ActionScript 2.0 :: GetPixel To RGB Values
Feb 14, 2007
So, I'm using the BitmapData class and getPixel to retrieve the colour of a pixel. It works fine and returns a number like "16706965". I'm not sure what kind of value this is? If I place a 'toString(16)' on the end of it, I get a HEX value, but sometimes it isnt 6 digits long, sometimes 5 sometimes 4, so I can't just convert it from HEX to RGB.
I can make this number into a string with 6 digits, but then it doesnt recognise when I try to convert it to RGB
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Sep 18, 2008
I'm writing an applicaton which acts based on different colour values of pixels in a png image created in Microsoft paint. However, when I load the image into a BitmapData object, and then parse through the pixels reading their values using getPixel() or getPixel32() (I've tried both) I seem to be getting values which are slightly inaccurate compared to what was saved. For example a pure white pixel which should be read as 0xFFFFFFFF often comes out as 0xFFFFFFFE. The behaviour of the program is dependent on the exact value of the pixel so these errors usually break it.
Sometimes the problem is intermittent so seems fixed but actually isn't. Is it to do with the PNG format? I thouht png was lossless so should deliver accurate pixel values at all times?
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Nov 15, 2009
I have a greyscale image and I want to scan the pixels out of the Image and this is what I get :
var i:int;
var j:int;
for (i = 0; i < img.contentWidth ; i++) {
for(j = 0; j < img.contentHeight; j++){
pixeldaten.addItem({x:i,y:j,pixel:bmd.getPixel(i,j)});
}}
But the table doesn't look like RGB Values . (R , B , and G must be the same).
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Oct 15, 2009
I have two images, one overlayed exactly over the other. The image in front is what the user needs to see, but the user behind can be considered to be like a map with different fields of color on it representing different things.
What I am trying to do is that when the user mouses over the image, it reads (via .getPixel) the color info of the image behind which prompts certain messages to be displayed.
I am not having a problem with getting .getPixel() to work since when I just have the behind image (colored "map") showing, the color data for each pixel comes up as expected. But, when I overlay the top image, it shields the back image from being able to be "read" by my .getPixel function.
Is there a way to have a movieClip not "interfere" with movieClips that lay behind it in the stack?
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Oct 15, 2008
I want to getpixel value of a pixel in Stage. Stage is dynamically created and its have movieclips or images, thats are all dynamically created,
But Now I need to get a pixel color value of (150,150) in the stage,
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Jan 22, 2010
I am having a few issues converting a MC to a bitmap. I have succeeded in loading a graphic from the library, loading that as a bitmap and I can use getPixel to get the color at a certain x,y point.BUT I have another part to the problem. I have a file upload where a user can upload an image and choose a color off that logo. So I have the logo uploading, then getting loaded into an MC on the stage and it all works honky dory.However, when I (thought) I was converting it to bitmap and then use getPixel, every part of it is just returning white.[code]But no matter what co-ordinates I put in, I always get white.
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Oct 15, 2009
(1) read in a *.png image(2) when the user mouses over the movieclip that contains the image, an RGB value (in 0xFFFFFF format) of the pixel which the mouse is currently hovering over is displayed.Here is what I am doing to try and make it happen:(1) Using the loader class (imageLoader) to load a bitmap (*.png -- no alpha) into a movieclip.(2) Also taking the "imageLoader.conent" and placing it into a "grainImage:Bitmap" object.(3) Using a timer event to fire off data describing the where the mouse is at all times.function readPixelColor(te:TimerEvent):void { trace(grainImage.bitmapData.getPixel(mouseX, mouseY).toString(16));};How can one insert code in these Forums? I used to be able to do that... Oh well, the problem that is happening is that the value that is being returned by this function is off by 010101 (I believe, not certain how hexidecimal works).
Anyway, if the color is really "336699" (as confirmed in Photoshop) my function returns "326598". Which is "336699" minus "010101"why this may be doing this? Are my values "shifted" in some way since there is no alpha? Maybe there is some sillyness behind loading the image into a _mc and also placing the loader content into a bitmap object -- they are interfering with each other in some way?
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Mar 2, 2011
I'm trying to create a color picker using getPixel. It works wonderfully as long as the image is loaded from a local drive. When I try loading it from the server (a subdirectory on the same server as the SWF), the loaded image doesn't get drawn when I use the draw command. It draws a white rectangle and when I use getPixel, I always get 0xFFFFFF. I also have system.Security.allowDomain("[URL]") in my script, but nothing works.
