1. Surface styles
The styles are configurations of geometry and visualization that are created in AutoCAD, where type of lines, colors, layers, smoothing of curves or diverse conformations that will have the geometries created are established. Since it is not the case of this post, I will use a file that already has stored styles, at the end it is indicated how to download this file.
These styles can be viewed and modified in the "Settings" tab, can also be copied and made new.
2. Create the surface
For this, in the tool panel, we select "surfaces", with the right mouse button choosing "create surface". In the panel we indicate that it is a surface of type TIN, and we select the layer where it will be housed, in my case I will do it in C-TOPO.
As a name we assign it "Geofumadas terrain" and in the description "Test ground".
By doing OK we can see that the surface has been created, with the structure of objects that will characterize it. You can edit by right clicking on the surface and selecting "Surface Properties".
3. Add data to the surface
In this case, we will add a file of points, before we saw how to do it From an external database. Now what I have is a txt file with coordinates in the form x, y, z.
So for that, we activate the "Definition" option, and in this we look for "Point files". Here we do right button of the mouse choosing "Add".
In the panel we will indicate that what we are importing are points in the order ENZ Easting Northing Zelevation (X, Y, Z), and separated by commas. Then we look for the path of the txt file, and we do ok.
In this way, the points have been loaded into the file, but they have not only been entered as a layer of points but have become a surface operation.
In order to see this, we right click on the surface "Geofumadas Terrain" and Surface Properties, we will see in the "Definition" tab that in the lower panel appears as an operation.
To see the created surface, we right click on it, and select "zoom to". The surface should be visible, with the points in red and the level curves in white, because that is the standard style.
4 Customize the contour lines.
Now, to see the curves in another style, what we will do is right click on the surface "Geofumadas Terrain", then "Surface properties" and in the "Information" tab select the surface style.
In case of using "Borders & Contours", then apply we have this:
If you place "Borders & Contours & Slopes" the contours will appear with a colored gradient map.
There are other styles, so I leave them to try them out.
5. Other information.
It is also possible to see more data with respect to the surface created, in the tab "Analysis", always of "Surface Properties" like being a statistical table of the slopes, choosing range and pressing the arrow down.
6 Label the curves
To label the contours, what we do is, from the top menu "Surface / Add surface labels", here you can select different alternatives, we will use in this case "Contour - Multiple", then the polyline is marked and it is marking The quotas
If you want to do the exercise, here you can download:
The file Txt of the points
The dwg Which contains the template
The dwg With the elaborated exercise