GCDExport User Manual
Contents
1. Output Files The GCDexporter generates a single ASCII text file after reading the GCD input files This file consists of header line followed by a line for each vector sample in the input GCD files Each line contains the vector sample the gait cycle sample percentage and a side identifier plus any selected variables PelvicTilt GC legid LeftCadenc LeftStrideTime 10 627 0 0 0 923 1 083 10 525 2 0 0 923 1 083 10 394 4 0 0 923 1 083 10 219 6 0 0 923 1 083 10 038 8 0 0 923 1 083 9 962 10 0 0 923 1 083 10 e File Formats GCDExport User Manual Index A About dialog box 6 C close 8 E exit 3 export 2 export dialog box 2 F file menu 1 H Help menu 6 help topics 6 I installation 2 L log clear 4 maximize 8 menu file 1 Help 6 view 4 minimize 7 MLS Home Page 6 GCDExport User Manual move 7 O options 4 Options Export 5 Extensions 5 Options dialog box 4 R restore 8 S scroll bars 7 select directory 1 size 7 status bar 4 T title bar 6 toolbar 4 U user interface 1 V View menu 4 Index e 112. The input file format is aDST lexicon that comprises a set of text and numeric variables for use in the storage and or transmission of processed gait analysis data The underlying characteristic of all time sampled data contained in a GCD file is that the sample timebase is normalized to the duration of one gait cycle starting with Initial Contact and ending with the subsequent Initial Contact This provides the great advantage that values on the same timebase sample can be compared and or averaged between different GCD files for different experiments The cycle duration or StrideTime is always included allowing the timebase to be de normalized The number of timebase samples included in one gait cycle is not fixed and may change from one variable to another For example raw EMG generally requires higher temporal resolution than joint angles A default for the number of samples is defined for each variable Where bilateral data is included in aGCD file it will normally but not necessarily correspond to the gait cycles for a pair of overlapping strides normalized separately A typical GCD file looks like this DST 1 0 GCD Motion Lab Systems SCOMMENTS Cadence 0 995 0 098 IStrideTime 0 994 0 084 PelvicTilt 10 355 3 772 10 215 3 745 10 049 3 718 GCDExport User Manual File Formats e 9 All variables defined a GCD file should conform to the CAMARC DST Syntax Protocol and CAMARC Standard Terms and Definitions
3. main window and the position of the Toolbar will be the same The name of the directory from where the GCD files have been read will be displayed in the top left corner of the application before the name of the Application At this point virtually all the commands that you will need are on the short cut bar at the top of the program window The File Menu can always be selected from the left side of the Menu Bar This menu contains commands that allow you to select the directory and extract the data Select Directory This command can be used to select the directory that contains the files from which the data needs to be extracted The opens a Select Folder dialog where you can select the directory Using the Program e 1 2 e Using the Program Look in E Tutorged gt E IS ex Current Folder C Program Files WICON TUTORGED Cancel A Figure 2 Browse for Folder dialog The application looks through the selected directory and uses all the files that have an extension that you are looking for The extensions you want to use can be specified by using the Options command on the View menu Export command This command can be used to export the data from the selected data files to an ASCII file This command opens the Export dialog box where you can choose the multi value variable and the single value variable s should need to be used The application will then prompt you for an output file to which the data should be
4. saved Once this choice is made the application will extract the necessary data from each data file and write to the output file The multi value variable will be written first for each data file followed by the percent of gait cycle the side which the multi value variable belongs to and then the columns of single value data The multi value variable in written to the file as it is found in the GCD file If there are multiple columns of data in the GCD file each column is written to the GCD file The percent of the gait cycle at which the data is collected is written You can choose whether this should be written as an integer value or as a real value from the Export Options dialog using the Options command View menu If there are more than 101 points in the cycle the gait cycle values should be written as real values There is a column titled legid which shows you the side which the multi value variable belongs to O for left side 1 for right side and 2 for no associated side After the data is exported the results of the export can be seen in the Log column of the main view If a file is exported this column will be empty If the data from the file could not be exported this column will specify the reason for it Export dialog box This dialog box is used to select the single valued variable s and the multi value variables that will be exported GCDExport User Manual GCDExport User Manual Dre 0000706 GCD Side Bot
