Geoida Development History

Version 4.43.14 (9 May 2007)
Bug Corrections
  • Inverse option - Terrain Distance was printed even when Height Datum was 'Arbitrary'. Fixed - Terrain Distance is now printed only if the Height Datum is Spheroidal or Geoidal/Orthometric
  • Radiations option - When the instrument station point had a valid height, a (horizontal) distance was not reduced to datum unless either the Vert Angle or Vert Comp fields had a value entered. Fixed - the Vert Angle or Vert Comp fields may now remain empty (implies Distance is horizontal)
  • Import option, Civilcad AS5 format with 'Transform imported file' ticked - transformation was not applied to last TEXT item in the file - fixed
  • Starting Geoida by file association: "Error 13 in g_gencvf" and "Authorisation invalid" when a job file was double-clicked in Windows Explorer to open in Geoida. Geoida now correctly executes and opens the job

Version 4.43.12b (21 February 2007)
Bug Corrections
  • "Error 339 ... Component 'RICHTX32.OCX' not correctly registered: file is missing or invalid" apparent in a number of options such as when attempting to display log and summary reports or selecting the Points > Import option (Windows XP computers) - corrected by uninstalling old version and reinstall v4.43.12b

Version 4.43.12 (6 September 2006)
Bug Corrections
  • Least Squares adjustment (CSD option) - Unadjusted observations were listed to the CSD file. Now correctly lists only adjusted observations

Version 4.43.11 (7 August 2006)
Enhancements/New Features
  • Definitions -> Projection - Modifications and additional settings to permit definition of most world-wide Transverse Mercator projections
Bug Corrections
  • Definitions -> Transformation - Corrections to use of tabs during editing
  • List/Export Points - For jobs set as 'Geographic' incorrect Cartesian XYZ coordinates were listed. Fixed
  • 'Geographic' jobs in northern hemisphere had incorrect False Origin for the default UTM projection - fixed
  • 'Geographic' jobs could have invalid datum selected against default projection. Now for listing of projection coordinates, the datum is as defined for the job

Version 4.43.08 (24 July 2006)
Bug Corrections
  • Least Squares adjustment - Where a 1D vertical adjustment was included with a 2D horizontal adjustment, the vertical points were listed with the provisional horizontal values and these values may have been saved to database - corrected

Version 4.43.07 (12 July 2006)
Bug Corrections
  • Survey options 'Compute' - Some edited changes to settings or data were not being used during processing or may not have been saved - fixed

Version 4.43.05 (30 June 2006)
Bug Corrections
  • Enhancements and corrections to Definitions library options
    1. Changes now saved regardless of job status
    2. Can now modify or add Transformations successfully
    3. "Invalid use of null" when saving new Spheroid corrected

Version 4.43.04 (27 June 2006)
Enhancements/New Features
  • Import - Added Tasmanian SurCoM database CSV to 'Specific' format options
  • List Points / Export in Window - New option added; lists or exports only the points falling within the selected window
  • Least Squares Network Adjustment - Summary now lists adjusted coordinates to decimal precision as defined in Job Configuration
Bug Corrections
  • Least Squares Network Adjustment
    1. "Subscript out of range" error while importing Extract file corrected
    2. Point Height saved into & replacing Description - corrected
    3. Incorrect display of geographic coordinates - fixed
    4. Resetting of geographic coordinates to zero values when editing - fixed
    5. Overflow error at "Printing report" stage of adjustment - fixed
  • Process Extracted Observations - "Bad file name or number" error while opening data file with non-standard filename corrected
  • List Points / Export option, 'Cartesian XYZ' coordinate format selected - Format disrupted if points have no heights (Cartesian XYZ coordinates require spheroidal heights) - corrected
  • Modify Point - Not setting horizontal & vertical decimals as set for job - corrected
  • Additions or changes to Definitions options while job open caused "Error 75, Path/File access error" - corrected

Version 4.42.11 (18 May 2006)
Enhancements/New Features
  • Least Squares Network Adjustment
    1. Standardised Residual, Baarda test result, Redundancy Number, MDE (Marginally Detectable Error), and Residual Offset (angles) added to the Least Squares summary
    2. Summary now orientated as Landscape when printed to accommodate new columns
    3. Clarified prompts to rescale after failure of least squares chi-squared test
  • Version of Geoida used to create a job now saved correctly
  • Job Statistics - Job database and database engine version numbers added
  • Added chord-to-arc correction for reduction of spheroidal distances over 5km
Bug Corrections
  • Least Squares Network Adjustment
    1. Centring was not being applied for Std Deviations for Angles, Directions, Azimuths
    2. Corrections made to error ellipse orientation
    3. Additional observation records more than 100 now added on pressing Enter or down-arrow keys
    4. 'Azimuth' labels in summary changed to 'Bearing' for non-geographic jobs
    5. 'Estimated Variance Factor' in summary now displays correctly in scientific format for very large values instead of '*********'
    6. Default a-priori standard deviations now not printed in summary when defaults not used
  • File Viewer (various options)
    1. Extra blank page at end of file when printed now removed
    2. Correction to font size for printing multiple copies
  • Sokkia SDR2x/33, 'All Data' setting - Processing of data file is now not halted if no traverse data is detected but continues with processing of radiations
  • "Error 75, Path/File access error" corrected when exiting Transformation Definitions after editing or adding new transformation

Version 4.42.08 (25 October 2005)
Bug Corrections
  • Least Squares Network Adjustment
    1. Observation entry - the current field's contents now do not disappear after scrolling up or down
    2. Pressing Escape while an edit field is active now simply removes the cursor from the active field and does not prompt to close the form; however the form will still prompt to close if a text field does NOT have the focus and Escape is pressed
    3. "Input errors are suspected in data - tolerances exceeded. Do you wish to continue processing?". In some cases an angle observation close to 0/360 might cause this message because the observed angle is on the opposite side of 0/360 compared to the angle computed from the provisional point coordinates. Geoida now tests and compensates for such occurrences
    4. The message "The topic does not exist. Contact your application vendor for an updated help file" is displayed if F1 is pressed for Help. Help will now load correctly on pressing F1

