Re: Another "How to do this in a Revlet?" thread

[bar...@libero.it]

Richard Gaskin wrote:
>Anyone else here see this behavior?

Yes, it happens to 
me too but if I cut and paste the url into the Location Bar it doesn't go 
anywhere!

regards 
Barry Barber
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Re: Another "How to do this in a Revlet?" thread

[Alejandro Tejada]

Richard Gaskin wrote:

>  I figured they were vector, but the show/hide part I hadn't thought of. 

> Makes good sense, though, keeps the number of things
> on screen to a minimum.
> Nice idea, rather like the famous ZoomQuilt:
> 

Yes, Zoomquilt is a really nice example
of bitmaps smooth resizing inside
Flash player.

If anyone wants to try something like Zoomquilt
inside Rev, get all the images:
http://public.hbk-bs.de/~baumgarn/zoom/steps/

and read some explanation about the code:
http://www2.ambientdesign.com/forums/archive/index.php/t-1482.html

alejandro


  
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Re: Another "How to do this in a Revlet?" thread

[stephen barncard]

I  have seen instances where the user ISP somehow can hihack some html
errors and take one's browser to another site. This happened recently with
my Comcast account. They recently patched my account to a 'Network Helper'
panel without asking or notifying, and every 'page not found' error sent me
to a 'friendly' comcast erro page instead of my own (including ON-Rev's
helpful error messages).  I had to 'sign in' to their stupid website, do
some research, and finally found a control panel to turn off.

Never underestimate the reach of your ISP.  I hate Comcast, but nobody else
offers the kind of speed they do in my part of town for now.   We'll see all
kinds of dirty tricks as the cable companies want you to have access to the
net, but get not all your TV through the net. Expect content filtering in
the future as the web becomes the new TV. These Comcast jokers want me to
subscribe to "Basic Cable" for only $5 more/month, yeah right, and a two
year contract. No thanks to TV and the contract.

Waiting for faster DSL or Fiber
-
Stephen Barncard
San Francisco
http://houseofcubes.com/disco.irev


2009/10/31 Richard Gaskin 

> Jim Ault wrote:
>
>  On Oct 30, 2009, at 8:10 PM, Richard Gaskin wrote:
>>
>>  http://www.capellan2000.000space.com/graphics_transformations_01.zip

>>>
>>> I wish I go see it, but when I click it I wind up here:
>>> 
>>>
>>
>> My browser (Firefox/3.5.3 GTB6 in OSX 10.5 )  initiates and  successfully
>> downloads the file  'graphics_transformations_01.zip'
>>
>
> Ultra-weird:  in Safari it downloads the file correctly, but in Firefox
> 3.5.3 on OS X 10.5.8 it went to the URL I noted.
>
> So I updated FF to v3.5.4, and after doing so it warned me that I needed to
> also update Flash Player, so I did.  Then I updated the five FF extensions I
> normally run with, then disabled all of them, restarted FF, and it still
> brings me to that other URL.
>
> If it were forwarding me to some spam site I might suspect a virus, but the
> site it goes to is rather innocuous, so I'm not so sure.  Also, the behavior
> persists even after updating FF and disabling extensions, so I'm disinclined
> to think it's a modified FF or FF prefs/settings issue.
>
> Still, since it works in Safari obviously this issue is specific to
> something in my FF setup.  But what?
>
> Anyone else here see this behavior?
>
>
> --
>  Richard Gaskin
>  Fourth World
>  Rev training and consulting: http://www.fourthworld.com
>  Webzine for Rev developers: http://www.revjournal.com
>  revJournal blog: http://revjournal.com/blog.irv
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Re: Another "How to do this in a Revlet?" thread

[Richard Gaskin]

Jim Ault wrote:


On Oct 30, 2009, at 8:10 PM, Richard Gaskin wrote:


http://www.capellan2000.000space.com/graphics_transformations_01.zip


I wish I go see it, but when I click it I wind up here:



My browser (Firefox/3.5.3 GTB6 in OSX 10.5 )  initiates and  
successfully downloads the file  'graphics_transformations_01.zip'


Ultra-weird:  in Safari it downloads the file correctly, but in Firefox 
3.5.3 on OS X 10.5.8 it went to the URL I noted.


