Importing & Exporting – Publish AutoCAD projects to Google Earth

First, we are going to set up the parameters for the publishing process. Click the “Publish to Google Earth” button. When prompted to select objects, especially if it’s the first time you use
this command… …it is recommended that you continue without any selection, in order to
setup the exporting procedure through the wizard. Press “Space”, and you will enter the “Publish to Google Earth” wizard. Next time you use this command, feel free to select the objects you wish
to publish… …and you will be automatically directed to the final step of the process,
thus saving time. Press “Next” and you will be prompted to enter a coordinate
transformation method. The “Use Coordinate System” option, which is selected by default, is the
preferred option… …as it automatically detects your previously selected “Zone & Units”. However, you can also select the “User-defined transformation”, where
you will be prompted… …to correlate a point from within AutoCAD, to a point in Google Earth. This approximative method, is usually selected, when the project you
wish to publish… …is not already set-up in a coordinate system. Once you’ve completed your selection, click “Next”, where you will be
prompted… …to select the objects you wish to publish, as well as set their
appearance in Google Earth. You can either select all the objects of the project… …or select only the ones you wish to publish, from the drawing. Complete your selection, by pressing “Space”. If your project contains text, it is recommended that you enable the
“Publish Text” option… …in order for text to appear on your published project. The “Render text as placemark” option, will publish text in your project in
the form of Google Earth’s placemarks… …so that you can manipulate it from within Google Earth. When selecting the “Publish points” option, points of your AutoCAD
project… …will appear as editable placemarks. The “Publish Entity Information” is used in order to export object data (e.g.
GIS information). As a result, objects will retain their data, when exported, thus enabling
the user… …to view the attached information from within Google Earth. This option however, is available only when using AutoCAD Civil 3D &
Map 3D. By selecting the “Retain line thickness”, the lineweights of your project
will remain when publishing to Google Earth. However, you should be careful when selecting it, as this can result in
progressively blurred representations of your project… …as the eye altitude of Google Earth increases. The “Display edges on filled areas” option, enables the display of the
polygons… …within which the fills & hatches of your project are placed. Finally, as Google Earth does not support curved objects, the “Circle
parts” & “Spline precision” options… …are used to establish the precision with which curved objects in your
project… …will be approximated when published to Google Earth. Once you’ve setup the publishing options, click “Next”. There, you will be prompted to select the “Save” location of your publish. By default, your exported file, is saved inside your AutoCAD project’s
folder. Here, you will also be prompted to select the file format of your published
project. As a rule of thumb, the .KMZ format is preferred for its full exporting
capabilities… …while the .KML format is only used for simple line work. Here, you can also select the “Elevation mode” of your project. The “Elevation relative to ground” option, publishes your project…. …with the Z values applied as an offset of the ground level in Google
Earth. This implies, that your project’s Z coordinates must be converted to
relative ones… …(based on a 0 height), before using this option. The “Elevation relative to sea level” option, is used to publish your project
in absolute coordinates. Note, however, that if, for whatever reason, there is a discrepancy
between your drawing’s Z values… …and those of Google Earth, your project might appear either elevated or
immersed into the ground. The “Drape entities on ground”, is the preferred option when working
with 2D drawings… …as your project will be clamped to ground level in Google Earth. Finally, you can also customize the “Placemark style” for your publish. You can choose from a list of available placemark styles, either from
AutoCAD… …or Google Earth… …or you can even add your own style. After you’ve completed the wizard, just click “Finish” and your project… …will be automatically converted to your selected file type. Open it, and your project will be published to Google Earth. Plex.Earth has now created a detailed model of your project, inside
Google Earth’s “Temporary places”… …complete with the layers of your original drawing. Every layer & object that has been published, can be turned “on” or “off”… …or edited in the same way as any Element in Google Earth You can now use your .KMZ or .KML file to send it to colleagues,
associates, partners or customers… …to easily share your published project, as a visualization in a real-world

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