Version 4.42.07 (18 October 2005)
Enhancements/New Features
  • Total pages added to data entry forms with multiple pages
  • Survey data processing options (except Least Squares) - added misclose tolerance testing for re-computed points; reported in log file
  • Traverse processing options, Bowditch adjustment - Added closing angle and bearing details to summary and log
Bug Corrections
  • Least Squares adjustment - Error 91 during vertical adjustment
  • Removed "CHECK THIS ..." message during Neutral data processing
  • Un-adjusted traverse processing - Removed repeated prompts to restart a new traverse section at a fixed instrument station but with no setup change
  • Sokkia SDR option - data exported by Carlson may omit point number/ID of RO for backsight observation - now skips message advising 0 point number

Version 4.41.02 (9 June 2005)
Bug Corrections
  • Import Points - Reading a file of geographic coordinates and performing a transformation during import would import the first point successfully but all remaining would fail with invalid coord values - fixed

Version 4.41.01 (2 June 2005)
Enhancements/New Features
  • Least Squares Network Adjustment
    1. Loaded points now saved & modified locally within this option & recorded separately from points in main database
    2. Can now add new points (Add New button) and reload network points from both the main database and the Enter Points tables (Reload Points button)
    3. New button added to main toolbar for this option
  • Point numbers now 6 digits (limit 999999)

PLEASE NOTE - For full details of the enhancements to the Least Squares Network Adjustment option please consult the Geoida Help documentation under the Least Squares Network Adjustment topic (Survey Menu) at the Point Coordinates tab heading.
Bug Corrections
  • Least Squares Network Adjustment
    1. Azimuth tab now displays Grid Bearing for Grid Projection jobs and Bearing for Plane jobs, but Azimuth for Geographic jobs only
    2. Point Coordinates tab - Stopped drop-down list of points appearing when record column clicked
    3. Point Coordinates tab - When clicking in Point field, drop-down list of points would appear only every second time - corrected

Version 4.40.13 (15 April 2005)
Bug Corrections
  • "Error 380 in (Module) View::Sub PlotMain - Invalid property value" on opening an empty job; the screen continued showing the previous job. Corrected.

Version 4.40.12 (1 April 2005)
Bug Corrections
  • Job Configuration Defaults - No action when no job is open. Fixed
  • Update Library - Error 91 or Error 75 (depending on job circumstances) - fixed

Version 4.40.11 (31 March 2005)
Enhancements/New Features
  • New option Undo added. No permanent changes are made to a job until the current job is closed or changed, or Save or Exit is selected (will prompt to save if changes made and not yet saved)
  • New option Job Statistics added
  • New option Job Configuration Defaults added
  • Approximate Latitude setting added to Job Configuration to position initial window for new jobs - initial window now set according to Approx. Latitude and central meridian for Default Zone
  • Preferences option - New setting 'Keep old backups in Recycle Bin' added; job default settings moved to new Job Configuration Defaults option
  • Inverse option, Point 1 and Point 2 selection - spin-buttons removed and changed to drop-down lists of only points that exist
  • List Points - speed improved
  • Import points
    1. CSV and TXT extensions added for General format types
    2. Now recognises tab-characters as delimiters
  • Traverse option - Up, Down, Insert and Delete buttons added for improved editing of observation records
  • Least Squares Network Adjustment option - At conclusion of an adjustment run, now prompts to save or discard adjusted coordinates
  • Display of points - plotting speed improved
  • Numerous internal improvements and enhancements. Any existing jobs created by a previous version will be updated to the current version - the message "The currently-selected job is now out-of-date but will be saved with the added extension '.old' before updating to the current version" will be displayed when any job requiring the update is opened
  • New licence agreement - acceptance of the terms of the agreement is made at the time of installation; it may be viewed again at any time by selecting Help -> About Geoida -> Registration -> View Licence Agreement
Bug Corrections
  • Update Library option - Error "Item not found in this collection" when updating older version. Correct Def-UD.gld update library now supplied
  • Deleting points - "Error in CreatePtLineRelation" corrected
  • Digitise Points (Geographic mode) - Now limited to +/-90 degrees latitude and +/-180 degrees longitude
  • Now correctly detects network paths
  • Interrogate Point
    1. Delay starting - now displays a message while loading
    2. Now updates display when the interrogated point is set fixed or un-fixed or if the coordinates are changed
    3. Incorrect coords displayed after modifying points in Least Squares Network Adjustment - fixed
  • Enter Points - Points set Fixed by Interrogate Point not able to be changed by Fixed checkbox in Enter Points. Corrected.
  • Radiations - Computed lines not drawn on exit from option. Fixed

Version 4.32.07 (3 February 2005)
Bug Corrections
  • Least Squares Network Adjustment option (also other Survey menu data processing options) on pressing 'Compute' - "Error 6 in Geoida (Form) PLOT::Sub SetUp - Overflow" followed by "Error 91 - Object variable or With block variable not set" and/or "Error 55 - File already open" when point numbers greater than approx. 32000 used - corrected

Version 4.32.06 (15 November 2004)
Enhancements/New Features
  • Import, Civilcad AS5 format, Transform Imported File - Text rotation now adjusted for change in grid convergence between grids or zones
Bug Corrections
  • Licensed User - Now display '&' correctly in user name or address
  • Import - Default Zone Number now as defined in Job Properties, not as in Preferences
  • Plot Geographic - When returning from geographic display to grid coordinates display, no points may be displayed even after Zoom Bounds, Zoom Out etc until Reset (Fix) Bounds option was executed. This could occur if the currently-zoomed window in geographic mode was outside the grid zone bounds. Fixed

