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pack1.js
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pack1.js
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/* Original File
https://raw.githubusercontent.com/wknechtel/3d-bin-pack/master/src/binpack.c
*/
var initialize = function(){},
inputboxlist = function(){},
execiterations = function(){},
listcanditlayers = function(){},
complayerlist = function(i, j){},
packlayer = function(){},
findlayer = function(thickness){},
findbox = function(hmx, hy, hmy, hz, hmz){},
analyzebox = function(hmx, hy, hmy, hz, hmz, dim1, dim2, dim3){},
findsmallestz = function(){},
checkfound = function(){},
volumecheck = function(){},
graphunpackedout = function(){},
outputboxlist = function(){},
report = function(){},
//********************************************************
// VARIABLE, CONSTANT AND STRUCTURE DECLARATIONS
//********************************************************
strpx = '',
strpy = '',
strpz = '',
strcox = '',
strcoy = '',
strcoz = '',
strpackx = '',
strpacky = '',
strpackz = '',
filename = '',
strtemp = '',
packing = '',
layerdone = '',
evened = '',
variant = '',
bestvariant = '',
packingbest = '',
hundredpercent = '',
graphout = "visudat",
unpacked = '',
quit = '',
boxx, boxy, boxz, boxi,
bboxx, bboxy, bboxz, bboxi,
cboxx, cboxy, cboxz, cboxi,
bfx, bfy, bfz,
bbfx, bbfy, bbfz,
xx, yy, zz,
px, py, pz,
tbn,
x,
n,
layerlistlen,
layerinlayer,
prelayer,
lilz,
itenum,
hour,
min,
sec,
layersindex,
remainpx, remainpy, remainpz,
packedy,
prepackedy,
layerthickness,
itelayer,
preremainpy,
bestite,
packednumbox,
bestpackednum,
packedvolume,
bestvolume,
totalvolume,
totalboxvol,
temp,
percentageused,
percentagepackedbox,
elapsedtime;
function boxinfo(){
this.packst = null;
this.dim1 = null;
this.dim2 = null;
this.dim3 = null;
this.n = null;
this.cox = null;
this.coy = null;
this.coz = null;
this.packx = null;
this.packy = null;
this.packz = null;
this.vol = null;
};
var boxlist = new Array();
boxlist[0] = new boxinfo();
function layerlist(){
this.layereval = "";
this.layerdim = "";
};
var layers = new Array();
function scrappad(){
this.pre = "";
this.pos = "";
this.cumx = "";
this.cumz = "";
};
var scrapfirst, scrapmemb, smallestz, trash;
var start, finish;
var ifp, gfp;
/*
Compability functions for converting from C to Javascript by Can Bayraktar
*/
// Console replacement (also console.log can be used)
var sc = document.getElementById('screen');
var printf = function(){
for(i = 0; i < arguments.length; i+=1){
sc.innerHTML += arguments[i] + ' ';
}
sc.innerHTML += '\n';
}
// Ascii to integer
var atoi = function(a){ return (+a); };
// Quick Sort
var swap = function(items, firstIndex, secondIndex){
var temp = items[firstIndex];
items[firstIndex] = items[secondIndex];
items[secondIndex] = temp;
}
var partition = function(items, left, right) {
var pivot = items[Math.floor((right + left) / 2)].layereval,
i = left,
j = right;
while (i <= j) {
while (items[i].layereval < pivot) { i++; }
while (items[j].layereval > pivot) { j--; }
if (i <= j) {
swap(items, i, j);
i++;
j--;
}
}
return i;
}
var qsort = function(items, left, right) {
var index;
if (items.length > 1) {
left = typeof left != "number" ? 0 : left;
right = typeof right != "number" ? items.length - 1 : right;
index = partition(items, left, right);
if (left < index - 1) {
qsort(items, left, index - 1);
}
if (index < right) {
qsort(items, index, right);
}
}
return items;
}
//********************************************************
// MAIN PROGRAM
//********************************************************
function main(){
initialize(); console.log("initialized.");
execiterations(); console.log("execiterations done.");