So I updated FF to v3.5.4, and after doing so it warned me that I needed 
to also update Flash Player, so I did.  Then I updated the five FF 
extensions I normally run with, then disabled all of them, restarted FF, 
and it still brings me to that other URL.


If it were forwarding me to some spam site I might suspect a virus, but 
the site it goes to is rather innocuous, so I'm not so sure.  Also, the 
behavior persists even after updating FF and disabling extensions, so 
I'm disinclined to think it's a modified FF or FF prefs/settings issue.


Still, since it works in Safari obviously this issue is specific to 
something in my FF setup.  But what?


Anyone else here see this behavior?

--
 Richard Gaskin
 Fourth World
 Rev training and consulting: http://www.fourthworld.com
 Webzine for Rev developers: http://www.revjournal.com
 revJournal blog: http://revjournal.com/blog.irv
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Re: Another "How to do this in a Revlet?" thread

[Jim Ault]

On Oct 30, 2009, at 8:10 PM, Richard Gaskin wrote:


http://www.capellan2000.000space.com/graphics_transformations_01.zip


I wish I go see it, but when I click it I wind up here:

--  
Richard



My browser (Firefox/3.5.3 GTB6 in OSX 10.5 )  initiates and  
successfully downloads the file  'graphics_transformations_01.zip'


The stack shows many of the complex operations for transforming  
graphics.
The button scripts are very well written to show the meaning of  
variables and the operations used.


There is a metacard version and a rev version and both are dated 2003.
Very cool demonstration.

Thanks for showing this, Alejandro.
I am sure a friend of mine will love seeing this and do some fancy  
scripting.


Jim Ault
Las Vegas

On Oct 30, 2009, at 8:10 PM, Richard Gaskin wrote:


Alejandro wrote:


Actually, these are plain and simple vector graphics, organized
like concentric rings that you could show and hide, depending
of zoom level.


I figured they were vector, but the show/hide part I hadn't thought  
of.   Makes good sense, though, keeps the number of things on screen  
to a minimum.


Nice idea, rather like the famous ZoomQuilt:



This zoom slider is actually scaling all graphics from
the center. Adobe Flash do not scale all vector graphics
at the same time. This is an illusion. But a really fast one.
I had published an stack that uses matrices to scale vector
graphics. Scaling the points of vector graphics in a loop or
driven by a scale slider should be no problem. ;-)
http://www.capellan2000.000space.com/graphics_transformations_01.zip


I wish I go see it, but when I click it I wind up here:

--
Richard

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Re: Another "How to do this in a Revlet?" thread

[Richard Gaskin]

Alejandro wrote:


Actually, these are plain and simple vector graphics, organized
like concentric rings that you could show and hide, depending
of zoom level.


I figured they were vector, but the show/hide part I hadn't thought of. 
  Makes good sense, though, keeps the number of things on screen to a 
minimum.


Nice idea, rather like the famous ZoomQuilt:



This zoom slider is actually scaling all graphics from
the center. Adobe Flash do not scale all vector graphics
at the same time. This is an illusion. But a really fast one.
I had published an stack that uses matrices to scale vector
graphics. Scaling the points of vector graphics in a loop or
driven by a scale slider should be no problem. ;-)
http://www.capellan2000.000space.com/graphics_transformations_01.zip


I wish I go see it, but when I click it I wind up here:


:\

--
 Richard Gaskin
 Fourth World Media Corporation
 Developer of WebMerge: Publish any database on any Web site
 ___
 ambassa...@fourthworld.com   http://www.FourthWorld.com
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Re: Another "How to do this in a Revlet?" thread

[capellan]

Hi Richard,

Actually, these are plain and simple vector graphics, organized
like concentric rings that you could show and hide, depending
of zoom level.

