Create a polygon in AutoCAD and send it to Google Earth

In this post we will do the following processes: Create a new file, import points from a total station file in Excel, create the polygon, assign it georeference, send it to Google Earth and bring the image of Google Earth to AutoCAD

Previously we saw some of these procedures on foot, in this case we will see how to do them with AutoCAD Civil 3D 2008 ... a clear example of how what has evolved at the time was Civil Sourvey (Softdesk / cogo) and AutoCAD Map; at this point the 2008 version of Civil 3D includes both, which allows to handle georeferences and a link with Google Earth.

To begin, a new file is created, using a metric units template.

Create new drawing

1 Import Excel points

This is the same thing that Softdesk did, with the advantage that it is simplified and the visualization capacity is improved. The file we have was lifted with a total station, and from there we have exported it to a text separated by commas (csv) which is a format that Excel can open.

To bring the points is done «Points / import / import points»Then we choose the format, in this case PNEZD (comma delimited), Which means that the points are in order: Point, Northing (Y coordinate), Easting (X coordinate), Elevation (Z coordinate) and Description.

Import excel points autocad

Once entered, the points can be displayed in the left panel with its UTM coordinate.

2. Create the traverse

To create the polygon, we use the polyline (pline) command, and indicate that we want to draw it from the coordinates of the numbered points, for this we write in the command bar Pn, Then enter.

Then the system asks us the range of points, and we write 1-108, That is from the first point to the 108 ... and ready, the traverse is drawn.

To create excel poligono

3. Create the parcel

So far we have no database, but a simple dwg.

To create the plot we make «Parcels / create parcel from objects«. The panel that is displayed allows to choose the table to which it will be associated, we will choose «property«, The centroid data will be stored in the layer«C-prop»And the boundary in«C-prop-line»

The panel also allows us to choose which text will be inserted within the plot, as an associated centroid; we will choose the name of the plot, area and perimeter. Then we do "ok"

Create civil plots 3d

4 Assign projection

Now the coordinates we have need to be defined within a UTM zone (such as we did it With Manifold), which means to assign you system of projection and reference spheroid.

This is done with the right mouse button on drawing, then select «Edig drawing settings«.

There we choose in the tab «Units and zone«, We choose metric units, and degrees as angular units (degrees). Then we assign the UTM zone, Civil 3D allows us to choose the country, in this case we assign it «USA, Administration »because the plot is in Puerto Rico and then the Datum. In this case we assign WGS84, which would be NAD83 Puerto Rico.

Georeferencing autocadl

5 Send it to Google Earth

To send it to Google Earth, we use the wizard that is activated in «file / publish to Google Earth«.

In this panel the description is chosen, coordinate system in case they have not been previously defined, name of the kmz file and once it is ready the button «publish«.

From dwg to kml kmz

Once the kmz file has been created, you can see it in Google Earth with the «view»

Autocad export google earth

6 Bring the Google Earth orthophoto to AutoCAD

We explained this In another post, but basically it is done through «file / import / import Google Earth image«.

Autocad google earth images

Conclusion:

Do not do with AutoCAD and Excel what AutoCAD Civil 3D does ... Of course, for that you have to Pay what it's worth, Although there are things that makes it more practical PlexEarth And always on AutoCAD

Vía: AUGI, Mexico, Central America and the Caribbean, you can see a video of this process if you register.

18 Replies to "Create a polygon in AutoCAD and send it to Google Earth"

  1. martin velazque ... just check your menu bar there you have the option in output or output ... in civil2012

  2. This is very interesting my person has been working for more than ten years in this area I would like to learn more

  3. To do that, you occupy the Plex.Earth program, with which you can download the mesh of Google Earth elevation points, and make contour lines.

  4. Please I need to know how to get contours from Google Earth and if it can be exported to autocad or civil 3d, how and how to check my coordinates obtained from the field with the image described in Google earth thanks my email is Juveri1717@hotmail.com Thank you, I'm from Peru a hug

  5. Hi, this is very good, but please tell me how I do it in AutoCAD Civil 3D 2112, since in the last step of file / publish it doesn't give me the option in Google Earth, I will thank you, thanks and greetings from Mexico.

  6. Holasss
    I find it interesting, your contribution. I am a rookie in civil autocad, I would like to know how to see in 3d topographical terrain
    Thank you

  7. http://cahuin.design.officelive.com This is my website, thank you, I hope that the visit of one of you, I also have a small company of my father that provides services of Geomatics, GPS, and everything related to the profession, we provide services throughout Latin America, Thank you. and remember that it will be a pleasure to attend your queries and my little website, I am promoting it, you can visit it and write your questions thanks .. Hevert Cahuin H.

  8. Hello my name is Hevert I was born in Peru, but I work in Dom. Dom. I am a Calculist, Cadista, I finally work a little Geomatics and among other related things and I can tell you that there are many ways to pass the normal and civil Autocad polygons taking into account that the image is georeferenced, you can get a list of points and type them in the map power, you can also do it in the Map Source, and you export it to Google Earth, and also to export it from Google Earth, you save the image in format JPG and you import it in Autocad, be aware that you have to have the scale legend of Google earth and adjust to that scale in Autocad, it's simple, if you want any questions or questions you can write me on my website k I'm still designing it and My e-mail Hebert_311@hotmail.com, you can check online. thanks and it will be a pleasure to help you

  9. Alejandro, are you working with AutoCAD map or Civil 3D?
    This can not be done only with the normal AutoCAD

  10. This tutorial is interesting, I would like you to guide me how to convert UTM points to geographical coordinates, when I import the polygon to Google, it goes to another site and not in the corresponding place.
    Please I need it urgently. In any case can send me to my email the steps to follow.
    Thanks in advance

  11. The truth is that I don't understand this very well. My teacher, Kiere, we add geometric figures but with a number of sides and with an angle and I don't understand him if they can help me ………… ..

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  13. I am a Topographer in Bolivia, I found it interesting to learn the steps of creating polygon in AutoCAD and take to Google Earth, I would like to ask a favor to send me the following post with my subject «Bring the orthophoto from Google Earth to AutoCAD»

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