report(); console.log("report printed.");
return 0;
}
//********************************************************
// PERFORMS INITIALIZATIONS
//********************************************************
var initialize = function(){
inputboxlist();
temp = 1.0;
totalvolume = temp * xx * yy * zz;
totalboxvol = 0.0;
for (x=1; x <= tbn; x++) {
totalboxvol = totalboxvol + boxlist[x].vol;
}
scrapfirst = new scrappad();
scrapfirst.pre = null;
scrapfirst.pos = null;
bestvolume = 0.0;
packingbest = 0;
hundredpercent = 0;
itenum = 0;
quit = 0;
}
//**********************************************************************
// READS THE PALLET AND BOX SET DATA ENTERED BY THE USER FROM
// THE INPUT FILE
//**********************************************************************
var inputboxlist = function(){
var n,
lbl = "",
dim1 = "",
dim2 = "",
dim3 = "",
boxn = "",
strxx = "",
stryy = "",
strzz = "";
tbn = 1;
strxx = document.getElementById("strxx").value;
stryy = document.getElementById("stryy").value;
strzz = document.getElementById("strzz").value;
xx = atoi(strxx);
yy = atoi(stryy);
zz = atoi(strzz);
var bi = document.getElementsByClassName('box-inputs');
for(i = 0; i < bi.length; i+=1){
boxlist[tbn] = new boxinfo();
boxlist[tbn].dim1 = atoi(bi[i].children.dim1.value);
boxlist[tbn].dim2 = atoi(bi[i].children.dim2.value);
boxlist[tbn].dim3 = atoi(bi[i].children.dim3.value);
boxlist[tbn].vol = boxlist[tbn].dim1 * boxlist[tbn].dim2 * boxlist[tbn].dim3;
n = atoi(bi[i].children.boxn.value);
boxlist[tbn].n = n;
for(j = 1; j < n; j+=1){
boxlist[tbn+j] = Object.create(boxlist[tbn]);
}
tbn += n;
}
boxlist[tbn] = new boxinfo();
--tbn;
return;
}
//**********************************************************************
// ITERATIONS ARE DONE AND PARAMETERS OF THE BEST SOLUTION ARE
// FOUND
//**********************************************************************
var execiterations = function(){
for (variant = 1; (variant <= 6) && !quit; variant++) {
switch(variant){
case 1:
px=xx; py=yy; pz=zz;
break;
case 2:
px=zz; py=yy; pz=xx;
break;
case 3:
px=zz; py=xx; pz=yy;
break;
case 4:
px=yy; py=xx; pz=zz;
break;
case 5:
px=xx; py=zz; pz=yy;
break;
case 6:
px=yy; py=zz; pz=xx;
break;
}
listcanditlayers();
layers[0] = new layerlist();
layers[0].layereval = -1;
qsort(layers);
for (layersindex = 1; (layersindex <= layerlistlen) && !quit; layersindex++) {
++itenum;
printf("VARIANT: "+variant+"; ITERATION (TOTAL): "+itenum+"; BEST SO FAR: "+percentageused+" %%;");
packedvolume = 0.0;
packedy = 0;
packing = 1;
layerthickness = layers[layersindex].layerdim;
itelayer = layersindex;
remainpy = py;
remainpz = pz;
packednumbox = 0;
for (x = 1; x <= tbn; x++)
{
boxlist[x].packst=0;
}
//BEGIN DO-WHILE
do {
layerinlayer = 0;
layerdone = 0;
if (packlayer()) { exit(1); }
packedy = packedy + layerthickness;
remainpy = py - packedy;
if (layerinlayer && !quit) {
prepackedy = packedy;
preremainpy = remainpy;
remainpy = layerthickness - prelayer;
packedy = packedy - layerthickness + prelayer;
remainpz = lilz;
layerthickness = layerinlayer;
layerdone = 0;
if (packlayer()) { exit( 1); }
packedy = prepackedy;
remainpy = preremainpy;
remainpz = pz;
}
findlayer(remainpy);
} while (packing && !quit);
// END DO-WHILE
if ((packedvolume > bestvolume) && !quit) {
bestvolume = packedvolume;
bestvariant = variant;
bestite = itelayer;
bestpackednum = packednumbox;
}
if (hundredpercent) break;
percentageused = bestvolume * 100 / totalvolume;
}
if (hundredpercent) break;
if ((xx == yy) && (yy == zz)) variant = 6;
}
}
//**********************************************************************
// LISTS ALL POSSIBLE LAYER HEIGHTS BY GIVING A WEIGHT VALUE TO
// EACH OF THEM.