This zoom slider is actually scaling all graphics from
the center. Adobe Flash do not scale all vector graphics
at the same time. This is an illusion. But a really fast one.
I had published an stack that uses matrices to scale vector
graphics. Scaling the points of vector graphics in a loop or
driven by a scale slider should be no problem. ;-)
http://www.capellan2000.000space.com/graphics_transformations_01.zip

Scott Rossi published an stack that shows a rotating and scaling
vector graphic:
http://tactilemedia.com/site_files/downloads/tutti3d.rev.zip

About the seemingly infinite zoom, you could simulate this
showing a new group of vector graphics when the outer container
group of graphics reach certain zoom level.

Did you notice that small graphics in the center, only show
distinguishable details after they reach certain size? You could
use this exact scale point to hide the outer vector container group
and show a new vector graphics group that you could keep scaling.

When the container group is zoomed out of the stack
area, hide this group and the scale slider controls the
resize of the recently visible group.

In this way, you are zooming only one group of graphics,
not all the groups at the same time. And when the group
reach a certain scale or zoom, you show a new group
and hide previous zoomed group. Keep doing this ad infinitum.
Like showing and hiding concentric rings.

Alejandro
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Re: Another "How to do this in a Revlet?" thread

[BNig]

When doing a repeated resize of an image you might want to consider bugzilla
Report #8302.
It describes a funny problem in Revlets and stacks that leaks memory when an
image is repeatedly resized AND the image was from a JPEG image. No leak if
image was a png or if image is still referenced via filename (referenced
JPEGs dont leak)
regards
Bernd


Richard Gaskin wrote:
> 
> Jacque wrote:
> 
>> Richard Gaskin wrote:
>>> This is not only cool, but this type of zooming can be instructionally 
>>> useful:
>>> 
>>> 
>>> 
>>> Anyone here pull off something like that in Rev?
>> 
>> I haven't, but I don't think it would be hard. It's just a 
>> high-resolution image that is continually scaled. I'd put a scrollbar 
>> under the image, scripted to reset the scale of the image object, and 
>> that should do it. If you want smooth scaling, you'd need to continually 
>> rescale in a loop, in very small increments, until the target scale is 
>> reached.
> 
> I'm attracted to the idea that it could be easy, but I think in practice 
> it may be quite harder than it looks.
> 
> For starters, it loads really fast so it's gotta be vector objects 
> rather than a large scaled bitmap image.
> 
> And given its size when you're zoomed in all the way, it would almost 
> certainly exceed Rev's 4095-pixel limit on image size (do I have that 
> limit correct?).
> 
> I think it would require some nifty scaling algorithms, and with Flash 
> doing this almost automatically and with us needing to do this in 
> script, I'm having a hard time figuring out how one could do that as 
> gracefully.
> 
> --
>   Richard Gaskin
> 
> 

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Re: Another "How to do this in a Revlet?" thread

[Scott Rossi]

Recently, Richard Gaskin wrote:

>>> This is not only cool, but this type of zooming can be instructionally
>>> useful:
>>> 
>>> 
>>> 
>>> Anyone here pull off something like that in Rev?

Ian's right: it's separate vector graphics in Flash.

The thing that makes this ultra easy in Flash and ultra challenging in Rev
is you can't easily scale a group (why? it's almost 2010 -- we should have
flying cars and scaling groups in Rev should be a given by now).

If you're going to try it in Rev, there's no need to use images -- graphics
should work -- and you *might* get better performance using graphics, but
then again, handling of numerous objects of any type at large size often
slows down Rev, so images may be the way to go.

Regards,

Scott Rossi
Creative Director
Tactile Media, Multimedia & Design



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Re: Another "How to do this in a Revlet?" thread

[Devin Asay]

On Oct 30, 2009, at 11:01 AM, Richard Gaskin wrote:


Jacque wrote:


Richard Gaskin wrote:
This is not only cool, but this type of zooming can be  
instructionally

useful:



Anyone here pull off something like that in Rev?


I haven't, but I don't think it would be hard. It's just a
high-resolution image that is continually scaled. I'd put a scrollbar
under the image, scripted to reset the scale of the image object, and
that should do it. If you want smooth scaling, you'd need to  
continually
rescale in a loop, in very small increments, until the target scale  
is

reached.


