more features, the lower the matching rate, so it is necessary to filter out some of the
redundant feature points. The smoothing coefficient always set for 50—70. If the
feature points are more and more complex, it will be improved.
The curve fairing: refers to the change curve of uniform, reduce the inflection point
and the small line, so that the processing equipment running more smoothly.
The connection length: when the contour line with minor damage, here filled with a
suitable size, so that damage can be connected.
The minimum wire length: the extracted edge curve between two points of minimum
distance, its main role is allowed to walk in the process of equipment more smoothly.
minimum size: in the edge searching process, the graph with the maximum diagonal
size less than minimum size setting value, software will not be found.
The maximum size: in the edge searching process, the graph with the maximum
diagonal dimension is greater than the value of maximum size is set, software will
not be found.
The contraction expansion: the overall size of the original graphics to enlarge or
shrink. (in the example, please fill in the negative).
A closed contour: only the completely closed contour line extraction.
Is the Outline: only the outermost contour graph. Figure. (the red line, in the picture
is the outline).
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