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9. Reference Polyline From Profile

Author: iMemorySoft

Rank:  9th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=3240925303390256952&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2017 to 2020

Price:  Free

Feature brief description: In the civil design, a reference/guide line created of an existing ground profile can be helpful. This tool can help to make a polyline by vertically move or offset from Profile as a reference/guide line.

Move mode:

• Make a polyline which has same shape with an existing Profile, then move it vertically upward (positive distance value) or downward (negative distance value).

Offset mode:

• Make a polyline which has same shape with an existing Profile, then offset it to upside (positive distance value) or downside (negative distance value) of the Profile.

Pros: Free and easy to use

Cons: Have been dropped since 2019.

10. TL Random Surface Generator

Author: Todor Latev

Rank:  10th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=4836895276643368500&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: This app will generate realistic continuous tin surfaces across the entire Autodesk® Civil 3D® digital space (similar to the endless Minecraft terrain)

The procedural terrain generation algorithm is the improved Perlin Noise. Perlin noise is a type of gradient noise developed by Ken Perlin in 1983. 

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

11. TL 3D Polyline to Alignment and Profile

Author: Todor Latev

Rank:  11th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=4492158779292497395&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: Automatically creates an Autodesk® Civil 3D® alignment and profile from existing 3D polyline (3Dpoly) objects.

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

12. Alignment SONE to worksheet

Author: NTCL Soft

Rank:  12th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=5392255432243787365&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2016 to 2025

Price:  Free

Feature brief description: This app aims to batch inquiry Autodesk® Civil 3D® alignment Station, Offset (SO) based on pre-selected Northing, Easting (NE) values and vice versa. Results are directly exported to Microsoft® Excel® worksheet.

Input (SO or NE) and output (NE or SO) values are taken from and returned to the Excel® worksheet for further processing. This tool may help ease the process of enumerating/ sorting structures located along horizontal alignments such as culverts, signs, abutments, and piers... The structure location list in Excel can be saved and reused to create attribute block instances later.

Pros: Free and easy to use

Cons: Not support Station equation in Free version

13. Multi Surface Profiles

Author: Digi-Ants

Rank:  13th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=6048968207373152372&appLang=en&os=Win64

Platform: Civil 3D 64-bit 2018 to 2021

Price:  Free

Feature brief description: This plug-in helps users to create surface profiles of many alignments with one click in Civil 3D. Naming a template is also supported so you can name new profiles by alignment name and surface name. 

• Select surface(s) under each alignment to create surface profile for that surface(s).

• Select option to create surface profiles.

• Enter name template for new surface profiles

• Click Create Profiles to create surface profiles.

Pros: Free. Easy to use.

Cons: Haven't updated to support Civil 3D 2022 to 2024 and Civil 3D 2025

14. TL Add Point To Point Group

Author: Todor Latev

Rank:  14th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=2041986595746103800&appLang=en&os=Win64

Platform: Civil 3D 64-bit 2019 to 2024

Price:  Free

Feature brief description: The Autodesk® Civil 3D® process for adding cogo points to a point group involves opening the prospector, locating the point group and opening the properties window, switching to the include tab, clicking the Selection set in drawing button and finally dismissing the Point group properties window.

This app provides a shortcut for this task by providing a command line whereby you're prompted for a cogo point selection and the app handles the rest without any graphical user interface elements getting in the way. This may come in handy while manually going through a lot of survey points, for example, and categorizing them into various groups.

Note that the app will only manipulate the "Include > with numbers matching" query and will include/exclude the point numbers from the list. It will not touch any of the other options or the Exclude tab

Pros: Free and easy to use.

Cons: Haven't updated to support Civil 3D 2025

15. Enhanced section views creation

Author: NTCL Soft

Rank:  15th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=5636972889137368454&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2016 to 2025

Price:  Free

Feature brief description: Section view creation in Autodesk® Civil 3D® is quite complicated with lots of parameters. Section views elevation range is hard to control & plot pages often leave large blanks.

This App will help ease the section view task by adding the following features:

• Flexible section views arrangement:  Number of section views per row/ column is fixed by users 

• New method for determining elevation range: Elevation range is now implicitly set through the minimum distance below & above sections

• Configuration saved to file: Previous session parameters are auto saved on Exit, and manually Reload if needed

• Enhanced style setting table: Section name replaced by Section source name, also a source type column is added for clarification

App creates Individual section views, NOT section view group. The following pros & cons of individual section views created by this App should be aware of:

Pros:

• Each section view can be manually moved to another position. Position not changed after an update event (eg: annotation scale changed, nearby section view deleted);

• The elevation range is implicitly calculated for each section view & recalibration for a  section view row; which can minimize blanks & save plot paper;

Cons: 

• Section views offset range should not be less than the left & right Offset value of sample lines;

• When the annotation scale changes, section views should be deleted and re-created;

• Section view band set cannot be replaced after creation (a critical error will occur if doing so).

Pros: Free and easy to use

Cons: Not support Imperial drawing

16. TL Alignment Tool

Author: Todor Latev

Rank:  16th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=8671758305631424396&appLang=en&os=Win64

Platform: Civil 3D 64-bit 2019 to 2024

Price:  Free

Feature brief description: This tool aims to improve the workflow of designing alignments in Autodesk® Civil 3D®, particularly when alignment contains overlapping segments, which is usually the case with ramps.

Start by laying out the alignment segments as polylines. Create an alignment, just an initial segment is enough. Invoke the TLAlignAddPoly command and select your alignment. From that point you can start gluing polyline segments together into your main alignment using the TLAlignAddPoly command.

If a particular segment does not land where you expect it's usually due to a wrong polyline direction orientation. You can easily reverse the direction by using the TLReverseCurveDir command.

Pros: Free and easy to use.

Cons: Haven't updated to support Civil 3D 2025

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