"Specifying input and output files" in Introduction to INTREPID (R02)
Contents
1. Intrepid Project Manager Tool V3 0a The entry with the represents the dataset s directory that you can navigate into to find fields The entry without the represents dataset itself If you are selecting the dataset as a whole choose the entry without the This is the DIR marker file If you are selecting a field of the dataset in our illustration a field of dataset djs3 open the dataset directory to find the fields of the dataset 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 23 Library Help Top lt 4 Back gt Dataset and field names vs directories Windows A file ending in DIR and a directory with the same name but no DIR indicates a INTREPID format vector dataset in a load save dialog box Example Select Line Dataset BE Look in data x c Ei ebagoola_A 5 ebagoola_A DIR ebagoola_B ebagoola_B DIR euler_s a euler_s DIR euler_ss a euler_ss DIR polyA polyA DIR polyB a polyB DIR Fiename Files of type Data DIR z Cancel T Open as read only If you are selecting the dataset as a whole select the DIR file If you are selecting a field of the dataset in our illustration a field of dataset ebagoola_A open the dataset directory to find the fields of the dataset in our illustration with LINE marker files Many INTREPID tools now use a field selector dialog box for2. Import data to INTREPID from a wide range of file and dataset formats Export INTREPID datasets to a wide range of file and dataset formats Accessing INTREPID datasets using other software See Accessing INTREPID datasets and tools using other software in Configuring and using INTREPID R04 INTREPID access to datasets created by other software See Accessing data created by other software in Configuring and using INTREPID R04 and INTREPID direct access import and export formats R11 Using INTREPID Library Help Top You can use INTREPID interactively or in batch tasks which use prepared task specification job or hard copy specification map files In this section e The HISTORY file location project directory working directory How to start INTREPID Overview How to start INTREPID Interactive mode How to start INTREPID Batch mode INTREPID tools commands and modes of operation Geosoft Oasis montaj access to INTREPID tools The INTREPID graphic user interface Specifying input and output files e Pixellation and zoomed in grids 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 11 Library Help Top lt 4 Back gt The HISTORY file location project directory working directory You need to read all three of the following sections to see how the three elements fit together Location of the HISTORY file Each project directory h
3. Library Help Top The Project Manager in batch mode e Has more sophisticated batch processing capabilities than individual tools Can recognise and process task specification files for all tools Has automatic task progress reporting under Windows See Configuring and using INTREPID R04 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 13 Library Help Top lt 4 Back gt How to start INT REPID Interactive mode You can launch INTREPID tools in interactive mode independently or through the Project Manager module The Project Manager enables you to perform file management tasks select working directories and launch the INTREPID tools from a menu bar Once you have launched a tool you can interactively specify the task you wish it to perform or load a prepared task specification job file You can also launch a tool and automatically load a job file with it gt gt To launch the Project Manager Use the command jfmanager exe or choose the INTREPID icon or menu option The method you use depends on your version of INTREPID and the way you have it set up on your menu or applications launch screen See INTREPID Project Manager T02 for detailed instructions gt gt To launch INTREPID tools from the Project Manager 1 Set the working directory you require for your process see Selecting datasets and files in INTREPID Project Manager T02 2 Ifrequir
4. For example To perform gridding using the task specification file ebag123 job use the command gridding exe batch ebagl123 job To print hard copy specified by the file ebagoola_mag1 map use the command mapprint exe batch ebagoola_magl map gt gt To launch INTREPID tools interactively from the Project Manager to execute in batch mode using a task or hard copy specification job or map file 1 Launch the Project Manager see INTREPID Project Manager T02 for detailed instructions 2 Locate and select the job or map file see Selecting datasets and files in INTREPID Project Manager T02 3 From the shortcut menu right click the file select Launch batch process Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 15 Library Help Top 4 Back gt gt gt To launch a batch task by command using the Project Manager Note To do this you need to have added the INTREPID install path to the PATH environment variable in your operating system or shell See Including the INTREPID installation folder in PATH in INTREPID system parameters and install cfg R07 Set the working directory that you require for the process Type the command for the Project Manager including the batch switch and the name of the prepared task specification job file Task specification files used in this way may contain more than one task and may use more than one I