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Mar 28, 2010
I am trying to loop through a bitmap and determine if each pixel is lighter or darker than gray using getPixel(). Problem is, I am not sure how to tell whether the value returned by getPixel() is darker or lighter than gray.
Neutral gray is about 0x808080 or R:127, G:127, B:127. How would I need to modify the code below to accurately determine this?
[Code]...
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Jan 11, 2012
I've created a simple drag-and-drop dress-up game. The aim is that users will create a monster by dragging and dropping, and that an image of that monster will be sent to me, and I will create a toy that looks like the monster.
So once users are happy with the final look, and have filled in their details on the page, I would like them to be able to click a button that will send me the encoded jpeg of how the swf currently looks. I could then recreate the image using image magick or something similar, I guess?
I realise that this may require PHP, but as I have never used it before I thought that perhaps it may be possible to use getpixel to get an encoded text string of the stage and then send that to myself via "mailto"?
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Aug 18, 2009
I'm building an application where the user can upload a photo of their head, scale it and position it, and then pick a colour from the photo.The photo gets put into a movieclip called 'head'I'm stuck at the colour picker part and I just can't seem to work out the whole bitmapData thing. Here's my colour picker code -
ActionScript Code:
private function beginColourPick():void
{
_bmd = new BitmapData(head.width, head.height);
[code]...
This code kind of works, but not correctly.
Problem #1: The colour picker only works in the bottom right quarter of the image because I moved the head mc so the registration point is bang in the middle. So the problem here is that I can't figure out how to move the bitmapData in line with the head mc.
Problem #2: If the user scales the head mc (even a tiny bit) the colour picker stops working altogether. Now I'm thinking I've got to use a transform matrix - but I read up on it and haven't got anywhere.
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Dec 13, 2010
I'm working with a video in Flash where I am capturing each frame and testing the color of a single pixel. I'm using it to determine when a white/transparent background changes to be a color. The following AS2 code works flawlessly when I preview it in Flash and on my desktop in the browser (the direct SWF and placed inside HTML using SWFObject) but as soon as I upload it to my server it fails and produces "FFFFFF" continuously regardless.
this.onEnterFrame = function()[code]..........
There is no difference in the files; they are both pulling from the same video source (hosted on an Flash FLV server).The only difference is one set of files is hosted on my local computer and the other is hosted on my web server.
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Dec 6, 2010
I've gotten these sliders to work but can't get the output values to add up. For instance, depending on the values for slider 1, 2 and 3, I need the total to show up in a separate text box. I keep getting a NaN message in the text box.Here's the code I have so far:
//item 1
sliderOne.width = 600;
sliderOne.value = 0;[code].....
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May 18, 2010
I need to save email-id in my login form through the cookies. if I use shared object I am able to save but my requirement is need to save in cookies. How can I save? I got sample code from net. Attaching that code `package com {
import flash.external.ExternalInterface;
/**
* The Cookie class provides a simple way to create or access
* cookies in the embedding HTML document of the application.
[Code].....
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Sep 4, 2011
I need to be able to compare the number of whole days between two dates in ActionScript, is this possible? I'd like to test if one date is 7 days or less after today, and if so is it one day or less (if it's before today this also counts).The workaround I have in place is using the .time part of the date field:
// Get the diffence between the current date and the due date
var dateDiff:Date = new Date();
dateDiff.setTime (dueDate.time - currentDate.time);[code].....
As I say - this is only a workaround, I'd like a permanent solution to allow me to check the number of whole days between 2 dates. Is this possible?
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Sep 7, 2010
Is there anyway where I can pass the Array values (not the array collection values) to the Bar charts or column charts using flex 3.5...
here is the thing i want:::
I have array values like this,,
array1 = [23, 49, 40, 239, 20, 80, 39,49,120, 24, 31,41];
and i want to show these values on the Yaxis and months on Xaxis....
I have two Qns,
1) how can I pass this array to Bar chart or column chart.
2) how do I need to show months on Xaxis. beacuse I'm asking this regarding, I have kept a filters that even if we want to see some months or a particular months or perticalar span of months... there on Xaxis it need to change the months dynamically depending on the filters..... (for ex, on Xaxis the values should be (Jan, Apr, Jun,Oct) if i select the 3 months period filter....)
I have written a logic to collect the values of those particular months into an array, but not understading how to pass this array to Bar chart,, beacuse there I don't know what Xfield and Yfield to be given....
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Sep 8, 2010
I am loading images and am getting their heights via trace but can't put them into an array to save my life.
Code:
var imageResArray:Array = new Array();//used to store image height
ldr.contentLoaderInfo.addEventListener(Event.COMPLETE, ImageLoaded);
ldr.load(new URLRequest(menuArray[c].iPath.toString()));
[Code].....
