Re: Animating handwriting
Ok I will check in Photoshop and create the animation there. Thanks all for the reply G On Jun 25, 2011, at 4:47 AM, Scott Anguish wrote: I don’t think it’s the amount of page space, rather the quantity of the alphabet. If this is just for an effect for an about screen or soemthing, I’d say your photoshop idea is the way to go. Otherwise, I’d suggest the drawing custom app, but even then you’re going to have issues with making sure that as you put in the ‘lines’ to follow for the pen that the direction of the animated fill is right (likely at 90 degrees to the pen position or previous direction). I only know this because it’s an issue with embroidery software. the alternative is to draw points back and forth on each side of the each letter for the fill. major tedium. All this sounds like a lot of work without knowing what the reason is. On Jun 24, 2011, at 9:26 AM, Ken Tozier wrote: If you're writing a whole page of text, creating all the frames by hand would get real old real quick. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
On 23.06.2011, at 18:45, Gustavo Pizano wrote: Yes kinda. kinda? Well, if you have a font, you simply don't have the information. So all you can do is transition it on screen with a wipe effect in direction toRight. CIFilter and CATransition (not sure if the latter exists on iOS) would be the thing to go for here. This works quite well when done fairly quickly, line-by-line and for small text. The larger the font size, the less believable it looks. But usually it's enough. OTOH if you can have someone actually write the text for you (or at least each individual letter that you need) you could record the mouse location and then replay them. Come to think of it, you could probably manually click at even intervals on the stroke of every letter in characters written in the font you're using, record the click coordinates, and then draw bezier paths repeatedly, each time to one more point than before. Then draw the corresponding animation instead of each letter in the font. You would have to layout the text manually, but for button titles and other one-line (or hard-wrapped) text that usually works just fine. -- Uli Kusterer Sole Janitor http://www.the-void-software.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
On Jun 24, 2011, at 4:05 AM, Uli Kusterer wrote: Come to think of it, you could probably manually click at even intervals on the stroke of every letter in characters written in the font you're using, record the click coordinates, and then draw bezier paths repeatedly, each time to one more point than before. Then draw the corresponding animation instead of each letter in the font. You would have to layout the text manually, but for button titles and other one-line (or hard-wrapped) text that usually works just fine. If he wants to use an actual typeface, it might be better to use the click recordings of the character skeletons as the path of an eraser moving over a layer that obscures the type underneath. Basically, he'd need a type layer and a second overlay layer painted right on top of it. He'd have to experiment with the various compositing constants, but if he animated a circular dot, about the same size as the typeface strokes, erasing as it goes, then the real handwriting typeface would be revealed as it went along___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Hello all. So it will be good idea then to create a Mac app that will record the imput from the mouse/pen in a character basis, then record each character and then pass a string to a method, divided the string in characters and draw each character from the map I already did before... maybe yes, maybe no? what do you think? G. On Jun 24, 2011, at 2:03 PM, Ken Tozier wrote: On Jun 24, 2011, at 4:05 AM, Uli Kusterer wrote: Come to think of it, you could probably manually click at even intervals on the stroke of every letter in characters written in the font you're using, record the click coordinates, and then draw bezier paths repeatedly, each time to one more point than before. Then draw the corresponding animation instead of each letter in the font. You would have to layout the text manually, but for button titles and other one-line (or hard-wrapped) text that usually works just fine. If he wants to use an actual typeface, it might be better to use the click recordings of the character skeletons as the path of an eraser moving over a layer that obscures the type underneath. Basically, he'd need a type layer and a second overlay layer painted right on top of it. He'd have to experiment with the various compositing constants, but if he animated a circular dot, about the same size as the typeface strokes, erasing as it goes, then the real handwriting typeface would be revealed as it went along___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/gustavxcodepicora%40gmail.com This email sent to gustavxcodepic...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