Version 4.32.05 (29 October 2004)
Enhancements/New Features
  • Import
    1. Re-designed selection of format types into 'General' and 'Specific' categories
    2. Added DXF format - reads POINT entities and (optionally) the point coordinates from LINE, and POLYLINE entities
    3. Specify header lines to skip ('General' formats only)
    4. Optionally omit points with zero heights
    5. Check imported points fall within project grid limits
    6. Import file may be re-written with transformed coordinates (Civilcad AS5 format)
  • Alpha-numeric Point ID Cross-Ref
    1. Added 'Re-number all (no prompt)' checkbox to permit automatic point-number allocation during processing
    2. General enhancements, eg Delete option on right mouse click, and internal checks to prevent cross-reference conflicts and errors
  • Definitions -> Projections
    1. For Project Grid type, added 'Central Scale Factor includes height correction' checkbox.
    2. In jobs defined with Project Grid projection the 'Reduce distances to Spheroid' checkbox is disabled if the height correction is included in the projection's central scale factor
  • Interrogate/Modify Point - Added 'Delete' button to interactively delete the displayed point
  • Traverse option - Added 'Description' field
  • Least Squares Network Adjustment option - "No observation data in LS data set" message expanded with items listed to check
  • List Points - Minor nomenclature changes
  • Help - FAQ (Frequently Asked Questions) added to Help menu
  • Help - Updated for consistency with current version. New or modified topics include:
    1. Control Points and Reference Bearings
    2. Traverse and Network Observations
    3. Reference Bearing Prompts
    4. Definitions Menu - Projection
    5. Import
    6. Accuracy
    7. Traverse Types
    8. Editing an Extract file
    9. Corrections Applied
  • Various internal database refinements
Bug Corrections
  • Import Points
    1. Removed N-value and Zone from list when job not spheroidal
    2. Overflow error if point number greater than 32767 - corrected
  • Errors on Zoom Bounds, Zoom Out after Zoom Bounds, etc corrected
  • Enter Points (Lat/Long) and Interrogate/Modify Point - Invalid latitude or longitude values could be entered - fixed. Values must fall within the ranges +/- 90 and +/- 180 degrees respectively
  • LS (Least Squares) Options - A change to the 'Apply unit weights (all obs)' setting was not saved unless another value was also changed - corrected
  • Least Squares Network Adjustment option
    1. If null coords are loaded for a non-existing point because of an azimuth or backsight observation, the point can now be edited to define the coordinates
    2. Reference bearings are not now displayed in the drop-down list of point numbers
    3. Loading a second Extract file with different observation types would not activate the new observations by automatically crossing the Observations Active box. Also may have appeared to ignore certain observations during processing because of this. Corrected.
  • Least squares adjustments (general)
    1. "Error 9 in (Module) LeastSqr::Sub LS_Adjust [Source: (Module) LeastSqr::Sub RelativeEllipses]" during computation of resection network when all observed points were set fixed - corrected
    2. "Error 75 .... Path/File access error" when displaying summary file (eg, using View Trav/Network Summary option in Survey menu) following the previous error - corrected
  • Select Transformation dialog - Reference bearings are not now displayed in the drop-down list of point numbers
  • Alpha-numeric Point ID Cross-Ref - Reference bearings are not now displayed with point numbers
  • Job Properties
    1. If Projection was changed from a project grid to a UTM grid the default zone was not changing to the zone number set in Preferences but was left as 0 - corrected
    2. If the Horizontal Datum or Coordinate Type was changed errors would occur when later redrawing, zooming, etc. Now gives a warning if the datum is changed & allows the user to cancel the changes if necessary, and the coordinate bounds are reviewed if the type is changed
  • Scale bar sometimes re-appears even though turned off (not ticked) in View menu - corrected
  • Zoom Point Range option
    1. When Reset (Fix) Bounds option is executed, puts a check-mark on Zoom Point Range option if first point is not 1 which then affects other options when run. Fixed
    2. Faulty setting and checking of minimum and maximum point numbers when typing in fields - corrected
  • Interpolate Geoid Values in Window
    1. Displays "Only a partial range of points is currently displayed" message - corrected in Zoom Point Range option above
    2. When a job defined as Grid Projection was displayed with View -> Plot Geographic and the selected window crossed a zone boundary, no points were interpolated although they fell within the window. Now displays a message to indicate that interpolation can be made only when the window falls within a single zone
  • Minimum/maximum point number ranges etc - problems with general setting and saving corrected

Version 4.31.08 (28 June 2004)
Bug Corrections
  • Setup - Running Geoida for the first time after a re-installation would show "Invalid installation - please register" (or similar) and all Preferences settings were reset to default values
  • List Points -> Modify - "Unsupported function" and "Subscript out-of-range" errors on clicking OK
  • Similarity transformation - Error 91 if vertical datum set as Plane/Local
  • Radiation manual entry - Could not enter a decimal value for Instrument Height
Enhancements/New Features
  • Geodetic datums NZGD49 and NZGD2000 and Similarity transformation for New Zealand added to Definitions library
  • Descriptions clarified for some transformations
  • Web site - Useful Links option added (links to sources of transformation & geoid interpolation parameters and data files)

Version 4.31.6 (30 April 2004)
Bug Corrections
  • Print Preview - "Error 438 in Geoida (Form) Megamenu::Sub mnuFileJobPrint_Click - Object doesn't support this property or method". May have occurred with older versions of Windows (eg Windows 95) - corrected. Note: This or a similar message may also occur if there is no printer installed.