5. gt How to start INTREPID Batch mode You can launch a batch task using an INTREPID tool by typing the command line for the tool with the batch switch and the name of the prepared task or hard copy specification job or map file You can also launch tasks batch using the Project Manager interactively or using the jfmanager exe command If you use the Project Manager you can combine a number of tasks into a single task specification job file These tasks can use different INTREPID tools as required by you The Project Manager performs the tasks one after the other as they appear in the task specification job file The Print Hard Copy tool is the only tool which accepts map files in batch mode The Project Manager automatically creates a task progress report when it executes batch tasks Under Windows if you execute a batch task using an individual tool you must add the switch ntout to the command line to obtain progress reporting See Diagnostic reporting options in Configuring and using INTREPID R04 for further details gt gt To launch a batch task by command using an individual INTREPID tool Set the working directory that you require for the process Type the name of the main executable file for the tool as a command including the batch switch and the name of the prepared task or hard copy specification job or map file In this case a job file may only specify a single task for the tool you are using
6. notation In this manual the notation SINTREPID_MEMORY means the value of the system parameter or environment variable INTREPID_MEMORY You can generally use this notation with system parameters and environment variables in general There is one exception to this rule See INTREPID system parameters and install cfg R07 for a full description of INTREPID s system parameters and environment variables INTREPID with different platforms Library Help Top A significant feature of INTREPID is that you can seamlessly access all data and procedures from any platform on which INTREPID can run There are some minor differences between INTREPID s operation under LINUX UNIX and under Windows If you are accessing INTREPID data with both platforms you will need to attend to some of these differences See Accessing INTREPID data from both UNIX and Windows in Configuring and using INTREPID R04 for more information We handle the swapping of the byte order dynamically 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 8 Library Help Top 4 Back gt INTREPID datasets and file structure Dataset types Library Help Top INTREPID stores all data in the standard INTREPID dataset format The following section describes the basic features of INTREPID datasets See INTREPID database file and data structures R05 for further more information There are four types of INTRE
7. Euler WormE and Naudy methods Extensions to 3D surfaces and objects now also there Library Help Top 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 3 Library Help Top lt 4 Back gt Processing your survey data The INTREPID Geophysical Data Processing tools prepare and grid data from several remote sensing techniques Among the most important for mapping are e Aeromagnetic surveys Gravity amp Gravity gradiometry surveys e Radiometric surveys e Electromagnetic surveys e Digital terrain surveys Seismic data as a time series vertically along a profile INTREPID can prepare the raw survey data grid it and produce high quality images The ability to process large datasets and splice a number of surveys is one of INTREPID s specialties Geomodeller compatibility Intrepid is transitioning to be fully compliant 3D geolocated software tools maintaining and supporting close links to Geomodeller 3D The shared systems between the two environments ensures strong inter operability with many of the specialist geophysical operations available in Intrepid but ultimately preparing data suitable for creating and aiding the geology model creation portion of Geomodeller Likewise most of the geophysical operations required within the geomodeller tool are spawned Intrepid processes INTREPID requirements and conventions INTREPID programming and portability We
8. have written INTREPID in C using the InterViews graphical user interface Inter Views is based on X Window System version 11 release 5 Microsoft Foundation classes and WIN382S It is portable to all UNIX workstations that support X Window System and Windows The INTREPID user interface has Motif style and Windows style windows We are currently developing Java applications that build on the existing code base A common data modelling language is being rolled out with Geomodeller V2012 and Intrepid V5 0 that is based upon us publishing all message processes and primary data and options for every tool in the GOOGLE protobuf format All job files move to this new syntax so there is a common the binding between Intrepid and Geomodeller This published interface allows acces to power users in Python C Java etc We are also making the transition to multi processor enabled code Equipment required INTREPID supports both 8 and 24 bit graphics You can use INTREPID on any LINUX and Sun workstations and on computers Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 4 Library Help Top lt 4 Back gt running Windows XP Vista Windows7 amp 8 INTREPID requires a minimum of 500 Mb and preferably 2 GigaBytes or more of memory The Windows version requires approximately 10 Mb disc space for the software Demonstration and Guided Tour data can add significantly
