ProfLT is a specialized civil engineering and surveying plugin developed by CADWARE Engineering used to configure, draw, and modify longitudinal terrain profiles and cross sections directly within CAD platforms. It functions as an automation tool that eliminates the tedious manual drawing of terrain elevations, gradients, and distances. Key Features and Capabilities
Profile Generation: Automatically creates longitudinal and cross profiles using 2D or 3D polylines, point codes, or full 3D terrain models.
Predefined Templates: Features built-in layouts optimized for specific infrastructure projects, including roads, high-voltage electrical lines, sewage networks, and water lines.
Automation Tools: Features point insertion from external coordinate files, automatic joining of lateral points, and automatic layout alignment to fit physical pages for printing.
Gradients & Elevations: Instantly calculates design elevations, slopes, heights of platforms, and draws corresponding vertical alignment labels.
File Exporting: Exports profiles into dedicated third-party engineering formats such as Micropiste or SdrMap files. Software Compatibility
ProfLT does not run as a standalone application. Instead, it integrates directly via the APPLOAD command into major CAD platforms: AutoCAD BricsCAD ZWCAD GstarCAD
It is frequently bundled and paired alongside TopoLT (used for 3D terrain modeling and volume calculations) and TransLT (used for geodetic coordinate transformations) to form a complete topography suite. Step-by-Step Workflow Guide
[Import Survey Data] ➔ [Select Profile Axis] ➔ [Apply Template] ➔ [Calculate Gradients] ➔ [Page Layout & Print] 1. Loading the Software
Open your preferred CAD platform and type APPLOAD into the command line. Navigate to the installation folder, select ProfLT.lsp, and hit load. The ProfLT toolbar and menu will integrate into your workspace. 2. Importing Data
Insert topographical data points directly from your field surveyor’s coordinate files. If you have a 3D terrain model generated from TopoLT, ProfLT can pull the profile data directly from that surface. 3. Defining the Alignment Axis
Draw or select a 2D or 3D polyline that represents the center line of your project (e.g., the center line of a new road or water pipe). 4. Applying Templates and Generating Profiles
Select the Longitudinal Profile or Cross Section command. Choose a preconfigured template corresponding to your industry (e.g., Sewage) so that the relevant data bands (stationing, existing elevations, proposed elevations, distances) are correctly arranged. 5. Modifying and Designing
Use the internal calculation tools to define your proposed platform heights or pipe slope percentages. The software will automatically update the vertical labels, slopes, and cut/fill indicators. 6. Layout and Printing
Preview the final cross-sections or longitudinal views. Use the built-in sheet layout tool to automatically arrange the long profiles across multiple sheets depending on your target plotter or printer size. How to Get Started ProfLT, GstarCAD soft ,Reliable and Affordable CAD Software
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