Why is the "capturing" phase so named?

I believe I've got a reasonable understanding of the Flex
event flow but I don't understand why the capturing phase is so
named. Perhaps it is so named because during the capturing phase an
event can be stopped--captured--before it reaches its target, but
I'd love to hear the origin of the term from somebody who
knows.

Well, there's a bubbling phase, too. I suppose it's so named
because bubbling events rise like bubbles from their targets back
to the the Application. But the reason for using the term
"capturing" still eludes me.

Similar Messages

  • Question why In the final phase of installing OSX it will not recognize my password

    Why in the final phase of installing OSX Maverick it will not recognize my password?

    Administrator account password.

  • Capture phase never happens for timer event

    I am trying to comprehend event flow, event bubbling,
    listeners, etc. I created a test class called TimerExample to
    generate some events. It kinda works, but the eventListeners
    listening for the event during the capture phase are never
    triggered. Does this mean timer events don't bubble? Is there some
    good rule of thumb for which events bubble and which do not? If
    there's no rule of thumb, is there some list or reference in the
    on-line flash docs?

    Looking at Adobe's fl.controls.BaseButton class shows the
    pattern you need. Find the file by searching for a file called
    "BaseButton.as" on your computer, and if you find more than one,
    it's the one inside the "controls" folder inside the "fl" folder.
    It shows a good pattern to use when you want a Timer event to
    bubble. In the BaseButton class, repeating BUTTON_DOWN events are
    broadcast when anything that extends BaseButton is pressed and held
    by the user.
    Basic flow:
    1. The class listens for all MouseEvent events with the same
    handler: mouseEventHandler()
    2. If mouseEventHandler(event:MouseEvent) gets an event of
    type MouseEvent.MOUSE_DOWN, it calls startPress.
    3. The startPress() method starts the pressTimer instance of
    Timer
    4. The Timer is calling buttonDown() every millisecond.
    (really?)
    5. The buttonDown() method dispatches the BUTTON_DOWN
    component event with bubbling set to true.
    Hope this helps.
    -Mike

  • Why does Image Capture stop recognizing Epson scanner after scanning several images? I have to stop and start the scanner in order for Image Capture to recognize it again.

    Why does Image Capture stop recognizing Epson scanner after scanning several images? I have to stop and start the scanner in order for Image Capture to recognize it again.

    Karen ...
    Might be corrupted preferences (.plist)
    Open the Finder. From the Finder menu bar click Go > Go to Folder
    Type or copy paste the following:
    ~/Library/Preferences/com.apple.image_Capture.plist
    Click Go then move the com.apple.image_Capture.plist file to the Trash.
    Restart your Mac and your scanner and try scanning an image.

  • Why is the image in my capture window of Premiere Pro 2 is too large.

    The image in my capture window of Premiere Pro 2 is too large, however the capture is correct on the time line for editing.
    Why is it too large? and how do I correct it?
    Thank you for taking the time to read this e-mail and for answering my question.
    Yours truly,
    Thom Elliott
    Photographer

    Also, for future reference, PPro2 has a different forum http://forums.adobe.com/community/premiere/premierepro_previous?view=all
    For this discussion, what are you editing?
    Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
    What is a CODEC... a Primer http://forums.adobe.com/thread/546811
    What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
    Report back with the codec details of your file, use the programs below... A screen shot works well to SHOW people what you are doing
    http://forums.adobe.com/thread/592070?tstart=30
    For PC http://mediainfo.sourceforge.net/en or http://www.headbands.com/gspot/
    For Mac http://mediainspector.massanti.com/

  • When using Creative Cloud Library assets created in Illustrator why are the naming conventions I use not being pulled over into the Photoshop layers?

    I create the Creative Cloud Library asset in illustrator and give it a name such as "camera-icon". It shows up in my Creative Cloud Library pane in Photoshop as "camera-icon". When I use that asset in Photoshop the layer is randomly named "a56bd81d-d81f-4815-82b3-5795d410b527". Why is this happening? Shouldn't that layer resolve the name back to "camera-icon" so that when I extract files for use in my application the naming convention is correct. Right now I have to manually rename that layer again. Is this a bug or have I just not done something correctly?