9. loading fields shown on the right Select Signal Field Select Z 21x File name Files of type Data LINE x Cancel T Open as read only Load Open or Save button When you have selected the directory and file name required choose Load Open or Save INTREPID will note the file s name for use with the current application then close the file selection dialog box Depending on the application INTREPID may also Open the file and examine its contents if it is an input file Display some data from the file if it is an input file Save the files if it is an output file e Automatically display the next required file selection dialog box if you are specifying vector data and need to specify separate X Y Z and other component files Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 24 Library Help Top 4 Back gt Pixellation and zoomed in grids If you are viewing a grid dataset and zoom in the view so that only a few cells are visible INTREPID can still display the grid with continuous colour or grey shades rather than showing the whole of each individual cell with its corresponding colour or shade This is also true for tensor grids as we use dynamic interpolation in all instances Continuous colour or grey scale display will provide you with a superior grid for judging trends in the data If the whole of each cel
10. that you launched the tool This applies both for command line operation and within the Project Manager We call this the working directory Whenever you attempt to load or save a file or dataset INTREPID will generally display the contents of the working directory in the load or save dialog box Under UNIX the Path text box in load and save dialog boxes will show the path of the directory currently listed either relative to the working directory or in full depending on the tool you are using e When you launch an INTREPID tool INTREPID will search up the directory tree from the working directory to establish whether this directory is part of an existing project If it finds a HISTORY file it uses this If it does not find a HISTORY file it establishes the working directory as a new project and creates a HISTORY file in it Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 12 Library Help Top 4 Back gt How to start INTREPID Overview See also How to start INTREPID Interactive mode How to start INTREPID Batch mode Geosoft Oasis montaj access to INTREPID tools gt gt To start INTREPID for an interactive session Type the command jfmanager exe Under Windows you can use the INTREPID Project Manager shortcut You can use INTREPID tools interactively alone or through the Project Manager You can also execute them as batch tasks Tas
11. to this up to 200 Mb Units of measure Library Help Top INTREPID allows you to use any distance unit that you wish with projected data You should prepare and input data in the unit required usually metres For data with geographical coordinates the distance unit is fractional degrees In general INTREPID will automatically convert geographical coordinates imported or specified with colons separating degrees minutes and seconds the format d m s e g 143 34 01 24 for 143 34 1 24 will be stored as 143 56701 Contact our technical support service if you need assistance with data in this format INTREPID maintains the distance unit throughout its operations For example if you input data in metres INTREPID will output data in metres 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 5 Library Help Top 4 Back gt Notation and language in this manual Library Help Top Fonts and styles We show the names of files the text of commands and the contents of ASCII files associated with INTREPID in monospaced font We show the names of system parameters and environment variables in capitals e g INTREPIDBIN We show values of system parameters or environment variables in monospaced font for example 1024 Inthe text of a code file for example in task specification job files we specify that the value of a system parameter or environm
12. z Cancel T Open as read only Ok Cancel gt gt To specify a file for loading or saving 1 Choose Load Open or SaveAs or other required option from the File menu or other place in the tool 2 Navigate to the directory that contains or is to contain the files in the normal way for Windows Open and Save As dialog boxes This step does not apply if INTREPID displays a field selector dialog box 3 Ifyou are loading a file and its name shows in the list box double click its name to select it or click then press RETURN If you are saving a file when you have selected the correct target directory type the name of the file in the Save As text box or select an existing file if you are overwriting it 4 Choose Load Open or Save The Directory Contents list box and Path text box UNIX When you first display a Load or Save dialog box INTREPID displays the contents of the working directory set before you launched the tool INTREPID displays the directory contents in a list box You can navigate through the directory tree and display the contents of other directories in the list box The Directory Contents list box contains A list of the available files in the current directory if any filtered by the current mask See Marker file endings and Masks below A list of the subdirectories of the current directory if any shown with a slash following e g EBA_GRAV in the illustration and The notation representi
