VrOne

ON-LINE REFERENCE DOCUMENTATION CARDINAL SYSTEMS, LLC 386-439-2525 www.cardinalsystems.net Copyright © 2000-2006 by Cardinal Systems, LLC

RELEASE NOTES

Changes, additions, bug fixes to VrOne and supporting programs

Release notes begins with VrOne version 2.15

The latest changes are listed first.

Copyrights

VrOne Help

Release notes versions 1.14 – 2.14

Version 2.58 February 7^th 2005

VrOne

• Window Rotation (WinRot) – Added Menu Keys dialog, Zero rotation and Enter rotation.
• Edit Toolbars (EdiToo) – Fixed duplicate accelerator keys on dialog buttons.

VrTwo

• Open Model (OpeMod) – As of VrOne version 1.4 the keywords LeftEpiName and RightEpiName were added to the Model parameter file (.vmo). This routine was not converting the image file names to epipolar file names if a pre VrOne version 1.4 model file name was opened. This has been corrected.
  An image file name is converted to an epipolar file name by adding the Model name and the side (L or R) to the image file name. For example an image file name of 02.tif on the left side of model 2-3.vmo would be converted as 2-3-L-02.tif.
• Image Orientation – This routine is included in Vr2Ori, VrOrtho and VrAirTrig - Added button 6 to MenuKeys dialog allowing user to measure the size of a fiducial mark and write it to the camera file. Having an accurate fiducial size is important when doing automatic inner orientation.

Python

• Renamed VrMenuKeys class to PyVrMenuKeys for consistency with other VrOne Python classes
• Fixed problem with SetIaLabel call in VrPyMenuKeys
• Added replot callback function to VrApp
• Added methods to PyVrDtm class for finding triangles and getting triangles attributes (slope, aspect): Methods Added: GetTriangle, GetTriangleInfo, FindTriangles, FindTrianglesFromEdge

Version 2.57 February 1^st 2005

General

• Completed testing and implementation of the PCI Express computer with graphics card PNY Quadro FX 1300.

VrMosaic

• VrMosiac (vrmosaic.exe) – The VrMosiac program has been redesigned as a stand along program offering new features. VrMosiac no longer requires VrOne in order to run and does not need to be on the same computer as VrOne. VrMosaic offers more control of the image mosaic process by displaying real-time all images up to the current seam line. The seam line editor is very powerful with the ability to add, move and delete seam line points with one or two key presses.
  The VrMosiac Help pages include a link to the VrMosaic Tutorials. These tutorials contain step-by-step videos to help guide you through the mosaic process.
  This is considered a beta version of this software.

VrOne

• Transform Workspace (TraWs) – Added more decimal accuracy in the dialog box display.
• Zeiss P1/P2/P3 Scale Factors – These parameters are not part of the Vr Configuration file. They are now being saved correctly.
• Window Settings Dialog - Fixed problem with attaching to graphics window.
• Fixed display of Brightness, Contrast, and Window Settings icons. The icon files for these items are taken from \vr\data\icons\, and are named bright.xpm, contrast.xpm, and winsettings.xpm respectively.
• Fixed problem with Snap window and Windows settings window being displayed when VrOne is minimized.