Version 4.31.5 (20 April 2004)
Bug Corrections
  • Least squares Network Adjustment - Instant Help for 'Active' checkboxes was giving incorrect information
  • "Error 3163 in SaveDataPage - The field is too small to accept the amount of data you attempted to add. Try inserting or pasting less data". This error may have occurred in the following situations but has been corrected:
    1. About Geoida option Registration form - various fields
    2. Select Traverse or Select Extract File dialog box Description field (new data sets only)
    3. File menu Job Properties option - field for Geoid File (new jobs only)
    4. Definitions menu Transformations option - field for NTv2 Grid File Name (applies to new installations unless Definitions.gld replaced in older installations)
  • Traverse option Select Traverse dialog box - invalid set numbers could be created but could not be corrected or deleted without error - corrected
  • "Invalid latitude outside of range" message when zooming a geographic window containing reference bearing lines - corrected
Enhancements/New Features
  • Least squares Network Adjustment - Caption for 'Active' checkboxes changed to 'Observations Active' for clarity; caption on 'Set Defaults' buttons changed to "Set Default Std.Dev' for clarity
  • List Points - Checkbox 'Comma Delimited' added to permit comma-delimited (CSV) format for export data files; 'Zone No' checkbox relocated
  • Traverse options -
    1. Now can specify a starting reference bearing if the reference station does not exist (answer 'No' to prompt for fixed point)
    2. Traverse loops closing internally (ie onto a line already in the loop) are now detected and adjusted by Bowditch method
    3. Added angle adjustment details to Log file
    4. Adjustment mode 'None' now checks if an observed point is already defined as 'Fixed' and prompts to ask if a new section is to commence at such point; if continuing without restarting, a warning is printed in the log
  • File viewer (various options) - Edit menu (Cut/Copy/Paste etc) now available on right mouse click (registered installations only)
  • View menu Reset Bounds option renamed to 'Reset (Fix) Bounds' to suggest purpose of this option is also to correct corruption of current display parameters
  • Traverse/Network summary (least squares adjustment) - increased size of field for upper extent of Chi-Squared test range
  • Zone-to-Zone transformations added to Definitions library for all Australian MGA94 zones
  • Civilcad ASCII 5 format added to Import Points

Version 4.30.45 (8 December 2003)
Bug Corrections
  • Error 6 (overflow) in Digitise Point in job set as grid projection but when displaying geographic coordinates
Enhancements/New Features
  • Digitise Point option now inserts next available point number as default

Version 4.30.44 (28 November 2003)
Bug Corrections
  • Clicking 'X' button on title bar of file-viewer to close the window caused Geoida to "lock up"
  • Fatal error on opening some jobs in Windows NT/2000/XP
  • Depending on zoom scale, sometimes only one grid label was plotted on scale bars

Version 4.30.35 (24 November 2003)
Bug Corrections
  • Occasional message "Subtraction zero" during least squares adjustment removed
  • Least squares adjustment - after prompting to re-scale for VF=1, now doesn't prompt a second time if new VF is not exactly 1.0000
  • Print Preview displayed "Please wait while printing" message but did not print
  • Correct email account added for reporting error messages from error window
  • Transform Job option - Log file reported transformation OK but points not transformed
  • Overflow error on redraw after Transform Job and in other circumstances
  • List Points - full file name not always displayed when listing to a file
Enhancements/New Features
  • Zoom Previous disabled after plotted coord type changed (Plot Geographic)

Version 4.30.34 (12 November 2003)
Bug Corrections
  • Processing Sokkia SDR radiations data would use station coordinates from data rather than from database - fixed
  • On restarting when the Load Last Job setting is active but the last job has been removed, was not possible to Cancel out of the New Job dialog - fixed
  • Invalid property error when resizing the Geoida window with no job loaded - fixed
  • Extracted Observations and Least Squares Network Adjustment options - modified to display message if no extract files exist when Select button clicked with 'By Description' option set
Enhancements/New Features
  • Moved point and line display options in the View menu into sub-menus
  • Moved the Extracted Observations and the Least Squares Network Adjustment options in the Survey menu into the new 'Advanced Processing' sub-menu

Version 4.30.33 (21 October 2003)
Bug Corrections
  • Longer filename field in SDR, CDS and Neutral options
  • Zoom & Review Bounds options corrected for multiple zones
  • Incorrect error handling in certain situations fixed
  • Errors during processing not recorded in Log file - fixed
Enhancements/New Features
  • Manual Traverse - may now enter bearing observations by omitting 'From' field

Version 4.30.29 (12 September 2003)
Enhancements/New Features
Highlights:
  • Transformation of coordinates
  • Bilinear/bicubic interpolation of geoid values from grid file
  • Interactive observation entry & editing for least squares network adjustment
  • Geographic job coordinates
  • More data formats for Import
  • Enhanced view functions
  • Print screen display
  • Interactive library file update
In detail: The new version incorporates some major additions and enhancements, with many changes too numerous to list; some that will be of interest to the user are as follows:
  • Transformations - NTv2 grid-file, multi-parameter, zone-to-zone, block-shift and scale/rotate added for Points - Import and List Points options
  • New option Points : 'Transform Job'
  • New option 'Transformations' in Definitions menu for user-definition of transformation parameters
  • Bilinear/bicubic interpolation of geoid values from grid file (AUSGeoid) - specified in Job Configuration option
  • New option 'Least Squares' (Survey menu) for interactive loading, entry & editing of observations for least-squares network adjustment
  • Least-squares network adjustment now permits re-scaling for VF=1 even when outliers present
  • Configure job for geographic coordinates (latitude/longitude); compute points & adjust networks etc in geographic
  • For spheroidal jobs, switch between displaying grid or geographic coords
  • New option Points : 'Enter Points (Lat/Long)'
  • Right-click mouse for Zoom menu
  • Interrogate point with double-click without prior option selection
  • Zoom-In by clicking scroll-wheel or 3rd mouse button or '+' key; Zoom-Out by holding 'Ctrl' key plus scroll-wheel or 3rd button or'-' key
  • Scales added to display margins
  • Print screen display to printer (File menu, 'Print Preview' option)
  • Numerous additional data formats for the Import option
  • Enter bearings in Manual Traverse
  • Improved error handling
  • 'Update Library' option added (Definitions menu) to interactively update the Definitions library from a previous (older) installation to the latest version without overwriting existing user- defined entries
  • New 'List Definitions' option (Definitions menu) to list all Definition library entries
  • Display point descriptions, heights, geoid values or derivations on screen for easier visual identification etc
  • Sokkia SDR data - now recognises anti-clockwise horizontal angles; conversion of units to metres and degrees
  • Several backup levels for job database files for added data security
Bug Corrections
  • Least squares adjustment, re-scaling to achieve VF=1 - the new corrections were applied to the adjusted observations instead of the originals - fixed (PR, 27-2-2003)
  • Manual traverse entry & reduction - Error 9 (subscript out of range) when the previous & the following obs both have a value in the ToRL field but the current obs does not have a value in either the VA or VC fields - corrected (TL, 26-6-2003)
  • Manual traverse entry - Can't enter decimal in HI field, can't enter a description, alphas allowed in VA field - fixed (RM, 18-9-2002)
  • Corrected rounding of coordinates when editing an existing point in Interrogate Point