13. Filtering Radiometrics Interpretation Utility File filter Current Dire Navigation D intrepid tutorials data2 User Interface 3 Batching Curent Selection lebags st Data maintenance When you request help INTREPID displays the Help information in a window You can use the scroll bars provided for browsing Specifying input and output files Library Help Top Most of the INTREPID tools involve require you to load an input file and save an output file INTREPID provides a standard procedure and set of dialog boxes to assist you to load and save files This section of the manual describes the standard procedure for specifying files for loading and saving After you specify a file INTREPID will record it for use with the current application If the file is an input file INTREPID may open it and examine its contents and or display some data from it depending on the circumstances 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 19 Library Help Top Library Help Top 4 Back gt If you are specifying vector data you may need to specify separate X Y Z and other component files In this case INTREPID will automatically display the next required file selection dialog box You can usually avoid this sequence of dialog boxes by having aliases properly configured in the INTREPID standard information isi file In some INTREPID applications you may need to
14. INTREPID User Manual Introduction to INTREPID R02 1 Library Help Top lt 4 Back gt Introduction to INTREPID R02 Top INTREPID overview INTREPID is a geophysical processing isualisation and hard copy printing tool It can assist you to process analyse interpret display and print geographically located data It is fully integrated with a consistent graphic user interface You can use it in both batch and interactive modes Using INTREPID you can Import data from binary ASCII ASCII database and other industry standard file formats Directly process Geosoft ERMapper NetCDF ZYCOR EDI and Oracle data Low level driver support for SEGY including thumbnail previews is also now added 3D grids voxets and surfaces DXF etc are also progressively added to the low level drivers and elementary editing support is available in the editors Export data in binary ASCII ASCII database and other industry standard tape or file formats Convert data between datums and projections INTREPID supports all common worldwide datums and projections Integrate data that have different datums and projections Use user definable datums and projections Edit data graphically in time or space or in a spreadsheet Editing facilities include search and replace ramping eliminating sudden changes near edited data creating new fields with values calculated from other fields Display statistics and histog
15. NTREPID tool For example to execute the task specification file ebag123 job use the command fmanager exe batch ebag1l23 job Note The command is fmanager exe not jfmanager exe INTREPID tools commands and modes of operation There are differences between INTREPID tools in their possible modes of operation Some INTREPID tools do not offer all of the following Interactive mode operation Loading task or hard copy specification files in interactive mode job files are used except for Mapcomp and Mapprint which use map files e Batch mode operation Updating HISTORY files audit trails to record operations i e most tools leave a process record in the project s HISTORY file Geosoft Oasis montaj access to INTREPID tools Library Help Top See also Accessing INTREPID datasets and tools using other software in Configuring and using INTREPID R04 gt gt To use INTREPID tools from within an Oasis montaj session 1 Copy the contents of the install_path Oasis OMN directory to your local OMN directory where instal1_path is the location of your INTREPID installation 2 In Oasis go to the GX Load menu and choose the Intrepid option 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 16 Library Help Top 4 Back gt The INTREPID graphic user interface Library Help Top INTREPID operates under a conventional graphic user interface Mo
16. PID dataset Dataset type Description Grid rows and columns of cells Vector Point sets of data points Line sets of data points along traverse lines Polygon sets of points for defining regions of interest INTREPID datasets consist of one or more files Grid datasets have all data in a single file with a number of auxiliary files the provide information about the grid Vector Point Line and Polygon datasets have a separate file for each field a field file e g separate files for the X Y and Z data An index file synchronises the data in these files INTREPID stores all of the field files for a vector dataset in a single dataset directory Multiband datasets INTREPID can create and use multiband data where each grid cell or data point Z field can have several values Multiband Grid datasets normally use a Band Interleaved by Line format INTREPID can also use Band Interleaved by Pixel grid datasets Point and Line datasets can also have multiband fields See INTREPID database file and data structures R05 for full details of multiband dataset structures Aliases in the INTREPID standard information isi file You may wish to use a variety of file names for the fields and have several versions of some fields e g uncorrected and corrected X and Y data If you have several X fields for example INTREPID needs to know which X field is the one you wish to use The INTREPID standard in
17. TREPID uses a wildcard mask to display only file types relevant to the operation For example if you are seeking a vector dataset INTREPID can use the mask DIR For a field of a line dataset it can use the mask LINE Notes Since INTREPID can process data in other formats it includes the file extensions of these formats in the mask For example a general vector dataset mask would be DIR gdb jdbc shp Most INTREPID tools now display a field chooser dialog box for selecting fields rather than an Open dialog box with a mask INTREPID versions before 3 7 used the GRID extension to identify a grid dataset instead of ers See File Masks in INTREPID database file and data structures R05 for a list of masks 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 22 Library Help Top Library Help Top 4 Back gt Vector dataset and field names vs directories UNIX When you are using INTREPID under UNIX some input output dialog boxes have a single list box This box shows some or all of the contents of a directory depending on the mask that is operating This contains both the names of the target files or datasets and the names of subdirectories and representing the parent directory If you are specifying an input or output dataset the directory you are viewing contains a vector dataset you may see two entries for the dataset in the list box
