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  • How to detect and collide two elastic line segments?

    - by Tautrimas
    There are 4 moving physical nodes in 3D space. They are paired with two elastic line segments / strings (1 <- 2; 3 <- 4). Part I: How to detect the collision of two segments? Part II: On the moment of collision, fifth node is created at the intersection point and here you have the force-based graph. 5-th node (bend point) can slide among the strings as in a real world. Given the new coordinates of 4 nodes, how to calculate the position of the 5-th node on the next frame? I assume string force on the nodes to be F = -k * x where x is the string length. All I came up to is that the force between 5 and 1 equals 5 and 2 (the same with 3 and 4). What are the other properties?.

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  • How to get my laptop to detect SD cards inserted into its built-in card reader?

    - by Candelight
    My laptop has a built-in SD Card reader but it cannot detect one when inserted. Here is the result when I type lspci from the terminal: 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 10) 00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge 00:06.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge 00:07.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge 00:12.0 IDE interface: ATI Technologies Inc IXP SB400 Serial ATA Controller (rev 80) 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80) 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80) 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller (rev 80) 00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 83) 00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller (rev 80) 00:14.2 Audio device: ATI Technologies Inc IXP SB4x0 High Definition Audio Controller (rev 01) 00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80) 00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge (rev 80) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:05.0 VGA compatible controller: ATI Technologies Inc RS482 [Radeon Xpress 200M] 04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01) 05:04.0 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) 05:04.2 SD Host controller: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01) 05:04.3 Mass storage controller: O2 Micro, Inc. Integrated MS/xD Controller (rev 01) 05:09.0 Network controller: Ralink corp. RT2561/RT61 rev B 802.11g

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  • Why does Ubuntu 13.10 not detect my Win7 partition?

    - by goutham
    I'm trying to install Ubuntu 13.10 alongside Windows 7 on my DELL INSPIRON 14z 5423 laptop and I'm new to all of this. I'm using the Ubuntu 13.10 64-bit ISO burned onto a CD. The first time I tried to install it, Ubuntu said it did not detect any other OS, which meant I only had 4 options: Erase disk and install Ubuntu (I don't want to do this) Encrypt new Ubuntu. Use LVM. Something else. If I choose the Something else option, it brings me to the partition menu and says that I have 1 disk with free space of (500Gb), but that's not true because I have Windows 7. I restarted the laptop several times and booted the CD again and I got exactly the same as I did previously. How do fix this problem and install Ubuntu alongside Windows 7? After executing "sudo fdisk -l" command in terminal ubuntu@ubuntu:~$ sudo fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xd2b811c5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 314574847 157184000 7 HPFS/NTFS/exFAT /dev/sda3 314574848 629147647 157286400 7 HPFS/NTFS/exFAT /dev/sda4 629147648 976771071 173811712 7 HPFS/NTFS/exFAT After removing one partition I executed command once again ubuntu@ubuntu:~$ sudo fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xd2b811c5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 629145599 314469376 7 HPFS/NTFS/exFAT /dev/sda3 629147648 976771071 173811712 7 HPFS/NTFS/exFAT

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  • Why does Ubuntu only detect one USB LAN adapters at a time?

    - by EGO
    I try to connect real switch with my computer for an exam preparation, for this purpose I need more than one LAN cards, and there is only one built in LAN card in my computer. So, to get more LAN cards, I bought 4 USB Ethernet adapters (as I have 4 usb ports in may laptop 2 usb 2.0 ports, 2 usb 3.0 ports). When I plug these adapters in my computer Ubuntu only detects one LAN card from 2.0 usb ports, and one LAN card from 3.0 ports. And sometimes detects only one USB LAN from all the usb ports. Actually the real problem is Ubuntu shows these USB LAN adapters in the "lsusb", but does not list them in "ifconfig". Kontron (Industrial Computer Source / ICS Advent) is my LAN USB ethernet. abc@ubuntu:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hu Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hu Bus 002 Device 012: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 001 Device 003: ID 138a:0018 Validity Sensors, Inc. Bus 001 Device 004: ID 064e:e258 Suyin Corp. Bus 003 Device 011: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 002 Device 013: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 003 Device 012: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 002 Device 005: ID 0a5c:21b4 Broadcom Corp. BCM2070 Bluetooth 2.1 + EDR -- etho is my built in LAN card, while eth1 is the only USB LAN card that ubuntu has detected. abc@ubuntu:~$ ifconfig eth0 Link encap:Ethernet HWaddr 2c:27:d7:a5:d2:39 inet6 addr: fe80::2e27:d7ff:fea5:d239/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:21056 errors:0 dropped:1 overruns:0 frame:0 TX packets:5669 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1407289 (1.4 MB) TX bytes:372566 (372.5 KB) Interrupt:49 Base address:0xa000 eth1 Link encap:Ethernet HWaddr 00:e0:4c:53:44:58 inet6 addr: fe80::2e0:4cff:fe53:4458/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:9230 errors:0 dropped:0 overruns:0 frame:0 TX packets:9230 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:557648 (557.6 KB) TX bytes:557648 (557.6 KB) wlan0 Link encap:Ethernet HWaddr cc:52:af:5e:78:05 inet addr:192.168.1.65 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::ce52:afff:fe5e:7805/64 Scope:LinkU UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:17389 errors:0 dropped:0 overruns:0 frame:0 TX packets:12231 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:22452248 (22.4 MB) TX bytes:1502750 (1.5 MB) If I unplug the USB LAN card which Ubuntu has detected, then Ubuntu will detect a USB LAN card from the remaining plugged adapters, and process go on untill I plug all the USB LAN adapters. Looking for some urgent help. Thanks

