I am writing in reference to Visualizing LARGE Data Sets .
Apparently, using the underlying Flash API for drawing:
g.beginFill( o.x * 0xFFFFFF, 1 )
g.drawCircle( o.x * w, h-(o.y * h), 2 );
[code]......
I am drawing a circle on the stage using graphics.drawCircle that rotates around another circle, and I want to have a textfield that sits inside the moving circle and rotates around with it.
View 2 RepliesI'm currently working on a project where I generate a large amount of audio data to be stored on a users machine.
It works fine for small amounts of data but as the memory usage grows the flash application begins to struggle and eventually dies.
I've been thinking about possible ways to overcome this problem and I was thinking instead of storing all the data in memory (sometimes up to 100mb) a possible solution may be to stream the data to a server (44100 float numbers per second) as it is is being generated then once the accumulation of data has ended sending it back to the client.
1) can you see any problem with this idea and if so could you offer a better alternative?
2) could you reccommend a good server technology to achieve this?
Edit 1
To add more detail.
I am generating audio on the client using the sound.extract method. As the audio is being sent to the speaker I also send it to a byte array.
Once the user has hit a stop button I prepend a wav header to the audio data in the bytearray and allow the user to download a wav of the audio they have just being listening to.
Ideally I didnt want to impose a limit of how much data the user could save. This may not be possible.Storing all this audio data in memory was causing severe performance problems in flash. I don't know of any way to incrementally store this data on the client machines so I was thinking a solution may be to incrementally stream the data to a server somewhere to reduce the memory load.
I have a large flash project and I'm trying to figure out the best way to handle it. I want to load in an XML file of groups and their members, and a bunch of attributes related to each group and its respective members - but these groups and members are only displayed on screen after a user clicks on their parent groups. My first thought was to just pull in the XML for the whole tree of groups and users, then assign movie clips for the groups, and attach properties related to their display and how the user will interact with them - but if they may never appear on screen, is it pointless to do this? How do I best structure this project? Build an object and attach properties only to the object, then add display data only on click?
View 2 RepliesI'm developing a web application with Flash CS5 and AS3.0. The problem I'm having is this:At a certain state, the application goes to a frame with a "loading..." animation that loops continuously until the next state is reached. The animation is inside a MovieClip that lives on this frame on the stage (I'm not creating or animating it dynamically). While in this state, the app is waiting to receive a large xml file from an XmlSocket connection. The file takes a few seconds (literally - not milliseconds) to be received fully by the Flash player, and during this time the loading animation stops. I believe the socket is blocking the animation thread until it's done receiving the entire file.Does anyone know of a workaround that would allow the animation to keep playing while the socket is receiving? I've seen pseudo-threading hacks, but those always deal with computations or other activities that can be accomplished by calling a call-back function multiple times. Since I'm just listening on an open socket, there's no callback I could pass to a pseudo-thread.
View 2 RepliesI draw a red color circle,likefollows:graphics.beginFill(color);graphics.drawCircle(0,0,radius);graphics.endFill();Then I want to write a yellow color word in the middle of this circle,for example,I write 'Menu A' in the middle of the circle,what code can I use?
View 1 Repliesim using the code below to draw a circle.
How can i modify it so that it draws a circle when the mouse is still. In other words, it draws when teres no mouse interaction, clicks, movments.
ActionScript Code:
_drawboard.addEventListener(MouseEvent.RIGHT_CLICK, _handleMouseEvent);
_drawboard.addEventListener(MouseEvent.MOUSE_UP, _handleMouseEvent);
[Code].....
I have a Sprite in which I have drawn a circle with a fill. Later on, I wish to modify the color of this circle. I have retrieved the Graphics object from the Sprite using getChildAt(), and have tried:
getChildAt(i).graphics.beginFill(0x550000);
however this does not work. I've RTFM'd but can't figure out exactly how to deal with the Graphics object.
Im not sure whats the best way is to make large amounts of data available to my android app on the local device.
For example records of food ingredients, in the 100's?
I have read and successfully created .db's using this tutorial.[url]...
However to populate the database I use flash? So this kind of defeats the purpose of it. No point in me shifting a massive array of data from flash to a sql database, when I could access the data direct from the as3 array?
So maybe I could create the .db with an external program? but then how would I include that .db in the apk file and then deploy it to users android device.