Version 4.20.70 (5 December 2002)
Bug Corrections
  • Fixed crashing with 'Runtime error 50003; Unexpected error" on selecting Preferences option in version 4.20.51 or subsequent updates; also other possibly similar errors on selecting Licence Details in the About option
Enhancements/New Features
  • Completely new installation wizard for a more simplified, user-friendly and attractive interface for both setup and removal

Version 4.20.53 (27 Sept 2002)
Bug Corrections
  • SDR scale factor applied twice to radiation observations (no effect if SF = 1.00000, otherwise minimal for short lines) - corrected
  • Character filtering corrected in Manual Traverse data entry fields - did not allow correct entry in some fields

Version 4.20.52 (1 August 2002)
Bug Corrections
  • Traverse section closing onto one fixed point only and continuing to a new point would prompt for coords of the new point as though it should be a fixed control point - corrected

Version 4.20.51 (28 May 2002)
Bug Corrections
  • Fixed incorrect conversion of neutral file vertical angles in Civilcad Neutral option
  • Stadia & Neutral options
    1. Corrected application of horizontal & vertical collimation
    2. Corrected conversion of vertical angles when not indexed at zenith
  • Removed prompting for alpha-numeric point ID cross-reference during SDR33 set data analysis

Version 4.20.49 (18 January 2002)
Bug Corrections
  • Windows NT4/2000 installations - Corrected errors associated with "Error 32003 in RegisterFileType [Source: SetRegString]. RegCreateKeyEx failed!" message when logged in to a normal user account. Geoida must be installed and executed at least once with (Local) Administrator rights before use in a normal user account - Error 32003 may still appear if this procedure is not followed. Does not affect Windows 95/98 installations
  • Corrections to creation of new directory

Version 4.20.12 (10 December 2001)
New Feature Highlights
  • Preferences option - tabs and new settings added including least squares defaults
  • Least Squares - new window added to Survey options for all least squares settings
  • New Backsight reference bearing window - define the bearing to use if RO is missing (also replaces repeating prompts during data processing)
  • Missing control points may now be entered 'on-the-fly' during data processing
  • New 'Measure' option
  • Automatic backup of job database
Please refer below for full details of all new features and bug corrections

Bug Corrections
  • Toolbar now displays small button size for screen resolutions greater than 1024 x 768
  • Instant Help font changed so that messages are readable at all screen resolutions
  • Corrected error on cancelling of print dialog and printing of Registration form when Close button clicked
  • Vertical least-squares network adjustment
    1. Now continues to process vertical observations even if the network points have no horizontal coordinates defined
    2. Now uses any recorded horizontal distances to compute vertical adjustment class
    3. Now prints fixed and unfixed points when no horizontal coordinate values are defined
  • Observation extraction (Civilcad neutral and CDS stadia files) - fixed errors where not correctly reducing Face 2 observations to Face 1 when the vertical angle was greater than 180; also corrected the application of the zero setting for these observations if the Face for backsight observation was unknown (no vertical angle recorded - Face 1 assumed)
  • Corrected display of prompt panel in status bar - was not displayed correctly when window maximised
  • Corrected abbreviation of long filename paths in some windows where applicable
  • Corrected 'Error 6 in PlotMain - Overflow' which could occur if new points were digitised in a new job and the job was immediately changed to another
  • Preferences, default Text Editor (Wordpad.exe) - corrected for Windows NT/2000 installations

Enhancements/New Features
  • Preferences option - sections categorised by tabs and new settings added - now includes default settings for least squares adjustments and prompt mode for missing control points
  • Standard Deviation fields - these have been removed from Traverse and data processing forms and replaced with the LS Options button which opens a new window to specify the standard deviation values and other settings for Least Squares adjustments - these settings are now retained specifically for each particular option in use
  • Automatic backup - When a job is opened, makes a backup copy of the database retaining up to two older backups. (Note - the File~Repair Job option also makes a backup of any selected job)
  • List Points - can now select or modify the path and filename for output file
  • Screen graphics display
    1. <Escape> stops further plotting to screen during refresh, pan, zoom, etc
    2. Progress bar shown while displaying points and lines, reviewing bounds etc (may not be apparent except in jobs with large numbers of points)
  • Prompts previously appearing repeatedly during processing for definition of angle or bearing mode and back-bearing treatment have now been removed and replaced by the 'Backsight reference bearing' window - see next (P Read, Sept 2001)
  • Backsight reference bearing window - this new window is displayed during processing if a named backsight reference point does not exist. The user may choose to either (i) use the reference bearing as read from the data, (ii) specify a bearing to use, or (iii) enter the details of the missing point so that Geoida can compute the required bearing
  • Missing control points may now be entered as required without interruption to processing of data
  • Prompt for details of a missing point during processing now user-definable (in Preferences) as either single point entry (as for earlier versions) or multiple point entry using the Enter Points window
  • Fixed points - It is not now necessary to set control points 'fixed' for radiation or traverse processing. HOWEVER, since un-fixed control points may be re-calculated by subsequent observations, closure errors may result; setting all control points to FIXED is recommended
  • Added Measure option - click a position and move the mouse for a dynamic display of the bearing and distance; if close enough to snap to an existing point and a second point is snapped, opens the Inverse window from which a report may be compiled for all point pairs selected
  • View Inverse Report option added to Points menu (disabled if no file to display)
  • View Processing Log and View Traverse/Network Summary options added to Survey menu (disabled if no files to display)
  • During extraction of traverse route observations and writing to Extract file (None and Bowditch adjustment modes), rearranges observations if necessary so that traverse route is continuous as much as possible without breaks due to out-of-order side-shots
  • Close Current Job option added (K Waters)
  • History option now displays in HTML format (if available)
  • Evaluation version - point number limit raised to 9999 and can now create list files of points
  • About window - links for email message and Geoida web page added
  • Line type for any line adjusted by least squares now removed if the same lines are re-computed using a subsequent None or Bowditch traverse option (ie the reliability is devalued)
  • Internal enhancements to database retrieval and asssignment of data with significant performance improvements to point/line display, deletion & listing
  • Full long path and job name now displayed in Geoida titlebar
  • Display of cursor coordinates now activates for first point in job
  • Font settings modified for improved clarity in some data entry windows
  • File View window - improved horizontal scroll bar function
  • Improved window icons
  • Minor visual enhancements

