Perfect Curve in illustrator

How to create perfect curve in illustrator?
I try to make the shapes as perfect as possible, but ultimately it doesn't look perfect....it looks slightly distorted....Please if someone can give me tips to make perfects curves.
I'm attaching an image to plain my situation. The round of glasses doesn't look perfect...... Please suggestions.....

shalabilaaji,
You have at least 6 Anchor Points in the eyewire to the left, and I believe that creates the irregularity you are concerned about; there is no need to have more than four.
If you like the overall shape and wish to work on with it, you may (Smart Guides are your friends saying where you are (path/anchor/handfe)):
0) Lock the original;
1) With the Pen Tool ClickDrag with Shift held down from the 4 spots where the eyewire is horizontal/vertical, dragging to obtain a reasonable fit, see the Spacebar method in post #3;
2) Deselect and use the Direct Selection Tool to move the Anchor Points and individual Handles to fine tune.
You may also start over from an ellipse/circle, possibly on top of your present version, and move the individual Anchor Points and Handles. When you move the right/left Anchor Point up, the curve above it will become more angular, and you may drag the lower Handle down to recreate the roundness of the curve below it.
Edit: Reread my first sentence in post #3.
And what Steve said.

Similar Messages

Need help creating perfect curves and outlines (CS3, Windows XP)

Is there a way to make a specific curve that is perfect? It seems that with the pen tool you have to "eyeball" the curve as you drag it. I know that you can use the ellipse tool to make a perfect circle and then use the eraser or scissors tool to cut out a section of it, but that isn't really an ideal method. What I'd like to be able to do is while creating a path with the pen tool place an anchor for the next segment of the path and then specify e.g., a 6" radius, and have it make the path with a perfect 6" radius curve.
I also have a question about outlining, or more specifically, creating a perfect "floating" outline around curved objects. Using this image as an example - http://farm4.static.flickr.com/3153/2894804973_a6bf492692_o.png - once you have created one of the outlines, is there a way to perfectly create the other two "floating" outlines? I did those manually, and the straight sections are perfect because that's easy; but the curved sections are not perfect; they are "eyeballed".

[Man after my own heart]
> Is there a way to make a specific curve that is perfect?
Not with anything even approaching a sensible, no-nonsense procedure. What do you expect? This is only the top-selling vector drawing program, and it's only been on the market for 20+ years, charging loyal customers a couple hundred dollars for 14 version upgrades so far.
There are two--count 'em, TWO--Round Corners commands. One is a Filter, the other is an Effect. Both prompt you for a radius. Whether you actually get the value you enter as a radius of the curve is a matter of so many ridiculous caveats that you might as well consider it useless.
Example:
Assume your Ruler units are set to inches.
1. Rectangle Tool: Click. (Don't drag.) In the resulting dialog, enter 1" for both height and width.
2. White Pointer: click the lower left anchorPoint to select it. Delete. Now you have the most basic of all figures you might want to put a specified radius on, right? A 3-point path forming a right angle. Furher, you know its height and width; both legs of the right angle are 1" in length.
3. Filter>Stylize>RoundCorners. In the resulting modal dialog, enter .75" for the radius. Click OK.
4. The corner rounds.
5. DirecSelect (sigh--white pointer) the rounded segment (not the points, the segment). Copy. PasteInFront.
6. Look at the Transform Palette and tell me the height and width of the arc (should be equal to the radius, right? Tell me what you get. I get .5".
Why does Illustrator work this way? The only feedback I ever get when I raise issues like this is something akin to, "James, not everyone wants to do
technical drawing like you."
A straightforward user-defined corner radius is too
technical for the top-selling "professional" vector drawing program.
So what do you do? A lengthy barrage of cheezy workarounds and inane defenses of the indefensible is sure to follow shortly.
JET

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Just upgraded to cc & noticed that curved tapered paths are not smooth. Thought it might be just a screen rep issue so outlined the path. However, the inaccuracy was confirmed as the outlined version was riddled with points.
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See screen grabs below.

