Feature request - Akima spline curves for vector graphics

Akima spline curves give drawing freedom, at least some kind
of interpolating spline curve where you can just simply lay the
points down and the curve follows along the points - I can't get
bezier curves to do what I want. It's like
Alice in wonderland using a flamingo for a mallet in a game
of croquet. unweildly.
Bezier Curves were introduced into Windows NT and all windows
NT family products after that. It
soon followed that all paint programs began including Bezier
Curves as a drawing method. Big
mistake. They should have introduced Akima spline curves into
Windows. I am not saying take
Bezier curves out - I am saying Add Akima Spline curves, or
the bettered (modified) version of
Akima Spline curves that doesn't react as much. At least some
type of interpolating spline curve
where you just lay the points down and the curve follows the
points.
Akima spline curves are cool. just put points along where you
want the curve. simple. you just
need more points around sharp edges, or you get a "ringing"
effect around that area. (See
discussion and visuals link).
part of the challenge of using Akima spline curves is that
the first 2 data points must be faked
or dropped. same goes with the last data point. this can be
taken care of with some simple
engineering tricks.
http://en.wikipedia.org/wiki/Spline_(mathematics)
Wikipedia article on Spline curves (mathematics). This does
not cover the Akima Spline, which
keeps its curve along the data points rather than just near
it like a B-spline curve does.
http://www.cse.unsw.edu.au/~lambert/splines/
demonstration of the various curve types in action. (requires
Java) play with the spline curve for
a while (delete the existing points other than 0 first to get
started)
http://demonstrations.wolfram.com/BSplineCurveWithKnots/
B-Spline curve with Knots (can be active demo)
GNU Scientific Library Reference Manual
http://www.network-theory.co.uk/docs/gslref/InterpolationTypes.html
book - has Akima Spline & Cubic Spline. See also
http://www.gnu.org/software/gsl/manual/html_node/Interpolation-Types.html
GNU Manual
http://www.iop.org/EJ/abstract/0031-9155/18/4/306
PDF file from medical site on akima and spline methods and
its associated errors. Recommendations
for fixing the significant overshoot on abrupt changes, and
suggestion to use more closely spaced
points around those regions. must purchase.
http://portal.acm.org/citation.cfm?id=116810
The Akima Univariate Interpolation Method (spline) article
from the acm. by Hiroshi Akima.
requires web account and probably money to buy the PDF
article.
http://www.iue.tuwien.ac.at/phd/rottinger/node60.html
Equations for Akima Spline
http://www.alglib.net/interpolation/spline3.phpdiscussion
and visuals of Akima Spline and its
drawbacks. also has source code in C++, C#, Delphi, VB6,
Zonnon.
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TYG-414N645-
2&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersi on=0&_us
erid=10&md5=17dccffcfa40e5b420c7c377fc24b5f7
pay-for article on some sort of improved-smoothness spline.
Shape of data is preserved.
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=1814&objectType=f ile
MATLAB model.