5. toolbar buttons as you depress them before releasing them If after viewing the description of the toolbar button command you wish not to execute the command then release the mouse button while the pointer is off the toolbar button Clear Log This command can be used to clear all the entries in the Log column of the main view The entries get cleared automatically when an export is started Options This command can be used to set the options in the application It opens the Options dialog box where there are pages in which you can set the options Options dialog box This is a dialog box that has two pages where you can choose the extensions that the application should look for when searching a directory for data files and also set some export options GCDExport User Manual GCDExport User Manual Extensions page Figure 3 Extensions Page This page has the following controls Used Extensions This list box shows you all the extensions that will be searched for New Extension Enter the extension that you want to add to the list and click on the Add button Delete This button can be used to delete the selected extension from the list Export Page Figure 4 Export Page This page has the following controls Using the Program e 5 Help menu Export Gait Cycle Data as This allows you to choose the format in which the percent gait cycle field should be written to the export file This menu contains
6. Contents Introduction 1 Overview 28 fee heck are ar en en Ree ted ai AK AA eect 1 Installations es a sera ee ee ee ete 2 Using the Program 1 The User Interface Ata Aan 1 PA a AA 1 Select Dire CtOry ns nn er A Ban AA an A A Ban a ni aa 1 Exp rt c mm nd as ha AB nk A A an A aa A ann beavis an AA Kai 2 Export dialog DOK nn SA nn ne Bess Aan Ruan inai 2 Expres et Mites al a Pete eat 3 View MEL ds a ee e o o A Ms Lo 4 Tola e ts e e Mites o rl do Ped o Lo 4 Status Bani A e a rn 4 Cleat 10 846s ies ia 4 OPULONS sees sees ie ti 4 Options dialog POX nn Sen AA An AAA ANA AAA AAA 4 IR a a Bestes a ie ats 6 Help Topless tira a 6 MES Home Papers llave 6 About GEDEXPORE 2 esse essen kenn 6 General Information Banana A AAA 6 Title Bat Ann Ann A AAA iaa 6 Scroll Bars ia anne AAA AAA 7 Size command System MENU en ena aa na aa nanas ana 7 Move command System Menu a aa nono nc nono nono nc cnn nono essen 7 Minimize command System men cee eesseceeeeeseeceseeesseeceeeeecsaeceeeeeeaeceseeeesaeeeenees 7 Maximize command System menu ce essceseeeeseceeeceeseeceeneecaeceeeeeeaeceeeeecsaeeenees 8 Close command System men cecceeeceeseeceeecesseeceeeeessaeceeeeecsaeceeeeeesaeceeeeecsaeeenees 8 Restore command System Menu aaa nennen aaa anakan 8 Index 11 GCDExport User Manual Contents e Introduction Overview A complete descripti
7. GCDExport By Motion Lab Systems Inc MOTION LABRA SYSTEMS GCDExport User Manual Published June 1999 Version 1 00 of GCDExport Intended Audience This manual is written for anyone using the Motion Lab Systems GCDExport program to extract data from files formatted using the CAMARC DST file specification This program runs on either the Windows 98 and Windows NT operating systems it is assumed that the user is familiar with the operating system that they are using Manuals for these products are available from their manufacturers The following are registered trademarks AMASS Adtech BITIS TELEMG Bioengineering Systems and Technology CODAS Dataq Instruments ExpertVision3D KinTrak Motion Analysis Corporation VICON VCM VICON Clinical Manager Oxford Metrics Limited Windows 98 Windows NT Microsoft Corporation Y2K complience statement The GCDExport application is Year 2000 compliant It will not produce errors in date data related to the year change from December 31 1999 to January 1 2000 It will handle leap years correctly All MLS products either do not use internal date codes or utilize specific non ambiguous representation handling and interpretation of centuries Motion Lab Systems Inc 4326 Pine Park Drive Baton Rouge LA 70809 Phone 225 928 GAIT 4248 Fax 225 928 0261 Email support emgsrus com http www emgsrus com Printed in the United States of America Motion Lab Systems Inc 1999