Hi Monika
Thanks for your reply.
So This is a known bug in the programme?
I tested it by going back to CS5.5 & there were no issues.
In that case I will have to use the old version of illustrator until it is fixed which is rather annoying & will be tricky to install on the new Macbook as it has no dvd drive.
Is there a url which lists all the known bugs?
Do you know Adobe looking into this as it is pretty major?

Learning Curve on Illustrator

I current use Photoshop CS5 and Lightroom 3. I would like to try Illustrator. Is there a real steep learning curve on it or can an individual grasp it simply by following some of the tutorials available?

I current use Photoshop CS5 and Lightroom 3. I would like to try Illustrator. Is there a real steep learning curve on it or can an individual grasp it simply by following some of the tutorials available?

Jagged Lines on curves in Illustrator need help

This picture speaks for itself, it looks TERRIBLE no matter what zoom your at. Pixel Preview is off And anri alising is turned on. Why does this look liek garbage?

ok i saved it to pdf and also viewed it on a different screen (iphone retna) still jaggedy but not as bad as the original.
Is there a better way to make that curved line besides the pen tool? because your right there are few anchor points and it took a decently long handel to get that curve

Has anyone a legit method for creating pixel perfect graphics in Illustrator CC2014?

AI does not align the sides of rectangles precisely to pixel grid no matter what I do. I have even set the grid lines to 1px, tried to input the size and coordinates by hand but the setting jumps back to funny numbers like 213,004 px. I have a workaround for lines - though also very tedious: setting the length and the coordinates by hand - the position must be 0,5 pixel otherwise the precision breaks down when imported into PS.. it is frustrating that AI cann´t align automatically to pixels, but it´s surprising that input by hand doesn´t seem to work either. please help!

while struggling around, I have unchecked “snap to pixel grid“.. this eliminated the funny numbers problem .. the coordinates and size stay the same now (who would expect this ) .. still it is very tedious to type everything, that´s why I´m still looking for a trick to make pixel-sharp edges without the need of typing the numbers - if there is any.

Circular Curve Distortion Illustrator 3D/Filter Help?

Hello I am trying to create a circular graphic that is similar to a race track turn with banking. Is there a type of distortion filter or 3d that I can use that can help me create the feeling of a vanishing point that bends around a turn?
Below is sort of the feeling
Thank you

You can do it wwith a simple path with a stroke or two and using the 3D Rotate effect with the option to use a perspective on it. You use no fill on th e path just strookes you get this
This is without the previw on
This is with the preview turned on

Poor quality of PNGs exported from Illustrator, in documents that are then PDF'd

Hi All,
This is a strange one, which has taken up a lot of time to try to solve.
I crreated a package of variants on the company logo and exported them from Illustrator as PNGs. I even tried them at 150dpi - then 600dpi.
When I put them into MS Word or Apache Open Office documents they look perfect: sharp, crisp, perfect curves. Hurrah!
However, when I export those text documents as PDFs from MS Word or Open Office, the logos look terrible and ragged.
I have all the settings correct when I export as PDF - lossless compression, print quality etc. If the logos are SVG images [vector], they are perfect PDF'd from Open Office but I can't use those in MS Office. Aggh!
After a lot of experimentation and discussion over at Apache's forums - there was no solution, until...
I pasted the logo artwork from Illustrator into Fireworks - of all things - and saved it as a 300dpi flat PNG from Fireworks. That PNG works perfectly when in a document that's exported as a PDF. I wouldn't be at all surprised if one from Photoshop would be good too.
So - I think that - the common denominator/crux of the matter is the PNG files that are created by Illustrator. They appear great inserted into documents but don't survive a subsequent PDF export well at all.
I'd love to read any comments on this?
[Also, for laughs, I tried high res/high quality TIFFs and JPEGs from Illustrator, and had the same problem]

