scroll buffer

Similar Questions

• A multi-terrain grah, which has a buffer and you can scroll back

  Could someone help me, I'm doing a chart that can handle more than 1 field and updates in real time, has a buffer and allows to scroll back so that it runs without the cursor of the x axis back flip to the prior of the x-axis when you release the mouse.

  I'm ok with aid graphic of waveform or waveform graph.

  Waveform table almost it!  It is so close, it has a buffer, it will update in real time and it can manage more than 1 field... but whenever I scroll to see previous data, once I have let go of the mouse button, the cursor changes beforehand... can not to analyze my data like this (and stopping the graph is not an option).

  I was able to set up graphic waveform with a buffer, the credit goes to chilly charly from this forum for this solution... which was also so close, but I was not able to chart more than a plot with this stamp...

  I enclose the waveform graphic solution that works almost... except no multiple locations.  There are also under screw function... which is fine if that's what it takes, I thought that there could be a simpler solution... the waveform is so close.

  Thank you very much!

  
  

• scroll bar for a waveform graph

  Hi, I am the visible scroll bar in the front, but it's still gray out as shown below. How can I fix? Thank you!

  

  Your property in the history of the ranking may be too small to display data more than that.  Try to set the X axis scale so that it shows only 1 minute of data and your scroll bar will probably work.  If you need more history right click on the chart and select chart length story...  Change that to a much larger number.  The number is the number of data points it will buffer.  Its default value is 1024, which is quite small for most uses.

• Precise timestamp on the graph of the band with scrolling

  I have a user interface with a set of synchronized graphics that operate in mode scrolling stripchart.  The elevator of the x-axis is visible on one of the cards, and the operator has the ability to take a break from the update of this table (essentially locking the entrance to the chart) and scrolling in a bit of history.  The width of the graph is about one minute of data, the number of points has been set to allow about an hour to scroll of history.  Other maps which are synchronized with the main chart have the x-axis property nodes attached, so that they follow the scrolling of the main graphic.

  Everything works fine with the current configuration, except for one small detail: the timestamps.  I put date and time stamping visible on the x-axis of the main graphic, so that operators know exactly when any aberration in the data actually took place.  I have seen a few entries in how add real timestamp, but none of them seemed to work properly.  They work very well on a standard sight, but fail miserably once the scrolling action is activated, so I have to do something wrong.

  Any suggestions on the best way to get this accomplished timestamp?  It's absolutely crazy to me how much pain is to put a timestamp to the real real world in a graphic...  As someone who constantly defends LabVIEW against colleagues who claim that it is "too difficult" to use it, it's kind of embarrassing when a thing so simple becomes so complicated in LabVIEW!

  The short answer is that this is impossible with a graphic if you add the requirement to be able to take a break. The reason is simple - a chart stores data on its own, but it saves all the values of X - you give only values Y and for the X values he simply uses the index of the value and the most you can do is set a t0 and delta t for the X scale. This works normally, but does not work when you stop feeding data to the chart, because the value of X is not stored. I heard someone say once a waveform graph does not allow this, but I've never looked into it and I'm not sure that's true.

  What you can do is use a graphic instead of a chart - in a graph, you provide values X and Y for each point, so you can have absolute time for the x-axis values. The key point is that, to a chart, you must provide all the data to draw, you must maintain a circular buffer of the data yourself. You can do this by using a queue with loss, when you preview the queue to get the data, but there are also some examples online, as well as in the finder of the example, if you search for 'XY Chart'.

• Difficult to scroll with the background color of table cell

  When I changed the background color of cell, the table has become difficult to achieve.

  And I can't finish change the cell background color, it takes forever.

  Anyone encountered this problem before?

  LabVIEW 2011 on WinXP.

  Hello Zou,.

  The problem is not with "background color of the cell.

  But the problem is with the "size of the Table!

  When the size of your table is huge, the windows + chart LabVIEW take longer to scroll.

  Attached VI may help you to experience the same. Change the size of the table and the roll of experience.

  Solution: -.

  1 initialize the Table for that size, if the size of your table is small.