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  • How to detect non-graceful disconnect of Twisted on Linux?

    - by Victor Lin
    I wrote a server based on Twisted, and I encountered a problem, some of the clients are disconnected not gracefully. For example, the user pulls out the network cable. For a while, the client on Windows is disconnected (the connectionLost is called, and it is also written in Twisted). And on the Linux server side, my connectionLost of twisted is never triggered. Even it try to writes data to client, but the connection is lost. Why Twisted can't detect those non-graceful disconnection (even write data to client) on Linux? How to makes Twisted detect non-graceful disconnections? Because the feature Twisted can't detect non-graceful, I have lots of zombie user on my server. Thanks. Victor Lin.

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  • iPhone: How to detect if an EKEvent instance can be modified?

    - by Tom van Zummeren
    While working with the EventKit on iPhone I noticed that some events can exist which cannot be modified. Examples I encountered so far are birthdays and events synced with CalDAV. When you view the event's details in the standard built-in calendar app on iPhone the "Edit" button in the top-right corner is not visible in these cases, where it would be visible when viewing "normal" events. I've searched everywhere, read all documentation there is but I simply can't find anything that tells me how to detect this behavior! I can only detect it afterwards: edit an event's title save it to the event store check the event's title, if it has not changed it is not editable! I am looking for a way that I can detect the non-editable behavior of an event beforehand. I know this is possible because I've seen other calendar apps implement this correctly.

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  • How to Detect Forward and Back Mouse Button Events in Delphi?

    - by EagleOfToledo
    If a mouse has other buttons in addition to the standard left/right/middle (e.g. forward/back), how can we detect those button clicks in Delphi? An example of how this is used is the Internet Explorer, where the forward/back button on the side of a Logitech or MS mouse cycles forward and back between any loaded web pages. This seems to replicate the Backspace/CTRL+Backspace on the keyboard but I tried to detect that using KeyPreview and the KeyPress event but it does not pick it up. Any idea how to detect clicks on these extended mouse buttons?

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  • How to detect exception when executing Javascript in NPAPI plugin?

    - by Jordfräs
    In a plug-in I am using NPN_Evaluate() to execute some Javascript. How can I detect wether the Javascript raises an exception? Basically I want to execute any piece of Javascript and get the result from it or detect if it raised an exception. I tried wrapping my Javascript code like this: try { // Injected Javascript code here } catch (exc) { exc; } That way the result from NPN_Evaluate() will be an NPObject* containing a property "message" with the exception message if something goes wrong. But how can I know that it is an exception? It might as well be a result from the injected Javascript code. Am I approaching this the wrong way? Can I detect an exception without catching it in Javascript and returning the exception as the result?

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  • What is the best way to detect Copy (Ctrl+C) event in an IWpfTextView?

    - by Nick U
    I am trying to detect a copy event in the text view and I have been researching the best way to do this. Is it to possibly hook into the StandardCommand Copy event somehow and detect it that way? Or is it possible to use the KeyProcessor(and simply detect Ctrl+C keypresses)? My extension is currently implementing the IWpfTextViewCreationListener; is there a way to somehow get access to the KeyProcessor or StandardCommand from the IWpfTextView that the listener is passing to me? If so, can you post a code sample that demonstrates this? Thanks, Nick

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  • Any alternative to jQuery change() to detect when user selects new file via dialog box in IE8?

    - by ecu
    I am unable to detect when input type="file" changes its value after user selects file and the dialog box closes. $('.myInput').change(function(){ alert($(this).val()); }) Above jQuery code works perfectly in all browsers apart from IE. For some reason IE detects the change only after input field loses focus. Is there a way to detect the change immediately after dialog box closes? Or maybe to force input field to lose focus after dialog box closes so IE can detect it? I'm puzzled. Thanks for any help.

