Actionscript 3 :: Vector Graphics Flood Fill Algorithms?
May 1, 2011
I am working on a simple drawing application, and i need an algorithm to make flood fills.The user workflow will look like this (similar to Flash CS, just more simpler):the user draws straight lines on the workspace. These are treated as vectors, and can be selected and moved after they are drawn.user selects the fill tool, and clicks on the drawing area. If the area is surrounded by lines in every direction a fill is applied to the area.if the lines are moved after the fill is applied, the area of fill is changed accordingly.Anyone has a nice idea, how to implement such algorithm? The main task is basically to determine the line segments surrounding a point. (and storing this information somehow, incase the lines are moved)[code]
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Jun 21, 2009
I'm making a level editor for a game, but this question doesn't have to be game related so I decided to post it here. I'm using Actionscript 2.0 (Flash 8) I'm trying to implement the flood fill algorithm so that I can paint tiles just like the paint bucket in mspaint. The level consist of a BitmapData object which is 2880px in width and 2176px in height.
[Code]....
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Jul 28, 2009
I have a large vector drawing (imagine 5000x5000) that i want to break up into separate pieces. I know that I can convert this vector drawing into a bitmap and then use the copyPixels method to create many separate bitmaps of the different regions of the original vector drawing, but is there any way to subdivide it into movieclips that just contain vector graphics instead of a bitmap?The reason im dividing a big chunk of vector graphics into smaller pieces is for performance reasons, so flash would only render a small part of this big chunk at a time (only certain regions/voxels/subdivisions are rendered at a time). But bitmaps apparently take up a lot of memory and the system im using would take much less memory if these subdivisions could be preserved in their original vector graphics form.
I imagine I could use masks somehow to achieve this effect (for each subdivision, duplicate the huge image and mask only the region that the subdivision represents), but I dont know the performance costs of masking or if this will create other problems.So is there anyway to split up a movieclip of vector graphics into smaller movieclips of vector graphics the same way copyPixels can with bitmaps?
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Nov 16, 2010
I'm looking to build a website that has a flash interface and allows visitors to upload vector art in a number of file formats such as SVG, EPS and AI.
I have two rather large problems...
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2) After the user potentially loads a number of images, adds some text, rotates or transforms some elements, I need to save the resulting composition into a vector art format that I can print.
I'm not much of an AS developer...my experience is mostly in .NET/C# & C++. I'm looking for a good library or API that provides the functionality I will need to convert different image formats and save the results. How much of this can be done using Flash / AS...? How much in C#...?
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Apr 9, 2009
I've checked on the web, but I can't find an article/explanation on how to import vector graphics from illustrator into Flash.If this isn't possible, how do you go about dynamically importing it (not in the swf)?
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Oct 23, 2010
I can't seem to find free vector art made with flash. I want something like an FLA file I could open up and have a button or something nice looking to copy and paste. Does such a place exist?
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Aug 9, 2010
I need to create flash content dynamically- towards that need to build images. I need help on two points
a) are vector graphics always better than raster graphics on size/ do vector graphics take longer to render
b) do we have open-source tools to create fxg files to import into flex builder
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Jul 5, 2011
Our scenario is that we have a visualisation in a flex .swf that we load data into (through a web service call). Once the data has been loaded we would like to use the resultant image in a PDF.I can send an image of a DisplayObject back to the server as a PNG and put it into a PDF (using iText), but the png is not scalable and it looks bad in the PDF at different zoom levels.To add a bit more clarity. The visualisations are not vector graphics that we import or embed during development, they are charts and trend graphs and custom visualisations created through the flex/flash drawing API, at runtime, based on data retrieved from the server.
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May 19, 2010
i'm trying to build a circle using lines. each line starts in the centre of the circle and is as long as the circle's radius. using a loop along with sine and cosign waves, i can build the circle using the sine and cosign to mark the coordinates of the lineTo parameter.
my problem is with the line thickness parameter of lineStyle. i would like the ends of the lines to match up perfectly, no matter how big the circumference of the circle, but i can't figure out a proper method for the line thickness.