Coming soon
  • Transformations
  • Geoid & deflection interpolations from grid data
  • Extracted observations editing and least squares network observations entry

Version 4.12.05 (25 June 2001)
Bug Corrections
  • Now can modify points with heights but no horizontal coordinates specified
  • CDS Stadia option, stadia file from data entered manually in CDS - corrected apparent locking up at last record
  • Least squares network adjustment - corrected error after 'insufficient rank' message for horizontal adjustment when only vertical adjustment required
  • Radiations option - fixed incorrect back-bearing for a new setup; a previous setup which used a back-bearing computed from specified points could cause an incorrect back-bearing to be used at the following setup in some situations
  • View File option - corrected error when displaying a file containing long lines when the display window was already maximised

Enhancements/New Features
  • Sokkia SDR33 alpha-numeric point ID data format added
  • Added SDR 'GPS' record type 24 (latitude/longitude point location)
  • Relaxed restriction on reduction of data when no fixed points specified - depending on option, control observations may be written to Extract file and unadjusted traverses may be run

Coming soon
  • Extracted observations editing and expansion to 3D Least squares
  • Geoid & deflection interpolations from grid data
  • Transformations

Version 4.11.01 (8 June 2001)
Bug Corrections
  • Program date corrected in About option (Windows 2000)
  • Import - When alpha-numeric point ID is found and prompts for point number to assign, Cancel now cancels the reading of the file
  • Import - Point numbers with leading zeros now not treated as alpha-numeric IDs
  • Alpha-numeric Point ID X-ref - Column sorting corrected when more points listed than rows displayed
  • List Points ~ Modify - Fixed occasional incorrect display of latitude when editing point details
  • List Points ~ Modify - Fixed blank height when point edited in latitude/longitude mode
  • Least squares adjustment summary - fixed listing of 'Computed Std. Dev' of observations (was showing standard deviation of residuals)
  • Least squares adjustment summary - if re-scaling by variance factor was applied, was listing incorrectly scaled values for point error ellipses. Fixed

Enhancements/New Features
  • List Points - New options to include/exclude headers and zone numbers in Export files
  • Import - Edit button added in View File
  • SP1 class testing added for vertical least squares adjustment

Coming soon
  • Sokkia SDR33 alpha-numeric point ID data format
  • Extracted observations editing and expansion to 3D Least squares
  • Geoid & deflection interpolations from grid data

Version 4.10.13 (10 May 2001)
Bug Corrections
  • Instant Help added for new LS Options button (Survey menu options)
  • Improvements to toolbar button images (especially Win NT & 2000)
  • Least-squares adjustment of level survey - corrected trapping "rank deficient" condition when no horizontal observations present, etc (Ricky Catlin)

Enhancements/New Features
  • Main window now sizeable
  • Toolbar now wrappable
  • Terminology - 'Traverse Observations (TOB)' file now called 'Geoida Extract' file; option in Survey menu changed to 'Extracted observations'
  • Least squares adjustment report - changed display of very small statistics values appearing as "0.000" to scientific format (eg 1.67E-04")

Version 4.10.10 (19 April 2001)
Bug Corrections
  • Partial obscuring of status bar corrected
  • Corrected data path when starting by executing .gdb database file
  • Slow response to zoom window & pan prompts etc in Windows 2000 corrected
  • Validation code for registered installations (Windows 2000) - no longer have to re-enter for every start-up (J. Hall, March 2001)

Version 4.10.07 (April 2001)
Bug Corrections
  • Clash between identical path and jobname corrected (P Read, Oct 2000)
  • Delete Window - surrounding points & lines now remain displayed
  • Display of toolbar button icons corrected in Windows NT
  • Form Geoid - error corrected
  • Traverse Obs File option - Corrections to display of Instant Help after processing
  • TOB files - correction to selection and updating of TOB descriptions
  • Status bar - corrected display when job is PLANE
  • Now checks for invalid coord range to plot or display points
  • Use of Tab key in some data entry screens would change radio buttons (J Hall) - fixed
  • Import option - point descriptions may now have embedded spaces
  • Library database file extensions changed to .gld

