If I have drawn a polyline (pol1) under other closed polyline to use as a contour, even if you select closed polyline (pol2), the program uses the polyline below.(pol1).
This bug succes in Civil 3D 2012 SP1
that does not work.
I have the polyline (pol2) top.
The program should not take the polyline below if I haveselected that.
I'm not familiar with cntrl, but tapping the tab key with cross hair over will cycle through the entities to be sure of selection
excuse me, i refer to "boundaries" not "contours"
Just to clarify, when you talk about the polyline line being "below" the other one, are you referring to the elevations of the polylines? If so, AutoCAD does not look at the elevations of the objects when selecting them, but it will look at the draw order. Select the one you want to be "below" the other, right click, choose "Display Order" and then "Send to back" (or something along those lines).
Hope this helps (if that is indeed what the issue is).
The last object drawn, by default, stays on top of the display list: if you wanna select something below, you should use the CTRL toggle mode or, alternatively, press simultaneously SHIFT-SPACE
If you're on 2012, at the bottom of your screen is Selection Cycling (right end of the toggle buttons.) Turn that on. Now when you select, you'll get a dialog that lists the possible choices. Pick the one you want and AutoCAD will make that your selection.
If you're on 2010 down to 2008 (I think) use Shift+Spacebar to turn on selection cycling. You won't get a dialog. In earlier versions, use Ctrl to turn on Selection Cycling.
One more method.
Select both with a crossing window, type R into the command line and hit enter. This allows you to remove objects from the selection set. Select the pline on top (last drawn) and hit enter again. This first drawn is added and the last drawn is not.
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