From raster to BIM: Converting floor plans to 3D models

Vectorization of raster floor plans gives you the opportunity to convert a scanned floor plan into a vector drawing.
After importing the raster image, vectorization is performed automatically by ARCHLine.XP,
and you can place the result as a group anywhere on the floor plan.

Then, use the Scale to real distance command to calibrate the vector drawing by specifying a recognizable size, e.g. door width.

The Generative floor plan command interprets the 2D group and transforms it into a 3D model containing walls, doors, and windows.

Command location: Blueprint > Image Vectorizer

1. Import image

Import and place the raster image on the 2D floor plan view.
Make sure the DPI (dots per inch) value is set to 300 to 500. Anything less will most likely get you a pixelated scan.
The program will automatically perform the vectorization and then display the outline of the vectorized group (lines, polylines). 

2. Scaling distance

What you need to do now is to scale by manually adjusting the scale using the “Scale distance” tool. Try to find a recognizable distance in the image, such as a dimension or a known door length.
Select the group, press Enter and specify the distance by 2 points, then assign the new physical distance.
Then check if your converted vector design has the correct scaling/dimensions. 

4. Converting lines to walls - Procedural generated walls

Converting lines to walls and openings is an automatic process-

Enter the limit values in the dialog then press Ok.