Re: [Flashcoders] anti-aliasing
A quick thought, Anthony... why reinvent the wheel? Why not use Flash's built-in graphics.moveTo()/graphics.lineTo() etc. to draw _vector_ lines into a Sprite (which will therefore be nicely antialiased by Flash), then capture the results as a bitmap and paste them into whatever BitmapData you are trying to create? It will be a lot faster at runtime than plotting a line pixel by pixel. Unless you have a specific need to do that! Cheers, Ian On Mon, May 18, 2009 at 4:48 AM, Anthony Pace anthony.p...@utoronto.ca wrote: I already know how to draw shapes using the built in tools. and the math for it is not a problem in the slightest; yet, it is the anti-aliasing of the lines, when trying to draw them with setPixel() or setPixel32, that I am new to. Ron Wheeler wrote: You are on the right list. To get some help, you will probably have to give more details. - 2D or 3D - vectors or rasters - images or drawings - what kind of shapes - dynamic or static - data driven or algorithmic - user interaction desired - low-res icons or sprites for a game or beautifully rendered images suitable for printing Google is also your friend. Ron Anthony Pace wrote: Hello, I am trying to draw shapes using pixel manipulation, and I am pretty sure I understand most of the concepts; yet, as I am pretty new to this, I am unsure how to go about doing this most efficiently in code. Does anyone have any links, tutorials, commented code? Are there tried and true formulae I should be using that you may know of? or should I just look at converting a library from another language because there is no point reinventing the wheel because the best formulae have been found? should I be discussing this on a different list? Thanks, Anthony ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] anti-aliasing
I have heard of and looked at Xiaolin Wu's line algorithm, and I am wondering if there is a better way. Anthony Pace wrote: Hello, I am trying to draw shapes using pixel manipulation, and I am pretty sure I understand most of the concepts; yet, as I am pretty new to this, I am unsure how to go about doing this most efficiently in code. Does anyone have any links, tutorials, commented code? Are there tried and true formulae I should be using that you may know of? or should I just look at converting a library from another language because there is no point reinventing the wheel because the best formulae have been found? should I be discussing this on a different list? Thanks, Anthony ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] anti-aliasing
You are right, in most scenarios you would want to use built in functionality; however, outside of regular applications in as3, there are a lot of reasons to know this well, and graphics applications that would be impossible by relying on what is built in. Ian Thomas wrote: A quick thought, Anthony... why reinvent the wheel? Why not use Flash's built-in graphics.moveTo()/graphics.lineTo() etc. to draw _vector_ lines into a Sprite (which will therefore be nicely antialiased by Flash), then capture the results as a bitmap and paste them into whatever BitmapData you are trying to create? It will be a lot faster at runtime than plotting a line pixel by pixel. Unless you have a specific need to do that! Cheers, Ian On Mon, May 18, 2009 at 4:48 AM, Anthony Pace anthony.p...@utoronto.ca wrote: I already know how to draw shapes using the built in tools. and the math for it is not a problem in the slightest; yet, it is the anti-aliasing of the lines, when trying to draw them with setPixel() or setPixel32, that I am new to. Ron Wheeler wrote: You are on the right list. To get some help, you will probably have to give more details. - 2D or 3D - vectors or rasters - images or drawings - what kind of shapes - dynamic or static - data driven or algorithmic - user interaction desired - low-res icons or sprites for a game or beautifully rendered images suitable for printing Google is also your friend. Ron Anthony Pace wrote: Hello, I am trying to draw shapes using pixel manipulation, and I am pretty sure I understand most of the concepts; yet, as I am pretty new to this, I am unsure how to go about doing this most efficiently in code. Does anyone have any links, tutorials, commented code? Are there tried and true formulae I should be using that you may know of? or should I just look at converting a library from another language because there is no point reinventing the wheel because the best formulae have been found? should I be discussing this on a different list? Thanks, Anthony ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] anti-aliasing
Oh absolutely. :-) Just thought this might be a quick route to achieving whatever you're currently trying to achieve. :-) Ian On Mon, May 18, 2009 at 10:53 AM, Anthony Pace anthony.p...@utoronto.ca wrote: You are right, in most scenarios you would want to use built in functionality; however, outside of regular applications in as3, there are a lot of reasons to know this well, and graphics applications that would be impossible by relying on what is built in. Ian Thomas wrote: A quick thought, Anthony... why reinvent the wheel? Why not use Flash's built-in graphics.moveTo()/graphics.lineTo() etc. to draw _vector_ lines into a Sprite (which will therefore be nicely antialiased by Flash), then capture the results as a bitmap and paste them into whatever BitmapData you are trying to create? It will be a lot faster at runtime than plotting a line pixel by pixel. Unless you have a specific need to do that! Cheers, Ian ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] anti-aliasing
You are on the right list. To get some help, you will probably have to give more details. - 2D or 3D - vectors or rasters - images or drawings - what kind of shapes - dynamic or static - data driven or algorithmic - user interaction desired - low-res icons or sprites for a game or beautifully rendered images suitable for printing Google is also your friend. Ron Anthony Pace wrote: Hello, I am trying to draw shapes using pixel manipulation, and I am pretty sure I understand most of the concepts; yet, as I am pretty new to this, I am unsure how to go about doing this most efficiently in code. Does anyone have any links, tutorials, commented code? Are there tried and true formulae I should be using that you may know of? or should I just look at converting a library from another language because there is no point reinventing the wheel because the best formulae have been found? should I be discussing this on a different list? Thanks, Anthony ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
