Adobe Flash Professional CS3 - Manual (Page 165)

FLASH CS3
User Guide
159
Change the fill of areas of a broken-apart bitmap
1 Select the Lasso tool, click the Magic Wand modifier, and set the following options:.
• For Threshold, enter a value between 1 and 200 to define how closely the color of adjacent pixels must match to
be included in the selection. A higher number includes a broader range of colors. If you enter 0, only pixels of the
exact same color as the first pixel you click are selected.
• For Smoothing, select an option to define how much the edges of the selection are smoothed.
2 To select an area, click the bitmap. To add to the selection, continue clicking.
3 To fill the selected areas in the bitmap, select the fill to use.
4 To apply the new fill, select the Paint Bucket tool and click anywhere in the selected area.
Use the Eyedropper tool to apply a fill
1 Select the Eyedropper tool and click the broken-apart bitmap on the Stage. The Eyedropper tool sets the bitmap
to be the current fill and changes the active tool to the Paint Bucket.
2 Do one of the following:
• To apply the bitmap as a fill, click an existing graphic object with the Paint Bucket tool.
• Select the Oval, Rectangle, or Pen tool, and draw a new object. The object is filled with the broken-apart bitmap.
To scale, rotate, or skew the bitmap fill, use the Paint Bucket tool.
Convert bitmaps to vector graphics
The Trace Bitmap command converts a bitmap into a vector graphic with editable, discrete areas of color. You manip-
ulate the image as a vector graphic, and you can reduce file size.
When you convert a bitmap to a vector graphic, the vector graphic is no longer linked to the bitmap symbol in the
Library panel.
Note: If the imported bitmap contains complex shapes and many colors, the converted vector graphic might have a larger
file size than the original bitmap. To find a balance between file size and image quality, try a variety of settings in the
Trace Bitmap dialog box.
You can also break apart a bitmap to modify the image with Flash drawing and painting tools.
1 Select a bitmap in the current scene.
2 Select Modify > Bitmap > Trace Bitmap.
3 Enter a Color Threshold value.
When two pixels are compared, if the difference in the RGB color values is less than the color threshold, the two
pixels are considered the same color. As you increase the threshold value, you decrease the number of colors.
4 For Minimum Area, enter a value to set the number of surrounding pixels to consider when assigning a color to
a pixel.
5 For Curve Fit, select an option to determine how smoothly outlines are drawn.
6 For Corner Threshold, select an option to determine whether sharp edges are retained or smoothed out.
To create a vector graphic that looks most like the original bitmap, enter the following values:
• Color Threshold: 10
• Minimum Area: 1 pixel
• Curve Fit: Pixels
• Corner Threshold: Many Corners