//**********************************************************************
var listcanditlayers = function(){
var same,
exdim, dimdif, dimen2, dimen3, y, z, k,
layereval;
layerlistlen = 0;
for (x = 1; x <= tbn; x++){
for(y = 1; y <= 3; y++){
switch(y){
case 1:
exdim = boxlist[x].dim1;
dimen2 = boxlist[x].dim2;
dimen3 = boxlist[x].dim3;
break;
case 2:
exdim = boxlist[x].dim2;
dimen2 = boxlist[x].dim1;
dimen3 = boxlist[x].dim3;
break;
case 3:
exdim = boxlist[x].dim3;
dimen2 = boxlist[x].dim1;
dimen3 = boxlist[x].dim2;
break;
}
if ((exdim > py) || (((dimen2 > px) || (dimen3 > pz)) && ((dimen3 > px) || (dimen2 > pz)))) continue;
same = 0;
for (k = 1; k <= layerlistlen; k++){
if (exdim == layers[k].layerdim){
same = 1;
continue;
}
}
if (same) continue;
layereval = 0;
for (z = 1; z <= tbn; z++){
if(!(x == z)){
dimdif = Math.abs(exdim - boxlist[z].dim1);
if ( Math.abs(exdim - boxlist[z].dim2) < dimdif ){
dimdif = Math.abs(exdim - boxlist[z].dim2);
}
if ( Math.abs(exdim - boxlist[z].dim3) < dimdif ){
dimdif = Math.abs(exdim - boxlist[z].dim3);
}
layereval = layereval + dimdif;
}
}
layers[++layerlistlen] = new layerlist();
layers[layerlistlen].layereval = layereval;
layers[layerlistlen].layerdim = exdim;
}
}
return;
}
//**********************************************************************
// PACKS THE BOXES FOUND AND ARRANGES ALL VARIABLES AND
// RECORDS PROPERLY
//**********************************************************************
var packlayer = function(){
var lenx, lenz, lpz;
if (!layerthickness){
packing = 0;
return 0;
}
scrapfirst.cumx = px;
scrapfirst.cumz = 0;
for(;!quit;){
findsmallestz();
if (!(smallestz.pre) && !(smallestz.pos) ){
//*** SITUATION-1: NO BOXES ON THE RIGHT AND LEFT SIDES ***
lenx = smallestz.cumx;
lpz = remainpz - smallestz.cumz;
findbox(lenx, layerthickness, remainpy, lpz, lpz);
checkfound();
if (layerdone) break;
if (evened) continue;
boxlist[cboxi].cox = 0;
boxlist[cboxi].coy = packedy;
boxlist[cboxi].coz = smallestz.cumz;
if (cboxx == smallestz.cumx){
smallestz.cumz = smallestz.cumz + cboxz;
} else {
smallestz.pos = new scrappad();
smallestz.pos.pos = null;
smallestz.pos.pre = smallestz;
smallestz.pos.cumx = smallestz.cumx;
smallestz.pos.cumz = smallestz.cumz;
smallestz.cumx = cboxx;
smallestz.cumz = smallestz.cumz + cboxz;
}
volumecheck();
} else if (!(smallestz.pre) ) {
//*** SITUATION-2: NO BOXES ON THE LEFT SIDE ***
lenx = smallestz.cumx;
lenz = smallestz.pos.cumz - smallestz.cumz;
lpz = remainpz - smallestz.cumz;
findbox(lenx, layerthickness, remainpy, lenz, lpz);
checkfound();
if (layerdone) break;
if (evened) continue;
boxlist[cboxi].coy = packedy;
boxlist[cboxi].coz = smallestz.cumz;
if (cboxx == smallestz.cumx){
boxlist[cboxi].cox = 0;
if ( smallestz.cumz + cboxz == smallestz.pos.cumz ) {
smallestz.cumz = smallestz.pos.cumz;
smallestz.cumx = smallestz.pos.cumx;
trash = smallestz.pos;
smallestz.pos = smallestz.pos.pos;
if (smallestz.pos) {
smallestz.pos.pre = smallestz;
}
} else {
smallestz.cumz = smallestz.cumz + cboxz;