18. a being examined or processed Data display area contains a graphic display of the data being processed or examined Status area contains information about the progress of the task It may also contain other information about the data being examined or processed Apply button For tools other than editors after you specify the input and output files and parameters for a task you choose the Apply button to execute the task Window menu Show button If you choose Report from the Window menu or choose the Show button INTREPID displays the report window Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 18 Library Help Top 4 Back gt Report window This contains a list of the settings you have specified for the task It is in fact a copy of the task specification file that INTREPID would use for the current task Some tools have this report data in the main window Specifying groups of parameters in dialog boxes Sometimes INTREPID requires you to specify a group of parameters in a single text box in a dialog box You should enter or edit the parameters so that you separate each pair of parameters by one or more spaces Here is an example pare Sy Pres pay pupae eee Help At any stage while you are using INTREPID you can obtain on screen help using the Help menu provided in each tool s window File Editors Levelling Grid Display Printing
19. as a history file called HISTORY that contains a record of all processes that you have carried out on its datasets You can use the history file as an audit trail for your operations or as a source of text for constructing task specification files See INTREPID task specification job files R06 for information about using these files See also HISTORY files Project directory When you first start using INTREPID somewhere in your directory tree INTREPID establishes the working directory as a project directory and creates a HISTORY file init From this point onward INTREPID uses this HISTORY file whenever the working directory is the project directory or a subdirectory of the project directory If the working directory is not part of a project INTREPID will establish it as a new project Note It is possible to accidentally create a project within a project You can do this if you launch an INTREPID tool with a working directory that is the parent of a project directory To avoid confusion we suggest that you avoid this practice If you do it accidentally simply delete or rename the files called HISTORY and ProjectiInfo in the directory that is not meant to be a project directory See Projects file and directory structure in INTREPID database file and data structures R05 for an example of the project directory Working directory Whenever you use an INTREPID tool INTREPID uses the default directory that you set at the time
20. auxiliary files INTREPID uses a system of auxiliary files for various purposes such as defining specifications and setting parameters These are ASCII text files with a standard syntax consisting of Begin End blocks enclosing keyword value declarations See INTREPID Auxiliary files in INTREPID database file and data structures R05 Task and hard copy specification and utstory files Library Help Top Task specification job task files Task specification files are text files containing the specifications for tasks to be performed by INTREPID tools These files have names that end in job or soon task They are ASCII text files with the standard INTREPID Begin End block syntax See INTREPID Auxiliary files in INTREPID database file and data structures R05 for a description of the syntax You can create a task specification file using Save Options from the File menu in most INTREPID tools Directly editing a task specification file to adjust settings before repeating a process may be more convenient than using the INTREPID tool s graphic user interface Here is an example of a task specification file Process Begin Name ProjConvert Parameters Begin ToProj TMAMG51 ToDatum AGD66 OutputMesh 300 00 Angle 0 0000000 Parameters End InputImage mag_568 OutputImage mag_568_AMG51 Process End See INTREPID task specification job files R06 for general information about these files For a discus
21. d all new tools are being developed with this technology The Jetstream geophysical Data webApp system is a hybrid of technologies constanly envolving to meet the changing expectations and also adapting to emerging new opprotunities The ArcView MapInfo and ERMapper Lynx products are all JAVA Some support for foreign languages is available in the new JAVA tools French Italian Spanish Russian are progressively supported Change locale to Fr It Es etc 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 25 Library Help Top lt 4 Back gt Dynamic Link Libraries and static versions INTREPID includes over 80 Dynamic Link Libraries DLL It is our normal policy to distribute INTREPID tools dependent on the DLLs In working closely with customers or for bug fixes that are required quickly we supply static versions of these programs These do not depend on the Dynamic Link Libraries but have all dependent code embedded in the executable The program files are 4 or 5 times larger Summary of INTREPID tools See the Tools menu guide R03 for lists of INTREPID tools Frequently asked questions Q You say that INTREPID provides JDBC write support Just what does this mean JDBC stands for Java Data Base Connectivity JDBC is a standard for a set of java routines that access databases such as Oracle and MS Access By providing this support INTREPID is able to access oth