    I think you have pasted the entire crash log. In case of such issues in future, please paste the error screenshot.
    Seems to be a permission issue. Lets follow the below suggestions:
    Solution 1: Rename the following folders on your machine:
    '/Library/ColorSync/Profiles/Profiles'
    '/Library/ColorSync/Profiles/Recommended'
    Solution 2: Rename the following files:
    '/Library/Application Support/Adobe/caps/Media_db.db'
    '/Library/Application Support/Adobe/caps/pdb.db'
    Make sure you dont touch caps.db under the same folder. Now run the installer again. Let me know if you need more help.
    Solution 3:
    Please Run following commands on terminal on the machine (this will remove the corrupt fonts and should allow you to run the installer successfully) -
    sudo mv "/Library/Fonts/ACaslonPro-Bold.otf" /tmp/
    sudo mv "/Library/Application Support/Adobe/SavedFonts/current/AdobeArabic-Bold.otf" /tmp/
    sudo mv "/Library/Application Support/Adobe/HelpCfg/de_DE/goURL_lr_photoshop_de.csv" /tmp/
    Please feel free to respond to this thread if you have any questions about the steps listed within the document.  If you could also respond with the specific error message you receive, It would be appreciated.

  • TS3479 Why is the Grab application not capturing an image?

    I've owned by 27-inch iMac for about a year now (I'm currently running OS 10.7.5.) and, for whatever reason, today my Grab application stopped functioning.
    Specifically, when I open the Grab application and then hit the Shift-Command-A keystrokes to select a portion of the screen to capture, the capture window shows up as a blank white screen and, when saved and viewed, the image is just blank gray.
    Any suggestions on a fix? As I said, things have been working fine up until today.
    In a possibly related issue, today my Snapz Pro X application also stopped functioning. When I open that application, the entire screen goes black, leaving only the small Snapz Pro X windown visible.
    Any help would be gratefully accepted.
    Thanks.

    Thanks elmac. I was able to solve the issue - both issues, actually (Grab and Snapz Pro X) - by going into the library/preferences folder and trashing the com.apple.screensave.plist file and then restarting the computer.

  • MacBook Pro retina 13" (late 2013, Haswell) why is the highest resolution rendered in 3360x2100, which the system obviously can't handle?!

    Hey Apple and Apple users,
    I just recently switched from an MacBook Air (mid 2013) to the new Haswell MacBook Pro retina 13" (late 2013 model).
    The main reason to do so was the better screen and the option to run higher scaled resolutions, as advertised.
    I was willing to trade in the Air's low weight, smaller formfactor and the extra batterylife for the better screen.
    When it comes to resolutions:
    1280x800 is just a joke nowadays, why is the MacBook Pro still based on it? 13" and 1440x900 work quite fine...see MacBook Air.
    1440x900 is okay in everyday life situations, but sometimes you just need "more space" as the third scaling option calls it as well in the display-settings.
    1680x1050 on 13" can sometimes be challenging, but it is really fine if you need to work and have a lot UI elements to deal with (Photoshop etc.)
    So 1680x1050 scaled on the 2560x1600 screen would be my daily driver for work. So I expected a scaling factor of "1.5238..." (2560/1680) will be used most of the time.
    Frankly spoken...I am really disappointed by the 13" retina MacBook Pro and the way OS X Mavericks is handling the scaling.
    It obiously works well and responsive with the 1280x800 non-scaling resolution ("best for retina, scaling factor 2: 1280 --> 2560).
    Is still "okay-snappy" at 1440x900 (scaling factor 1.777...: 1440 --> 2560).
    But it totally breaks down at 1680x1050 (scaling factor 1.523...: 1680 --> 2560).
    I use "Mission Control" all the time and it is stuttering and slow...overall a sluggish and unbearable experience.
    The same goes for Desktop-Switching by swiping the screens or resizing and moving windows and files around.
    So I was wondering why...and then I noticed that when taking a screenshot of my entire screen (CMD + 3) the image size of the screenshot was 3360x2100 and not the expected 2560x1600.
    This means Mavericks is not scaling the UI with the appropriate factor (see above). For retina MacBooks it ist simply rendering one pixel of the classic, non-retina Interface in now 4 pixels (2x2) and sending this straight to the screen, which then "scales" it down to the resolution it is able to display.
    Why is this bothering me? – Because the machine has to do a lot more work to render the higher resolution that can't even be displayed, due to the screens limitations.
    2560x1600 = 4096000 pixels = 100%
    3360x2100 = 7056000 pixels = 172%
    This means the MacBook has to render 72% more information than actually can be displayed on the built-in screen and are just lost.
    Of course this makes the overall UI feel sluggish and idly! Especially with the not that performant Intel Iris IGP and no dedicated graphics card.
    All this extra "rendering" just results in a worse battery life due to the extra work that the graphics card and CPU have to do.
    First, Apple...are you serious about this?
    What can we do about this?
    Is there a way to have this properly scaled?
    Thanks in advance to everyone.

