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### 6.4. Measure Tool

The Measure Tool is used to gain knowledge about pixel distances in your working image. By clicking and holding 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.

When you pass the mouse pointer over the end point it turns to a move pointer. Then if you click you can resume the measure.

#### Status Bar

Informations are displayed in the status bar, at the bottom of the Image window. From the left to the right:

Die gemessenen Werte werden in der Statuszeile am unteren Rand des Bildfensters angezeigt. Die angezeigen Werte von links nach rechts:

- Distance from the origine, the upper left corner of the image.

- A button with a dropping list to select the measure unit. Default is pixel.

- A zoom button to enlarge if you want more precision, or reduce if your image is larger than the canvas.

- Distance between the origine point and the mouse pointer followed by the angle in every quadrant, from 0° to 90°.

#### Activate Tool

- The Measure Tool can be called in the following order, from the image-menu: Tools/ Measure .

- The Tool can also be called by clicking the tool icon:

#### Key modifiers

Defaults

  Ctrl key pressed while dragging the pointer performs a strict horizontal measure.

  Alt key pressed while dragging the pointer performs a strict vertical measure.

  Ctrl key pressed and click on the end point places a horizontal blue dotted guide.

  Alt pressed and click on the end point places a vertical blue dotted guide.

  Ctr-Alt key combination allows to move the measure.

#### Options

Overview

  There is only one available option for the Measure Tool.

Use Info Window

  This option will display an Info Window dialog that details the measure tool results. The results are more complete on the status bar.

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