• TopoLT

    For over 25 years for surveyors

TopoLT is a program offering tools for 2D and 3D aplications and functionalities useful for all those who design topographical or cadastral plans in digital format, who develop 3D terrain models and contours, fill and cut volumes calculation, raster image georeferencing and automatic printing.

TopoLT is running on AutoCAD, BricsCAD, ZWCAD or GstartCAD, using the drawing functions of CAD platform and adding specific functions necessary to create topographical and cadastral plans in digital format.

With a tradition of over 25 years, TopoLT is the oldest topography application in Romania, created to help surveyors to carry out topographic and cadastral works. TopoLT is a complete solution for topography and cadastre projects.


Quickly create your projects

Complete set of tools

Rich functionalities, for any kind of project

Extended compatibility

Works with AutoCAD, BricsCAD, ZWCAD and GstarCAD.


Easy to learn and use

Easy customization

Configurable for everyone’s needs

Technical support

Continuous updates and fast support

Key features of TopoLT

TopoLT is compatible with AutoCAD, BricsCAD, ZWCAD and GstarCAD.

Modern and friendly interface, easy to customize and integrate in your CAD application.

The configuration of the program is designed to provide for a wide range of situations and to be easily customized.

The code interpretation file and the layer file can be customized by each user. These files help automate the process of importing points and drawing.

The program allows the import of coordinates from a file or topographic equipment, the transmission of coordinates from the drawing to the topographic equipment, the remaking and generation of the coordinate table.

The application allows topographic calculations. By example, the coordinates of radiated points can be calculated as polar points, as well as through forward intersections.

In TopoLT it is possible to make the 3D model of the terrain and the contours, to cut or to move the 3D model, and visualize it.

TopoLT allows you to calculate the volume that is formed between a 3D model and a plan or the volume that is formed between two 3D models and to display the values for cutting and filling.

TopoLT allows the generation of new plots, simple and multiple detachments using different methods for detachment (parallel, parallel to one direction, perpendicular, proportional, through a forced point, forced opening), recalculating plot areas, displaying the table with generated plots.

TopoLT allows to georeference images and save georeferenced images, crop, reposition, resize, or merge multiple images.

TopoLT can draw polygons (closed polylines), paths (open polylines), and points in Google Earth using coordinate transformation models.

TopoLT can draw the grid, to print automatically, to create views, load the view, and to draw it depending on the paper size and printer type. The program contains functions for renumbering points, text optimization, joining points by code, changing elevation and inserting points automatically.

TopoLT allows to quickly insert georeferenced images from a folder. You can draw all the images found in a certain folder or, by selecting the area in the drawing, the program will load only the necessary images and clip them.

The program allows you to draw images downloaded from online servers and to place them in the drawing in the selected area. Multiple image sources are available and the images are transformed into the drawing’s coordinate system.

Download and try TopoLT, free for 10 days!

  • Draws directly points from coordinate files, draws coordinates from total station or sends coordinates from drawing directly to total station.
  • Point labels can be optimized so that there would be no overlapping between them or with the other entities placed near the point.
  • Point codes are translated according to a codes interpretation file defined by the user.
  • Points can be graphically drawn with or without elevations, elevations can be also obtained through interpolation.
  • Points can be automatically introduced for entities (lines, polylines, arcs, etc.) which don’t have points at margins.
  • Coordinates of sightshot points (polar points) can be calculated including the possibility to import measurements from the majority of existing total stations.
  • Measurements can be received from an instrument through serial port.
  • Points can be selected based on code and point codes can be modified.
  • Point coordinates can be extracted from drawing and saved in different formats, including formats defined at instruments (total stations) or in formats defined by user.
  • Coordinates tables for selected points can be created, including a separate table for station points.
  • 3D model of the terrain and contour lines can be generated, volumes can be calculated without any restrictions (the volume obtained by intersecting a 3D surface with a plane or the volume between two 3D surfaces of any grid form or triangles).
  • 3D models can be cut or joined.
  • Entities from a drawing with can be visualized in 3D with real time rendering, AVI movies can be saved with moving three-dimensional objects, images can be saved, 3ds files can be visualized, textures can be attached to 3D objects including attachment of images in coordinates for a photo-realistic visualization of 3D models. Visualization is available for functions that create 3D model and perform volumes calculation.
  • Raster images can be transformed in order to achieve correlation with the coordinates system of the plan and raster images can be both cut and framed at the same time with the process of transformation, raster images can be saved in different formats, colors format can be changed.
  • Point symbols (blocks) can be inserted, scaled, rotated or deleted based on point codes.
  • Linetypes can be changed automatically according to the codes interpretation file.
  • Areas can be detached using usual methods from cadastre such as parallel, parallel to one direction, perpendicular, proportional, through an obliged point and with obliged opening.
  • The grid can be automatically drawn.
  • Numbered sheets can be created in order to view or print plan by plan when there are chained plans.
  • Border and title block can be drawn automatically while taking into consideration the printable area and paper format.
  • Draw polygons, paths or points in Google Earth with the assistance of the TransLT library, another product of our company.
  • Transform the coordinates of points using TransLT models.
  • Program configuration was made in order to cover situations as different as possible.
  • Program works in different languages.
  • Also, the user can translate this program in any language.

TopoLT V16
New Commercial Annual Subscription


1 Year Subscription

Prices do not include VAT.

TopoLT V16
New Commercial 3-Years Subscription


3 Years Subscription

Prices do not include VAT.

Purchase TopoLT in a bundle with your favourite CAD application

Our other products


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Calculates the transformation parameters between two coordinates systems.

TopoLT + ProfLT + TransLT Pack

One cost-effective package