    Okay...I thought deeply about this issue.
    Even looking into ways to maybe fixing this on the software side. But it occured to me that this is to deeply embedded into the system that it won't be possbile to come up with a sufficient third-party solution.taht
    The problem is that there is no intermediate step inbetween "standard DPI" graphics and "HiDPI" (image-resources named "[email protected]").
    But there should be one, to minimize the amount of image information that needs to be processed by the device.
    This effects especially the MacBook Pro retina 13", as it has the less powerful Intel Iris IGP, when performing on the highest scaled resolution (equivalent to 1650x1080).
    As well as the MacBook Pro retina 15" without a dedicated, second Graphics Unit,when performing on the highest possible scaled resolution (equivalent to 1920x1200).
    Those devices don't have enough resources to handle the consequential "HiDPI" resolutions of 3360x2100 for the 13" and 3840x2400 for the 15" model.
    (Comment: 3840x2400 = 9,2MP, which is more than the standard 4K resolution of 3840x2160.
    I analyzed the scaling factors as follows:
    Factor "2" to display 1280x800 on the 13" model and 1440x900 on the 15" model in HiDPI.
    Factor "1.777..." would be required to display 1440x900 on the 2560x1600 screen of the 13" model.
    Factor "1.714..." would be required to display 1650x1080 on the 2880x1800 screen of the 15" model.
    Factor "1.523..." would be required to display 1650x1080 on the 2560x1600 screen of the 13" model.
    Factor "1.5" would be required to display 1920x1200 on the 2800x1800 screen of the 15" model.
    As all the models seem to have no problem with rendering the intermediate scaling step (1440x900 for the 13" and 1680x1050 for the 15" model) at HiDPI, hence with the scaling factor 2. There is no real need to provide the UI-elements.
    But in my opinion there is a strong need for a "MidDPI" ([email protected]) intermediate step for all the UI graphic elements that wis based on the scaling factor 1.5.
    This would result in the following:
    13" MacBook Pro retina with 2560x1600 screen:
    1280x 800 @ 2x = 2560x1600 (no surplus, native screen resolution)
    1440x 900 @ 2x = 2880x1800 (the surplus of 1088000px = ~1MP can still be handled and compansated by the weak Iris IGP)
    1680x1050 @ 2x = 3360x2100 (the surplus of 2960000px = ~3MP is too much for the weak Iris IGP)
    NEW 1680x1050 @ 1.5x = 2520x1575 (with a small border of left=20px, bottom=13, right=20, top=12 pixels, which means ~2,2mm and ~1.3mm around the 1.5x scaled image!).
    15" MacBook Pro retina with 2880x1800 screen:
    1440x900 @ 2x = 2880x1800 (no surplus, native screen resolution)
    1680x1050 @ 2x = 3360x2100 (the surplus of 1872000px = ~2MP can still be handled by the Iris Pro IGP)
    1920x1200 @ 2x = 3840x2400 (the surplus of 4032000px = ~4MP can't be handled sufficiently by the Iris Pro IGP)
    NEW 1920x1200 @ 1.5x = 2800x1800 (nu surplus, native screen resolution, no border needed!)
    The big advantage is that all the graphics have already been remodeled for the HiDPI mode.
    So scaling those "factor 2x" images down to "factor 1.5x" should be comparably easy!
    Example:
    Left: Traditional "standard DPI" icon of "all my files".
    Right: "@2x.png" for the "HiDPI" modes.
    Middle: "@1.5x.png" suggestions for the "MidDPI" mode; easily scaled down from the lovely HiDPI graphics.
    With this simple introduction of the "MidDPI" modes a significant amount of processing power can be saved.
    This not only improves battery life when driving those higher scaled resolutions, but also lets the user access those resources for what really matters: processing power for the primary job that the Mac needs to get done.
    Thanks in advance.

  • Need some help in understanding Capturing Phase .

    Hi ,
    I have some confusion in understanding Capturing Phase .
    I have described a scenario below , please let me know will this be an example for Capturing Phase ??
    Assume i have a Form containing a Button inside a Application Container .
    When the Button is clicked on the Form , if i add a Event Listener using this.addEventListener(MouseEvent.click , callMe)
    Will this be an exmple of an Capturing Phase ??
    Please guide me

    AddEventListner(MouseEvent.CLICK, callMe, true)

  • Why is the image brighter after converting H264 to Apple Prores 422 in Compressor ?