8. commands useful in finding for the Application Help Topics This command gives an index of the help topics that are available for the application It is possible to search for a topic of interest Help is available by highlighting a menu item and then clicking the F1 key Help can also be sought by clicking the Shift Fl keys This transforms the cursor into a help cursor and the user can click on the item of interest to see the help topic associated with it MLS Home Page If you have an Internet connection and use the World Wide Web then you can launch your Internet Web browser directly from this item and visit the Motion Lab Systems Home Page You can check here for new updates to this application as well as download evaluation copies of other Motion Lab Systems software products You can also contact Technical Support directly from this Web Page About GCDExport This opens a dialog box provides information about the application This dialog box shows you the following information e The Name of the Application with the Application Icon e The Version Number of the Application General Information 6 e Using the Program This section lists some general information about the Application Title Bar The title bar is located along the top of a window It contains the name of the application and document To move the window drag the title bar Note You can also move dialog boxes by dragging their title bars A title bar may co
9. h _ Cancel Multi Valued Variables Single Valued Variables Variable ILeftPelvicT ilt ILeftPelvicO bliquity __ LeftCadence ILeftPelvicRotation LeftStrideTime ILeftHipFlexE xt LeftO ppositeFootO ff ILeftHip b dduct Vil a ILeftHipRotation hall Eu EEE ILeftKneeFlexE xt a LeftStePT ime Br Y ILeftSingleSupport LeftKneehotat on ILeftDorsiPlanFlex had LeftDoubleSupport ILeftFootRotation wH LeftFootOff m This dialog box has the following controls Data Files This is a drop list box that contains all the select data files When you select a file from the list the variable boxes below will be populated with the variables from the selected file Side This can be used to control the variables that appear in the boxes below Choosing Left or Right will show variables from that side and also variables that have no side associated with it Choosing Both will display all the variables Multi Valued Variables This list box contains the multi valued variables from each data file These are variables that have more than one data element You must choose one variable from this box that will be exported Single Valued Variables This list box contains the single valued variables from each data file These are variables that have only one data element You can choose one or more variable from this list by checking the box next to the variable name OK This validates you choices and p
10. ntain the following elements e Application Control menu button e Maximize button e Minimize button GCDExport User Manual GCDExport User Manual e Name of the application e Name of the document e Restore button Scroll Bars Displayed at the right and bottom edges of the document window if the size of the window is smaller than what it should be to display the contents of the window The scroll boxes inside the scroll bars indicate your vertical and horizontal location in the document You can use the mouse to scroll to other parts of the document Size command System menu This command can be used to display a four headed arrow so you can size the active window with the arrow keys P After the pointer changes to the four headed arrow 1 Press one of the DIRECTION keys left right up or down arrow key to move the pointer to the border you want to move 2 Press a DIRECTION key to move the border 3 Press ENTER when the window is the size you want Note This command is unavailable if you maximize the window Shortcut Mouse Drag the size bars at the corners or edges of the window Move command System menu This command can be used to display a four headed arrow so you can move the active window or dialog box with the arrow keys P Note This command is unavailable if you maximize the window Shortcut Keys CTRL F7 Minimize command System menu This command can be used to reduce the GCDExport wind
11. on of the CAMARC formats is supplied with the MLSviewer which allows a user to view and edit GCD and DST formatted files This is an application that has been developed by Motion Lab Systems to allow users to extract ASCII data from any number of files that use the CAMARC DST specification to store information It is intended to provide an easy way for statistitians and researchers to create ASCII files containing information extracted from GCD files for submission to any statistics program for analysis The program allows you to select a large number of GCD files that are assumed to contain gait data You can then select a single GCD file display the contents and select a single multivalue variable such as KneeFlexionExtension and any number of single value variables GCDexport will then create a single ASCII text file that contains the data formatted in columns for easy access and analysis CATUTORGCD GCDExport loj xj File View Help ARE Select Dir Print About Help FileName Size Modified 0000702 GCD 23 KB Jun 08 1999 Y 0000706 GCD 43 KB Mar 16 1999 0000704 GCD 23 KB May 08 1999 Y 0000703 GCD 23 KB Jul 11 1995 b For Help press F1 NUM 4 Figure 1 GCD Export User Interface GCDExport User Manual Introduction e 1 Installation 2 e Introduction GCDexport is supplied with the MLSviewer installation software You can use the Windows Add Rem