Or maybe I create a as3 class with an xml object init and use that as a means of data storage?
I know how to display 1 record set from asp to flash but I get tuck when trying to display multiple record sets. Do i have to loop with action script? I really dont know. I am trying to make a news blog and pull news from the database into flash and organize it similar to this
[Code]...
I know how to display 1 record set from asp to flash but I get tuck when trying to display multiple record sets. Do i have to loop with action script? I really dont know. I am trying to make a news blog and pull news from the database into flash and organize it similar to this
Date -- Headline
Bla BLah BLah Blah
Posted by: Webmaster
[code]...
I'm developing an application using Flas Builder / Flex for Adobe Air. This application will be processing a large set of static text (100 - 200 MB) using a variable set of processing instructions.The target platforms will be iOS, Android and Desktop.The data set can be either one large XML file or broken into a bunch of XML files about 3MB each.This will be decided at design time.From your experience would it be better to store the text in an Adode Air database or a set of XML files for best performance (including speed and battery life)?What other considerations should I take into account?
View 1 RepliesAre there javascript libraries that can handle large data visualization? I've seen Protovis, but not sure how much data it can handle. Also, how do Actionscript libraries compare to Javascript in terms of performance?More:I've tried Flare, but seems to be slow for my applictaion. Now I'm yet to figure out if it is the rendering or if it is the shaping of data for rendering. I am looking at interactive graphs like the JobVoyager.
View 1 Replieshow "you" would do it and then deciding my strategy from there.What I'm setting out to do is as follows:I have a UI with about 10 sliders and 10 buttons.I'm using Senoculars Virtual Mouse class to record all of the users interactions into arrays (basically [x,y, action, time, value]) and then after a decided time (say 3 minutes) I play the users interaction back to them.All of that works fine but now the data is not persistent.I would like to be able to store the interaction data somewhere and then a user can log out, log in and view their previously saved interaction.how would you go about saving this data? I was thinking about storing it in a XML file but I'm concerned that the file would wind up being ridiculously huge. If a user drags a slider from left to right just once thats saving [x ,y action, time,value] 42 times.
View 3 RepliesI'm currently using XML to import geo-location data to my flash application.Even though my XML scheme is about as small as can be, I still feel i would do better downloading the variables as text and exploding them. If i manage to change the xml to raw text I can compress the data to about 35% of the original size.I want to load the data in the form a_b_c_d-e_f_g_h.So, to the question; how do I explode a datastring in flash?
View 2 RepliesI'm building a sidescrolling world where you can move around.The idea is that you should be able to move to any point in the world, as well as travelling really fast.I'm pregenerating a long list of data about objects to place, their positions etc.
Now. When moving to a point far away from current position I don't want to loop through the whole list of objects to find what objects should be seen and not, so I'm thinking I should divide the position list into sections, each covering an area equal to the visible area. That way I would only have to roll through the lists closets to the new position.This would however result in an array of thousands of elements each consisting of about 20 objects and I'm figuring that might not be very healthy.One solution would be to split everything up further so that in the end I would have a handable nr of arrays containing a handable nr of elements.
You're probably thinking I should generate positions on the fly, but since one place in the world can be revisited I need to store all positions.
I've got a small problem with loadvars. I want to send data from Flash to PHP, which usually works well. But right now I need to send "larger" amounts of data around 10-20kb and loadvars doesn't work anymore.
Using loadvars to open browser-windows seems to work fine, but I want everything to happen inside of flash.
The code is:
Code:
datastring = "1, 2, 3 (...) 4998, 4999, 5000"; // long text
loadstring = 'save.php?data='+datastring;
db = new LoadVars();
[Code].....
Works fine with small text, with big text nothing happens. How to do this the right way?
Edit: Loadvars seems to work up until 4050 characters, 4051 and it doesn't send anymore. But I can't really split the query..
I've run into some problems trying to handle large text files in AIR (300+ MB in size). I can open a filestream and read the file just fine and even store it into a string variable. the problem occurs when i try to manipulate this data. Im trying to get each line as an element in an array so i can manipulate this data.Here's what i've tried:1. read the file into a string variable and perform a split looking for the newline character ). this freezes the program2. i've tried reading the file in one byte at a time and putting each line into an array AS it is being read from the filestream. This not only takes long but eventually freezes.