• ASCII In (AscIn)
  - Fixed importing of Non-Graphic pointers.
  - Changed treatment of Pen Up code in cases where a Pen End code is being used. In this situation, a pen up is used to specify segments on a line that will not be displayed.
  - Added graphics replot after translation is complete.
  - Fixed display of translation status information when translating into a single file.
  - Added support for importing feature codes. Because feature codes may contain spaces, they are only supported using the comma-delimited format. Commas are not allowed as characters in the feature codes.
• ASCII Out (AscOut)
  - Fixed problem where features codes larger than 24 characters could cause a crash.
  - Feature codes on lines are only placed on the first coordinate line.
• Explode Line (ExpLine) – Fixed scale factor to work with different target scales.
• ToolBars (EdiToo) – Fixed problems with ToolBars positioned at the edge or outside windows desktop area.
• Edit Line (EdiLin) – Added P= keyin to allow point pen codes to be changed. This is useful for hiding segments on an existing line. Pen Codes are explained in the Getting Started document.
• Edit Beep (EdiBee) – Fixed assignment of sounds to buttons and functions problem in dialog box.
• Cut Window (CutWin) – Added browse button to output filename.
• DTM – (RunDtm) – Fixed problem with break lines sometimes being ignored when using area mode of “current view”.
• EditLine (EdiLin) – The display flag for the current line was not being updated if the line was locked onto and the program was terminated using the X box in the Main Window or by closing the VrOne file. This would result in the line not being displayed on the next screen refresh. The line could be recovered by using the Set Display All (SetAll) command. This has been fixed.
• Insert Parallel Line (InsPar) – Added the display of the delta elevation from the base line to the current cursor location in Enter Offset.
  
  

VrTwo

• Stealth Z-Mouse / Stealth Hand Wheels – This is the first release that includes support for the Stealth Z-Mouse and Hand Wheels. The Z-Mouse differs from the original Stealth 3D Mouse in that it does not configure as a Windows mouse so when in operation the Windows mouse may be used for normal operations such as pulling down menus etc.

VrTwo Orientation

• Added support for the importing of ORIMA measurement files to set models.
• Create Epipolar Images Batch – Added this application which creates epipolar images for the models listed in the current project. This is useful when importing orientations. This application can be accessed from the Import pull-down menu.
• Import Orientations from Measurements – Improved interface by reading the input measurement file and placing the photo names or strip/photo numbers in list boxes for user selection. This will reduce the need to view the input file before importing to determine the photo name format.
• Import Exterior Orientations – Improved interface by sorting and listing the strip and photo numbers in list boxes for user selection.
• Edit Project – Location of epipolar images – Added option to specify the location for the epipolar images, the model definition (.vmo) files and the orientation parameters (.orp) files. In previous versions these three file types were automatically saved in the same directory as the raw images.
• Edit Project – Add Model – Fixed save problem that occurred when multiple models were created.
• Inner Orientation – The Inner Orientation routine in VrTwo Orientation no longer writes the fiducial patch image and offset files. This is a function for the Image Utility program.
• Inner Orientation – Added Menu Keys dialog which shows button assignments. These keys are for display only and do not operate as push buttons.
• Relative Orientation – The image overlap is now displayed in the results dialog box. This is computed from relative orientation measurements.
• Absolute Orientation - Added Menu Keys dialog which shows button assignments. These keys are for display only and do not operate as push buttons.
• Lens Radial Distortion Correction – Added optional polynomial adjustment using the Simultaneous Multiframe Analytical Calibration (SMAC) System from USGS.

VrAir Trig

• Re-measure Point – Added this application. Allows a point to be chosen from the Layout window. The point is then displayed in up to six individual windows. The point may be re-measured by digitizing a new location in any window. Other options include correlation from the point location in one window to a target window and stereo measurement between any two windows. Re-measure Point is useful for resolving point identification problems in multiple photographs. This application may be started from the Points -> Re-measure point menu button in Vr Layout.
• Layout – Set Photo Positions – The “Bottom to Top” option how works correctly.

MicroStation Translator

• MstOut – The .cel extension is automatically added to Cell and Pattern library names.
• MstIn MDL – (Version 1.22) – Proper warning is displayed if a cell library cannot be attached.

Python Programming

• PyVrGr (Graphics) – Added GetWinCorner and GetWinSize UpdateParams methods to this class.
• PyVrGui - Gui.PushKeyin – Commands sent using this method are now processed immediately.
• PyVrGui (Graphics) - Added methods to make PyVrGui class more complete including; DspMsg, DspMsg0, DspState, DspShortMsg, SetTitle, ShowCoord, ShowZ, ClearCoord, MsgBox, AlertBox, ConfirmBox, YesNoBox, TryAgainBox, CustomBox, Beep, BeepFile, ProgInit, ProgSet, ProgReset, GetDirectoryName

Vr Configuration (VrCfig)

• Set File Paths – Added browse buttons.

