Version history

TopoLT V16.0.0.0 – V16.0.0.65 (2023, October – 2024, March)

  • Added DrawGeoRef command to draw georeferenced images from a directory.
  • Adaptation for BricsCAD V24.
  • Added functionality for GstarCAD platform version 2024.
  • In the DrawGeoRef window, the filter “intersects the boundary” has been added to the image identification filters.
  • Added ReplTxt command to replace texts of selected TEXT entities.
  • At the DrawGeoRef command for the selected area or for a polyline that has the shape of a rectangle, now you can create ImageClip on the selected rectangle. Also at this command now a maximum of 10 directories used to upload images are kept in the history.
  • The “RTF to PDF Converter” library produced by Sub Systems, Inc. has been updated.
  • The TransLT library has been updated.
  • Added WebImg command to draw images downloaded from online servers.
  • Adaptation for GstarCAD 2024.1 has been made.
  • Adaptation for BricsCAD V24.2 has been made.

TopoLT V15.2.0.0 – V15.2.0.36 (2023, August – 2023, October)

Errors fixed:

  • Fixed an AutoCAD driver incompatibility error.
  • Fixed inability to print on custom papers for ZwCAD.


  • The CJ command has been modified, now you can draw several graticules at once.
  • Two new detachment methods have been added to the DETAS and MDETAS detachment commands, detachment by translating the selected sides in one direction and detachment by equidistant parallelism to the selected sides. To understand how these detachments are made and what would be the situations in which they can be applied, see the sketches in the description of the DETAS command.
  • PrnPlan command has been added to print the plans to PDF, TIFF or BMP files.
  • The FormPlns and NrPlan commands have been improved.
  • The setting related to the name of the block with attributes that contains the objects of the plates in the Plan Layout Section has been added to the configuration.
  • The DrPln command has been improved, it is now possible to draw multi-format plan layouts or fill an area with borders.
  • The ribbon has been adjusted to reduce its length.

TopoLT V15.1.0.0 – V15.1.0.63 (2023, February – 2023, July)

Errors fixed:

  • Fixed a bug with the SensPoly command regarding the impossibility of changing the direction of a polyline when the polyline had duplicate vertices.
  • An error in the MDimPl command related to the positioning of the dimensions inside or outside the dimensioned polyline was corrected, an error that appeared for some polylines with a certain geometry.


  • The TransLT V15.0.0.4 library has been introduced.
  • A check for updates button has been introduced in the product activation window.
  • The library used to convert files from RTF to PDF has been updated.
  • The way of generating the PC serial number has been changed due to the emergence of special situations in the cases of motherboards without a serial number.
  • The InsVx and DelVx commands have been modified for multiple use.
  • Adaptation for BricsCAD V23.2.
  • Adaptation for AutoCAD 2024.
  • INI files used by the application are now tested and signaled with a message in cases where these files cannot be read, cannot be overwritten, or if special permissions are required to access the file.
  • The functionality of the program was verified in ZwCAD 2024, no new adaptation to this CAD program was necessary.
  • For the CJ graticule drawing command, a new setting has been introduced, namely whether the border will be drawn or not.

TopoLT V15.0.0.0 – (2022, December – 2023, February)

Errors fixed:

  • An error of omitting some fonts that were installed in Windows from a user account was removed.
  • When installing in CAD, it is now tested if the folder where the program was installed has write permission set.
  • An error related to the ETaskbarException exception that appeared in the case of some particular settings of the Taskbar in Windows was removed.

TopoLT V14.1.0.0 (2022, September)


  • A new method of saving the entities generated by the program in the CAD drawing was introduced, obtaining a considerable increase in the drawing speed.

TopoLT V14.0.0.76 – V14.0.1.53 (2022, April – 2022, September)

Errors fixed:

  • From updates that require installation, the loss of the appearance of the TopoLT windows has been eliminated.
  • Releases the CAD program window so that it can be closed when the TopoLT program update window is displayed in the CAD program.
  • During updates when reinstalling, an error has been removed regarding the language in which the program was originally installed.
  • An error that appeared when completing an attribute of a block with the information extracted from the point code was removed.
  • An error that appeared in AutoCAD 2023.1 when loading the program starting from the second open drawing in the same AutoCAD 2023 session was removed.


  • Tests have been performed for proper operation in AutoCAD 2023.
  • The DelVx command has been introduced to delete the vertex of one or more polylines.
  • In the CAD program, the help buttons have been added to the toolbars and ribbon.
  • Activation of educational licenses has been introduced using the online platform
  • The JoinPoly command has been introduced to join two polylines.
  • Adapted for ZwCAD 2023.
  • The libraries for converting RTF files to PDF have been updated to correct the allocation of space to comply with page layout.
  • The window with information about the program and about licensing has been completed.
  • Four new window styles have been added for Windows 11.