add your wish:
http://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

Similar Messages

Akima spline curves for vector graphics

Akima spline curves give drawing freedom - I can't get bezier
curves to do what I want. It's like Alice in wonderland using a flamingo for a mallet in a game of croquet. unweildly.
Bezier Curves were introduced into Windows NT and all windows NT family products after that.
It soon followed that all paint programs began including Bezier Curves as a drawing method. Big mistake. They should have introduced Akima spline curves into Windows. I am not saying take Bezier
curves out - I am saying Add Akima Spline curves, or the bettered (modified) version of Akima Spline curves that doesn't react as much.
Akima spline curves are cool. just put points along where you want the curve. simple. you just need more points around sharp edges, or you get a "ringing" effect around that area. (See discussion and visuals link).
part of the challenge of using Akima spline curves is that the first 2 data points must be faked or dropped. same goes with the last data point. this can be taken care of with some simple engineering tricks.
http://en.wikipedia.org/wiki/Spline_(mathematics)
Wikipedia article on Spline curves (mathematics). This does not cover the Akima Spline, which keeps its curve along the data points rather than just near it like a B-spline curve does.
http://www.cse.unsw.edu.au/~lambert/splines/
demonstration of the various curve types in action. (requires Java) play with the spline curve for a while (delete the existing points other than 0 first to get started)
http://demonstrations.wolfram.com/BSplineCurveWithKnots/
B-Spline curve with Knots (can be active demo)
GNU Scientific Library Reference Manual
http://www.network-theory.co.uk/docs/gslref/InterpolationTypes.html
book - has Akima Spline & Cubic Spline. See also
http://www.gnu.org/software/gsl/manual/html_node/Interpolation-Types.html
GNU Manual
http://www.iop.org/EJ/abstract/0031-9155/18/4/306
PDF file from medical site on akima and spline methods and its associated errors. Recommendations for fixing the significant overshoot on abrupt changes, and suggestion to use more closely spaced points around those regions. must purchase.
http://portal.acm.org/citation.cfm?id=116810
The Akima Univariate Interpolation Method (spline) article from the acm. by Hiroshi Akima. requires web account and probably money to buy the PDF article.
http://www.iue.tuwien.ac.at/phd/rottinger/node60.html
Equations for Akima Spline
http://www.alglib.net/interpolation/spline3.php
discussion and visuals of Akima Spline and its drawbacks. also has source code in C++, C#, Delphi, VB6, Zonnon.
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TYG-414N645-2&_user=10&_rdoc=1& _fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_us
erid=10&md5=17dccffcfa40e5b420c7c377fc24b5f7
pay-for article on some sort of improved-smoothness spline. Shape of data is preserved.
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=1814&objectType=f ile
MATLAB model.

Jim,
Other drawing programs have other spline tools in addition to the ubiquitous Bezier tool.
FreeHand's Bezigon tool draws Beziers, but does so with an interface that lets you just click where you want points on the path, and then auto-conforms the curve points that you place according to where you place the next point, yielding results much like the Java applet you linked to.
Canvas's Auto Curve tool behaves almost exactly like the Java applet.
Although I'm not
opposed to a drawing program having multiple interfaces for creating spline curves, I have no desire for them. I never use the Bezigon tool in FH, and never use the Auto Curve tool in Canvas. I view them both as accommodations to beginners who initially think Bezier tools are unapproachable. I dare say the vast majority of proficient vector illustrators would agree. (No offense intended to any experienced users who find them useful.)
So while I can't say whether Canvas's Auto Curve tool actually uses the Akima equation you seem to be fond of, it's interface and behavior seems identical to what you seem to desire, and in that respect is therefore nothing new to drawing programs.
As far as Illustrator goes, I'd much rather development time be dedicated to far more fundamental and universally important things that it still lacks relative to the other mainstream drawing programs.
Illustrator still has no decent cutting tool. No user-defined drawing scales. No dimension tools. No connector tools. Poor snap behavior. Too limited value entry fields. Excruciating text performance. Bizarre Character and Paragraph style behaviors. No geometric shape primitives. No proper radius/chamfer/fillet feature. No joining of multiple paths at once. An old-fashioned modal-dialog-heavy and poorly-organized and too-cluttered interface. The list is quite long; and on
my list (for whatever it's worth), alternate interfaces for interactively drawing spline curves point-by-point does not even appear.
The Bezier curve is inherent to PostScript drawing programs, and the conventional click-or-clickdrag interface for them is practically universal. It is fluid, accurate, supple, and economical in the number of points it creates. It dominates for good reason. (That's not to say AI's particular
implementation of it couldn't be better; it could. FreeHand's is better.)
So while I'm all for truly valuable "new wrinkles," this is one I don't see any practical need for.
What actual benefit do you see in it?
JET

AIR performance for vector graphics

Hello,
I prototyped an app in AS3, and now I want to move it iPhone. When I had came to this forum before a while back (it was called something else; the Flash to iPhone convertor wasn't a part of Adobe AIR), I got scared by the performance issues reported by the users. Therefore, I recently bought a Mac Mini to do iPhone development with the intention of porting it using Cocos2d-X. After going through the APIs and examples, I see that Cocos2d-X is not as good as AS3. My app uses a lot of vector graphics. My apps uses 100+ vector Sprites with different fill effects. I could also apply transformations on them. I've read the performance for the iPhone has improved, but how is the performance for vector graphics?
Thanks.

