Bentley Site is one of the tools within the package known as Bentley Civil (Geopak). We are going to see in this case how to create a terrain model based on an existing 3D map.
1. The data
I am using a XNUMXD file, which contains a triangulated model in which each object is a 3Dface, which Microstation calls shapes.
2. Management of the .gsf project
Create project
The .gsf files (Geopak site file) store the information of the different Geopak applications and are a kind of binary database. To create one, do the following:
Site moedeler > Project Wizzard > Create new project > Next > name it “terreno san ignacio.gsf” > Next.
Then the project bar appears, we choose:
Project> Save
Open project
Site modeler > Project Wizzard > Open existing project > Browse.
And we look for the newly created project and select Open.
3. Store objects in the .gsf
Now we require that the .gsf contain the information of the map, for this we must tell it what kind of objects they are.
Create new model
New Site model > we assign the name to the model “dtm san ignacio” > ok.
Store graphics
Site modeller > project wizzard > Import 3D graphics
In the panel that appears, we assign the name of the object, in this case “Dtm”, we specify the characteristics of tolerance and type of objects, in this case as void. could have been selected contours In case of having the level curves, Break lines, boundaries, etc.
Then with the button Select elements, we select all the objects in the view. In order not to complicate the selection, we use the block option and make a box around all the objects.
we press the button Apply, and in the lower panel the object counter appears in descending order, while it is entering the project.
Up to this point, Geopak understands that all those objects are a mesh of interconnected objects.
4. Export to TIN
Now what we require is that the created objects can be exported as a digital model (TIN), for this we do:
Export Model / Object
And in the panel we choose that what we will export will be only the object, and the type; it can be a binary or Land XML file. we choose type TIN File.
We also define the name of the file and it is possible to establish a vertical offset. As we will send all the objects we do not choose a Boundary.
And there you have it, it's a matter of choosing how you want to see the TIN; with contour lines, every so often, view or in vector, we will see that in another post.