TopoLT V14.0.0.0 – V14.0.0.75 (2021, May – 2022, March)

  • The TransLT V14 library has been introduced.
  • Update service has been introduced.
  • The TabRel command has been introduced for drawing the table with the inventory of the rooms of a building.
  • The design of the icons has been changed to suit the dark or light background.
  • The display of ribbon commands has been introduced in the CAD program.
  • Windows 11 adaptations have been made.
  • Adapted for BricsCAD V22 and ZwCAD 2022.
  • This version was made using the latest versions of integrated development environments used by our company to develop software applications.
  • Some images of the buttons that did not match the dark or light background have been corrected.
  • “Windows 11 Modern Dark” style has been added for windows.
  • The license report is presented in a table.

TopoLT 13

Errors fixed:

  • A communication error on the serial port has been removed.


  • Adaptation for AutoCAD 2021.
  • Adaptation for ZwCAD 2021.
  • Adaptation for BricsCAD V21.
  • The TransLT V6 library has been introduced.
  • The possibility to search and replace texts has been introduced in the tables. Coordinate tables can also be saved in PDF format.
  • When drawing level curves, the possibility to draw the texts of the main curves outside the 3D model was introduced. You can find the setting when configuring the program in the 3D Model Section – Contour Level.
  • A new ChM3D command has been introduced with which you can change the shape of the 3D model using lines that force the change of slopes.
  • Functions that use 3D models have been improved.
  • For areas, the setting to draw or not the polyline that frames the text in the Areas Section – Labels has been introduced.
  • Minor fixes related to display in TopoLT windows.
  • This version was made using the latest versions of integrated development environments used by our company to develop software applications.
  • The tables marked the current row and the cell in the table header of the current column.
  • For the DimPl and MDimPl polyline sizing commands for some dimension texts that are written at an angle that makes them difficult to read, their rotation has been applied so that they can be easily read.
  • At the HasPl command, the label texts have been removed from being hatched if they exist and are attached to the polyline.
  • The precision for accepting the last polyline was introduced at the MDetas multiple detachment command.
  • The MRefLink command has been introduced to reconnect between polylines (plots) and texts describing plots.
  • A new MIpct command has been introduced for multiple insertion of graphic points.

TopoLT 12

  • Starting with this version, the program works with Unicode characters, and the 64-bit version was also created. Old versions of CAD programs that do not support Unicode format have been removed.
  • Adapting for Windows 10 and for high-definition displays (retina display).
  • It was introduced the possibility to choose the style of the windows.
  • The SensPoly command has been introduced to to change the starting point and the direction of points of some polylines.
  • The TabParc command has been introduced to display the TopoLT land plots in the table.
  • The DxfExp command was introduced to export the drawing in dxf format with the ability to filter entities on the layers.
  • Coordinate tables can be exported to Microsoft Word or Excel.
  • At saving and loading coordinates the XML file format was entered, and the RTF file format for saving the coordinates from the tables.
  • The ProjM3D command can now project POINT entities and TopoLT points on the 3D model.
  • At the ARR command, the table with the analytical calculation of the area is saved in a file with the RTF format, respectively arr.rtf.
  • Adaptation for BricsCAD V20.
  • It was removed an error that occurred when saving the coordinate tables from the calculation window of the polar points (Crad).
  • It was removed an error that occurred at the versions of AutoCAD installed in a language other than English.

TopoLT 11.5

  • Adaptation for the following 32-bit and 64-bit AutoCAD versions: 2016, 2017, 2018, and 2019
  • Adaptation for the following 32-bit and 64-bit BricsCAD versions: V17.2, V18.2, and V19.1
  • Adaptation for the following 32-bit and 64-bit ZWCAD versions: 2019 SP1
  • To transform the coordinates and draw in Google Earth, the TransLT version 4.0 library was introduced.
  • When changing the scale of the plan with the TopoCfg command, selecting entities for scaling is made only once.
  • It was introduced the possibility to cancel the license registration in order to move it to another computer when desired. For special cases, a computer failure, loss, or destruction, the transfer of the license to another computer may be made by a written request stating the reason for the transfer of the license.

TopoLT 11.4

  • Adaptation for BricsCAD V16.2;
  • Adaptation for Windows 10.

