Can't export closed polygons as polygon SHP file, only line SHP file
Your drawing titled HELP has both polylines and polygons. You can export the polygons to shapefile as polygon entities, no problem, but the polylines will need to be exported as polylines, not polygons.
If you wish to export the polylines as polygons, then you'll need to connect the lines and turn them into 'closed' polygons. You can tell whether a polygon/polyline is closed or not by clicking on an individual poly and scrolling to the bottom of the properties palette where under the Misc section, where CLOSED will display either YES or NO. Of course, clicking on an individual line may reveal the object is not a polygon at all and simply be a polyline instead and that's not what you're after.
In the image below, the colored hatch was applied to your drawing. Three colors were used to demonstrate that different areas exist which are adjacent to one another and not continuous. If an area is hatch-able, then the area is closed and means there are no 'leaks' where the hatch can escape.
If you right-click on an individual hatch entity, you'll get a shortcut menu with an option to GENERATE BOUNDARY. If exercise this option, a boundary will be drawn on the 'current layer' and be a CLOSED POLYGON. This, or these, closed polygons can then be exported as a polygonal shapefile. (You can delete the hatch after creating the boundaries, they're no longer needed.) This process will allow you to achieve your goal of sending your Cad line work out to shapefile format.
******Warning: The Generate Boundary operation can only be performed on a single hatch entity. AutoCAD will not allow you to perform it on a bunch of hatch entities at the same time so you'll have generate the boundaries individually.
Chicagolooper
Accepted solution
Topology? You don't need topology to export your polygons into a polygonal shapefile. Trust me, plain ol' polygons will do just fine.
In the two images bellows, you'll need to make two simple corrections. First, you have a stray polyline that you don't need (see image-1). For clarity, it is yellow. Simply delete this yellow line. It will be either on top of, or beneath, the gray polygon. It's an extra line so just delete it. Second, you'll need to change a triangular shaped polyline into a closed polygon. (See image-2) For clarity, it is yellow. Click on the yellow triangle, go to Properties palette, scroll to bottom, and in Misc section, under CLOSED, change from NO to YES. This will transform the polyline into a closed polygon. You want to change it because you can't export a polyline to a polygonal shapefile.
Once you have completed to corrections above, you can then export all your gray polygons into a polygonal shapefile..
Chicagolooper