}
} else {
boxlist[cboxi].cox = smallestz.cumx - cboxx;
if ( smallestz.cumz + cboxz == smallestz.pos.cumz ) {
smallestz.cumx = smallestz.cumx - cboxx;
} else {
smallestz.pos.pre = new scrappad();
smallestz.pos.pre.pos = smallestz.pos;
smallestz.pos.pre.pre = smallestz;
smallestz.pos = smallestz.pos.pre;
smallestz.pos.cumx = smallestz.cumx;
smallestz.cumx = smallestz.cumx - cboxx;
smallestz.pos.cumz = smallestz.cumz + cboxz;
}
}
volumecheck();
} else if (!smallestz.pos) {
//*** SITUATION-3: NO BOXES ON THE RIGHT SIDE ***
lenx = smallestz.cumx - smallestz.pre.cumx;
lenz = smallestz.pre.cumz - smallestz.cumz;
lpz = remainpz - smallestz.cumz;
findbox(lenx, layerthickness, remainpy, lenz, lpz);
checkfound();
if (layerdone) break;
if (evened) continue;
boxlist[cboxi].coy = packedy;
boxlist[cboxi].coz = smallestz.cumz;
boxlist[cboxi].cox = smallestz.pre.cumx;
if (cboxx == smallestz.cumx - smallestz.pre.cumx) {
if ( smallestz.cumz + cboxz == smallestz.pre.cumz ) {
smallestz.pre.cumx = smallestz.cumx;
smallestz.pre.pos = null;
} else {
smallestz.cumz = smallestz.cumz + cboxz;
}
} else {
if ( smallestz.cumz + cboxz == smallestz.pre.cumz ) {
smallestz.pre.cumx = smallestz.pre.cumx + cboxx;
} else {
smallestz.pre.pos = new scrappad();
smallestz.pre.pos.pre = smallestz.pre;
smallestz.pre.pos.pos = smallestz;
smallestz.pre = smallestz.pre.pos;
smallestz.pre.cumx = smallestz.pre.pre.cumx + cboxx;
smallestz.pre.cumz = smallestz.cumz + cboxz;
}
}
volumecheck();
} else if ( smallestz.pre.cumz == smallestz.pos.cumz ) {
//*** SITUATION-4: THERE ARE BOXES ON BOTH OF THE SIDES ***
//*** SUBSITUATION-4A: SIDES ARE EQUAL TO EACH OTHER ***
lenx = smallestz.cumx - smallestz.pre.cumx;
lenz = smallestz.pre.cumz - smallestz.cumz;
lpz = remainpz - smallestz.cumz;
findbox(lenx, layerthickness, remainpy, lenz, lpz);
checkfound();
if (layerdone) break;
if (evened) continue;
boxlist[cboxi].coy = packedy;
boxlist[cboxi].coz = smallestz.cumz;
if ( cboxx == smallestz.cumx - smallestz.pre.cumx ) {
boxlist[cboxi].cox = smallestz.pre.cumx;
if ( smallestz.cumz + cboxz == smallestz.pos.cumz ) {
smallestz.pre.cumx = smallestz.pos.cumx;
if ( smallestz.pos.pos ) {
smallestz.pre.pos = smallestz.pos.pos;
smallestz.pos.pos.pre = smallestz.pre;
} else {
smallestz.pre.pos = null;
}
} else {
smallestz.cumz = smallestz.cumz + cboxz;
}
} else if ( smallestz.pre.cumx < px - smallestz.cumx ) {
if ( smallestz.cumz + cboxz == smallestz.pre.cumz) {
smallestz.cumx = smallestz.cumx - cboxx;
boxlist[cboxi].cox = smallestz.cumx - cboxx;
} else {
boxlist[cboxi].cox = smallestz.pre.cumx;
smallestz.pre.pos = new scrappad();
smallestz.pre.pos.pre = smallestz.pre;
smallestz.pre.pos.pos = smallestz;
smallestz.pre = smallestz.pre.pos;
smallestz.pre.cumx = smallestz.pre.pre.cumx + cboxx;
smallestz.pre.cumz = smallestz.cumz + cboxz;
}
} else {
if ( smallestz.cumz + cboxz == smallestz.pre.cumz ) {
smallestz.pre.cumx = smallestz.pre.cumx + cboxx;
boxlist[cboxi].cox = smallestz.pre.cumx;
} else {
boxlist[cboxi].cox = smallestz.cumx - cboxx;