//this is what makes sense to me, but it still creates some gaps
lineThickness = 1 + (((nRadius * 2) * Math.PI) - 360) / 359;
for(var i:int = 0; i < 360; i++)
[code]....
to make the ends of the lines meet up at the circles circumference, without any gaps, i need to widen the lines to fill in the space that's remaining. what makes sense to me, but doesn't work, is to subtract the 360 from the circumference, then divide that number by the amount of empty slots between the lines (which is 359) and adding that number the the thickness of 1.
what's concerning me is that the lineStyle thickness parameter is a Number, but seems to take only values between 0 and 255, so i'm not sure if a floating point number like 1.354 is a valid thickness.
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May 19, 2009
i have found a beautiful water effect made in as3. The effect is available to download on the website below.I am trying to change the fill of the water (that is blue or any color that you pick).The original code fills the water like this:
Code:
public function renderWater():void {
shape.grapics.clear();
shape.graphics.beginFill(0x006699);
shape.graphics.lineStyle(0, 0x000000, 0);
[code].....
I tried to follow the instructions on the beginBitmapFill help, but i am receiving the water with no fill.
[code]...
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Aug 24, 2009
I've done some searching and can't find a good answer on workflow for importing vector graphics in Flash 8.I created a layered Photoshop file and opened in Illustrator to save in .eps format. I'm using Flash 8 and Illustrator CS3. I've tried many options (including trying to simply create my buttons in flash), but can't seem to get the buttons to import properly for scaling purposes into Flash.
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Oct 14, 2009
I am making an application, that will let you enter your name and then a car will drive each letter of your name in the sand. I have made a car and my artist made letters with vector graphics as a single line (.ai). But now I don't get how to make an algorithm that will drive through the lines of each letter. My first solution would be to make an editor, where you can create path, but I don't have that much time. Is there a chane to make path from vector graphics so that the care can drive through it?
Attachments:
letter.jpg
(21.0 K)
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Oct 20, 2009
I'd like to know if there is any way or any vector graphic file format that i can load dynamically at runtime on a web-based flash application.I have some files in pdf that i want to load in and i can convert them to jpgs at runtime and load the jpgs but then i lose vector graphics so when i zoom in and out they become pixelated.
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Nov 20, 2009
I've got a project that heavily utilizes the new 3d artwork tools in Flash CS4. My question is has anyone done any tests to see if Flash is quicker with raster or vector graphics? My SWF really bogs down on slower machines.
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Nov 15, 2010
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May 19, 2011
i've developed an cross-platform AIR application, which seriously under performs on mobile devices caused by animating/using vector graphics instead of bitmap assets. employing cacheAsBitmapMatrix / cacheAsBitmap is better, when and where assigned appropriately, but still not as fast as using bitmap assets.
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May 20, 2011
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is it possible to erase vector graphics run time...
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Oct 13, 2011
If I have a rectangle which has a fill of blue and stroke of orange how can I change the stroke to black and the fill to red using actioncript.
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var myColor:ColorTransform = myRectangle.transform.colorTransform;
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[Code]....
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Jun 16, 2010
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- optimized those shapes as much as possible
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May 15, 2009
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Sep 28, 2010
Code:
var myArrow:ArrowMovieClip = new ArrowMovieClip();
var vectorDisplayObject:DisplayObject = stage.addChild( myArrow );
I used the code above to create an instance of an arrow graphic that I made using the line tool (the graphic is embedded in a movie clip). I now want to add different colored fills and different stroke sizes and colors using code. Is it possible to do this with pre-drawn vector graphic objects, or is it only doable if I create the arrow with code using things like lineTo and curveTo?
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Dec 20, 2009
can i import vector graphics file *.ai file(illustrator generated) into flex3 ??
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