    Hello -
    Very strange situation, keep reading please!
    I am using Compressor to convert H264 1080p footage from a D600, to Apple Prores 422HQ for editing. Normal.
    I am using the default Quicktime Settings named "Apple Prores 422 (HQ)".
    The converted file is a bit brighter than the original... Why is this even possible! I find this a bit problematic because I'm loosing some details in the whites, at a way too early stage for signal alterationt!
    So I tried different other stuff that you will find interesting:
    • changing gamma correction in the codec settings had no effect
    • I can see the change happening already in the Preview window
    • and this is the best one : if I apply a resize, to anything, like 1919 X 1079, or 1280 X 720... then the color change does not occur, even when exported! If I apply a resize to the same size, then the output is brighter again.
    I am proof checking in Quicktime 7 of course, with "FCP compatibility" enabled and disabled.
    I know this is a hot topic and there are many unsolved aberrations like this around this topic, but maybe there is something I don't get ?
    Thanks

    Apple are so thoughful for making us loose the discussion we clicked on after we log in..
    Alex CVideo > I am so happy that you wrote about this
    Yes: this is the exact problem. Very nice screencap, this is exaclty it (even if I said it 2 times now).
    I have a little secret for you:
    I read in another discussion saying that he had this problem too.
    The only time I ever did in the entire Internet.
    here it is :
    this guy re-installed her entire system
    mac os + final cut systems
    and this time it worked.
    Right now I prefer to convert to 1079p than risk this entire operation even it it worked 100% lol
    At least not right now
    but maybe you will be boosted up enough to give it a try
    Good luck to all of us  and thanks again to Apple for these great moments we spend together talking about their wonderful mysteries

  • Why does the new Quicktime NOT play my old MOV files?

    Hi Folks.
    I'm using the lasted updated Yosemite on a 3-year old iMac.
    Back in my early iMac days (3 years ago), I imported my camcorder's AVCHD files
    into iMove or Final Cut Express and converted them to Quicktime MOV files.
    Turns out they were rendered by Apple or Final Cut into MOV files using the
    Apple Intermediate codec.  I had no choice over this.
    Until I upgraded to Yosemite, I was able to preview any of these movies
    very easily in the Finder.  Simply highlight the movie, press the spacebar,
    and it opens, in a real-time, real-size screen, with a simple play-pause button
    in the progress bar at the bottom.  Never had a problem with any previous
    Mac OS.
    Now when I click on the file in the finder, instead of a movie preview, I get a
    big, silent QT "Mov" icon that just sits there looking silly.
    I double click it to open it up in Quicktime, and it attempts to go through this
    lengthy conversion process, taking at least as long as the movie is in minutes,
    then asking me if I want to save this new "converted" version.
    Fortunately, I have an old version of Quicktime 7 on my Mac, and QT 7 opens it
    and plays it no problem.  No "conversion" necessary.  No cumbersome and
    space-hogging needs to create a "cloned" copy, just so the new, lame version
    of Quicktime can play it.
    What's up, Apple?  AIC was YOUR codec that YOUR SOFTWARE chose to
    transcode into.  Now, your new Quicktime does NOT support this codec?
    And your old version does?  And why might THAT be?
    Really, this is so elementary.  This is not rocket science.  Just like JPG images
    not displaying properly in Mac Mail now.  It begs the question "why" ...?
    I mean, for the elementary preview abilities that always made Mac such a
    friendly computer ... *uh* ... where is that?
    And here we go, wasting hours of time, looking for fixes that should not
    have to be "fixed"...
    Did I miss something?  Or did you?

