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Introduction to Curves

 

Curves Fundamentals

 

Introduction

Instead of being straight, a line can be curved. To get a curved line, you can transform a straight line. To do this, in the Tools palette, click the Selection Tool. Position the mouse somewhere along the line. The cursor would appear with an arc:

 

Curves

To create the curve, click and drag in the direction of your choice, then release the mouse. Such a line is also called a curved segment or a segment.

Practical LearningPractical Learning: Drawing Lines

  1. Start Adobe Flash
  2. In the opening dialog box, click Flash File (ActionScript 3.0)
  3. In the Tools palette, click the Pen Tool
  4. On the Stage, click somewhere
  5. Click another point away
  6. Press Esc to dismiss the Pen Tool

Béziers Curves

To create a bézier curve, in the Tools palette:

  • In the Tools palette, click the Selection Tool
  • click the Subselection Tool. In the Stage, click the line or shape to select it. Position the mouse on the desired anchor, drag in the direction of your choice, release the mouse, and press Esc.

To give more options to a curve, when creating it, you can control its direction. To do this, in the Tools palette, click the Subselection Tool. In the Stage, click the line or shape to select it. Position

Introduction to Anchors

If you anchor.

Creating an Anchor

When .

Deleting an Anchor

If you.

Practical LearningPractical Learning: Drawing Lines

Drawing Lines and Shapes

Inste

Practical LearningPractical Learning: Drawing Lines

  1. Press Ctrl + A to select everything on the Stage
  2. Press Delete to remove everything
  3. In the Tools palette, click the Pen Tool
  4. On the Stage, click somewhere
  5. Then click any point away
  6. Click another point
  7. Click another point
  8. Click the first point to close the shape
  9. Press Esc to dismiss the Pen Tool

Maintenance of Curves

 

Introduction

As an object, a curve can be manipulated. It can be selected, copied, moved, modified, or deleted.

Selecting a Curve

To select a curve, in the Tools palette, click the Selection Tool, and click the curve on the Stage.

To select a section of a curve, in the Tools palette, click the Selection Tool. In the Stage, draw a fake rectangle that would touch from the part you want to select to an unselected part.

To select a series of curves, in the Tools palette, click the Selection Tool. Click one of the curves you want to select. Press and hold Shift.

To select everything in the Stage, press Ctrl + A or, using the Selection Tool, draw a fake rectangle that includes everything.

Copying a Curve

To copy a curve, first select it, then:

  • On the main menu, click Edit -> Copy
  • Right-click the curve and click Copy
  • Press Ctrl + C

To copy a series of curves, select them and use the same approaches to copy. To copy everything in the Stage, select and use the above techniques.

After copying the curve, you can paste it. To do that:

  • On the main menu, click Edit -> Paste
  • Right-click somewhere in the Stage and click Paste
  • Press Ctrl + V

Moving a Curve

To move a curve, first select it (you must first select it), then click and drag the curve to a different location. Use the same approach to move a segment of a curve, a series of curve, a series of objects, or everything in the Stage.

Deleting a Curve

To delete a curve:

  •  Right-click the curve and click Cut
  • Select the curve. On the main menu, click Edit -> Cut
  • Select the curve and press Delete

To select a series of curves or everything in the stage, make the selection as described earlier. Then delete.

Trimming a Curve

Trimming a curve consists of deleting a section of it. To do this, select the section (as mentionned earlier, using the Selection Tool, draw a fake rectangle that includes only the section you want to delete), then press Delete.

A Curve as a Path

As an object that starts starts from one point to another, or that connects two points, a curve is technically referred to as a path. On a straight curve, a path goes from a starting point to an ending point. On a series of curves, each path goes from one point to another.

In Microsoft Windows, a path is also considered as going from a starting point to the end point of one or a series of curves. This means that, on a series of curves, a path is considered as going from the starting point of the first curve to the end point of the last curve. If the shape is closed, the path is its whole border.

 

 

 


 

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