jfoclpf / outliers2d Goto Github PK

The postal code text box currently allows for any character to be inserted. Since the portuguese postal code uses only hyphen separated numbers, any other inputs can be ignored.
Additionally, since the hyphen always occurs after the 4th number, this can also be automatized.
In short:

• Ignore any inputs other than numerals 0-9
• Automatically add hyphen after the 4th numeral

Another approach: pie

1. Draw a convex hull polygon around the points
2. Find the centroid of the polygon
3. Split this polygon in N pie slices around the centroid, each portion having an angle of 2*Pi/N
4. Strip outliers in each pie slice, based on the distance of each point to the centroid minus the median of the points in each pie slice

Another approach: chaikin

1. Draw a concave hull polygon around the points
2. Smooth the polygon with Chaikin's algorithm
3. Strip out the points which are not included in the smoothed polygon.
4. Repeat points 1 till 4 N times.
   
   In this picture the smoothed polygon does not include the previous point