- Setting Selection Preferences
- Making Selections
- Resizing Graphic Elements
- Positioning Graphic Elements
- Flipping, Rotating, and Skewing
- Distorting Graphic Elements
- Modifying Fills and Strokes
- Modifying Shapes: Natural Drawing Tools
- Modifying Shapes: Bzier Tools
- Modifying Primitive-Shape Paths
- Converting Shape Types
- Practice Session
This chapter is from the book
This chapter is from the book
This chapter is from the book
Positioning Graphic Elements
If you aren’t happy with the position of an element, you can always move it. You can position elements visually by dragging them around on the Stage with the selection tool. You can also position a selection numerically by specifying a precise Stage location in x- and y-coordinates. You can enter the x- and y-coordinates in either the Property inspector or the Info panel.
To reposition an element via the Property inspector:
- With the Property inspector open, select an element on the Stage.
A label—for example, Drawing Object—appears at the top of the Property inspector, identifying the type of element selected. The Position and Size section of the Property inspector displays the x- and y-coordinates of the element’s registration point
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- To move the element, do one or both of the following:
- To position the element along the horizontal axis, use the X hot text to enter a new x-coordinate.
- To position the element along the vertical axis, use the Y hot text to enter a new y-coordinate.
Click the hot text to enter a precise value; drag the hot text’s invisible slider to choose a value interactively. The element moves to its new position
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How Flash Tracks Elements
To keep track of an element’s size and position on the Stage, Flash encloses each element in a bounding box—an invisible rectangle just big enough to hold the element. Flash then treats the Stage as a giant graph, with the top-left
corner of the Stage as the center of the x- and y-axis 
. The units of measure for the graph are those currently selected in the Document Settings dialog (to learn more about document
properties, see Chapter 1). The Property inspector and the Info panel display information about the size of the element (the
width and height of the bounding box) and the position of the element (the x- and y-coordinates for one important point in the element).
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By entering new values for Height and Width in the Position and Size section of the Property inspector or in the Info panel, you can change an element’s size. By entering new x- and y-coordinates in those panels, you can change an element’s position on the Stage. (For more information about resizing elements, see “Resizing Graphic Elements,” earlier in this chapter.)
Depending on which panel you use to enter values for an element, you can use either of two points to position an element: the registration point or the transformation point. For merge-shapes, drawing-objects, and primitives, the registration point is always located at the top-left corner of an element’s bounding box. For symbols, you determine the location of registration point, which stays the same for all instances of the symbol. For all types of objects, Flash initially places the transformation point at the center of the bounding box; you can reposition it using the free-transform tool. You can position the transformation point differently for individual symbol instances (see Chapter 7).
The Property inspector always tracks elements by the registration point. The Info panel lets you track elements by either point. You choose the point by clicking the Registration/Transformation-Point model to toggle between the two tracking styles. When a crosshair appears in the top-left corner of the model, the Info panel settings position and size elements by the registration point. When a circle appears in the bottom-right corner of the model, the Info panel settings position and size elements by the transformation point.
When you use ActionScript to dynamically move symbol instances at runtime, Flash always uses the registration point to position them.