Practical experience and understanding of Photoshop’s free transformation tool – design knowledge

In Photoshop (hereinafter referred to as PS), we often encounter the need to deform many objects. “Free Transform” is one of the powerful production methods to complete this function. Mastering its usage will bring great benefits to the work. convenient.

Everyone knows that there is a transformation menu under the Edit menu in PS. Its submenus include zoom, rotation, etc. Beginners often understand these menus by memorizing them. In fact, this is The learning effect is not good.

Here I make a brief summary of “free transformation” based on some of my own experience and understanding, and dedicate it to beginners.

Shortcut key for free transformation: Ctrl+T

Auxiliary function keys: Ctrl, Shift, Alt.
The Ctrl key controls free changes; the Shift key controls direction, angle and proportional zooming in and out; the Alt key controls center symmetry.

Do not press the first or third keys, drag with the mouse

1. Press the left button of the mouse on the corner of the deformation box => a free rectangle with unchanged diagonal corners (can be dragged in the opposite direction to form a flipped figure);
2. Press the left button of the mouse on the edge of the deformation box => A free rectangle of equal height or width with unchanged opposite sides;
3. Drag the left mouse button outside the deformation box => Free rotation angle, accurate to 0.1 degrees. (Version 5.0 passes the “info” information panel “F8”; versions 6.0 and above can be defined directly in the option bar)

2. Press Ctrl and drag with the mouse

1. Press the left button of the mouse on the corner point of the deformation box => a free parallelogram with right angles;
2. Press the left button of the mouse on the edge point of the deformation box => a free parallelogram with unchanged opposite sides;
3.Ctrl has no effect on the angle.
4. Special case (as shown in the picture), when a corner point is dragged outside the opposite side (sorry, the specific position and angle are not calculated), distortion will appear as shown in the picture.

State after transformation:

3. Press Shift and drag with the mouse

1. Press the left button of the mouse on the corner of the deformation box => Zoom in or out in equal proportions (can be dragged in the opposite direction to form a flipped figure);
2. Press the left button of the mouse on the edge of the deformation box => (Same, that is, no effect);
3. Drag the left mouse button outside the deformation box => 15° incremental rotation angle, which can be used for 90° and 180° forward and reverse rotation.

Four. Press Alt and drag with the mouse

1. Press the left button of the mouse on the corner point of the deformation box => Free rectangle with symmetrical center;
2. Press the left button of the mouse on the edge point of the deformation box => Free rectangle of equal height or width with symmetrical center;
3.Alt has no effect on the angle.

5. Press Ctrl+Shift and drag with the mouse

1. Press the left button of the mouse on the corner point of the deformation box => a right-angled trapezoid with right angles;
2. Press the left button of the mouse on the edge point of the deformation box => equal height or equal height of the opposite sides Wide free parallelogram;

Six. Press Ctrl+Alt and drag with the mouse

1. Press the left button of the mouse on the corner point of the deformation box => a centrally symmetrical free parallelogram with the adjacent two corners unchanged;
2. Press the left button of the mouse on the edge point of the deformation box => two adjacent sides Position-invariant center-symmetric free parallelogram;

Seven. Press Shift+Alt and drag with the mouse

1. Press the left button of the mouse on the corner of the deformation box => a rectangle that is enlarged or reduced in equal proportions with symmetry in the center;
2. Press the left button of the mouse on the edge of the deformation box => a rectangle with equal height or symmetry in the center Free rectangle with equal width (Shift has no effect, same as 4);
3. Only Shift controls the angle.

Eight. Press Ctrl+Shift+Alt and drag with the mouse

1. Press the left button of the mouse on the corner point of the deformation box => Isosceles trapezoid, triangle or relative isosceles triangle;
2. Press the left button of the mouse on the edge point of the deformation box => Center symmetry, equal height or equal height A wide free parallelogram.

In fact, when you are proficient in using it, you will know that if you can fully understand the “function keys: Ctrl, Shift, Alt”, the Ctrl key controls free changes; the Shift key controls the direction, angle and equal proportion of zooming in and out; the Alt key controls “Control Center Symmetry.” means that you don’t need to look at the so-called eight changes below. If you are familiar with the three keys of Ctrl, Shift, and Alt, it will also have great control over other things such as channels, layers, masks, etc. Help

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