Enhancements/New Features
  • CDS Stadia file processing added
  • Civilcad Neutral file processing added
  • Alpha-Numeric point ID cross-reference added to Sokkia SDR, CDS Stadia, Civilcad Neutral and Import options
  • New Points menu option 'AlphaNumeric ID Cross Ref'
  • Compilation of total station and manual traverse/network data - many corrections and improvements including:
    • Converts Face 2 horizontal and vertical observations to Face 1
    • Now can select to mean observations or not
    • Observation sets recorded at the same station & with the same backsight but at different positions in the data, now not meaned if non-consecutive
    • Sokkia SDR - can choose to read all MC sets at one setup or the last only
    • Traverse Obs File option - Can now choose to mean observations in any TOB file from Sokkia SDR, CDS Stadia, Civilcad Neutral or manual Traverse options, before final processing
    • Refer to Help title 'Traverse Observations (TOB) file' for full details
  • TOB file - Azimuth/bearing and direction observations can now be defined (see Help title 'Sample TOB file' for full details)
  • Least Squares network adjustment:
    • Directions and Azimuths added to observation types adjusted
    • 'LS Options' button added for definition of various adjustment parameters
    • Now prompts to store or reject adjusted points if not converged
  • Geoida job database filetype registered in Windows - now may start Geoida and open a job by double-clicking a job database file in any list of files
  • File View window now retains size selected (eg viewing Traverse Summary and Log files)
  • Now checks for zone change in Least-Squares Network adjustment
  • Sokkia SDR option now also extracts MC observations collected with the Topo program (means of Face1/Face2 readings)

Coming soon
  • Observations (TOB) editing and 3D Least squares
  • Transformations
  • Geoid interpolations from grid data

Version 4.00.42 (October 2000)
Bug Corrections
  • List Jobs - 'Invalid password' error if try to list jobs in Geoida directory was not a bug - InstHelp.gdb and Definitions.gdb are not Geoida job databases
  • Improved error handling for open-database errors
  • Corrected 'subscript out of range' errors & error handling for Instant Help when returning to a previously-opened form
  • Corrected 'No current record' error when storing lines in Survey options & turning lines on & off in View menu (could be corrected by Repair Job)

Enhancements/New Features
  • Toolbar added
  • Inverse option moved to Points menu & Conversions menu removed
  • Added selection for Fixed Points in Delete Points & Delete Window options

Version 4.00.40 (August 2000)
Bug Corrections
  • History option now disabled if already displayed (corrects 'Subscript out of range' error)
  • 'Unable to complete process ...' errors in NT4 evaluation version corrected
  • Striped icon in Windows NT4 corrected

Enhancements/New Features
  • Control buttons added to titlebars of most forms

Version 4.00.38 (August 2000)
Bug Corrections
  • Curvature-refraction correction now applied to final traverse/network calculations only, not during TOB file observation pre-processing
  • Curvature-refraction correction to radiations corrected
  • Zero or blank distances in TOB file corrected
  • Graphics display now shows correct line for reference bearing following Radiations option
  • Radiations - height of instrument at new station corrected
  • Meaning of repeated traverse angles (different setups) corrected
  • Side-shots not always indicated in traverse summary - corrected
  • SDR20 data - Zero distance or vertical angle values in 07 record rejected
  • Vertical least squares adjustment - evaluation of weights based on distance corrected

Enhancements/New Features
  • Log file includes greater detail of traverse/network observation pre-processing; also now includes reduced distances & VC's and curvature-refraction correction for radiations
  • 'Mean observations' check box in Traverse option repositioned and now applies to all adjustment modes (previously for LS Network only)
  • 'Mean traverse observations' check box added in SDR Total Station option
  • TOB file now includes extra line for observation to each RO for reverse distances etc
  • 'Distance-only' observations section removed from the TOB file
  • Now reads and uses SDR20 collimation and resection observations
  • Limit of 50 sideshots per traverse station removed
  • PLEASE NOTE - refer to the Help documentation in sections such as 'Traverse Data Optimisation', 'General Principles for Traverse Processing', 'Traverse Observation (TOB) File', and 'Sample TOB File' for greater detail about the enhancements listed above
  • Now suitable for Windows NT4 (Service Pack 2+)

Version 4.00.32 (June 2000)

Geoida v4.00 represents the arrival at a major stage in the development of the application known formerly (in a very limited circle) as MegaTrav. The major new feature of Geoida is the conversion from the 16-bit to 32-bit Windows environment now making it compatible with Windows 95, Windows NT4 and more recent versions.

The primary functionality is similar to MegaTrav v3.33, but there is a small number of new options and features including ...

  • Creation of triangular geoid model
  • Interpolation of geoid-spheroid separation from geoid model
  • Geoid-spheroid separation now included in distance reductions
  • Enhanced List Points option now also lists latitude/longitude and cartesian XYZ in a variety of formats; sort on any column; modify a selected point
  • Import option enhanced to read and convert latitude/longitude to current job
  • List of recent jobs included in menu for easy selection
  • Menus rearranged into a more standard range of general options

There are also many other enhanced features and changes too numerous to list. Please consult the on-line help for full details.


Version 3.33 (MegaTrav) Sept 1999
Bug Corrections
  • SDR data (collected with SDR33) - Point number 0 for some backsights corrected
  • TOB file - Point number 0 recorded for some backsights corrected
  • Point number limitation extended to 10000 for evaluation version
  • Numerous corrections and changes made re database errors - now checks for invalid job detail entries and corrects if found; enhanced saving of data at critical stages, eg Exit, Select Job, New Job. ** NOTE ** The option Review Bounds may be used to force a revaluation of certain job parameters if database errors are experienced; the option Repair Job may also be used for correcting database corruptions. Continuing problems may actually be caused by incompatible system files which have overwritten those installed by MegaTrav Setup

Version 3.32
Bug Corrections
  • Reset to correct job after List Jobs
  • Un-resolved database corruptions repaired automatically - program continues

Version 3.31
Bug Corrections
  • Corrections to some derivation codes in List Points
  • Error corrected in Delete Window when deleting lines
  • Import Points - descriptions corrected
  • Database errors 3022 (duplicate key in index) and 3015 (... isn't an index) corrected
  • Other database errors corrected - prompts to re-start & compress database
Enhancements/New Features
  • Added Alt+Break key trapping in main window for program abort
  • Added prompt to allow program abort after 10 errors

