Shape Snap to grid when shape is off grid, How to ?

For me this works fine:

Goto move mode

set find filter to shapes

Hover over the corner of the shape which you want to move.

RMB->snap pick to-> segment vertex

Now the shape corner is attachted to the cursor and you can place it on any grid you want.

I've placed the 'snap pick to vertex' in my ENV file so I can do this with a single keystroke:

funckey v "prepopup;pop dyn_option_select 'Snap pick to@:@Segment Vertex'"

Bram

Allegro does *not* have any "memory" of/for shapes.  However, there are two key grid systems in Allegro: etch and non-etch.  Within etch, each layer can have its own grid.  I suspect you might have changed grid for either the wrong type or the wrong layer.  The technique supplied by Bram is probably the easiest for moving a shape by its vertex to a new grid point.  If the shape is sized oddly you might find you'll be chasing the grid around if it's too coarse.

Hi Red & Bram, Bram's suggestion works good and the macro helps too. In testing things at this end I noticed something odd in 16.6. If I do exactly as Bram says, a shape that has some of the shape off grid can be snapped back to the grid and it works good. Now to an oddity.

If I have the find filter for shapes checked and then hover over a segment of the shape so it's bound is highlighted then do a RMB Move followed by a RMB snap pick to segment vertex I am unable to get the shape to snap to the new grid point. My thinking was that doing this would achieve what I was after. Kind of makes sense to me. Like the object is highlighted and I want to move and also snap to a vertex.

I normally use RMB move as it is less mouse travel. It seems that the Move menu item and the right click RMB move are not working the same. Maybe this is by design ?. Was thinking RMB Move
and menu item Move should work the same for this operation.

Red on my grid I have a macro that changes them but it keeps everything the same for layers, Etch, Non etch etc. All is working now but i'm curious about the RMB Move option..

Thanks

Paul.

When you do a RMB->move (with the mouse above an element) then it just snaps at the current cursor position. So re-snapping it to eg. a vertex is not possible in this way.

Try this to understand the selection / command function order:

-Idle command,

-find filter to shapes,

-click on a shape so it is selected.

Then use the 'move' command (not from RMB).  You will notice that the shape is attachted to your cursor at the point where you've selected the shape.

This is somewhat the same as you would RMB click on a shape, the cursor position at the RMB action is then your selection point.

Now the other way, if you don't select anything and start a 'move' command nothing is selected or attached to the cursor. If you now snap to an element it shall be attached to your cursor at the snapped location.

Bram, that's a good explanation. Works well

Thanks

Paul.