    Aeclay: here's a couple of ideas.  And an answer to your earlier post.
    Basically two options to work with here:
    Store the files as native AVCHD files... OR
    Convert the files to Quicktime
    I keep two archives of my AVCHD recordings, partly for backup, and partly for Sony's ability to archive nicely in it's own native format on it's PC-friendly utility called "PMB".  (came wtih both my NEX and ALPHA cameras).   I have an old PC that I use for my complete archive; Sony's PMB utility works only on PC's and will do a good job both of archiving, providing a thumbnail database, and re-writing your choice to removable media in it's typical Sony hierarchy.
    If you've only got Mac's, you can still archive your AVCHD recordings; copy them to folders named or organized to your own spec's.   AVCHD is a high-quality compression format, and they'll take up way less disk space than converted Quicktime MOV files.   You can open and play all AVCHD movies quite easily with VLC player.
    The only extra trick to be aware of here is this.  The only reason you would need to preserve the intact "sony" folders (named "AVCHD" / "BMDV" etc) is is you were using Adobe Premiere as a video editor.  Somehow, it needs the hierarchical folder stuff in place to properly index the files.  Not mandatory, but helpful if  you are a Premiere user.  Otherwise, forget the weird "package" folders; just right-click (ctrl-click) on them, choose "view package contents" and MOVE the MTS files out of the Sony hierarchy for permanent storage.  Use VLC player to open and view them.
    From that point on,  you have control over how you manage the files and what intermediate or end-user format you convert them to for your own use.
    I'm not clear on your other question about the files that add the word "converted" on.  Of course Mac will convert to Quicktime MOV files.  Not sure what codec they're using now, likely H.264.  Anyway, don't bother converting.  It'll take up a lot of time and waste a lot of disk space.
    ps. I just found this free utility on the internet.  It's called "MTS CONVERTER". I have not tried it, but it claims to be able to convert all AVCHD files to various useable formats.
    Good luck!  (and happy Valentine's Day!)

  • Why are the iPhotos not listed in the finder?

    why are the iPhotos not listed in the finder?

    There are many, many ways to access your files in iPhoto:   You can use any Open / Attach / Browse dialogue. On the left there's a Media heading, your pics can be accessed there. Command-Click for selecting multiple pics.
    (Note the above illustration is not a Finder Window. It's the dialogue you get when you go File -> Open)
    You can access the Library from the New Message Window in Mail:
    There's a similar option in Outlook and many, many other apps.  If you use Apple's Mail, Entourage, AOL or Eudora you can email from within iPhoto.
    If you use a Cocoa-based Browser such as Safari, you can drag the pics from the iPhoto Window to the Attach window in the browser.
    If you want to access the files with iPhoto not running:
    For users of 10.6 and later:  You can download a free Services component from MacOSXAutomation  which will give you access to the iPhoto Library from your Services Menu.
    Using the Services Preference Pane you can even create a keyboard shortcut for it.
    For Users of 10.4 and 10.5 Create a Media Browser using Automator (takes about 10 seconds) or use this free utility Karelia iMedia Browser
    Other options include:
    Drag and Drop: Drag a photo from the iPhoto Window to the desktop, there iPhoto will make a full-sized copy of the pic.
    File -> Export: Select the files in the iPhoto Window and go File -> Export. The dialogue will give you various options, including altering the format, naming the files and changing the size. Again, producing a copy.
    Show File:  a. On iPhoto 09 and earlier:  Right- (or Control-) Click on a pic and in the resulting dialogue choose 'Show File'. A Finder window will pop open with the file already selected.    3.b.
    b: On iPhoto 11 and later: Select one of the affected photos in the iPhoto Window and go File -> Reveal in Finder -> Original. A Finder window will pop open with the file already selected.

  • Why is THD higher than SFDR in specificat​ion? Why is the SFDR Test done with a -60dB Signal?

    NI Hardware: Multifunction DAQ device USB-9211
    The following questions arise in the decision making process regarding a 24bit-  or 16bit - ADC for acceleration measurements on a gearbox
    Why is the  THD value higher than the SFDR in the specification? The harmonics are excluded for the SFDR measurement?
    Why is the SFDR Test done with a -60dB Signal?
    Whats about a 0dB or -3db sine tone? I expect the SFDR will be much lower.

    Hello Mr Hinrichs,
    Could you
    please give me more detailed information’s, about where you found this data’s about
    THD and SFDR. I had a closer look to the specifications of the USB-9211, but I
    couldn’t find any information in the user manual  USB-9211/9211A User Guide and
    Specifications Are you sure, you named the right devices in your
    post?
    I’m
    waiting for your response, so we can go further with this issue
    Kind regards
    Ulrich Möschel
    Application engineer

  • Why is the position of key frame BEFORE scene changes not after?