22. ed select the dataset to be processed see Selecting datasets and files in INTREPID Project Manager T02 3 Choose the tool you require from the corresponding Project Manager menu see Launching INTREPID tools and processes in INTREPID Project Manager T02 gt gt To launch INTREPID tools independently of the Project Manager Note To do this you need to have added the INTREPID install path to the PATH environment variable in your operating system or shell See Including the INTREPID installation folder in PATH in INTREPID system parameters and install cfg R07 Set the working directory you require for your process then type the name of the main executable file for the tool as a command e g fedit exe for the Flight Path Editor tool If you have a prepared task or hard copy specification job or map file for the task add the input switch and the name of the job or map file to the command line Task specification files used for interactive launch in this way may only contain a single task If the job file contains the correct specifications for your task simply choose Apply in the tool s main window For example fedit exe input serv job 1 You can choose Processing from the Visualisation Tools Launch window to start the Project Manager UNIX only Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 14 Library Help Top lt 4 Back
23. ent variable should be substituted by using the notation for example INTREPIDDATA We show language and notation specification in monospaced font italics e g You must specify a function as name argument X Y Signal or Z and Height data In this manual we frequently refer to X Y and Z data We also refer to vertical position in various ways X and Y data is the location data consisting respectively of Easting and Northing or Longitude and Latitude data Signal data or Z data is the data that has been recorded or interpolated for the location specified by X and Y e g magnetic radiometric gravity Thus each point in a dataset will normally have only one X and Y value but may have a large number of Signal or Z values The use of Z to describe vertical location is a source of confusion in geophysics For example GPS height is referred to as Z and the vertical derivative is referred to as dM dZ In this reference manual we will use the terms clearance height and altitude to refer to vertical location If a situation arises where we need to describe someone else s use of Z for vertical location data we will clarify it and set out a method of avoiding confusion 1 If you maintain X and Y in different datums or projections or correct the X and Y data to make its location more accurate a point may have two or more sets of X and Y data Only one set can be the official set at any time The field names of the official c
24. er proprietary databases as well as INTREPID s own database format See Direct access to relational databases R16 Library Help Top 2012 Intrepid Geophysics lt 4 Back gt
25. formation isi file contains a list of the roles in the vector dataset and the name of the field that is playing each role Each role has an alias which INTREPID uses to refer to the field concerned The common aliases are X Y location LineNumber Line Type Fiducial and FlightNumber See Vector dataset field aliases in INTREPID database file and data structures R05 for further details 1 INTREPID previously stored polygon datasets together in files called AREA We have discontinued this practice If you have polygon datasets with this old format we suggest that you convert them using the Convert Polygon utility Choose Convert Polygon from the Utility menu in the Project Manager 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 9 Library Help Top 4 Back gt Data precision and null values See INTREPID database file and data structures R05 for a full description of the data precisions available under INTREPID If data is missing from a dataset its place must usually still exist in order to maintain integrity of the data INTREPID assigns null a special value to the missing data See INTREPID database file and data structures R05 for a list of the value of null for each data type File names for INTREPID data For information about rules for filenames in INTREPID see INTREPID file names in INTREPID database file and data structures R05 INTREPID
26. k or Hard Copy specification job or map files provide specifications for batch tasks or initial sets of options for interactive sessions You can use most INTREPID tools with task specification job files in interactive or batch mode Note This section refers to task specification job files The Map Composition and Print Map tools use hard copy specification map files rather than job files If you are using either of these tools with specification files you must specify map specification map files instead of job files See INTREPID task specification job files R06 and MAPCOMP Map Specification Language R20 for detailed information about these files The following table shows the methods of launching and executing INTREPID tasks with and without task specification job files Launch from Menu Launch by Command Without With job file Without With job file job file job file Interactive Use Project Use Project Manager menu Use Use command for tool Execution Manager option to launch tool command with input switch and menu option interactively then use menu for tool job file name tolaunch tool option File gt Load Options int tively P Batch pore cae Jri Project Manager Use command for tool Mode window Right click job or Project Manager Execution file and choose Launch fmanager exe with batch process batch switch and Job file name