Does AIR 3 for iPhone use OpenGL ES 2.0 in the backend?
Judging from this http://www.adobe.com/products/air/tech-specs.html they imply they don't.

Feature request: Slideshow module support for video files

I'm very excited about your MTS support!
Feature request: Slide show module support for video files...
Say you have 10 takes to choose from. Are you able to almost like SLIDESHOW view the 10 clips full screen so you can decide, like a playlist? Or rate them as they play? It would also be great, like SLIDESHOW to be able to export a MP4 with a title, the 10 clips you are working with, and maybe add an end title and a song, just like SLIDESHOW.
I have found editing stills like this in slideshow far faster than in any other editing program.
Basically, I just need a fast means to view or export an MP4 of a set of video clips to review. You are almost there.
great job!!!
Max

I was also disappointed that video is not supported in the slideshow module -I currently have to use another solution when I want stills mixed with videos, would be great to be ablo to keep it all in LR!

Feature Request: use volume rocker for brightness

I find myself wishing I could adjust the screen brightness quickly using the rocker switch currently dedicated to volume. I seldom have need to adjust the volume, and if I did, it would also be helpful is that function could just be part of the open app, leaving the rocker switch to quickly adjust to changing light settings. (the auto brightness basically seems to have two settings: regular and slightly dimmer than regular)

Welcome to the forums, Tyrade. One of the first things to know is that we're all users here, just like yourself. While you may have a well-thought out feature request, posting it here goes nowhere.
Submit feedback here: http://www.apple.com/feedback/iPad.html.
Thanks.

Feature Request - Fonts to Curves

Apart from the UI issues of Acrobat DC, one feature I would like to see added is a button that converts fonts to curves.
The watermark / flattener preview method is unacceptable and clunky in 2015.

There is a single fixup in Acrobat DC Preflight under the Document category entitled “Convert fonts to outlines” that will do exactly what you want. No reason to request a feature that is already there!
That having been said, there are very few good reasons to convert text to outlines other than for very specialized artistic effects and you wouldn't be doing those in Acrobat anyway.
We are aware of various “print service providers” who are under the distinct wrong impression that converting text to outlines is somehow more reliable that leaving text as text realized by fonts. Other than some dicey, prehistoric RIPs based on non-Adobe technology going back over fifteen years or more, we are not aware of any problem during the RIP process due to fonts. If the font is embedded in the PDF and view correctly in Adobe Acrobat, it should RIP! If you have a “bad font,” you won't be able to view the PDF file in Acrobat nor will converting text to outlines even work.
There are also many downsides to this Luddite practice. You lose the hinting of the font and often end up with overly bold printed output, especially with fine detailed serif fonts at text sizes. The PDF files become very bloated. RIP and even display performance suffers terribly.
Adobe specifically advises end users to avoid print service providers who demand/require PDF files with so-called “outlined text!”
- Dov

Feature Request - CSS code generation for advanced font - type options

Thanks to everyone for the amazing work done in Photoshop and Illustrator to enhance the ability to generate and use character and paragraph styles translated to CSS. The last two releases have brought designers something they could only dream of and talk about for the last decade, and now these tools are being delivered!
This request is to consider being able to use advanced character styles in Illustrator, such as X/Y percentage height/width of fonts, rotation or baseline shift to generate CSS for these options. As of this post, I haven't been able to find that CSS3 even supports these options, except possibly the 'font-stretch' rule, which does not appear to be supported yet in most browsers - see CSS Fonts Module Level 3 - W3C Candidate Recommendation, October 2013.
Sometimes, designers get very picky about wanting type to look just so, including making fonts look taller or wider in a design, although perhaps much to the horror of the original type designer
thanks very much,
Mark

I'll also add this is a feature that should be carried over into Adobe Photoshop too.
Within Adobe Photoshop if you want to size type in terms of pixels the type is, again, sized according to the Em square. Unless you're setting type at pretty large pixel sizes the rendered type really ends up looking pretty bad. That's because the edge of the baseline and the edge of the cap height line are never aligned to the pixel grid. You end up with type that's fuzzy looking on all sides. If designers were able to tell Photoshop "make this lettering 20 pixels tall according to the capital letters" the lettering would looking a whole lot better. Perfectly crisp edges on the base lines and cap height lines.