Version 2.56 November 9^th 2004

VrOne

• Make Polygon (MakPol) – Added this batch application. Make Polygon creates closed polygons using existing line segments and centroids. The application looks at the spatial relationship of existing line segments and creates enclosing polygons around areas containing centroid symbols. Lines may be collected in any direction. The resulting polygons are placed in a user specified layer, along with polygons that represent any holes that were found within the main polygons.
• Batch Join (BatJoi) – Fixed problem that was causing all joins to be added to the drive file.
• Dxf Out (DxfOut) – Fixed target scale problem that occurred when stroking line widths.

• Edit Toolbars (EdiToo)
  - Fixed problem that would cause VrTwo to crash when switching from static to roaming modes.
  - Fixed handling of toolbars located in multiple windows.
• Zoom All (ZooA) - Added optional parameter. The parameter specifies a window number from 1-8. If multiple graphics windows are open, this allows the Zoom All command to be used on a specific window without requiring a selection by the user.
  
  

Version 2.55 November 1^st 2004

General

• Support for PCI Express – For the past several years the graphics standard for high-speed computer graphics has been the AGP (Accelerated Graphics Port). This standard evolved from 1x to 2x, 4x and currently 8x speeds. The 3DLabs Wildcat 5110/6110/7110 and the NVIDIA Quadro4 980 graphics cards are AGP slot cards. As with any computer technology, a newer and faster system has been introduced called PCI Express. PCI has been available for many years and predated the AGP interface. An improvement in the interface has let to the introduction of 1x – 16x PCI motherboard slots and PCI Express cards from NVIDIA and ATI. The 16x PCI Express boasts a doubling of the IO bandwidth of the AGP 8x slot. Even though AGP should be available for some time, Cardinal Systems has started the support of the PCI Express standard in order to give customers more options when purchasing computers. Dell Computer Corporation has begun shipping PCI Express computers and appears on the way to obsolescing AGP based computers for their higher-end workstations.
  
  Version 2.55 has been tested on a Dell PCI Express computer with the PNY Quadro FX 1300 PCI-Express graphics card. Starting at this version, Vr Mapping Software will support the AGP and the PCI Express standards. Support for both standards should be transparent to the user. We are currently building a PCI Express “Build You Own Computer” and will publish the specifications and ordering information when available.
  
  For more information see “What is PCI Express” and “PCI Express: the AGP8X Replacement”.
  
  
• NVIDIA Quadro4 980 XGL Driver - Fixed image display problem that occurred after upgrading the NVIDIA driver to version 6.5.7.3 on Windows XP. This problem could be seen in Image Utility, VrTwo Orientation, and VrAt and appeared as an image shift on the bottom half of a displayed image. The fix works will all NVIDIA driver versions.