27. l has its correct colour or shade the grid will have a pixellated tiled effect but will portray more precisely the data that you have INTREPID normally creates continuous colour and shade display using third order Newton approximation If you prefer INTREPID can use bilinear interpolation This is an early method which third order Newton approximation has replaced We recommend the default third order Newton approximation for normal use If you wish to disable continuous colour display and show the whole of each cell with its corresponding colour or shade INTREPID can use the nearest cell centroid method for determining the colour of a pixel on the screen gt gt To use third order Newton approximation for continuous colour or grey scale display Ensure that the system parameters INTREPID_BILINEAR and INTREPID_NEAREST have no value NULL gt gt To use bilinear interpolation for continuous colour or grey scale display Assign a value to the system parameter INTREPID_BILINEAR gt gt To use the nearest cell centroid method for determining pixel colour or shade Assign a value to the system parameter INTREPID_NEAREST See INTREPID system parameters and install cfg R07 for further information Java based INTREPID tools Library Help Top INTREPID requires JAVA Run Time Environment This is automatically downloaded from the CD or web installation Increasingly more of the graphical Interface is JAVA based an
28. ng the parent directory of the currently displayed directory unless the current directory is the root directory 1 Alternatively you can type the full or relative path specification for the file in the selected file display box Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 21 Library Help Top Library Help Top 4 Back gt The Path text box shows the path of the currently displayed directory either relative to the working directory or as a full path If you select a file or dataset INTREPID immediately includes its name in the Path text box Changing the currently displayed directory Under UNIX to change the currently displayed directory to its parent directory or one of its subdirectories double click the parent directory symbol or the name of the subdirectory required in the list box You can also click and press ENTER Under Windows use normal directory navigation methods INTREPID displays the contents of the new directory in the list box Marker file endings and Masks INTREPID uses marker files with special endings e g LINE PNT POLY ers to identify datasets fields or other files Under UNIX INTREPID usually hides the endings of marker files producing a simple list of names of fields or datasets Under Windows INTREPID displays the marker file endings When you are specifying input or output IN
29. oordinates are assigned to the X and Y aliases in the INTREPID standard information isi file of the dataset 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Library Help Top Introduction to INTREPID R02 6 4 Back gt Measures of height INTREPID uses a variety of vertical position measures The following table shows our conventions for naming height measurements At the time of writing we are still in the process of revising the INTREPID user interface and documentation to conform to this standard Term Usage Clearance Distance from the instrument to the ground Ground Clearance Depth Distance from the instrument to the ocean floor similar to clearance marine survey Depth Distance from the instrument to the top or edge of an inferred geological interpretation structure Height 1 Distance from the instrument to the surface of an ellipsoid We always Terrain Height indicate the datum to which the height refers For example GPS Height is the distance from the instrument to the WGS84 ellipsoid 2 Generic height We use height when it is not necessary to distinguish the vertical position measure Distance from the ground to a datum Altitude Distance from the instrument to the Geoid mean sea level Terrain Altitude Distance from the ground to the Geoid mean sea level Z We use Z for vertical position Aircraft flights ships cruises We use the
30. rams of data This includes all the emreging Tensor gradient formats Display the history of processes performed Correct and extract key channels from radiometric data Edit level filter decorrugate and microlevel your line data using special purpose line data processing tools Create grids from line or point data interpolating empty cells Subsection stitch append merge and resample line point and grid data Apply spatial convolution filters Fast Fourier Transforms and spectral domain filters to lines grids and voxets e Display point and line datasets and single and multiband grids using grey scale colour or sun angle with geographical annotation Crop pan and zoom dataset displays Adjust the colour shade range of a display by linear or histogram colour stretching Align and overlay sets of points lines and or polygons from other sources onto grids and display them using a style of your choice e Prepare and print maps containing your data with a wide range of data linked and simple annotations including your own logos etc Identify highs and lows with worm diagrams and locate incoherencies in Library Help Top 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 2 Library Help Top lt 4 Back gt magnetic grid data using the MagMage software Calculate solutions and source depth estimations for observed phenomena using
