raster to vector
Out of context: Reply #9
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- ozhanlion0
The lines and shapes in bitmap images often contain gaps that become visible when you enlarge your view of the image. You can control the accuracy with which the Auto Trace tool traces these gaps using the Tracing Gap option in the Type & Auto Tracing Preferences dialog box.
The tracing gap tells the Auto Trace tool to ignore gaps that are equal to or less than the number of pixels you specify. For example, setting the distance to 1 tells the Auto Trace tool to ignore gaps of 1 pixel or less.
The Auto Trace Tolerance option specifies how closely the Auto Trace tool follows the bitmap image, and how closely the Pencil tool follows your mouse movements. In auto tracing a bitmap, a lower value follows the shape of the bitmap more closely, but also creates more anchor points and curves, while a higher value results in a less accurate tracing with fewer anchor points and curves.
Note: The Auto Trace tool is sensitive to the visual size of the object. That is, even if a bitmap image has a high ppi (pixels per inch) value, if it is too small, you may get poor results. In this case, you can temporarily enlarge the bitmap in Illustrator before autotracing it, and then resize the resulting autotraced object as needed.
To set the auto trace gap distance:
Choose Edit > Preferences > Type & Auto Tracing (Windows) or Illustrator > Preferences > Type & Auto Tracing (Mac OS).
Enter 0, 1, or 2 in the Tracing Gap text box. The value is calculated in number of pixels. Click OK.
To set the auto trace tolerance distance:Choose Edit > Preferences > Type & Auto Tracing (Windows) or Illustrator > Preferences > Type & Auto Tracing (Mac OS).
Enter a value between 0 and 10 in the Auto Trace Tolerance text box. The value is calculated in number of points. Click OK.