Hi Luca
in V3.5a certanly there are different pick methods in 2D and 3D,
- in 2D the "box" method works readily.
- otherwise , in 2D and 3D you have the manual left right click, for group selection toggling, as well as CTRL-A (select al) and CTRL-D (DEselect all) I do not know of any "select complement" (PS: COMSOL developpers: could be a good idea, no ? ;) apart for the manual meshing commands.
- in 3D, by default you are in "no-select" mouse mode, you must deselect the "rotate" (Clockwise circular arrow, top of first icon column to the left of the graphic window) to allow "box selection", by choosing the "attention to": domains, subdomains, edges or points you also decide on which boundary/element you act upon.
Then when you have many items in complex 3D you may select (two red top icons, 2nd column to the left of the graphics view) take all or toggle items, that is when you select once along an edge close to a point, you get sequentially all, respectively each edge in a counterclockwise fashion. The same when you select in 3D an area with several clicks, you toggle each level from the wiewer down to the list item, along the line of sight.
You can also remove geometry from the window, unfortunately, you cannot reopen the "hidden box" and get back only one item, you must get back eveyone and then remove them one by one, or group by group again (PS: comsol developers: another hint for you ;)
When you have heavy models >500 edges etc, selection is difficult, you must play with the zoom and be very systematic, but the color scheme is helping too, make named groups as soon as possible (even if the group naming window becomes quickly very tiny !) it helps
So many ways out, hope it helps
Good luck
Ivar
in V3.5a certanly there are different pick methods in 2D and 3D,
- in 2D the "box" method works readily.
- otherwise , in 2D and 3D you have the manual left right click, for group selection toggling, as well as CTRL-A (select al) and CTRL-D (DEselect all) I do not know of any "select complement" (PS: COMSOL developpers: could be a good idea, no ? ;) apart for the manual meshing commands.
- in 3D, by default you are in "no-select" mouse mode, you must deselect the "rotate" (Clockwise circular arrow, top of first icon column to the left of the graphic window) to allow "box selection", by choosing the "attention to": domains, subdomains, edges or points you also decide on which boundary/element you act upon.
Then when you have many items in complex 3D you may select (two red top icons, 2nd column to the left of the graphics view) take all or toggle items, that is when you select once along an edge close to a point, you get sequentially all, respectively each edge in a counterclockwise fashion. The same when you select in 3D an area with several clicks, you toggle each level from the wiewer down to the list item, along the line of sight.
You can also remove geometry from the window, unfortunately, you cannot reopen the "hidden box" and get back only one item, you must get back eveyone and then remove them one by one, or group by group again (PS: comsol developers: another hint for you ;)
When you have heavy models >500 edges etc, selection is difficult, you must play with the zoom and be very systematic, but the color scheme is helping too, make named groups as soon as possible (even if the group naming window becomes quickly very tiny !) it helps
So many ways out, hope it helps
Good luck
Ivar