Michael. Have you thought about making a way to have window selection perform a drill down selection?

Hi Gunter, so maybe give this a try - you can select all the polygons and extrude them at once to produce a bunch of extruded solids. Right after doing that, the generator curves are still selected and either delete or hide those to get them out of the way.

Now to open up the top or bottom of those extrusions, go to the Scene browser, Types section. On the entry there for "Faces" hold down the Ctrl key and left-click on the selection dot area on the far right hand side of the item (as described here: http://moi3d.com/forum/index.php?webtag=MOI&msg=4438.21). A little filter icon will appear. This activates a selection filter on this item which means that only faces will be targeted for selection while this is set. You can now go to the Front or Right side elevation views and do a window select (starting on the left and dragging the mouse towards the right, that makes things only completely contained inside the window to be targeted) around the top or bottom area of those extrusions. Now just those top or bottom faces will be selected and you can now hit Delete to delete all of those. Now push Escape to clear the selection filter.

So now that has prepared each extrusion with naked edges to be targeted. A small customized script can help with the targeting - this script will look for a selected "joined surface" object (like one of these open ended extrusions that you've just created), switch selection to its naked edges and then run the nsided command. Then you need to right-click or push enter to finish the command and then click the next extrusion, push the shortcut key again, push enter or right-click to finish the nsided command, etc... This still needs individual actions for each piece but it's narrowed down to a click on an extrusion and then a keypress and another click for building each one. It should go pretty quickly. Probably do it in the Top view so it's easier to click on each extrusion.

To set up the helper script, go to Options > Shortcut keys and add a new shortcut key, and paste in the following for the Command part of the key (on the right-hand side):

script: /* nsided helper script */ var breps = moi.geometryDatabase.getSelectedObjects().getBreps(); if ( breps.length == 1 ) { var brep = breps.item(0); moi.geometryDatabase.deselectAll(); brep.getNakedEdges().setProperty( 'selected', true ); moi.command.execCommand( 'nsided' ); }

- Michael

Hi Burr,

> Michael. Have you thought about making a way to have window selection perform a drill down selection?

Yup, already done! ;)

The trick is to set a selection filter (Ctrl click the selection dot on the right hand side) on the Types > Faces entry in the scene browser. Once that is set all selection actions including window selection will only target faces directly. It's like being already "drilled in" to every object. The same thing works for edges as well.

So for example once that is set, you can do one strategic window select (use the "start on left and move towards the right" type of window that only targets things completely inside the window, right-to-left targets anything that intersects it) from the side view to select the top or bottom end cap faces and delete them.

Don't forget to Ctrl click on it again or just push Escape to clear the filter right after you're done using it, you don't want to forget that those are active.

- Michael

Just saw you above response. That's it. I haven't eaten at the filter buffet yet. I keep forgetting to get a plate! Good stuff.

Thanks very much Michael. I will give this a try.
Gunter