Sorry, but you can't get vectors, i.e. lines or points or polygons from Google Map. You'll need to use a different source to get the line work you need, for example use openstreet map.
Pros:
If you wish to get vectors, an alternative would be to go to openstreetmap.org. Once there, you can export, or download, your area free of charge. There are limitations on area--you can't be too zoomed out--you must be focused on a small area. When exported you'll have an .osm file.
Cons:
You cannot open an .osm file from AutoCAD. You'll need another program to open the .osm file then export using that other program to a file type AutoCAD can read such as a shapefile.
Note:
There are many other free downloadable alternatives besides openstreetmap. You can use your favorite search engine to find them. Use 'key words' in your search, e.g. free, download, shapefile, city name, roads, etc. The source you download depends on the type of map you wish to create. If you want line work, you can download shapefile. A shapefile can be roads, buildings, rivers, wetlands, soil maps, administrative boundaries such as cities, railroad lines, school districts, voting precincts, topographic contours and many more. You can use MAPIMPORT command to 'import' your downloaded shapefile to Map3D. MapImport command will 'convert' the shapefile into vanilla AutoCAD objects such as lines.
Chicagolooper
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