2.4. Frihandsutvalet (Lassoverktøyet)

The Free Selection tool, lets you create a selection by drawing it with the pointer.

You can use this tool in two ways. First create the starting point by clicking on your image. Then:

In both cases, double clicking on the end point closes the selection with a straight line.

In polygonal mode, this selection is a preliminary selection; ants are marching, but the small yellow circle is still present: you can copy the selection and, pressing the Backspace key, you return to the previous selection step (re-open the shape), and you can edit the selection.

Press Enter or double click inside the shape to validate the selection.

Pressing and releasing the mouse pointer allows you to mix free hand segments and polygonal segments. You can go outside the edge of the image display and come back in if you want to.

Free Select is often a good tool to use for «roughing in» a selection; it is not so good for precise definition. Experienced users find that it is often convenient to begin with the Free Select tool, but then switch to Quick Mask mode for detail work.

Du kan finne meir om utvala og bruken av dei i GIMP i kapitlet Utval. Funksjonar som er felles for utvalsverktøya er omtalte i avsnittet Utvalsverktøya.

[Notat] Notat

Har du tilgang på digitalt teiknebrett, vil du finne at dette er mykje enklare i bruk saman med lassoen enn datamusa.

Figur 14.13. Å blande frihandssegment og polygonale segment

Å blande frihandssegment og polygonale segment

2.4.1. Aktivering

There are different possibilities to activate the tool:

  • From the main menu: ToolsSelection ToolsFree Select.

  • By clicking the tool icon in the Toolbox.

  • By pressing the F keyboard shortcut.

2.4.2. Valtastar

The Free Select tool has key modifiers that affect all selection tools in the same way. See Selection Tools for help with these.

Backspace returns to previous selection step (removes last selection segment), Escape cancels all selection segments.

2.4.3. Å bruke verktøyet

Korleis du kan flytte dette utvalet er nærare omtalt i avsnittet å flytte utval. (Du kan flytte omrisset for utvalet med piltastane, men ikkje med musepeikaren).

Figur 14.14. Eit grovt utval gjort med lassoverktøyet

Eit grovt utval gjort med lassoverktøyet

2.4.4. Innstillingar

Figur 14.15. Tool Options for the Free Select tool

Tool Options for the Free Select tool

Normally, tool options are displayed in a window attached under the Toolbox as soon as you activate a tool. If they are not, you can access them from the main menu through WindowsDockable WindowsTool Options which opens the option window of the selected tool.

Dette verktøyet har ingen spesielle innstillingar utover dei som er omtalte i Del 2.1.2, «Innstillingar».

Since GIMP-2.10.12, selection modes work differently. Marching ants come with a continuous line, meaning that the selection is not validated yet and that you can still change the selection shape (mouse pointer comes with the Move icon). But you can't use (holding it pressed) Shift, Ctrl yet. You have to hit the Enter key. Then you can use (holding them pressed) Shift to add a selection, Ctrl to subtract a selection, Shift + Ctrl to intersect two selections. When you are satisfied with your changes, hit Enter key to validate the selection.