Feature request: Allow direct connections for contacts only

Hello, on Windows there is an option "Allow direct connections to contacts only" as described on http://en.kioskea.net/faq/32357-skype-hide-your-ip-from-people-who-are-not-on-your-contact-list. Many people including myself would like to see this feature implemented in the Linux client. There are solutions to protect the IP from resolvers like setting up proxies. However, the performance of free SOCKS-proxies is mostly very bad. VPNs with an appropriate bandwidth also cost an amount of money and additionally, it is difficult to only route Skype traffic through a VPN. Setting up a VM with Windows or WINE just to run Skype is an overkill as well. I consider it inconvenient that this feature is implemented on Windows while - in my opinion - mainly Linux users being aware of security might be in need for this feature. Therefore, I request to implement such a functionality into the Linux client. Kind regards from Germany

If you want to enable that feature on a Skype client that does not offer it in the GUI you would have to do it manually. You can follow the guidance here and the same information applies to the Linux client and any other client you have root or file-level access to. http://community.skype.com/t5/Modern-Windows-from-Windows/Windows-8-IP-Hiding/m-p/2876437/highlight/true#M19476 Linux path:/home/Username/.Skype/YourSkypeName/config.xml

Feature Request: Third video output for script

It would be nice if VC allowed not only full screen output of the master video, but full screen outupt of the teleprompter while still maintaining control.
This would let somone be the talent, and someone be the director. If you run the teleprompter inf ull screen mode, it takes away the Director's screen.
It would mean a lot of memory and three video cards.
Other features: Ability to do more on the fly - such as run videos, sound, etc with hot keys, Video banks, etc. There are programs meant for church multi media that can do this (but can't chroma key, save video files, etc)

Great suggestion, I'll check 'em out. It also seems likely that somebody manufactures a FireWire-powered device that could do the job. I thought my old ADS PyroAV might work (Standard Def only, of course), but it only outputs a still picture of wherever Final Cut Pro's playhead was last parked. Crystal-clear video, but it essentially frame-stores and displays whatever still image it last "saw". Weird, huh?