smallestz.pos.pre = new scrappad();
smallestz.pos.pre.pos = smallestz.pos;
smallestz.pos.pre.pre = smallestz;
smallestz.pos = smallestz.pos.pre;
smallestz.pos.cumx = smallestz.cumx;
smallestz.pos.cumz = smallestz.cumz + cboxz;
smallestz.cumx = smallestz.cumx - cboxx;
}
}
volumecheck();
} else {
//*** SUBSITUATION-4B: SIDES ARE NOT EQUAL TO EACH OTHER ***
lenx = smallestz.cumx - smallestz.pre.cumx;
lenz = smallestz.pre.cumz - smallestz.cumz;
lpz = remainpz - smallestz.cumz;
findbox(lenx, layerthickness, remainpy, lenz, lpz);
checkfound();
if (layerdone) break;
if (evened) continue;
boxlist[cboxi].coy = packedy;
boxlist[cboxi].coz = smallestz.cumz;
boxlist[cboxi].cox = smallestz.pre.cumx;
if ( cboxx == (smallestz.cumx - smallestz.pre.cumx) ) {
if ( (smallestz.cumz + cboxz) == smallestz.pre.cumz) {
smallestz.pre.cumx = smallestz.cumx;
smallestz.pre.pos = smallestz.pos;
smallestz.pos.pre = smallestz.pre;
} else {
smallestz.cumz = smallestz.cumz + cboxz;
}
} else {
if ( (smallestz.cumz + cboxz) == smallestz.pre.cumz ) {
smallestz.pre.cumx = smallestz.pre.cumx + cboxx;
} else if ( smallestz.cumz + cboxz == smallestz.pos.cumz ) {
boxlist[cboxi].cox = smallestz.cumx - cboxx;
smallestz.cumx = smallestz.cumx - cboxx;
} else {
smallestz.pre.pos = new scrappad();
smallestz.pre.pos.pre = smallestz.pre;
smallestz.pre.pos.pos = smallestz;
smallestz.pre = smallestz.pre.pos;
smallestz.pre.cumx = smallestz.pre.pre.cumx + cboxx;
smallestz.pre.cumz = smallestz.cumz + cboxz;
}
}
volumecheck();
}
}
return 0;
}
//**********************************************************************
// FINDS THE MOST PROPER LAYER HIGHT BY LOOKING AT THE UNPACKED
// BOXES AND THE REMAINING EMPTY SPACE AVAILABLE
//**********************************************************************
var findlayer = function( thickness )
{
var exdim, dimdif, dimen2, dimen3, y, z;
var layereval, eval;
layerthickness = 0;
eval = 1000000;
for (x=1; x <= tbn; x++)
{
if (boxlist[x].packst) continue;
for( y = 1; y <= 3; y++)
{
switch(y)
{
case 1:
exdim = boxlist[x].dim1;
dimen2 = boxlist[x].dim2;
dimen3 = boxlist[x].dim3;
break;
case 2:
exdim = boxlist[x].dim2;
dimen2 = boxlist[x].dim1;
dimen3 = boxlist[x].dim3;
break;
case 3:
exdim = boxlist[x].dim3;
dimen2 = boxlist[x].dim1;
dimen3 = boxlist[x].dim2;
break;
}
layereval = 0;
if ( (exdim <= thickness) && (((dimen2 <= px) && (dimen3 <= pz)) || ((dimen3 <= px) && (dimen2 <= pz))) )
{
for (z = 1; z <= tbn; z++)
{
if ( !(x == z) && !(boxlist[z].packst))
{
dimdif = Math.abs(exdim - boxlist[z].dim1);
if ( Math.abs(exdim - boxlist[z].dim2) < dimdif )
{
dimdif = Math.abs(exdim - boxlist[z].dim2);
}
if ( Math.abs(exdim - boxlist[z].dim3) < dimdif )
{
dimdif = Math.abs(exdim - boxlist[z].dim3);
}
layereval = layereval + dimdif;
}
}
if (layereval < eval)
{
eval = layereval;
layerthickness = exdim;
}
}
}
}
if (layerthickness == 0 || layerthickness > remainpy) packing = 0;
return 0;
}
//**********************************************************************
