» Measure tool
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Tool calculates distances and angles in the work area.
In the Toolbox, select the Measure
To calculate distance from one point in the work area to another, drag line between the points.
In the Info palette and in the Options bar, you can read the measuring line data:
X, Y - coordinates of the starting point
W - horizontal length
H - vertical length
A - angle relative to the axis
D1 - total length
D2 - total length of second line
To measure other distance, drag another measuring line, or drag an end of existing one to resize it (movie).
To measure an angle, crate a protractor by alt-drag ging (drag holding [Alt] key pressed) at an angle from one end of the measuring line.
To constrain the Measure
Tool to multiples of 45°, shift-drag (drag holding [Shift] key pressed).
To hide / show annotations use [Ctrl+H] shortcut.
To completely remove measuring line, drag it out of the image.