    Why is the position of I frame BEFORE scene changes not after?
    And, why doesn't MovieVideoChart show any I frames other than those that correspond to periodic "key frames every X frames"? Is it reading meta data and not really showing where the real existing I frames are located? I.e. WYSIAL (what you see is a lie)? If so, where can I get an affordable tool that will let me examine my files in this regard?
    I have put compression and chapter marks at scene changes in FCP and have exported with markers for DVDSP (both chapter and compression).
    I have read on this forum (somewhere) that when insert key frames every X frames is selected, Compressor is still going to insert key frames automatically at key frames.
    When I last encoded with H.264 in Compressor, I selected option to insert I key frame every 90 frames (fps=29.97).
    When I jump to chapter in my encoded video, where I had place a key frame at a cut, I end up with a chapter at the frame BEFORE the cut.
    I will try moving my chapter/compression marks a frame ahead and see if that helps.
    Certainly, others must have been plagued by this problem.
    When encoding with MPEG2 for DVD, the same thing happens.
    It is a real problem. I get one frame appearing before the cut in chapter skips.
    Hope someone can illuminate this problem.

    Hi there
    As you have seen, RoboHelp doesn't understand how to create the layers you are wanting to achieve the effect in Word. It simply brings the images in as separate objects.
    Basically there are two approaches you might consider.
    You could insert Positioned Text Boxes and configure them to present the images as you want. If you take this approach, you will likely find yourself struggling to maintain the positioning consistently as well as noticing text flow issues. Personally, I'd avoid that approach.
    The other approach involves displaying the images in your Word document so that you see them as intended, then screen capture so you grab the combined image. Then save that combined image and use it instead of the separate images in RoboHelp. This is the approach I'd suggest and that I use myself.
    Cheers... Rick
    Helpful and Handy Links
    RoboHelp Wish Form/Bug Reporting Form
    Begin learning RoboHelp HTML 7, 8 or 9 within the day!
    Adobe Certified RoboHelp HTML Training
    SorcerStone Blog
    RoboHelp eBooks

  • Why is the sparse bundle so much smaller than the backed up computer...can I be confident all files are backed up?

    Hey gang,
    iphoto folder became big so I have moved it to an external drive. I made sure the external disk is not excluded from timemachine backup in tm preferences. Backup seemed to take forever (it actually said "preparing for backup" the whole time with a spinning progress bar) ie 24 hours and still the same pogress bar.
    i stopped the process as i had no confidence anything was actually happening
    When i open up time machine, an earlier version of my imac is there, but the external drive is kind of greyed and i cannot access it.
    When  I check the sparse bundle size, it is under 200 gb, when my imac is around 600 gb, 900 with the external drive.
    Why is the sparse bundle so small relative to the imac? are there hidden data files outside of the sparse bundle? when checking the preferences, it states total included is 921 gb...yet that is not reflected in the sparse bundle size.
    I want to be sure iphoto is actually backed up before deleting it from my imac.
    thanks anyone!

    marten berkman wrote:
    I am wondering whether the "processing" progress bar was due to the time capsule freeing up space for the additional data on the new external drive. When I cancelled it, available space on the tc incresed from 200 to 500 gb.
    Yes, quite possibly.  Especially on Leopard and Snow Leopard, that process on network backups is excruciatingly repetitive and slow.    It's improved greatly in Lion and later, but still isn't exactly quick.
    The backup complete, i checked the contents of the backed up version of the external drive, and the iphoto folder was the same size as original, so I have confidence that iphoto is backed up. Now I could delete the iphoto from the imac, freeing up tons of space.
    Yay! 
    Still curious why the imac sparsebundle is only 160gb, while my macbook pro sparsebundle is about 700 gb...as though they are inversely named from the computers they back up.
    Oh, I didn't realize you had two Macs backing-up to the TC.  Which one is the external HD connected to? 
    Unless you've specifically excluded things, after the initial backup, the sparse bundle should be nearly the size of the data it's backing-up (TM does exclude some things like system work files, most caches and logs, and trash, so the backups are a few GBs smaller).  As you do more backups, of course, it will grow.
    So please clarify how much data is on each drive, Mac, and sparse bundle.
    Also, the 2tb time capsule has 258 gb of 1.8 tb available....am I to suppose that there is hidden backup data not in the sparse bundles?
    Sparse bundles are odd critters.  They don't automatically shrink when things are deleted from them.  Instead, the vacated space is used for new files until it's full, then it begins to grow again.  Time Machine will "compact" them when necessary, to reclaim the empty space, but doesn't take the time to do it unless it's out of room.
    You can do that manually if you want, per the pink box in Time Machine - Frequently Asked Question #12. 
    Message was edited by: Pondini

Maybe you are looking for