  2. use a table (UI) + Scroll Bar (Manual from Numeric range) + internal buffer (block diagram), for the size of the huge table

  Kind regards

  Yogesh Redemptor

• Chromebook scrolling is jerky and hesitant

  I had my chromebook less than two weeks, I was in love, but these last two days pushed me crazy.

  Scrolling is jerky and freezes for about five to ten seconds, he does constantly seconds out.

  I use a mouse, but it was fine for the 10 or 11 days before it started. I tried to use the buffer, but it always does.

  I found on another forum someone with the same problem and they said to check applications and extensions added. I added no new, I even took a little exsiting apps that I is not enough, but it always does.

  He also said disconnect and go until invited, I tried and it was much better.

  My chromebook is an Acer, model cb3-111-c4gd.

  If anyone has hints or help, it would be much appreciated. Thank you.

  Hi croths,.

  So the step of logging in the guest account is a great first step. The underlying idea is that you wouldn't have any of your personal applications or settings loading and can isolate if the problem is related to the software (operating system or hardware). Whereas it was better, but not perfect (?) the next step would be to do a wash of 'power' that will rebuild the operating system and allow you to start over. It is fast and takes just a few minutes, but if you have personal data you want to save, you have to press this first.

  Here are the steps to do a powerwash: http://acer.custhelp.com/app/answers/detail/a_id/27685

  Next step would be to perform a full recovery of the system, you can download an OS to a flash drive and install it in your Chromebook. Here are the steps: http://acer.custhelp.com/app/answers/detail/a_id/27637

  Finally, if you still having problems I would suggest contacting support as it may be a hardware problem, that we have for you.

  Hope this helps,
  Cory

• Scroll of blackBerry Smartphones are becoming very difficult to "BOLD" (with a pad, not a scroll wheel)

  Hello

  Scrolling became very difficult in my "BOLD", but it has a pad, not a scroll wheel, so I can't follow the spoken wheel and push solution previously in these forums.

  The symptoms are that it is difficult to get the cursor to move to the left or to the right or upwards or downwards, sometimes that it moves more easily than other times, but never as easy as it was until last week. What often happens is that I end up pressingteh pad too hard trying getting the top of the page to save the movement and thus itreads as a click instead.

  I tried to clean the buffer, cleaning of my thumb or finger, battery-out-restarted "BOLD" of countless times, tried with my fingers wet and dry...

  It seems that she has changed after an update has been downloaded, but maybe it's just my perception.

  In any case, what could be the problem and what is the solution please?

  Hello qw8,

  Welcome to the forums.

  Take a look at the knowledge base article below which may help you with your trackpad problem.

  KB29640

  Trackball, keyboard or trackpad not working only not on a BlackBerry Smartphone.

  I hope this helps. Nice day.

• Using the method of the cushion two fingers to scroll

  I just bought a HP dv7t laptop and cannot scroll regularly using the method of the buffer 2 fingers.  This is a new laptop.  Need help because it drives me crazy... Ralph

  Called HP support and they tried to solve the problem to play around with all the settings, nothing worked.  I decided that I wanted a replacement and they agreed, BUT it was going to cost me another $137 because the price had increased.  Needless to say I was angry, and he went out on the tech rep.  Escallated Manager and after reminding them that this order has indicated very clearly "Returns or exchanges of this product will be accepted until 21 days after childbirth' and it was 1 day after childbirth and that it would be illegal to deny the full exchange for $ 0 they caved.  However; they would not place the order before receiving the defective pc.  Enough said for their support.  I have no idea how they keep their customers with these idiots or stupid policies.  The next day, I returned the pc through their shipping prepaid by e-mail label.  That evening, I received notification that the order has been placed at $ 0 charge with the date of delivery of January 27, including 2 delivery day (it was nice because it is normally 5-7 business days).

  Hope this new pc is against any defect... Ralph

• Double buffer program is slowing down, help.