FEATURE REQUEST: use type literal for primitive StoredMap creation

Mark, hello;
I suggest to incorporate into api classes like shown below to avoid boiler plate with primitive bindings;
the idea is to use TypeLiteral approach:
http://google-guice.googlecode.com/svn/trunk/javadoc/com/google/inject/TypeLiteral.html
so you can instantiate like this:
// note the tail
          PrimitiveStoredMap<String, Integer> map = new PrimitiveStoredMap<String, Integer>(database) {};
thank you;
Andrei.
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
import com.sleepycat.bind.EntryBinding;
import com.sleepycat.bind.tuple.BooleanBinding;
import com.sleepycat.bind.tuple.ByteBinding;
import com.sleepycat.bind.tuple.CharacterBinding;
import com.sleepycat.bind.tuple.DoubleBinding;
import com.sleepycat.bind.tuple.FloatBinding;
import com.sleepycat.bind.tuple.IntegerBinding;
import com.sleepycat.bind.tuple.LongBinding;
import com.sleepycat.bind.tuple.ShortBinding;
import com.sleepycat.bind.tuple.StringBinding;
import com.sleepycat.bind.tuple.TupleBinding;
import com.sleepycat.collections.StoredMap;
import com.sleepycat.je.Database;
public abstract class PrimitiveStoredMap<K, V> extends
          ConcurrentMapAdapter<K, V> {
     private static final Map<Class<?>, TupleBinding<?>> primitives = new HashMap<Class<?>, TupleBinding<?>>();
     static {
          addPrimitive(String.class, String.class, new StringBinding());
          addPrimitive(Character.class, Character.TYPE, new CharacterBinding());
          addPrimitive(Boolean.class, Boolean.TYPE, new BooleanBinding());
          addPrimitive(Byte.class, Byte.TYPE, new ByteBinding());
          addPrimitive(Short.class, Short.TYPE, new ShortBinding());
          addPrimitive(Integer.class, Integer.TYPE, new IntegerBinding());
          addPrimitive(Long.class, Long.TYPE, new LongBinding());
          addPrimitive(Float.class, Float.TYPE, new FloatBinding());
          addPrimitive(Double.class, Double.TYPE, new DoubleBinding());
     private static void addPrimitive(Class<?> cls1, Class<?> cls2,
               TupleBinding<?> binding) {
          primitives.put(cls1, binding);
          primitives.put(cls2, binding);
     @SuppressWarnings("unchecked")
     public PrimitiveStoredMap(Database database) {
          ParameterizedType type = (ParameterizedType) getClass().getGenericSuperclass();
          Type[] typeArgs = type.getActualTypeArguments();
          Class<K> keyClass = (Class<K>) typeArgs[0];
          Class<V> valueClass = (Class<V>) typeArgs[1];
          TupleBinding<K> keyBinding = (TupleBinding<K>) primitives.get(keyClass);
          TupleBinding<V> valueBinding = (TupleBinding<V>) primitives.get(valueClass);
          if (keyBinding == null || valueBinding == null) {
               throw new IllegalArgumentException(
                         "only string or primitive bindings "
                                   + "are supported for keys and values "
                                   + "you are using : (" + keyClass.getSimpleName()
                                   + "," + valueClass.getSimpleName() + ")");
          this.map = makeMap(database, keyBinding, valueBinding, true);
     protected StoredMap<K, V> makeMap(Database database,
               EntryBinding<K> keyBinding, EntryBinding<V> valueBinding,
               boolean isWriteable) {
          return new StoredMap<K, V>(//
                    database, keyBinding, valueBinding, isWriteable);
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;
public class ConcurrentMapAdapter<K, V> implements ConcurrentMap<K, V> {
     protected ConcurrentMap<K, V> map;
     @Override
     public int size() {
          return map.size();
     @Override
     public boolean isEmpty() {
          return map.isEmpty();
     @Override
     public boolean containsKey(Object key) {
          return map.containsKey(key);
     @Override
     public boolean containsValue(Object value) {
          return map.containsValue(value);
     @Override
     public V get(Object key) {
          return map.get(key);
     @Override
     public V put(K key, V value) {
          return map.put(key, value);
     @Override
     public V remove(Object key) {
          return map.remove(key);
     @Override
     public void putAll(Map<? extends K, ? extends V> m) {
          map.putAll(m);
     @Override
     public void clear() {
          map.clear();
     @Override
     public Set<K> keySet() {
          return map.keySet();
     @Override
     public Collection<V> values() {
          return map.values();
     @Override
     public Set<java.util.Map.Entry<K, V>> entrySet() {
          return map.entrySet();
     @Override
     public V putIfAbsent(K key, V value) {
          return map.putIfAbsent(key, value);
     @Override
     public boolean remove(Object key, Object value) {
          return map.remove(key, value);
     @Override
     public boolean replace(K key, V oldValue, V newValue) {
          return map.replace(key, oldValue, newValue);
     @Override
     public V replace(K key, V value) {
          return map.replace(key, value);
Edited by: user8971924 on Mar 26, 2011 7:52 PM

great! thanks for considering this;
still more ideas: add the "byte array primitive":
public class ByteArray {
     private final byte[] array;
     public ByteArray(final byte[] array) {
          this.array = array == null ? new byte[0] : array;
     public byte[] getArray() {
          return array;
     @Override
     public boolean equals(Object other) {
          if (other instanceof ByteArray) {
               ByteArray that = (ByteArray) other;
               return Arrays.equals(this.array, that.array);
          return false;
     private int hashCode;
     @Override
     public int hashCode() {
          if (hashCode == 0) {
               hashCode = Arrays.hashCode(array);
          return hashCode;
     @Override
     public String toString() {
          return Arrays.toString(array);
public class ByteArrayBinding extends TupleBinding<ByteArray> {
     @Override
     public ByteArray entryToObject(TupleInput ti) {
          return new ByteArray(ti.getBufferBytes().clone());
     @Override
     public void objectToEntry(ByteArray array, TupleOutput to) {
          to.write(array.getArray());
public abstract class PrimitiveStoredMap<K, V> extends
          ConcurrentMapAdapter<K, V> {
     private static final Map<Class<?>, TupleBinding<?>> primitives = new HashMap<Class<?>, TupleBinding<?>>();
     static {
          // je
          addPrimitive(String.class, String.class, new StringBinding());
          addPrimitive(Character.class, Character.TYPE, new CharacterBinding());
          addPrimitive(Boolean.class, Boolean.TYPE, new BooleanBinding());
          addPrimitive(Byte.class, Byte.TYPE, new ByteBinding());
          addPrimitive(Short.class, Short.TYPE, new ShortBinding());
          addPrimitive(Integer.class, Integer.TYPE, new IntegerBinding());
          addPrimitive(Long.class, Long.TYPE, new LongBinding());
          addPrimitive(Float.class, Float.TYPE, new FloatBinding());
          addPrimitive(Double.class, Double.TYPE, new DoubleBinding());
          // custom
          addPrimitive(ByteArray.class, ByteArray.class, new ByteArrayBinding());
}