// FINDS THE MOST PROPER BOXES BY LOOKING AT ALL SIX POSSIBLE
// ORIENTATIONS, EMPTY SPACE GIVEN, ADJACENT BOXES, AND PALLET LIMITS
//**********************************************************************
var findbox = function( hmx, hy, hmy, hz, hmz)
{
var y;
bfx = 32767; bfy = 32767; bfz = 32767;
bbfx = 32767; bbfy = 32767; bbfz = 32767;
boxi = 0; bboxi = 0;
for (y = 1; y <= tbn; y = y + boxlist[y].n)
{
for (x = y; x < x + boxlist[y].n - 1; x++)
{
if (!boxlist[x].packst) break;
}
if (boxlist[x].packst) continue;
if (x > tbn) return;
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim1, boxlist[x].dim2, boxlist[x].dim3);
if ( (boxlist[x].dim1 == boxlist[x].dim3) && (boxlist[x].dim3 == boxlist[x].dim2) ) continue;
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim1, boxlist[x].dim3, boxlist[x].dim2);
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim2, boxlist[x].dim1, boxlist[x].dim3);
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim2, boxlist[x].dim3, boxlist[x].dim1);
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim3, boxlist[x].dim1, boxlist[x].dim2);
analyzebox(hmx, hy, hmy, hz, hmz, boxlist[x].dim3, boxlist[x].dim2, boxlist[x].dim1);
}
}
//**********************************************************************
// ANALYZES EACH UNPACKED BOX TO FIND THE BEST FITTING ONE TO
// THE EMPTY SPACE GIVEN
//**********************************************************************
var analyzebox = function( hmx, hy, hmy, hz, hmz, dim1, dim2, dim3)
{
if (dim1 <= hmx && dim2 <= hmy && dim3 <= hmz)
{
if (dim2 <= hy)
{
if (hy - dim2 < bfy)
{
boxx = dim1;
boxy = dim2;
boxz = dim3;
bfx = hmx - dim1;
bfy = hy - dim2;
bfz = Math.abs(hz - dim3);
boxi = x;
}
else if (hy - dim2 == bfy && hmx - dim1 < bfx)
{
boxx = dim1;
boxy = dim2;
boxz = dim3;
bfx = hmx - dim1;
bfy = hy - dim2;
bfz = Math.abs(hz - dim3);
boxi = x;
}
else if (hy - dim2 == bfy && hmx - dim1 == bfx && Math.abs(hz - dim3) < bfz)
{
boxx = dim1;
boxy = dim2;
boxz = dim3;
bfx = hmx - dim1;
bfy = hy - dim2;
bfz = Math.abs(hz - dim3);
boxi = x;
}
}
else
{
if (dim2 - hy < bbfy)
{
bboxx = dim1;
bboxy = dim2;
bboxz = dim3;
bbfx = hmx - dim1;
bbfy = dim2-hy;
bbfz = Math.abs(hz - dim3);
bboxi = x;
}
else if (dim2 - hy == bbfy && hmx - dim1 < bbfx)
{
bboxx = dim1;
bboxy = dim2;
bboxz = dim3;
bbfx = hmx - dim1;
bbfy = dim2 - hy;
bbfz = Math.abs(hz - dim3);
bboxi = x;
}
else if (dim2 - hy == bbfy && hmx-dim1 == bbfx && Math.abs(hz - dim3) < bbfz)
{
bboxx = dim1;
bboxy = dim2;
bboxz = dim3;
bbfx = hmx - dim1;
bbfy = dim2 - hy;
bbfz = Math.abs(hz - dim3);
bboxi = x;
}
}
}
}
//********************************************************
// FINDS THE FIRST TO BE PACKED GAP IN THE LAYER EDGE
//********************************************************
var findsmallestz = function(){
scrapmemb = scrapfirst;
smallestz = scrapmemb;
while ( !scrapmemb.pos == null ){
if ( scrapmemb.pos.cumz < smallestz.cumz ){
smallestz = scrapmemb.pos;
}
scrapmemb = scrapmemb.pos;
}
return;
}
//************************************************************