VrOne

• Bump Elevations (BumEle) – Added this application. Searches symbol elevations against a contour interval and changes points that fall with a user defined delta elevation from the contour interval. This batch application is useful in identifying and changing points that fall on a contour interval especially LIDAR data. This process avoids zero or small area contour lines that may be generated when points fall on a contour interval. For example, point elevations of 123.02 and 122.98 could be identified if the contour interval was 1 and changed. Options for changing points include applying a delta elevation shift to the points, changing their layer or deleting them. Searching options include the definition of the contour interval, delta search elevation and an option to search for points above the contour interval only.
• Vr Toolbars - Added toolbar capabilities. Toolbars, or button pallets, allow the user definition of push buttons that are placed into a Toolbar. These buttons may contain VrOne commands and (or) Function Keys and (or) Macros. Images may be used to define the buttons appearance for easy recognition. VrOne Toolbars may be floating or docked, and can be set to vertical or horizontal orientation. Toolbars are customizable by the user, and can be created and edited using the new Edit Toolbar (EdiToo) command. Toolbars may be docked at the bottom of the VrOne main window, or on the sides or bottom of graphics windows.
• Edit Toolbars (EdiToo) – New command to edit toolbars. This allows creation and editing of toolbars and toolbar items.
• Device Controls (DevCon) – Device controls allows the setting of parameters for input devices such as the Stealth Mouse and the VrTwo Hand Wheels. In past releases the device to be configured had to be connected and active. It is now possible to configure any of the supported devices without them being present or active. Device Controls may be accessed from the Input pull-down in VrOne or VrTwo. Each device may be accessed by the following key-ins:
  - DevMou – Mouse / Stealth Mouse
  - DevP3 – Zeiss P1/P2/P3
  - DevHan – VrTwo Hand Wheels
  - DevTop – LH TopoMouse
• Image Display Control - Added a settings button the bottom right corner of the VrOne graphics windows. This allows the user to quickly set image display options on a per window basis that were previously only available as global settings. The options available are the display of images, image names and image edges.
• Snap Ignore Failed (SnaIOff, SnaIOn) – Added two snap settings that determine an action to take when a snap has failed. When Snap Ignore Failed set to On, when a snap fails the operator may try again. When Snap Ignore Failed is set to Off, the digitized position of the failed snap is returned. . This setting ensures that a point is not returned when snap fails and that all returned points are associated with an entity. Snap can fail when the digitized point is outside the current search radius. This new setting may be conditioned with the SnaIOff and SnaIOn key-ins or with a dialog box with the Snap Set (SnaSet) command.
• Delete Duplicates (DelDup) – Using a new search algorithm, the processing speed of this batch application has been increased up to 30 times over previous releases when processing large files. This batch application was one of the slower batch operations which qualified it for this new search algorithm.
• Batch Join (BatJoi) – Using a new search algorithm, the processing speed of this batch application has been increased up to 30 times over previous releases when processing large files. This batch application was one of the slower batch operations which qualified it for this new search algorithm.
• Line Cross (LinCro) – Fixed progress bar.
• Insert File (InsFil) - Fixed problem where a file could not be inserted from a different drive.
• Batch Node (BatNod) – Added workspace mode parameter allowing lines to be noded between workspaces.
• Gap Lines (GapLin) - Added workspace mode parameter allowing lines to be noded between workspaces.
• Dtm (RunDtm) - Fixed problem with DTM engine that could cause it to hang during the moving points stage.
• Batch Depression (BatDep) - Fixed problem with Batch depression that was causing some of the depression contours to be flagged incorrectly.
• Mosaic Flag – Fixed problem that could corrupt the VrOne Mosaic Flag database item.
• ASCII In (AscIn) – Added progress bar.
• Dxf Out (DxfOut) – Added the following features:
  - Added option to translate to separate files based on feature codes.
  - Added global scale factor parameter
  - Added option to output entities section only.
• Microstation In Translator (MstIn) – Fixed problem where symbols names were not being cross referenced correctly.
• Microstation Out Translator (MstOut)
  NOTE: The Mst Microstation software must be download from the web page for these changes to work correctly.
  - Fixed problem with points being created from symbols.
  - Added global scale factor. This only affects cells. The scale factor of all cells is multiplied by this amount before being written to the output file. If all cells in the cross reference table are set to have a scale of 1.0, then this would result in a uniform scale factor being written for all cells.
  - Added Omit Layers parameter allowing layers to be explicitly omitted from the translation.
  - Added option to add cross reference entries for all VrOne entities in the currently opened files.
  - Changed error file to be placed in the same location as the output .mst file, and to have the same name as the output .mst file, but with an .err extension.
  - Added reporting to the .err file of all entities that are translated without an entry in the cross reference tables.
  - Added Scale operator to symbol cross references. This operator can be set to = (equals), * (multiply), or + (add). This allows the scale value entered to be multiplied or added to the current VrOne symbol radius.
  - Added option to explode text entities.
  - Added option to output each workspace to a separate file.

• Image Merge (ImaMer)
  - Fixed dialog to correctly enable/disable controls.
  - Added browse button for output filename.

• Plot Control (PloCon) – Fixed problem where first text label was not placed in it’s correct offset postion.