johnivanwhite wrote:
Hi John M,
Microsoft .WMF format. [.WTF?] is pretty good in the resultant PDF. However, when you zoom in to the PDF, the curves get a bit rounded-polygonal, in a smooth-bumpy way. Odd - not a huge issue unless people zoom in. However, it is evident if they print it. And they will.
Right. What you're seeing there is the Windows Metafile format's lack of support for bezier curves. Close inspection reveals curves that are made up of many small straight line segments.
However...
That's why I asked about platform. Running Windows, it's possible to Copy from Illustrator and Paste Special > Enhanced Metafile in MS Office apps. With that procedure, the result is vectors that land in Office without the full WMF conversion and resulting segmentation.
To demonstrate; I made a small circle in Illustrator with a black stroke and yellow fill.
1. I exported to WMF, then inserted in Word and exported to PDF.
2. I copied from Illustrator and used Paste Special > Enhanced Metafile in Word, then exported to PDF
Compare the results (zoomed to a quadrant in Acrobat):

Please help re auto-curve line altering feature

to all Illustrator artists and experts: Can you please tell me the name of the Illustrator auto-curve line altering feature and how to adjust it or turn it off? When I draw a line, and want that line not to be a perfect curve, when I complete the line Illustrator automatically alters it to make it a perfect curve. This is changing my original line from what I intended to a homogenized curve I didn't intend. Thank you for any help you can provide!

can't Illustrator simply save each part of my various movements as I draw the line - without "snapping" them all away
DoubleClick the Pencil or Brush tool (the tool icons in the program, not your hardware stylus) and turn off the Edit Selected Paths option. (This is a one-time setting. You don't have to revisit it each time you draw a path.)
You must use the Pencil tool or the Brush to achieve the results you desire. The Pen tool is specifically made to produce Bezier curves.
For clarity: All of the path drawing tools in Illustrator (including the Pencil and Brush) draw Bezier curves. They just employ different user interfaces for doing it.
The Pen Tool (the software tool in the program, not your stylus) employs an interface intended to allow you to explicitly place each anchorPoint and curve handle exactly where you want it. That's its purpose. So there is no "smoothness" setting for the Pen tool. The Pencil and Brush tools try to programmatically and automatically construct Bezier curves by interpreting the bitmap "path" you scribe by stroking with the pointing device. Therefore, they have Smootness settings to alter the interpreting algorithm.
That's pretty much standard practice across drawing programs like Illustrator.
There are a few commands (Roughen, Zig Zag, etc.) in the Filters (CS3) and/or Effects (CS4) menus to alter the jaggedness of selected path(s) after you've drawn them.
Generally, though, I agree with the comments of others: You need to sit down with the documentation and work through learning the program. Franky, I would add that you'd be better off doing that without using a stylus, just to minimize confusion. If you work with a mouse, you'll know what the program is capable of and how results are supposed to be achieved. Then, when you use the stylus, you'll be better able to discern whether a problem is due to a limitation of the program, or if it is something about your stylus settings, or just the small handful of stylus-supportive features in the program.
JET

Exporting differences in Illustrator CS6

I have png files that were exported from an earlier version of Illustrator, possibly CS1 or CS2, that were used for a company website. I have now tried exporting new png files from the same original source files within Adobe Illustrator CS6 and I have noticed that the exports have now taken on a different appearance. They are noticeably brighter and thus appear to be washed out. I would say that the problem is most noticeable on those parts of the source file which consist of gradients.
What I have done so far is to try using different colour profiles but to no avail. The problem that this causes me is that the new exports do not appear to blend in on the website, and what was once a perfectly curved area is now square in appearance.
I have spent many works working on this problem. Any kind of feedback on this issue would be appreciated.

The disparity of colour only seems to be a problem in browsers Internet Explorer 6 and Internet Explorer 8, possibly other older versions. I have tried the exports from Illustrator CS6 and they appear as intended in Mozilla Firefox, Google Chrome and even Safari on the iPhone.
Curiously enough, I have tried exports from Illustrator CS1 and have discovered no issues at all. The exports look fine on every platform I have tried. Someone somewhere must know the reason for the perceived differences, not that the information is readily available. It is not just an issue restricted to png files, it also occurs with gif files also.
May be there is some update which I can apply that will allow the exports to be generated as previously.