3. i've tried splitting the final string variable which contains the entire text file into chunks to process it separately.4. i've even tried putting the file contents into a sqlite database, but this also freezes.At this point, im not sure what my options are. Is AIR even equipped to manipulate data at this level? I could use a point in the right direction
I had to manipulate a large number of XML and GIF files. In this case I will need to use a compressed file, like zip. if the flash can access this type of data like the Java do.
View 1 RepliesWhat is the best way to work large amounts of external data in Flash? XML, remoting,something else??I'm looking into a project that has a lot and I'm not sure what the best way to handle it would be
View 1 RepliesBuilding a multilingual application that should work with the most prevalent global alphabets but confused as to which font sets I should embed.For instance for Chinese there is Traditional Level 1, Simplified,Traditional (all). and Chinese (all).
View 1 RepliesRequirement: Create single very large bitmap data which contain some 30 PNG images loaded and for each image it should have some text. Images and text are loaded dynamically (AS2 code. Images are stored in a remote server). The bitmap data display should show 8 images at a time and corresponding text. We can see rest content by scrolling (kinetic scroll is implemented). How can I go for it?Some questions:Is there any limit for size of bitmap data ( As per link there is restriction on the height of the bitmap we can create in AS2 (max value is 2880 which is not enough for some 30 element list If we create individual bitmap data for 30 individual PNG files, we find some jerks in scroll. How can we have smooth scrolling?
View 5 RepliesI have a web application that functions as a dashboard, allowing a user to see summaries of historical data to view trends, etc. As an extension to this, I want to allow the user to drill-down into the historical data if they so wish.What this will amount to is a table of time-value pairs, showing the time a particular data point was recorded as well as its associated value. The issue is that there could be a very large amount of data on record (millions of points is entirely possible), which means it wouldn't work to load all the data up front and display it to the user.
So far, my best idea is to implement the table of time-value pairs with "infinite scrolling" - i.e. the first x points are loaded and then as the user scrolls down the next x points are fetched and so on until the user reaches the end of the data (with a fixed-size cache of points, so that I don't run out of memory). The issue with this approach, though, is that there's no way to get to the end of the data without first fetching every point in between.
Another option would be to have a navigation interface with forward and back buttons, as well as some sort of date chooser so the user can quickly navigate to any data point they wish. This solves the problem of the first idea, but this navigation interface is far more clunky and less intuitive.My question is: is there some happy medium? A UI where it's clean and easy to navigate through the data but at the same time provide some method of jumping to a specific point in time?
Edits based on comments below:The development environment is flex and the database is SQL Anywhere, though the back-end logistics are less important to me than a clean, functional UI.
I have a large ArrayCollection that need to be displayed in series of Datagrid.After testing, the loading time is around 30secs-1minute.My question here, is there a way to gradually add each datagrid and display it instead of waiting until all datagrids to fully created?Existing :
AddChild 1
AddChild 2
AddChild 3
[code].....
how much memory (and swf size) the various built-in data types take up in actionscript 3? I'm specifically interested in int, Number, and (dense) Arrays or Vectors. I'm working on a project where I need to embed large amounts of structured array data, which is already in C++ format, so porting is just a matter of copy-paste, search-replace. I've already had a look at Adobe's lowdown on datatypes but it's not specific enough, and doesn't mention Arrays, etc.
View 5 RepliesI have an actionscript function which is supposed to launch a panel and then fill in Networktopology data inside it.As, network data is too large that it consumes much time and makes browser hang!Even I tried to display busy cursor which also stopped spinning when data was being processed.How can I ensure processing large amount of data does not hang the browser.
View 3 RepliesIs there a way for different flex swf's to send large blocks of data between each other without using localconnection which is size limited or using sharedobjects. This needs to happen on the client without server communication.
View 2 RepliesI've created an AS class to use as a data model, shown here:
package
{
import mx.controls.Alert;
[code].....
however I need to create a gallery with two rows of thumbnails representing Before & After situation. So the xml would have to make a reference to 2 sets of images/thumbnails. I don't even have to have them scrolling. Is there an easy way of modyfying the existing code?
View 2 RepliesI am trying to scale a swf that has been loaded via a swfloader. When I get the complete event or the init event the dimensions of the swfloader are still zero. I don't see a value in the dimensions until I do a resize of the browser window. The swf is just an animation. Trying to resize the actual swf content gives inconsistent results.
View 1 Replies
