitmap and then encode and save it as a JPG I don't end up with the same image I can display on the screen. [code]...
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