On Jun 24, 2011, at 8:41 AM, Gustavo Pizano wrote: Hello all. So it will be good idea then to create a Mac app that will record the imput from the mouse/pen in a character basis, then record each character and then pass a string to a method, divided the string in characters and draw each character from the map I already did before... maybe yes, maybe no? what do you think? G. Depending on how much text you're trying to animate, it might be easier to just make the individual frames of the animation, by hand, in a graphics program and just play them back. If it's just a few words on a title page, you could use the erase as you go method I described in my last reply. If you have Photoshop, create an image with two layers. type the text you want on one layer and fill a second layer with white. Use the eraser tool, erase a little bit of the overlay, save a frame, erase a little more save another frame, etc... It would save you a lot of work on writing an app just to record the handwriting strokes and another to play them back... If you're writing a whole page of text, creating all the frames by hand would get real old real quick. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
I don’t think it’s the amount of page space, rather the quantity of the alphabet. If this is just for an effect for an about screen or soemthing, I’d say your photoshop idea is the way to go. Otherwise, I’d suggest the drawing custom app, but even then you’re going to have issues with making sure that as you put in the ‘lines’ to follow for the pen that the direction of the animated fill is right (likely at 90 degrees to the pen position or previous direction). I only know this because it’s an issue with embroidery software. the alternative is to draw points back and forth on each side of the each letter for the fill. major tedium. All this sounds like a lot of work without knowing what the reason is. On Jun 24, 2011, at 9:26 AM, Ken Tozier wrote: If you're writing a whole page of text, creating all the frames by hand would get real old real quick. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
If you're writing with the mouse the following might help. It isn't done,
still needs some sort of check in the drawRect method to know when you've drawn
all the segments and you;ll need to adjust x/y values to the view you're
drawing in, but it will get you started.
- (void) mouseDown:(NSEvent *) inEvent
{
// allocate a mutable data to store event points and times
dragPoints = [[NSMutableData alloc] init];
// save fetch time and location of click and store in dragPoints
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint clickPoint = [inEvent locationInWindow];
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseDragged:(NSEvent *) inEvent
{
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint dragPoint = [inEvent locationInWindow];
// write interval and point to dragPoints mutable data object
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseUp:(NSEvent *) inEvent
{
// save the recording, either in memory or to a file
[dragPoints writeToFile: @/path/to/some/file.bin];
[dragPoints release];
}
// In your draw method, you could fetch a timestamp/NSPoint pair from the
recording like so
- (void) drawRect:(NSRect) inRect
{
CGContextRefcontext = [[NSGraphicsContext
currentContext] graphicsPort];
// some instance variable indicating where you are in the recording
int frameOffset =
currentIncrement * (sizeof(NSTimeInterval) + sizeof(NSPoint));
NSTimeInterval time=
*(NSTimeInterval*)[dragPoints bytes] + frameOffset;
NSPoint point =
*(NSPoint*)[dragPoints bytes] + frameOffset + sizeof(NSTimeInterval);
// draw line
CGContextAddLineToPoint(context, point.x, point.y);
// create a new NSTimer with the delay from time variable
[NSTimer scheduledTimerWithTimeInterval: time
target: self
selector: @selector(dearRect:)
userInfo: nil
repeats: NO];
// increment placeholder
currentIncrement++;
}
On Jun 23, 2011, at 5:21 AM, Gustavo Adolfo Pizano wrote:
Hello all.
Im wondering if animating handwriting is somehow possible to do, I
have been looking but I find only how to do it in flash.
Can somebody give me some headlights in the right direction so I can
start digging into?
Thanks a lot.
Gustavo
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/kentozier%40comcast.net
This email sent to kentoz...@comcast.net
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Re: Animating handwriting
Helo Ken.
Thanks for answer,
I meant, I have some title string already, and I wish to be able to
animate as if its being written at the moment, also I forgot to
mention that this is for iOS.
Once again thanks for the reply.
I will still check your code and see how maybe I can apply what I
need. Maybe, and for sure I need to get the points of the path to be
done first somehow and then animate the creating of the path.
i dunno.
G.