Version 3.30
Bug Corrections
  • Now shows adjusted distance in Adjusted Traverse section of traverse summary
  • Traverse summary now does not show heights if no VCs
  • Traverse summary now correctly indicates sideshots
  • Some distances computed as 0.000 due to data error - corrected (P Read, 3-Feb-99, Job GEOTECH1)
  • 'Lost' windows - Previously, if the user swapped to another application while a MegaTrav option was still active, upon swapping back to MegaTrav again the current option's window or dialog box could become hidden behind the main MegaTrav window and often could not be accessed again. Now the main MegaTrav window remains enabled when an option's window is displayed on top - this is so that the main window may be minimised to allow access to the other window if it becomes hidden. Note that while the main MegaTrav window remains enabled while an option is running, most menu items are still disabled.
  • Height correction for distances and C/R correction for VCs/VAs now applied to LS Adjustment (Note - at present, geoid-spheroid separation is NOT applied to height corrections)
  • 'No header details' error corrected in Radiations option when Compute button pressed before data saved
  • Import points - point description corrected
  • Derivation code was being set to (blank) during traverse reduction - corrected
  • Errors 3022, 3043, 3279 - these errors or other database errors may be caused by latent inconsistencies in jobs created by a version earlier than v3.3. To correct the problems, change to a different job, exit MegaTrav, re-start, execute Repair Job, and select the job to be repaired from the list. Check data screens and list or display points to check if OK
Enhancements/New Features
  • MAJOR NEW FEATURE - Now graphically displays points and lines for the current job in the main window. Existing jobs will be updated to the new format whenever an old job is selected, or all jobs in the current data area will be updated if List Jobs is selected. The new VIEW menu adds numerous new options for zoom, pan, etc within this display
  • Writes DOLA CSD output file after LS adjustment
  • Computes area enclosed by a closing traverse
  • Plot Database Points removed from Points menu (now not necessary due to new graphics display); Zoom Point Range option in new View menu is similar
  • Print button added to List Points 'Output Options' frame for the convenient printing of list files (M Albers, 24-Feb-99)
  • Added prompt to abort program if required after every 10 errors
  • Added list of files in FILELIST to installation set

Version 3.20
Bug Corrections
  • If Std Dev values used from TOB file, now does not print a-priori values in least squares adjustment report
  • Disparity corrected between standard and relative error ellipses apparent when large variance factor computed
  • Now checks that at least 2 points are held fixed for horizontal LS adjustment
  • 1D vertical LS adjustments now show all unfixed points in report when 'Mean Obs' is uncrossed
  • Window displaying messages now does not cause screen to 'flash' as messages change when Traverse or LS adjustment is running
  • Computed variance factor for 1D LS level adjustments now corrected
  • Corrections to reporting of observation & point standard deviations & error ellipses when no redundant observations
  • Diverging of LS adjustment corrected when difference between observed & computed angles was computed to be 360 degrees or greater
  • Copy Job - "Permission denied" error corrected
  • Corrections to management of evaluation period
  • Directory path for 'list' files now updated correctly when job and data path changed
  • Format of TOB file corrected when vertical decimals in Job Configuration not set to 3
  • Meaning of manual traverse distance observations corrected
Enhancements/New Features
  • Reliability ratio for angle & distance observations removed from least squares adjustment
  • Error semi-axis and standard deviations added for 1D vertical LS adjustments
  • W-test for observation outliers added to LS adjustment
  • If no observation outliers detected, global error testing (chi-square test) now permits weights to be scaled by the a-posteriori variance factor and the statistics to be recomputed
  • A-posteriori standard deviation of observations added to least squares report
  • Additional columns added to TOB file to specify the standard deviation for vertical observations and (if levelling) number of setups

Version 3.18
Bug Corrections
  • Import Points (XYZ) - now assigns zone specified
  • Enter Pts (XYZ) - On Exit and Write points to database, now also displays number of Fixed Points assigned
  • Least Squares - Chi-square test modified & corrected
  • List Jobs - display format corrected & modified
  • Traverse Summary for TOB now correctly displays file description
  • Inverse - on exit, would display Traverse Summary (or other) if run previouslyA
  • Plot Survey - traverse start points or control for trilateration not shown - corrected
Enhancements/New Features
  • Help document now included - press F1 on any menu item or when any window is displayed
  • History option added in Help menu
  • Least Squares - Std Dev values now written to TOB file in Traverse and SDR Total Station options; these values can be edited in the TOB file and the user can select to use either the Std Dev values from the file or apply the default a-priori values to all observations (Use Default Std Dev option added to Adjustments frame for this purpose)
  • Least Squares - Relative error ellipses computed and analysed to determine SP1 class
  • Least Squares - Scale factor for weights display now indicated
  • Least Squares - A-Priori Std Dev values all set to 0.000 now sets unit weights for all observations
  • Enter Pts (XYZ) - Can now specify Fixed point by Point Number only (ie, no coordinates necessary)
  • Least Squares adjustment - Dist/Dir_Reliability_Ratio in MEGATRAV.INI when set to 0.00 (now the default) now turns off this feature so that weights are derived only from the Std Deviations specified and are not additionally scaled according to the length of observed line
  • Traverse Summary (LS) - Reliability Ratio now not displayed if set to 0.000 (feature turned off)
  • Location of some controls made more consistent between Survey dialogs
  • Year 2000 compliance for date functions (MegaTrav and Setup1)
Notes
  • Help feature - does not display some graphic images - these are indicated by 'Unable to display graphic'. Some boxed text does not display correctly

Version 3.17
Bug Corrections
  • Radiations - If VA specified, VC used is now as reduced from VA field, not VC field

Versions before 3.17

Numerous corrections and enhancements

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