VrOrtho – Version 1.57

• Fixed problem with DTM engine that could cause it to hang during the moving points stage.
• Image pyramids are no longer built automatically when VrOrtho opens a project.

Vr Image Utility – Version 2.57

• Fixed problem with rotating tiled images.

Microstation In MDL – Version 1.20b1

• Added support for version 8 of Microstation (mstin8.ma).
• Added progress bar.

Microstation Out MDL – Version 1.20b1

• Added support for version 8 of Microstation (mstin8.ma).

VrTwo

• TopoMouse - Added support for the Leica TopoMouse which is a free-hand device for moving the cursor in the XYZ directions in VrTwo and is used for carrying our frequent photogrammetric operations. Features include a mouse-style trackball for the XY movements and a Z-wheel for Z movements. 16 user definable buttons are available. The VrOne TopoMouse driver allows any button to be programmed to emit a predefined VrOne key press from 0 to 11 or any VrOne key-in which may include key-ins, macros and (or) function keys. Several TopoMouse specific functions may also be programmed on any button such as Clutch and fast XY movements.

Version 2.54 August 10^th 2004

VrOne

• Slope Line (SloLin) – Added this interactive/batch application. Interpolates (slopes) point elevations on a line based on two existing line points. There are three modes that are available: 1) The line to slope is identified and the two existing line elevations are identified. 2) The line to slope is identified and the line end points are used as the existing points 3)All lines in layer(s) specified are sloped and the line end points are used as the existing points
• Node Lines (NodLin) – Fixed sorting problem that could cause incorrect nodding when two lines were in opposite directions.
• Insert Line (InsLin) – Added Inherit Z parameter to Splice. When this parameter is set to Yes then the elevation of the spliced line will inherit the elevation of the base line. In the case where three lines are spliced the elevation of the first line will be used. This parameter should only be used when splicing features such as contours where a constant line elevation is assumed.

VrTwo

• Switching into roaming mode and then back out before all image memory was loaded could cause a crash. This problem has been fixed.
• An intermittent problem that caused spikes in lines and incorrect symbol placement was fixed. It was possible for an application and the roaming software to access the database at the same time. This problem only occurred when in VrTwo roaming.

Version 2.53 July 14^st 2004

VrOne

• Insert Line (InsLin) – Splicing has been added to this application. It’s now possible to splice the current line into another existing line. It is also possible to splice the current line into two existing lines. Parameters may be set to splice automatically based on the position of the end points of the current line. When using Insert Line for splicing, it is not necessary to set any of the line properties such as Layer and Graphic Pointer. The resulting spliced will have the properties from the existing line. If a splice is made between two existing lines, the properties for the new line will be inherited from the first existing line which is the line closest to the start point on the new line.
• Inherit (Inh) – Added this edit application. Inherit allows entity properties to be copied from on existing entity to another existing entity. An existing or source entity is identified then its properties may be copied to existing or target entities by identifying them. Line, symbols and text are supported. Parameter settings allow the definition of the properties to transfer not all properties have to be copied. When a target entity is identified properties are copied without verification. If a mistake is made, undo can be used to reestablish the entity to its previous state.
• Node Lines (NodLin) – Added this application. Interactively nodes two lines at their intersect points. The two lines to be nodded are identified by the user. Options include the ability to place node points on each line or to node the lines and break the lines at the intersect points. The elevations of the node points are interpolated based on the slope of the point in front and behind the node points. Z Rules may be applied to the node points. A batch version of this interactive application is available. See Batch Node (BatNod).
• Insert Fly Line (InsFly) – Fixed several display problems including the non display of tentative line segments when digitizing points in manual mode (Button 5).
• Delete Contours (DelCon) – Fixed problem that was causing application not to start.
• Drive (Dri) – Fixed display problem that could occur if Drive was selected from the pull-down menu and that menu overlapped the graphics window. This correction should also fix the display problem of leaving dialog boxes that were started from pull-down menus.
• Batch Join (BatJoi) – Added an option to Match Only when joining lines.