Feature request - use same colors for joined tables

I brought two datasets into Power Map. Both have a shared segmentation dimension (joined in Power Pivot). Power Map doesn't pay attention to the fact that the tables are joined and does not use the same series colors. I have to manually adjust all
the colors (~2 dozen segments) which is painful and should not be necessary. Power Map should be smart and automatically use the same colors.

You are more likely to
produce some effect if you post your request here:
https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform

Request UEFI GOP VBIOS for GTX670 graphics card

I need the GOP UEFI VBIOS so I can use secure boot with windows 8.1. Here's a TechPowerUP GPU-Z summary:
Card info:
N670 PE 2GD5/OC 912-V284-019
S/N: 602-V284-030B1210204272
Current VBIOS = 80.04.31.00.46 (P2004-0005)
Unfortunately, I cannot link the current BIOS as I am not allowed.

here it is

Feature request: better graphic acceleration in OSX guests under VMware Fusion

It is currently not possible to run standard Mac applications (such as iMovie, iDVD) on an OS X guest under VMware Fusion, due to the lack of graphic accleration.
Therefore I would like to post the following feature request:
please add support for Quartz Extreme / Core Image graphic acceleration in OS X guests under VMware Fusion.
Thank you!
magoo2

It is currently not possible to run standard Mac applications (such as iMovie, iDVD) on an OS X guest under VMware Fusion, due to the lack of graphic accleration.
Therefore I would like to post the following feature request:
please add support for Quartz Extreme / Core Image graphic acceleration in OS X guests under VMware Fusion.
Thank you!
magoo2

Feature Request: Disable Checkbox for Palette Fade in CS3

Dear Adobe Team,
please be so kind and give us a switch to disable the - Palette Fade Feature - of the CS3 Applications.
It just distracts (some of us) from work. - Fast Copy/Paste actions are a bit harder this way, even though it's fast on new machines. (Which is obvious because
Even though some of us bought new fast computers to have programmes INSTANTLY available.
I'm looking so much forward to your response
Florian Schommertz
Dear Forum - please make this a petition to have this checkbox available, and DO NOT start another, RAM/G4/G5 discussion about the speed of the palette fading.
Just, sign with your Name, and/or, Account ID here and help us all get rid of the GUI-Desaster.
Thanx!

This is not the feature request forum nor the feature request form. If you really want to make this a feature request do a search for feature request and submit an actual feature request/bug report form to Adobe. All you are doing here is feature requesting to other users that can do nothing about the issue.

Unimplemented feature request marked as released

SQL Developer Exchange feature request for extended code folding capabilities is marked as "In release 1.1". I can find no indication that the feature as originally described - or the many worthwhile additions from the comments - exist in 1.1 or 1.2. (However, it would Feature Request "Navigator: Distinct icons for package objects".)
Message was edited by:
fac586
Fixed broken link

I have changed the setting to reviewed. The reason it was listed as in 1.1, is that there was improved code folding in 1.1
As mentioned in other threads, we are working on improving the SQL and PL/SQL parsing for a future release and once that's in place, the code insight, folding etc will be improved.
I can't comment on the other link you have as it does not appear to be working.
Sue

Feature request - Akima spline curves for vector graphics

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