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  • how to detect an F5 refresh keypress event in jquery?

    - by chaonextdoor
    I noticed that jquery has a keypress function. But it seems that it can only detect keypress event of numbers and characters. It cannot detect the F5 keypress event. And What surprises me the most is everyone online says that the keyCode of F5 is 116, But when I use the jquery keypress function, it just shows that the character t has the keyCode of 116(it seems that 116 is the ascii code of lowercase t)! Can somebody give me any idea about this and how to detect the F5 event in javascript or jquery? Thanks so much in advance.

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  • How to detect that an Html element is in View?

    - by Olaseni
    Using Jquery preferably, how do I detect if an element is within the viewable client area of a browser? I'm dynamically creating a menu from a dataset, and when the list grows too long, the height of the resulting menu causes part of it to fall below the browser bottom client area. How do I detect this and act accordingly?

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  • How to programmatically detect sata drive unplug in SuSE Linux?

    - by Steven Behnke
    Does anyone know of a method I can use to programmatically detect if a SATA hard drive has been unplugged? Our file system is mounted in READ-ONLY mode when we need to detect the removal of the drive. We noticed the other day that we were able to unplug a hard drive and everything continued to run without a hitch until the next time we attempted to read from a file on disk.

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  • How to detect Windows 64 bit platform with .net?

    - by Marc
    In a .net 2.0 C# application I use the following code to detect the operating system platform: string os_platform = System.Environment.OSVersion.Platform.ToString();<br/> This returns "Win32NT". The problem is that it returns "Win32NT" even when running on Windows Vista 64bit. Is there any other method to know the correct platform (32 or 64bit)? Note that it should also detect 64bit when run as 32bit app on Windows 64bit.

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  • How to detect for screenreaders/MSAA without focusing the flash movie?

    - by utt73
    I am trying to detect for the presence of assistive technology using flash. When a Flash movie holding the actionscript below on frame 1 is loaded (and screenreader chatting to IE or Firefox over MSAA is active -- JAWS or NVDA), Accessibility.isActive() does not return "true" until the movie is focused. Well, actually not until some "event" happens. The movie will just sit there until I right-click it & show flash player's context menu... it seems only then Accessibility.isActive() returns true. Right-clicking is the only way I could get the movie to "wake up". How do I get the movie to react on it's own and detect MSAA? I've tried sending focus to it with Javascript... can a fake a right-click in javascript or actionscript? Or do you know the events a right click is firing in a flash movie -- possibly I can programatically make that event happen? My Actionscript: var x = 0; //check if Microsoft Active Accessibility (MSAA) is active. //Setting takes 1-2 seconds to detect -- hence the setTimeout loop. function check508(){ if ( Accessibility.isActive() ) { //remove this later... just visual for testing logo.glogo.logotext.nextFrame(); //tell the page's javascript this is a 508 user getURL("javascript:setAccessible();") } else if (x<100) { trace ("There is currently no active accessibility aid. Attempt " + x); x++; setTimeout(check508,200); } } /* //FYI: only checks if browser can talk to MSAA, not that it is actually running. Sigh. if (System.capabilities.hasAccessibility) { logo.glogo.logotext.nextFrame(); getURL("javascript:setAccessible();") }; */ check508(); stop(); My HTML: <embed id="detector" width="220" height="100" quality="high" wmode="window" type="application/x-shockwave-flash" src="/images/detect.swf" pluginspage="http://www.adobe.com/go/getflashplayer" flashvars="">

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  • how to detect whether strings are not captured for localization in .po files i.e no equivalent entry

    - by Manjushree
    Hi we have some queries regarding localization/.po files 1 We want to detect the missing strings or strings which are not being captured for L10N. how we can detect that? is that any method or command to update the strings 2 Locale files (.po) for "cn-zh" or another Locale are not complete (missing strings) 3 String has been captured for L10N but does not have a matching pair in .po files

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  • How to detect interrupt handle routine of a device driver?

    - by sasayins
    Hi, I'm using Linux platform to program in embedded device. Is there any way that a kernel module can detect the interrupt handler routine of an another device driver module? Like for example, I have a kernel module(.ko), then I want this kernel module detect if a particular device driver execute its interrupt handle routine? Is this possible? Many thanks.

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  • How to detect Help button press in Windows Forms MessageBox?

    - by sashaeve
    I have a message box with 3 buttons: Yes, No, Help: var result = MessageBox.Show("text", "title", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button1, true); I can detect if Yes/No buttons where clicked something like this: if(result == DialogResult.Yes) // some actions How I can detect that Help button was pressed and execute my own code?

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