I'm attracted to the idea that it could be easy, but I think in  
practice

it may be quite harder than it looks.


Pretty easy to do as a simple, medium-res example (but don't set the  
image's resizeQuality to "Best", or it gets really slow):


Try my crude test from the message box:

go stack url "http://asay.byu.edu/testZoom.rev";

Can anyone improve on this? (A low standard, I know. :) )


For starters, it loads really fast so it's gotta be vector objects
rather than a large scaled bitmap image.

And given its size when you're zoomed in all the way, it would almost
certainly exceed Rev's 4095-pixel limit on image size (do I have that
limit correct?).

I think it would require some nifty scaling algorithms, and with Flash
doing this almost automatically and with us needing to do this in
script, I'm having a hard time figuring out how one could do that as
gracefully.


What about taking lots of snapshots of the image at different scales  
and making it into a movie, then just using a slide to scrub through  
the movie? Maybe that's cheating, but you work with what you've got.


Devin


Devin Asay
Humanities Technology and Research Support Center
Brigham Young University

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Re: Another "How to do this in a Revlet?" thread

[Ian Wood]

On 30 Oct 2009, at 16:33, J. Landman Gay wrote:

I haven't, but I don't think it would be hard. It's just a high- 
resolution image that is continually scaled.


No it isn't - it's all vector graphics, because an image of those  
pixel dimensions probably wouldn't even load in the browser. The JPEG  
format only goes up to 30,000px in either dimension, and this would be  
around 1,000,000,000px...


Something similar would be possible in Rev using either a series of  
images for different zoom levels, or an image file for each object  
plus a bunch of fancy scaling handlers, but the file size would be  
correspondingly larger than the example given.


Ian
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Re: Another "How to do this in a Revlet?" thread

[Richard Gaskin]

Jacque wrote:


Richard Gaskin wrote:
This is not only cool, but this type of zooming can be instructionally 
useful:




Anyone here pull off something like that in Rev?


I haven't, but I don't think it would be hard. It's just a 
high-resolution image that is continually scaled. I'd put a scrollbar 
under the image, scripted to reset the scale of the image object, and 
that should do it. If you want smooth scaling, you'd need to continually 
rescale in a loop, in very small increments, until the target scale is 
reached.


I'm attracted to the idea that it could be easy, but I think in practice 
it may be quite harder than it looks.


For starters, it loads really fast so it's gotta be vector objects 
rather than a large scaled bitmap image.


And given its size when you're zoomed in all the way, it would almost 
certainly exceed Rev's 4095-pixel limit on image size (do I have that 
limit correct?).


I think it would require some nifty scaling algorithms, and with Flash 
doing this almost automatically and with us needing to do this in 
script, I'm having a hard time figuring out how one could do that as 
gracefully.


--
 Richard Gaskin
 Fourth World
 Rev training and consulting: http://www.fourthworld.com
 Webzine for Rev developers: http://www.revjournal.com
 revJournal blog: http://revjournal.com/blog.irv
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Re: Another "How to do this in a Revlet?" thread

[J. Landman Gay]

Richard Gaskin wrote:
This is not only cool, but this type of zooming can be instructionally 
useful:




Anyone here pull off something like that in Rev?


I haven't, but I don't think it would be hard. It's just a 
high-resolution image that is continually scaled. I'd put a scrollbar 
under the image, scripted to reset the scale of the image object, and 
that should do it. If you want smooth scaling, you'd need to continually 
rescale in a loop, in very small increments, until the target scale is 
reached.


Of course, I may be all mouth and no follow-through. I didn't actually 
try it. ;)


--
Jacqueline Landman Gay | jac...@hyperactivesw.com
HyperActive Software   | http://www.hyperactivesw.com
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Another "How to do this in a Revlet?" thread

[Richard Gaskin]

This is not only cool, but this type of zooming can be instructionally 
useful:




Anyone here pull off something like that in Rev?

--
 Richard Gaskin
 Fourth World
 Rev training and consulting: http://www.fourthworld.com
 Webzine for Rev developers: http://www.revjournal.com
 revJournal blog: http://revjournal.com/blog.irv
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