  Hello, I have a small program of lines of dance as an old Windows screen saver program, and it seems to slow down after about 30 seconds to a minute. I have 'clear' my buffer by copying a symbol in black screen size of the buffer. If anyone has any ideas on how to make it more efficient and above all to stop the slow down, let me know, thanks.

  // Variables
  var x0:int;
  var y0:int;
  var x1:int;
  var y1:int;
  var x2:int;
  var y2:int;
  var x3:int;
  var y3:int;
  var dx0:int;
  var dy0:int;
  var dx1:int;
  var dy1:int;
  var dx2:int;
  var dy2:int;
  var dx3:int;
  var dy3:int;
  var counter:int = 0;
  var clearBuffer:Buffer = new Buffer();
  var drawing:Shape = new Shape();
  var color1:uint = uint(0xFFFFFF * Math.random());
  
  // Initialize Line Values
  x0 = int(Math.random() * 320);
  x1 = int(Math.random() * 320);
  y0 = int(Math.random() * 200);
  y1 = int(Math.random() * 200);
  x2 = x0;
  x3 = x1;
  y2 = y0;
  y3 = y1;
  
  // Initializing Line Velocities
  dx0 = int(Math.random() * 5);
  dx1 = int(Math.random() * 5);
  dy0 = int(Math.random() * 5);
  dy1 = int(Math.random() * 5);
  dx2 = dx0;
  dx3 = dx1;
  dy2 = dy0;
  dy3 = dy1;
  
  // Double Buffer Setup
  var bitmap:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight,true,0xff000000);                          
  var buffer:BitmapData = new BitmapData(stage.stageWidth,stage.stageHeight,true,0xff000000);
  var image:Bitmap = new Bitmap(bitmap);
  addChild(image);
  
  // Listeners
  addEventListener(Event.ENTER_FRAME,onEnterFrame);
  
  function onEnterFrame(event:Event):void {
       
       // Clear The Sreen
       buffer.draw(clearBuffer);
       
       // Logic
       drawing.graphics.lineStyle(1, color1);
       drawing.graphics.moveTo(x0,y0);
       drawing.graphics.lineTo(x1,y1);
       if ((x0 += dx0) >= 315 || x0 < 5)
            dx0 *= -1;
       if ((y0 += dy0) >= 195 || y0 < 5)
            dy0 *= -1;
       if ((x1 += dx1) >= 315 || x1 < 5)
            dx1 *= -1;
       if ((y1 += dy1) >= 195 || y1 < 5)
            dy1 *= -1;
            
       if (++counter > 50) {
            drawing.graphics.lineStyle(1, 0x000000);
            drawing.graphics.moveTo(x2,y2);
            drawing.graphics.lineTo(x3,y3);
            if ((x2 += dx2) >= 315 || x2 < 5)
                 dx2 *= -1;
            if ((y2 += dy2) >= 195 || y2 < 5)
                 dy2 *= -1;
            if ((x3 += dx3) >= 315 || x3 < 5)
                 dx3 *= -1;
            if ((y3 += dy3) >= 195 || y3 < 5)
                 dy3 *= -1;
       }
       
       if (counter > 250)
            counter = 51;
                 
       // Draw The Screen
       buffer.draw(drawing, drawing.transform.matrix);
       bitmap.draw(buffer);
  }

  P.S. - Is there a way I can post my code in a small box with a scroll bar?

  You get a slow down because you are filling the shape to your drawing with vectors and never cleaning. You need to publish periodically a drawing.graphics.clear () to clear all these vector lines. You can play with it, but as a simple solution, you can replace the line:

  If (counter > 250)

  counter = 51;

  with this:

  If {(counter > 250)
  counter = 51;
  Drawing.Graphics.Clear ();
  Color1 = uint (0xFFFFFF * Math.random ());

  }

• Redo Log Buffer - Online redo - archived journal - LGWR

  Hello
  
  It is specified in this document that redo entries is set to all changes (LMD), the database Redo Log Buffer (my question is when does? after validation?).
  
  And, in this connection, they say engaged and committed changes in the section again. But when you scroll down to the section Commit on the same link, after a commit log writer process (LGWR) will write journal entries of the SGA (log buffer) forward in the line redo log file.
  
