Adobe illustrator 10 Manuale Utente
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Adobe Illustrator Help
Drawing
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Press C to switch between an open and closed arc.
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Press F to flip the arc, keeping the origin point constant.
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Press Up Arrow or Down Arrow to increase or decrease the arc’s angle.
To draw an arc segment by specifying properties:
1 Select the arc segment tool, and click where you want to place the segment.
2 In the Arc Segment dialog box, enter the options you want.
3 Select Fill Line if you want the line to use the current fill color (otherwise the fill is set
to none).
to none).
4 Click OK.
Note: The square icon to the right of the Length X-Axis option sets the origin point for the
arc. To change the origin point, click the square on any of the four corners.
arc. To change the origin point, click the square on any of the four corners.
Drawing spirals
The spiral tool creates a spiral-shaped object of a given radius and number of winds;
that is, the number of turns that the spiral completes from start to finish.
that is, the number of turns that the spiral completes from start to finish.
To draw a spiral by dragging:
1 Select the spiral tool .
2 Position the pointer at the center of the spiral you want to create, and drag until the
spiral is the desired size.
spiral is the desired size.
3 As you drag, you can do any of the following:
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Drag the pointer in an arc to rotate the spiral.
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Shift-drag to constrain the tool to multiples of 45 degrees or to the angle specified in
the Constrain Angle text box in the General Preferences dialog box.
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Hold down the spacebar to move the spiral.
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Press or hold down Up Arrow or Down Arrow to add or delete winds.
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Press ~ (tilde) to create multiple spirals.
To draw a spiral by specifying dimensions:
1 Select the spiral tool, and click where you want to place the center of the spiral.
By default, the Spiral dialog box displays the dimensions of the last spiral you drew.
The unit of measure is determined by the unit of measure set in the Document Setup or
Units & Undo Preferences dialog box.
The unit of measure is determined by the unit of measure set in the Document Setup or
Units & Undo Preferences dialog box.
2 In the Radius text box, enter the distance from the center to the outermost point in the
spiral.
spiral.
3 In the Decay text box, enter the amount by which each wind of the spiral should
decrease relative to the previous wind.
decrease relative to the previous wind.
4 Click the arrows or enter the number of segments in the Segments text box. Each full
wind of the spiral consists of four segments.
wind of the spiral consists of four segments.
5 For Style, select the counterclockwise or clockwise option to specify the direction of the
spiral, and click OK.
spiral, and click OK.