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Selection & transformation

You can access the Selection and Transformation tools by tapping on the 3rd icon at the top right of the interface. The icon switches when you are using either the selection or the transformation tool.
You can switch between the Selection and Transformation tools in the side-bar.

Selection

The Selection tool is the third tool of the side-bar.

On the right side of the side-bar are the options related to the current tool, here the Selection tool:

The Free-Hand selection allows you to draw the shape of your selection.
The Rectangle selection allows you to draw a rectangle of the area you want to select.
The Ellipse selection allows you to draw an ellipse of the area you want to select.
The last icon makes a selection of all the pixels contained in the current drawing sheet.

Once you have made your selection, everything not selected is grayed out.
Tap on the Selection icon to deselect.

Once you have set your selection, you can go back to the Brush tool to draw or fill only the selected area, or switch to the Transformation Tool to move and/or resize the selected pixels.

Transformation

Tap on the second icon at the top of the side-bar to switch to the Transformation tool.

You then have access to the transformation UI which is a box surrounding the selection with 8 handles and a rotation bar
If nothing is selected when you switch to the transformation tool, you will transform the existing pixels on the current sheet.
In the middle of the box is the pivot point which you can move anywhere you want.

The top and bottom handles allow you to resize vertically.

The right and left handles allow you to resize horizontally.

The corner handles allow you to resize both vertically and horizontally.

Touch the screen with one finger while you resize to keep the ratio.

Drag the rotation bar to rotate.

Move the pivot point located at the center of the box to change the behaviour of the transformation.

Hold one finger on the screen while you transform to snap the box to the main guidelines of the canvas. It also allows you to move the box while keeping its horizontal or vertical alignment.
The pivot point can also be snapped to the guidelines while using this gesture.

Enables the zoom and pan gestures. If it isn’t enabled, you will be able to transform the image with your fingers. When enabled, the transformation can only be made by handling the transformation box and you can zoom and pan with your fingers.

When it is disabled (white), you can use the following gestures to transform:

Pinch with two fingers to shrink, and pinch them apart to enlarge and keep the ratio, and rotate by making a rotation movement.

Values are displayed at the top of the canvas during the transformation, tap on them to change them manually. Tap on the values to change them and tap on the px to switch to %. The Lock allows you to keep or change the ratio.

Beside the side-bar are different options:

Mirrors the content horizontally.

Mirrors the content vertically.

Reapplies a previous transformation. It can only be used if at least one transformation was applied before.

Resets the transformation.

Cancels the transformation and switches to Selection.

Defines the quality of the transformation to High, Medium or Low.

You can apply the transformation by tapping on the Transformation icon, which switches back to Selection, or by moving to another frame. If you move to another frame where there is no pixel, it switches to Selection.

If you wish to apply the transformation to several sheets and several layers, you need to select the desired sheets in the timeline before using the transformation tool. To select several frames, double tap and drag over the sheets.

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