VrTwo

• Pressing and holding a button in stereo static mode with the “VrTwo cursor track plane” set to Ground plane would cause the cursor to momentarily track the view plane thus changing the cursor elevation. This would normally not be noticed except in the case of dragging contours. This has been fixed by stopping cursor movement between button press and release. This is not an issue in stereo roaming mode.

ImageUtil

• Convert Exterior Orientation File – Added this utility which allows an exterior orientation file to be converted from one format to another. A new file is written and the original file is not modified. Formats include Albany, Applanix, PATB (transposed), PATB (normal), JFK, AeroSys and Intergraph Zi. This utility is under the Misc pull down menu.

Version 2.52 May 20^th 2004

VrOne

• Delete Layers (DelLay) – Fixed problem that could cause entities to be duplicated when they were deleted using Delete Layers and then restored using Undo.
• Change Elevation (ChaEle) – Updated to use 2.5 graphics. The application released in versions 2.5 and 2.51 did not display graphics correctly.
• Edit Elevation (ChaEle) – Updated to use 2.5 graphics. The application released in versions 2.5 and 2.51 did not display graphics correctly.
• Edit Line (EdiLin) – Fixed point save problem when transitioning from Insert Point to Point On Line.
• Insert Parallel Line (InsPar) – Fixed Z offset problem that occurred when repeating the last offset after the last offset was entered manually.
• Open Ws (OpeWs) – Set Display All (SetAll) is now run automatically if the VrOne file is from a previous version.
• End – This command now ends VrOne with prompting for confirmation. Exit (Exi) and Quit (Qui) end VrOne with a confirmation prompt dialog box.

VrTwo

• Fixed window update problem when a window overlaid the stereo window in static mode. This problem occurred in version 2.51 only.

VrOrtho – Version 1.53

• Fixed problem that could occur when generating large orthophotos (over 1.3 GBytes on a 2 GByte computer) when using large output areas. The problem would occur immediately after displaying the “Using Full Image Method” message.

VrAirTrig

• Added ability to create a coordinate file.

Translators

• Shape Out (SHPOUT) - Fixed problem with initialization of feature table cross reference table values. Could lead to empty feature table (.dbf) files.

General

• Fixed problem that could cause a window position and size to be reset on startup if the application was last closed with that window maximized.

 Version 2.51 May 5^th 2004

General

• The maximum number of VrOne vector files that can be opened has been increased from 256 to 2000.
• The maximum number of images that can be opened has been increased from 256 to 2000.
• The information dialog box now remembers its last position and is no longer snapped to the right side of the desktop and is no longer held on top of all other windows.
• Added window position check that if a window’s position is off the desktop it is placed in its default position. This could occur when switching between single and dual-monitor configurations.

Vr Configuration

• Added the ability to specify the location of dialog boxes that do not remember their last position. These dialog boxes include information and parameter dialogs and used to always appear in the center of the desktop. The center position is not practical when using dual monitors. The new parameter allows the position to be Left, Center or Right and may be set in the Configuration pull-down under General. This parameter is used by all Vr programs.

VrOne

• Lowered memory usage when opening a large number of images.
• Image and vector files with names longer than 80 characters will now be re-opened as expected when starting VrOne.
• Batch Join (BatJoi), Join Lines (JoiLin) – Fixed problem with lines not joining correctly in some cases.