Passing a variable from Photoshop to Illustrator

Alright, so I've been on here a lot the last couple weeks trying to figure out BridgeTalk, and I am starting to get the hang of it. I am writing an Illustrator script which will open a specified template and then grab Photoshop's active document and place it on the template. I have everything working perfectly with one hiccup. The script goes to Photoshop, grabs the filepath, opens the Illustrator doc, and places the file perfectly. BUT it always takes two runs through the script for it to work. It's the weirdest thing. So if I run the script when PS first opens, it gives me an error; if I run it again it works perfectly, but if I close that PS doc and open a new one, then run the script, it places the previous document!
I am stumped and have tried everything I can think of. Here is a simplified version of the part of the script that produces the error. The first time I run the script, "alert(psFile)" is completely wrong, but when I run it again it works perfectly.
#target illustrator
var psFile;
infoFromPS ();
var illTemp = File("/Users/art1/Desktop/template.ai");
    app.open(illTemp);
var doc = app.activeDocument;
function infoFromPS() {
   var bt = new BridgeTalk;
   bt.target = "photoshop";
   bt.body = "app.activeDocument.fullName;"
   bt.onResult = function(resObj) {
      var myResult = resObj.body;
      psFile = File(myResult);
   bt.send();
alert(psFile);

this simplified version is so simplified that is not connecting illustrator with photoshop in any way to be able to tell...but in any case, your script is not waiting for the result, it keeps going after you send it, that's why you get an error the first time, then after you get the previous result
it goes like this the first time
var psFile; // undefined
infoFromPS (); // I'm not waiting for bridgeTalk to fetch me the result
alert(psFile); // psFile is undefined,
//...bridgeTalk returns the result after you're done
psFile = 'some file';
second time, or after you change the ps activeDocument
var psFile; // I still have in memory the result from previous run ('some file')
infoFromPS (); // I'm still not waiting for the result
alert(psFile); // psFile is 'some file' from previous run,
//...bridgeTalk returns the result after you're done
psFile = 'some other file';

Pasting from Illustrator to Photoshop doesn't maintain aspect ratio

I have vector artwork that is not aligned to a pixel grid in Illustrator. In CS5, I would be able to paste the vector object as a smart object into Photoshop file that was larger than the illustrator image and resize larger while holding shift to keep the ratio the same.
However with Creative Cloud, if I have a square in Illustrator that happens to be 17.3px by 17.3, then paste to Photoshop in a file that has a larger canvas than the paste, I get uneven horizontal and vertical ratios (width = 18; height = 17). It seems to overestimate the width and make it appear fatter horizontally (which is the wrong aspect ratio). This is very noticeable when vector objects (like perfect circles and small icons) get scaled up in Photoshop.
I have tried unchecking and checking "Snap Vector Tools and transforms to Pixel Grid" but this doesn't seem to fix it.
The only way I've been able to get this ratio to be kept is to create a new document with the size automatically changed to clipboard dimensions (which are the desired 17x17). When you paste as smart object, it now uses the correct aspect ratio.

When you paste an object into Photoshop take a look at your options bar to see if the Maintain Aspect Ratio button is checked. I'm guessing that it isn't which is why Illustrator objects are being pasted at different heights and widths. As you can see in the image below, a perfect circle from Illustrator is being placed in Photoshop at 100.05% and 99.44%. By checking the link button between the two percentages the numbers get locked to the same percentage so that the object is pasted in at the correct dimensions.

How to create a linocut/printed surface aesthetic in Illustrator CS3?

Hi,
I'm looking to create a linocut/printed surface look in Illustrator for a project that i'm working on. I'd love to get my hands dirty and make it for real but unfortunately the timescale i'm working to won't allow for such a luxury. Is there a way to do this?
I've included the image below to give an idea of the sort of thing i'm after.
Cheers!

