Created
December 22, 2014 04:43
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function getEmptyIndexes(arr) { | |
var px; | |
var py; | |
var i; | |
var rows : Array = []; | |
var columns : Array = []; | |
for (i=0;i<arr.length;i++) { | |
columns[i]=0; | |
} | |
for (i=0;i<arr[0].length;i++) { | |
rows[i]=0; | |
} | |
for (px=0;px<arr.length;px++) { | |
for (py=0;py<arr.length;py++) { | |
if (arr[px][py]==1) { | |
//помечаем столбец, что он уже не пустой | |
columns[px]=1; | |
//помечаем строку, что она уже не пустая | |
rows[py]=1; | |
} | |
} | |
} | |
var emptyRowsIndexes = []; | |
for (i=0;i<rows.length;i++) { | |
if (rows[i]==0) { | |
emptyRowsIndexes.push(i); | |
} | |
} | |
var emptyColumnsIndexes = []; | |
for (i=0;i<columns.length;i++) { | |
if (columns[i]==0) { | |
emptyColumnsIndexes.push(i); | |
} | |
} | |
return [emptyRowsIndexes,emptyColumnsIndexes]; | |
} | |
function getCropIndexesByEmptyIndexes(emptyIndexex,size) { | |
var i; | |
var cropFromBegin = 0; | |
for (i=0;i<size;i++) { | |
if (emptyIndexex[i]==i) { | |
//start from left; | |
cropFromBegin++; | |
} else { | |
break; | |
} | |
} | |
var cropFromEnd = 0; | |
for (i=size-1;i>=0;i--) { | |
if (emptyIndexex.pop()==i) { | |
//start from left; | |
cropFromEnd++; | |
} else { | |
break; | |
} | |
} | |
return [cropFromBegin,cropFromEnd]; | |
} | |
function splitToFilledRectangles(arr) { | |
var i = 0; | |
var emptyIndexes = getEmptyIndexes(arr); | |
var emptyRows = emptyIndexes[0]; | |
//trace("emptyRows",emptyRows); | |
var cropRows = getCropIndexesByEmptyIndexes(emptyRows,arr[0].length); | |
//trace("cropRows",cropRows); | |
//если индексы пустых строк идут подряд, убрать лишние | |
var emptyColumns = emptyIndexes[1]; | |
var cropColumns = getCropIndexesByEmptyIndexes(emptyColumns,arr.length); | |
//trace("cropColumns",cropColumns); | |
var rect = [cropColumns[0],cropRows[0], arr.length-cropColumns[0]-cropColumns[1],arr[0].length-cropRows[0]-cropRows[1]]; | |
return [rect]; | |
} | |
var temp = [[0,0,0],[0,1,0],[0,0,0],[0,1,0],[0,1,0],[0,0,0]]; | |
trace(splitToFilledRectangles(temp)); |
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