  I wonder how? When I tested it on my database table that holds the record of > 300 000, recovery, and subsequently logs archive logs is generated (I did not commit the DML yet).
  
  Now my question is, how far is the whole of the archivelogs will be useful at the time of recovery, if I restore the changes? If Oracle doesn't know these archivelogs, why it should generate?
  
  And what section in the second link is correct?
  
  Help, please.
  
  Thank you
  Aswin.

  Aswin,

  Undo segments are ordinary data segments. Data segments are protected by roll forward. Temporary segments are not protected restore in progress.
  If in the case of an accident, when Oracle must retrieve a rollback segment, it will use again to recover this segment.
  In crash recovery, the first thing that will happen is rollback (Undo uncommitted changes), followed by rollforward ("readback" of committed changes).

  HTH

  -----------------
  Sybrand Bakker
  Senior Oracle DBA

• My wireless mouse works fine everywhere except in Mail. It is simply not to scroll or work at all.

  My wireless mouse works fine in all applications except Mail, where it does not at all. It is altogether we els and absent when I try to use it either as a pointer to a specific e-mail or use it to scroll. It simply is not there. What gives?

  Please could you tell us what operating system you are using.   It isn't iOS with an iMac.

• Trackpads only 2 fingers scrolling on the Mac Mini

  I have two Magic trackpad (wireless), a couple of years; No will 2 fingers scrolling on my Mac Mini (try them for the first time on the Mini). both work fine on my other machines.  All machines are updated to the latest version of El Capitan, a lot of RAM.  Same settings trackpad on all machines.  The movement of the cursor trackpad, highlighting, click Select OK on the Mini, but no two fingers scrolling, without pinching to resize.  Have not checked all the possibilities, but lack of scrolling is a deal breaker.  Track pad update 1 is too old, have not found another.  Tried with mouse wireless on and outside.  A run first aid.  Reinstalled the system software.  Even enabled the scrolling options, the settings of the mouse.  Help!

  If two of your machines running El Capitan and touchpads are version 1 of Trackpad, it is probably the reason.   While versions more old mouse and trackpad will work to some extent, all the features with El Capitan requires the version of Magic Trackpad 2.   The MT2 has developed especially for El Capitan and later operating systems.   I know that it's a nuisance, but the new trackpad is levied directly on your machine and needs no battery.

• Unable to scroll upwards or downwards with the iPhone iOS 10 6 s more

  With any screen with my iso 10, it is difficult to move or scroll. Is there an adjustment for this?

  It's the same thing with the home screens, it is difficult to move to the next set of icons or just

  scroll up and down with safari.

  Thank you

  Bill

  This has been fixed with orders to "hold time."

• The scrolling behavior is not smooth after update to Mac OS Sierra

  After that the macOS update Sierra the scrolling behavior has changed, does anyone have same experiences?

  I can still scroll trough a Web page without a problem. I mean the scroll with 2 fingers on the touch pad or scroll with the magic mouse gesture.

  BUT: In trying to slowly scroll through long lists of selections, just answers touching on fast movements, not on the slow change.

  Steps to reproduce:

  Open a Web site like twitter and go to preferences. Go to the time zone list, open it, and scroll through it. Can you move the cursor to line by line?

  You can also move to http://www.doyouspain.com/mietwagen/ , select a country like the Spain a try to SLOWLY scroll list.

  (I just discovered: the list of operating system at the end of this page shows the same problems with PCMCIA)

  I found this behavior using "Parallels Desktop". I can't scroll the documents most as before the update.

  Hello!

  Please open the accessibility, to increase the scrolling speed move the slider from slow to fast (from left to right).

  A screenshot for reference.

  

  Thank you!

• Scrolling problem

  I have the scrolling problem in netbeans IDE in my macBook pro early 2015 (retina 13 inches), somewhere that is extremely fast cannot see what is happening and in a place more slowly scrolling and not able to fix by increase or decrease scrolling speed of the trackpad in

  sys.pref-> accessibility.

  Everyone please help.