// AFTER FINDING EACH BOX, THE CANDIDATE BOXES AND THE
// CONDITION OF THE LAYER ARE EXAMINED
//************************************************************
var checkfound = function()
{
evened = 0;
if (boxi)
{
cboxi = boxi;
cboxx = boxx;
cboxy = boxy;
cboxz = boxz;
}
else
{
if ( (bboxi > 0) && (layerinlayer || (!smallestz.pre && !smallestz.pos)) )
{
if (!layerinlayer)
{
prelayer = layerthickness;
lilz = smallestz.cumz;
}
cboxi = bboxi;
cboxx = bboxx;
cboxy = bboxy;
cboxz = bboxz;
layerinlayer = layerinlayer + bboxy - layerthickness;
layerthickness = bboxy;
}
else
{
if ( !smallestz.pre && !smallestz.pos )
{
layerdone = 1;
}
else
{
evened = 1;
if (!smallestz.pre)
{
trash = smallestz.pos;
smallestz.cumx = smallestz.pos.cumx;
smallestz.cumz = smallestz.pos.cumz;
smallestz.pos = smallestz.pos.pos;
if (smallestz.pos)
{
smallestz.pos.pre = smallestz;
}
}
else if (!smallestz.pos)
{
smallestz.pre.pos = null;
smallestz.pre.cumx = smallestz.cumx;
}
else
{
if ( smallestz.pre.cumz == smallestz.pos.cumz )
{
smallestz.pre.pos = smallestz.pos.pos;
if (smallestz.pos.pos)
{
smallestz.pos.pos.pre = smallestz.pre;
}
smallestz.pre.cumx = smallestz.pos.cumx;
}
else
{
smallestz.pre.pos = smallestz.pos;
smallestz.pos.pre = smallestz.pre;
if (smallestz.pre.cumz < smallestz.pos.cumz)
{
smallestz.pre.cumx = smallestz.cumx;
}
}
}
}
}
}
return;
}
//********************************************************************
// AFTER PACKING OF EACH BOX, 100% PACKING CONDITION IS CHECKED
//********************************************************************
var volumecheck = function()
{
boxlist[cboxi].packst = 1;
boxlist[cboxi].packx = cboxx;
boxlist[cboxi].packy = cboxy;
boxlist[cboxi].packz = cboxz;
packedvolume = packedvolume + boxlist[cboxi].vol;
packednumbox++;
if (packingbest)
{
graphunpackedout();
outputboxlist();
}
else if (packedvolume == totalvolume || packedvolume == totalboxvol)
{
packing = 0;
hundredpercent = 1;
}
return ;
}
//*********************************************************************
// DATA FOR THE VISUALIZATION PROGRAM IS WRITTEN TO THE
// "VISUDAT" FILE AND THE LIST OF UNPACKED BOXES IS
// MERGED TO THE END OF THE REPORT FILE
//*********************************************************************
var graphunpackedout = function()
{
var n = "";
if (!unpacked)
{
strox = boxlist[cboxi].cox;
strcoy = boxlist[cboxi].coy;
strcoz = boxlist[cboxi].coz;
strpackx = boxlist[cboxi].packx;
strpacky = boxlist[cboxi].packy;
strpackz = boxlist[cboxi].packz;
}
else
{
n = cboxi;
strpackx = boxlist[cboxi].dim1;
strpacky = boxlist[cboxi].dim2;
strpackz = boxlist[cboxi].dim3;
}
if (!unpacked)
{
printf(strcox, strcoy, strcoz, strpackx, strpacky, strpackz);
}
else
{
printf(n, strpackx, strpacky, strpackz);
}
}
//*********************************************************************
// TRANSFORMS THE FOUND COORDINATE SYSTEM TO THE ONE ENTERED
// BY THE USER AND WRITES THEM TO THE REPORT FILE
//*********************************************************************