| 5.5. Målingar | ||
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5. Other Tools |  |
| 5.5. Målingar | ||
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5. Other Tools | |
The Measure Tool is used to gain knowledge about pixel distances in your working image. By clicking and dragging the mouse button, you can determine the angle and number of pixels between the point of click and where the mouse pointer is located. The information is displayed on the status bar or can also be displayed in the Info Window.
A common use case for «Measure» is to calculate the angle of rotation when horizon is uneven on a photo. Since GIMP-2.10.4, you no longer have to perform the rotation manually to straighten horizon: after measuring the angle, just click the new Straighten button.
This button can be used in straightening horizontal or vertical lines up: the starting point comes with a small bar that shows the direction.
Når du held musepeikarren over endepunktet vil peikaren vise eit flyttemerke. Klikk for å lese av målinga.
Informasjonen blir vist på statuslinja nedst i biletvindauget:
Avstanden mellom startpunktet og musepeikaren målt i pikslar.
Vinkelen i kvar kvadrant, frå 0° til 90°.
Peiarkoordinata i høve til startpunktet.
There are different possibilities to activate the tool:
From the image-menu: → .
By clicking the tool icon
in the Toolbox.
While holding down the Shift key, click and drag from an existing endpoint to create a second measurement line from this endpoint. The angle between the two lines will be displayed. Any endpoint can be moved by clicking and dragging. So, you can measure any angle on the image:
Figur 14.174. Shift modifier
Click on start point and drag following a side of the angle.
Then, Shift-click on start point and drag following the other side of the angle: you get the value of this particular angle.
Ved å halde nede Ctrl-tasten medan du utførar målingane, blir verktøyet avgrensa til å måle rette linjer i vinklar som er multiplar av 15º, dvs. 0º, 15º, 30º osv.
Ctrl key pressed and click on an end point
creates a horizontal guide. The mouse pointer goes with
the
icon.
In Horizontal or Vertical Orientation modes, Ctrl also toggles between Horizontal and Vertical.
Alt key and click on an end point creates a vertical guide.
denne tastekombinasjonen og klikk på ei målelinje for å flytte målinga.
Ctrl + Alt medan du klikkar på eit endepunkt, vil det bli sett inn ei vassrett og ei loddrett hjelpelinje.
In the Auto mode (default), will snap to the smallest angle between the measure line and the vertical or horizontal direction. Horizontal and Vertical allow to override this behavior by specifying explicitly what it should be.
This option will display an Info Window dialog that details the measure tool results. The results are more complete than on the status bar.
Transform, Interpolation, and Clipping are treated in Del 3.1, «Felles eigenskapar». Here is an example for straightening a path:
Original image
Draw path
Make path visible
Draw measure line on the segment you want to straighten
Straighten
Figur 14.176. «Straighten» clipping options
Draw measure line
Straighten with «Adjust» option
Straighten with «Clip» option
Straighten with «Crop to result» option
Straighten with «Crop with aspect» option
: click on this button to perform straightening.
Det er ikkje råd å måle flater direkte med dette verktøyet. I staden kan du prøve verktøyet histogram, som mellom anna viser kor mange pikslar det er i utvalet.
