//computation of the radius to draw ellipses
radius=average[200](range)/4
//formula to compute short term swing points
if (high>alto[1]) and not (high<high[1] and low>low[1]) then
alto=high
basso=low
markup=barindex
markhigh=high
endif
if (low<basso[1]) and not (high<high[1] and low>low[1]) then
alto=high
basso=low
markdown=barindex
marklow=low
endif
if alto<alto[1] and trend=1 then
trend=0
drawarrowdown(markup,markhigh)
mediummarkup=shortmarkup
shortmarkup=markup
longmarkhigh=mediummarkhigh
mediummarkhigh=shortmarkhigh
shortmarkhigh=markhigh
//intermediate high swing points
if longmarkhigh<mediummarkhigh and mediummarkhigh>shortmarkhigh then
DRAWELLIPSE(mediummarkup–1, mediummarkhigh–radius, mediummarkup+1, mediummarkhigh+radius)
endif
endif
if basso>basso[1] and trend=0 then
trend=1
drawarrowup(markdown,marklow)
mediummarkdown=shortmarkdown
shortmarkdown=markdown
longmarklow=mediummarklow
mediummarklow=shortmarklow
shortmarklow=marklow
//intermediate low swing points
if longmarklow>mediummarklow and mediummarklow<shortmarklow then
DRAWELLIPSE(mediummarkdown–1, mediummarklow–radius, mediummarkdown+1, mediummarklow+radius)
endif
endif
drawcandle(open,high,low,close)
return
.