If you are trying to get a more textured feel to the linework than the normally perfect vectors that Illustrator creates, you might look at the various effects. I'd say "roughen" off the top of my head from the look of the art sample.

Question for the Adobe Illustrator team or anyone who might know

Is Adobe Illustrator meant only to use Bezier curves? I know that they are very useful for a number of curves, but are they used to approximate circles? Granted, all screens require rasterized objects to the nearest pixels in order to display them, but when drawing a circle, information is lost because it is converted into 4 Bezier curves (cubic or quadratic, I'm not sure). However, when I export a circle from Adobe Illustrator CS5 to SVG it preserves the circle or ellipse's information with its proper tag.
So, my question is, does the Adobe Illustrator Artboard file format have some internal representation of ellipses and circles such that it it not broken down into Bezier curves?

function(){return A.apply(null,[this].concat($A(arguments)))}
when I export a circle from Adobe Illustrator CS5 to SVG it preserves the circle or ellipse's information with its proper tag.
So what? That means nothing. You're just talking about terms within a progamming language. One could program Illustrator to export a freakin' square as SVG's circle tag if one wanted to.
As explained in your previous thread about the same worry-wart subject:
There being a "circle element" in SVG programming, in itself, means nothing. I can write you a Javascript called "Illustrator's Circle Element" that will work in Illustrator, that will prompt you for center coordinates and a radius, that will appear in one of Illustrator's menus, and that will cause Illustrator to render that which for any practical purpose is a circle. The presence of such a command in no way signifies to you what kind of curve-rendering math is employed by that "element" to actually plot the curve!
By the same token, SVG's providing something called a "circle element" in its API and asking you to specify it in terms of center and radius in no way tells you what kind of curve-rendering math is actually being employed to render the curve, nor does it ensure that its rendered result will be any more precisely mathematically circular than rendered by a cubic Bezier curve. If you don't know for a fact that SVG's rendering math does not employ Bezier curves, then your concern is moot.
It's moot anyway, because it's ridiculous. Again: the "inaccuracy" is so tiny as to be completely pointless for any practical SVG purpose.
Again: You are reading entirely too much into a mere popularly-cited curiosity about the cubic Bezier equation. You are being silly; you just don't realize it.
Illustrator's (i.e; PostScript's) using Bezier math to plot curves does not make Illustrator (or any of the similar programs) in any way "sub standard" or "less accurate" or "less desirable" or more "dumbed down" than any other. In fact, here are some other related curiosities for you to loose sleep over:
The math primarily used for plotting curves in most CAD programs is quite arguably "more crude" than Bezier curves.
Illustrator uses cubic Beziers. TrueType uses quadratic Beziers. But there are Bezier equations of higher order than cubic.
(If I remember right) Bezier himself discovered the formulae bearing his name in pursuit of more supple curves for the automotive industry.
If you're still worried about this, you really need to go take a couple of math courses, so you can understand that this really is silly.
JET

How to: Mathematical Equations in Illustrator CS3 +

One feature that doesn't exist in Illustrator (or I haven't find it yet!), is a way to add Mathematical equations into illustrations. Having search the internet there are a few plugins that allow that to some extend. Personally I found one another way to do it, combining Illustrator, Photoshop, (Acrobat - not necessarily) and the Free OpenOffice Math tool.
If you are interested, or if you ever need this, you can refer to this guide:
http://xvp.gr/tutorials/illustrator_math_eqs/
The basic idea is to export in vector-PDF file, the math equations that you have develop with any program (i.e. MSOffice, or OpenOffice(which I prefer)). Then you can raster the equation in high resolution through photoshop (from the vector-PDF file), and trace it to perfect outlines via illustrator.
Btw. OpenOffice Math tool, is an open source tool, that Adobe can utilize thus to make automatical this procedure in it's next suite. Simple and easy without having to mess with complicated implementations... :)

I use MathType to make equations for years.
And it works fine with all Adobe (and NOT only Adobe!) software.

Perfect Curve in illustrator

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