On Thu, Jun 23, 2011 at 12:34 PM, Ken Tozier kentoz...@comcast.net wrote:
If you're writing with the mouse the following might help. It isn't done,
still needs some sort of check in the drawRect method to know when you've
drawn all the segments and you;ll need to adjust x/y values to the view
you're drawing in, but it will get you started.
- (void) mouseDown:(NSEvent *) inEvent
{
// allocate a mutable data to store event points and times
dragPoints = [[NSMutableData alloc] init];
// save fetch time and location of click and store in dragPoints
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint clickPoint = [inEvent locationInWindow];
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseDragged:(NSEvent *) inEvent
{
NSTimeInterval timestamp = [inEvent timestamp];
NSPoint dragPoint = [inEvent locationInWindow];
// write interval and point to dragPoints mutable data object
[dragPoints appendBytes: timestamp length: sizeof(NSTimeInterval)];
[dragPoints appendBytes: dragPoint length: sizeof(NSPoint)];
}
- (void) mouseUp:(NSEvent *) inEvent
{
// save the recording, either in memory or to a file
[dragPoints writeToFile: @/path/to/some/file.bin];
[dragPoints release];
}
// In your draw method, you could fetch a timestamp/NSPoint pair from the
recording like so
- (void) drawRect:(NSRect) inRect
{
CGContextRef context = [[NSGraphicsContext
currentContext] graphicsPort];
// some instance variable indicating where you are in the recording
int frameOffset =
currentIncrement * (sizeof(NSTimeInterval) + sizeof(NSPoint));
NSTimeInterval time =
*(NSTimeInterval*)[dragPoints bytes] + frameOffset;
NSPoint point =
*(NSPoint*)[dragPoints bytes] + frameOffset + sizeof(NSTimeInterval);
// draw line
CGContextAddLineToPoint(context, point.x, point.y);
// create a new NSTimer with the delay from time variable
[NSTimer scheduledTimerWithTimeInterval: time
target: self
selector: @selector(dearRect:)
userInfo: nil
repeats: NO];
// increment placeholder
currentIncrement++;
}
On Jun 23, 2011, at 5:21 AM, Gustavo Adolfo Pizano wrote:
Hello all.
Im wondering if animating handwriting is somehow possible to do, I
have been looking but I find only how to do it in flash.
Can somebody give me some headlights in the right direction so I can
start digging into?
Thanks a lot.
Gustavo
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/kentozier%40comcast.net
This email sent to kentoz...@comcast.net
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/gustavxcodepicora%40gmail.com
This email sent to gustavxcodepic...@gmail.com
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Re: Animating handwriting
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFOA2r9aOlrz5+0JdURAj75AJ9caJFWiklpYPCugSc0DkSyn5/ReACggouj F8Ua3YVVIWpGvZ1EDK159FA= =TmNr -END PGP SIGNATURE- ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFOA2r9aOlrz5+0JdURAj75AJ9caJFWiklpYPCugSc0DkSyn5/ReACggouj F8Ua3YVVIWpGvZ1EDK159FA= =TmNr -END PGP SIGNATURE- ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
Is this a correct interpretation of what you're trying to do? You have a title string that will be drawn in a handwriting font. You wish to reveal each of the letter strokes over time as if someone were actually writing the title on a piece of paper. On Jun 23, 2011, at 9:45 AM, Gustavo Pizano wrote: Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Animating handwriting
YES. :D On Jun 23, 2011, at 7:10 PM, Steve Christensen wrote: Is this a correct interpretation of what you're trying to do? You have a title string that will be drawn in a handwriting font. You wish to reveal each of the letter strokes over time as if someone were actually writing the title on a piece of paper. On Jun 23, 2011, at 9:45 AM, Gustavo Pizano wrote: Hello. Yes kinda. G. On Jun 23, 2011, at 6:34 PM, Conrad Shultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 6/23/11 6:50 AM, Gustavo Adolfo Pizano wrote: Helo Ken. Thanks for answer, I meant, I have some title string already, and I wish to be able to animate as if its being written at the moment, also I forgot to mention that this is for iOS. Sorry, do you mean that you have an NSString and a handwriting font, and you wish to animate the rendering of the string in that font? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