31. sion and example of task specification file format for a particular tool see the section Displaying options and using task specification files at the end of the chapter describing the tool 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 10 Library Help Top lt 4 Back gt HISTORY files Whenever you use INTREPID it records your activities in a history file The history file is an ASCII file with the name HISTORY It can act as an audit trail for your processing HISTORY has the same format as task specification files see Task specification job task files You can extract sections from it to use in task specification files or even use a whole history file for a batch task INTREPID stores the history file in a project directory See also Location of the HISTORY file e Using HISTORY to reprocess a dataset in INTREPID task specification job files R06 Hard copy specification map files If you use the Hard Copy Composition tool or MAPCOMP language you will save your work in hard copy specification files These are text files that have names ending in map See MAPCOMP Map Specification Language R20 for further information INTREPID data compatibility You can Access INTREPID datasets using a number of other software packages Use INTREPID to process Geosoft datasets in their native format e Use INTREPID to process ERMapper grid datasets
32. specify a number of parameters and options besides the input and output files When you have specified all requirements for the operation you will normally choose Apply INTREPID will then load the input file process the data and save the results in the output file In some applications INTREPID may immediately load and display input files and save output files You can specify the name of a file for input or output by choosing Open Specify input file Save as or Specify input file from the File menu inputFormat Utilities Heip Open Input File Specify Output Dataset Load Options Save Options Quit File selection dialog boxes are similar throughout the INTREPID tools They each have a title appropriate to their purpose and other variations such as their mask see below If you have already selected a dataset INTREPID usually displays a field selector dalog box for you to select the field you require The file selection boxes shown here are typical UNIX Select Signal Field q 2012 Intrepid Geophysics lt 4 Back gt INTREPID User Manual Introduction to INTREPID R02 20 Library Help Top lt 4 Back gt Windows Select Line Dataset 21x Look in J data hai j i ebagoola_A ebagoola_B euler_s ebagoola_A DIR ebagoola_B DIR euler_s DIR euler_ss DIR polyA DIR polyB DIR EAERERERERED Fiene Files of type Data t DIR
33. term flight and refer to aircraft frequently in this manual because a majority of the sensing work is aircraft based In fact you could have used a variety of craft to acquire the data For marine data such as marine gravity we use the terms cruise and ship In the current version of INTREPID documentation the various words for excursion and sensing craft are interchangeable For example you can readily use the Flight Path Editor tool to edit data from a cruise Wavelength frequency wave number These terms are all used to describe waves in data Wavelength is measured in a distance unit such as metres or kilometres Frequency strictly speaking is related to time The unit Herz for example indicates cycles per second In these manuals we set out to minimise jargon and use common language if possible We loosely use the term frequency with respect to distance e g cycles per kilometre In this context Frequency 1 Wavelength Library Help Top 2012 Intrepid Geophysics 4 Back gt INTREPID User Manual Introduction to INTREPID R02 7 Library Help Top 4 Back gt Wave number is the correct term for describing wave cycles per distance unit e g cycles per kilometre Wavenumber 1 Wavelength We have chosen to use the more colloquial term frequency since its meaning is still clear in the contexts concerned and it simplifies the text System parameter and environment variable
34. tif compliance When it is running under UNIX INTREPID uses the Motif graphic user interface system Windows compliance When it is running under Windows INTREPID complies with the standard Windows graphic user interface using Microsoft Foundation class dialog boxes We assume that you already know The concept of disc directory structure directories subdirectories parent directories the working directory etc e How to click double click and drag with the mouse How to select move and resize windows e How to recognise and use pulldown menus dialog boxes command buttons option buttons check boxes text boxes list boxes scroll bars and sliders How to select items from a list box by double clicking with the left button or clicking then pressing RETURN or choosing OK 2012 Intrepid Geophysics lt 4 Back gt Introduction to INTREPID R02 17 INTREPID User Manual lt 4 Back gt Library Help Top INTREPID tool windows Most INTREPID tools except for the new Java based tools have a standard window layout as shown in the following diagram and description Typical INTREPID tool window Title bar Menu bar Command area Data display area Status area Apply button Command area contains controls for frequently changed options and parameters to which you need ready access without the inconvenience of menus and dialog boxes It may also contain information about the dat
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