• DTM – (QuiDtm) - Fixed problem where cursor tracking and draping would not work.
• DTM – Fixed problem with handling crossing break lines. Previous versions could in some rare circumstances leave a "hole" in the TIN model if break lines crossed.
• Batch Areas (BatAre) – New application. Changes layer and graphics pointer of lines based on line area.
• Batch Grid (BatGri) – New application. Interpolates points on a grid from existing VrOne data, and writes the grid points as symbols to the current file or to a user specified output file.
• Batch Direction (BatDir) – New application. Changes direction of lines.
• Cut Sheet (CutShe) - New application. Cuts vector and image data against sheet lines with options to output sheets to new VrOne files.
• Edit Text (EdiTex) – The layer name is now displayed in the Menu Keys dialog box.
• Edit Symbol (EdiSym) - The layer name is now displayed in the Menu Keys dialog box.
• ASCII In (AscIn) – Added option to import multiple input files into multiple VrOne files.
• Drape (Drape) – Added option to create a drive file containing all points that could not be draped.
• Delete Node Flags (DelNod) – Settings may now be changed and used without saving to a parameter file
• Microstation In Translator (MstIn) - Added option to import settings from an MstOut parameter file. Note: The MstOut and MstIn translators were designed to meet different needs, and all settings do not map directly from one to the other. This should be used only as a starting point to settings up the full translation parameters.
• Microstation Out Translator (MstOut) - Added option to import settings from an MstIn parameter file. Note: The MstOut and MstIn translators were designed to meet different needs, and all settings do not map directly from one to the other. This should be used only as a starting point to settings up the full translation parameters.
• Dxf Out (DxfOut) - Fixed problem with bulge line types.
• Show User Dtm Area (SHOUDT) - New command to display a temporary line around the currently defined User Dtm Area. NOTE: Does not shift screen, so this will only work if the graphics window is zoomed to a location that contains the User Dtm Area.

• Set User Dtm Area (SETUDT) - New command that allows a new User Dtm Area to be selected without going into the SetDtm parameter dialog.

Vr Air Trig (VrAt)

• Improved the display speed in the layout window when using the NVIDIA Quadro4 980 XGL graphics card
• Various bug fixes.

Python Programming

• PyVrWs - Added Open, Close, CloseByName, IsOpen, Backup, Pack, FindLine, FindSym, FindText, FindClosestEnt methods.
• PyVrGr (Graphics) - This is a new class that contains methods for drawing directly to graphics windows, changing and querying the state of graphics windows, and querying the cursor. Example methods include: SetWinOrg, GetWinOrg, SetActiveWin, GetActiveWin, Plot, DrawMarker, SetRband, GetCursor
• PyVrLine - Completed support for Mosaic width flag.
• PyVrGeom - Added Circ3Pt and ArcPts methods.
• PyVrDtm - Added GetFirstTriangle and GetNextTriangle method to allow direct access to TIN data.

VrTwo Orientation

• Epipolar images may now be resampled at different resolutions.
• Fixed problem with crashing after creating a new project.
• Fixed problem with opening old format .orp files.

Vr Image Utility – Version 2.56

• Rotate Images – Implemented new method that requires one half of the memory previously needed.

VrOrtho

• Fixed possible crash with project view windows when creating new projects.
• Changed main project edit dialog to use a tabbed interface
• Added options to display markers at resection points
• Added option to not display default orthophoto areas in orthophoto area editor
• Add import of VrTwo exterior orientations
• Changed default focus in Project Edit dialog to the Ok button.
• Add project overview window. This is a graphics display showing the outline of all resected images, orthophoto area definitions, output orthophoto images, and the current DTM boundary.
• Add ability to go to any other orthophoto image, or the next orthophoto image without exiting the Ortho Area Editor
• Ortho Area Editor now remembers the graphics window positions.
• Added option to use strip location to adjust Kappa values during exterior import.
• Added ability to save project settings as default values to be used when creating new projects.
• Fixed display problem in Ortho Area Editor when selecting output window.
• Fixed display problems with resizing Ortho Area Editor.
• Shows residual units in resection in ground units.
• Updated to allow one DTM to be used for orthophoto area editing and orthophoto creation as long as full DTM mode is used.
• Added option to specify whether surface file should be used or not.
• Added support for photo number and strip number in PatB import.
• Fixed crash when switching from Resection to other modes using the Image Status window.
• New resampling algorithm to allow faster processing of large images.
• Added option to create info file with each output orthophoto.
• Miscellaneous changes to be compatible with latest version of VrOne.
• Added transpose option to PATB import.
• Changed algorithm for converting PATB import files.
• Added option to import images from Image Utility projects.
• Added user rotation option for importing OPM files.