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Aug 11, 2011
<header> <Games>true</Games> <Signup>true</Signup> <Support>true</Support> <Username>true</Username> <Password>true</Password> <Login>true</Login> <Language>true</Language> <Date>true</Date>
[code]........
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Jan 18, 2010
In my code I have two variables I only want to use them one time and after that never again. The vars are newDraggerPos and newHolderPos. How is that done?
Code:
function moveRight(event:MouseEvent):void {
//trace(mcHolder.width);//6759
[code].....
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Jul 17, 2009
how to remove duplicate values from xml although it successfully done using array but not in xml
here's my xml data looks like (list.xml)
Code:
<?xml version="1.0" ?>
<gallery>
<menu maker="adobe1" software="flash"/>
<menu maker="adobe2" software="photoshop"/>
[Code].....
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Apr 3, 2008
I am trying to develop a flash map where i need to show avalue from the current url into the text field in flash. Theproblem is I need only some values from the url to be displayed indifferent text boxes.Say the url is http://ayushjain.in/staticDefault.aspx?northamerica=168&southamerica=1 &europe=10&africa=0I want to display the value of "northamerica", "eurpoe" &"africa" in the text boxes.This should be done as soon as the swf loads in the html
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Jan 28, 2009
I have a for loop that goes through my recieved values from my server. How can I put all those values into ONE array? I have this now, but obviously the array just updates every time the loop returns.
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Sep 1, 2010
I have an xml of numbers that I am using to power some dynamic bar charts..
I can easily pull out a string of all node values for variable area (SQMI)
trace(stsXml.Records.Record.SQMI.children());
the trace result looks like this
6729014724597803833449707411067084872157776104101113713121757
these values do not appear to be seperated but I am hoping they are (there should be 11 unique values here).
How can I sum the 11 values as extracted from my XML?
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Aug 22, 2010
I have a value object, inside are lots of getters/setters. It is not a dynamic class. And I desperately need to search an ArrayCollection filled with them. The search spans all fields, so and there are about 13 different types of VOs I'll be doing this with. I've tried ObjectUtil.toString() and that works fine and all but it's slow as hell. There are 20 properties to return and ObjectUtil.toString() adds a bunch of junk to the output, not to mention the code is slow to begin with.
flash.utils.describeType() is even worse. I'll be pleased to hear I'm missing something obvious. UPDATE: I ended up taking Juan's code along with the filter algorithm I use for searching and created ArrayCollectionX. Which means that every ArrayCollection I use now handles it's own filters. I can search through individual properties of the items in the AC, or with Juan's code it handles full collection search like a champ. There was negligible lag compared to the same solution with external filters.
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Jan 24, 2011
With 5 variables consist of a value, I would need to check if any value between fa to fe has a gap of 6 in integer as in f1=1, f2=0, f3=0, f4=7, f5=10; and between f1 and f4, which has a gap of 6.
var f1:int
var f2:int
var f3:int
[code].....
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Mar 17, 2011
Can I pass values from fla to AS3. Example I have fla file where the xml faile loaded. Now I want to make button "Button 1" and "Button 2" now if I press the button it sent to AS3 values/variables.
private var xmlURL:String = "xml/Button1.xml";
After buttone 2 is pressed is
private var xmlURL:String = "xml/Button2.xml";
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Jul 13, 2011
I'm using YQL to try and find band photos for a project I'm working on. If an image is found, it is returned in an XML response, and my flash code posts it. But if one is not found, I'm not quite sure how to tell flash not to do anything. Here's my code:
XML.ignoreWhitespace = true;
var groupPhotoXML = new XML (e.target.data);
var imgRef = groupPhotoXML.results.img[0].@src;[code].........
An unsuccessful attempt traces out as empty.
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Dec 7, 2011
how to post some variables to a URL. Let's say the user has played a Flash game, packaged as an EXE or SWF embedded in HTML stored on the user's computer, not from some webpage, and would like to register the score by completing a simple form with just an e-mail address and pressing a button.
Would it be possible to do it even thought the Flash application is not on an active webpage?
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Sep 10, 2009
I'm trying to get some values from xml file but want only those where "imagemdir = 1".[code]How can I save a variable with only those with match a filename?
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Oct 1, 2009
I have the following actionscript so far:
Code:
//XML
var trades = new XML();
trades.ignoreWhite = true;
[Code]....
Basically, in my xml, I obviously have many more <TradesMan> values, but my trace is only showing me the very first one. How can I put all of my values in some sort of array so I target them from elsewhere within my flash file?
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