TopoLT 11.3

  • Adaptation for ZwCAD+ 2015 SP1;
  • When saving configuration in file now the files associated to configuration are also saved, respectively the files with codes, layers, lines and shape.

TopoLT 11.2

  • Adaptation for ZwCAD+ 2015, BricsCAD V15 and for AutoCAD 2015.

TopoLT 11.1

  •  It was introduced the new TransLT library V3.1 that now supports the time-dependent transformations, supports a new type of grid file, two new projection methods, etc.

TopoLT 11.0

  • Adaptation for ZwCAD+ 2012 and 2014, BricsCAD V14 and for AutoCAD 2014.
  • A new section regarding coordinate transformations was introduced at setup options: Transformations Section.
  • Coordinate transformation does not require anymore TransLT program. Starting with this version TransLT library version 3.0 was introduced. With this library you can transform coordinates using your own transformation models.
  • GEdraw command was changed so that drawing in Google Earth is done directly or the data can be saved to a file.
  • A new command was introduced TrCoo that helps you to transform coordinates of points from drawing, resulting coordinates are saved in a text file.

TopoLT 10.5

  • Adaptation for BricsCAD V13.

TopoLT 10.4

  • Adapted to work on AutoCAD 2013, BricsCAD V12, ProgeCAD 2011, CADian 2011and ZwCAD 2012.
  • When entering the new points in drawing, manually or automatically, you can choose whether to fix or not the number of decimals of points coordinates. In this way you can avoid the small changes of parcels areas made by this fixing.
  • When calculating volume you can choose whether to draw 3D objects as Polygon Mesh or Solid 3D and in the case of 3D Solids objects you can choose whether the bodies unite to create a single 3D Solid.
  • Now the codes that contain “+” character are accepted.
  • When changing points under the new configuration points are drawn without being passed through the tables to keep the number of decimals of the coordinates.

TopoLT 10.3

  • Adapted to work on BricsCAD V11.2.3.
  • Improvements made for working in program’s tables.
  • For polar points calculation command, for all tables was introduced a new column with row’s ID.

TopoLT 10.2.2

  • Fixed one error that occurred while drawing in Google Earth when the separator character for CSV files was different from the one used in the TransLT program.

TopoLT 10.2.1

  • Possibility to choose the attribute for the plan scale used to write the plan scale with NrPlan or DrPln commands.

TopoLT 10.2

  • The files used for configuration are also searched on the path were the program is installed;
  • When using command PUR, if errors occur when calculating polylines areas then through redialing the command errors are avoided. Errors are determined by the way command AREA functions in AutoCAD 2011 in the case of polylines that contain curves that intersect each other.
  • Changing command GEdraw to work properly with TransLT 1.2.

TopoLT 10.1

  • Adapted to work on Windows 64-bit, AutoCAD 2010 and 2011 versions on 64-bit;
  • New command to restore the links of a parcel with its definition texts. In versions made before 9.0 these links are not done;
  • Possibility to draw polygons, paths or points in Google Earth with the assistance of the software TransLT.

TopoLT 10.0:

  • Entities that define the points may be copied or inserted into another drawing without wasting links between entities.
  • The saving and repositioning of georeferentiated images can be done correctly also for images that are not evenly rotated and scaled. TopoLT respects now file format „world” ESRI. If you have images that have been georeferentiated with TopoLT, images that are not evenly rotated and scaled, we recommend to save them once again with this version of TopoLT.
  • You can use „Copy” and „Paste” for an instrument from the list with instruments from Section – Instruments.
  • You can import files with a defined format in instruments section that contain only: Point name, X and Y. In former versions there could be imported only the lines that contained all 5 values such as: Point name, X, Y, Z and Point code.
  • It has been introduced the possibility to scale blocks that are allocated for grid’s crosses.
  • Now the entities that have extruding defined, entities to which have been applied 3D rotations, 3D alignments, etc. are correctly interpreted.
  • A new command was introduced in order to interpolate points on 3D plane.
  • A new command was introduced in order to fix the elevations of point to the elevations of the entities that define points (the block allocated for points).
  • A new command was introduced in order to recalculate polylines areas and change the text labels with the new area.
  • Starting with this version for areas obtained by detachment that will change polylines with one of these commands: AutoPct, FixPct, IPCT, InsVx then the areas will be recalculated and will automatically change the text labels.
  • A new command was introduced Mbr in order to break one or more polylines to a point.
  • It has been introduced the possibility of inverting rows or selection from the table from multiple detachments.
  • It has been introduced the possibility to choose separation character for CSV files.
  • The loading process of program into CAD program (AutoCAD or IntelliCAD) was optimized.