12. ove Programs option in Control Panel to install GCDExport from a floppy disk or CDROM If you download a copy from our ftp site on the Internet ftp emgsrus com then just run the installation file This will install the program on your system together with some example files that you can use to demonstrate and play with the program If you accept the default options during installation then you will have created a short cut in the Gait Lab menu group called MLS GCDExport together with a desktop short cut GCDExport shows the name of the registered user in the About dialog box accessed from the help drop down menu This can be opened by choosing the About command Help menu This dialog box will also show you the Version Number of the program GCDExport User Manual Using the Program The User Interface File Menu GCDExport User Manual When the Motion Lab Systems GCDExport program is started the application window will appear this window will have a list with no items in it The window will also have a menu bar tool bar and status bar The program like all MLS programs is a 32 bit Windows 95 NT application and will respond to all the normal commands to position and control the display It can be represented on the screen in one of the three ways full screen maximized as an application icon minimized or within a window restored The application remembers the state in which it was when it was last used and the size of the
13. ow to an icon Shortcut Mouse Click the minimize icon kJ on the title bar Keys ALT F9 Using the Program e 7 8 e Using the Program Maximize command System menu This command can be used to enlarge the active window to fill the available space Shortcut Mouse Click the maximize icon E on the title bar or double click the title bar Keys CTRL F10 enlarges a document window Close command System menu This command can be used to close the active window or dialog box Double clicking a Control menu box is the same as choosing the Close command Note If you have multiple windows open for a single file the Close command on the file Control menu closes only one window at a time You can close all windows at once with the Close command on the File menu Shortcuts Keys CTRL F4 closes a file window ALT F4 closes the GCDExport window or dialog box Restore command System menu This command can be used to return the active window to its size and position before you chose the Maximize or Minimize command GCDExport User Manual File Formats Overview The GCDexporter reads any number of GCD files from a single directory and allows the user to select a vector variables and a number of scalar variables that are present in the input GCD files These variables are then exported to a single ASCII file in a TAB delimited format that is designed to be easy to access from any statistics or spreadsheet program Input Files
14. resents you will a Save As dialog box to choose an output file If you choose the Cancel button in that box you will come back to this dialog box Cancel This will close the dialog box and no data will be exported Exit This command causes the GCDExport application to exit Using the Program e 3 View menu 4 e Using the Program This menu has items that can be used to control the appearance of the application and also to set the options Toolbar This command can be used to display and hide the Toolbar which includes buttons for some of the most common commands in GCDExport such as Select Directory A check mark appears next to the menu item when the Toolbar is displayed The toolbar is displayed across the top of the application window below the menu bar The toolbar provides quick mouse access to many tools used in GCDExport Select Directory command File menu 3 Export command File menu 2 About command Help menu 2 SHIFT Fl Status Bar This command can be used to display and hide the Status Bar which describes the action to be executed by the selected menu item or depressed toolbar button and a progress meter A check mark appears next to the menu item when the Status Bar is displayed at the bottom of the GCDExport window The left area of the status bar describes actions of menu items as you use the arrow keys to navigate through menus This area similarly shows messages that describe the actions of
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