矩形排料问题,组合优化问题

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《二维矩形条带装箱问题的底部左齐择优匹配算法_蒋兴波》matlab的实现，不包括遗传算法部分。function area =

PackingAlgorithm(length,width,length1,width1,length2,width2,length3,width3,restrict1,restrict2) area = 0;

frameCount = 1;

count1 = 0;

count2 = 0;

runLLABF;

function runLLABF

rectBig.length = length;

rectBig.width = width;

rectSmall(1).length = length1;

rectSmall(1).width = width1;

rectSmall(1).color = 'r';

rectSmall(2).length = length2;

rectSmall(2).width = width2;

rectSmall(2).color = 'b';

rectSmall(3).length = length3;

rectSmall(3).width = width3;

rectSmall(3).color = 'g';

edges(1).x = 0;

edges(1).y = 0;

edges(1).length = rectBig.length;

edges(2).x = -100;

edges(2).y = 10000;

edges(2).length = 0;

edges(3).x = rectBig.length+100;

edges(3).y = 10000;

edges(3).length = 0;

while(1)

flag = -1;

if(flag < 0)

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[edges,flag] = FullFitFirst(sortedEdges,lowestEdge,id,rectSmall);

if(flag<0)

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[edges,flag] = WidthFitFirst(sortedEdges,lowestEdge,id,rectSmall); end

if(flag<0)

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[edges,flag] = HeightFitFirst(sortedEdges,lowestEdge,id,rectSmall); end

if(flag<0)

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[edges,flag] = PlaceabelFirst(sortedEdges,lowestEdge,id,rectSmall); end

if(flag<0)

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[edges,flag] = cannotPalce(sortedEdges,lowestEdge,id,rectSmall,flag) end

end

if count1 >= restrict1

rectSmall(1).length = 100000;

rectSmall(1).width = 100000;

end

if count2 >= restrict2

rectSmall(2).length = 100000;

rectSmall(2).width = 100000;

end

sortRect = sort([rectSmall(1).length,rectSmall(1).width,...

rectSmall(2).length,rectSmall(2).width,...

rectSmall(3).length,rectSmall(3).width]);

minRect = sortRect(1);

minRect2 = sortRect(2);

[sortedEdges,lowestEdge,id] = edgesSort(edges);

[~,h] = size(sortedEdges);

for i = 1:h

if(sortedEdges(i).y+minRect <= width )

break;

end

if i == h

break;

end

if i == h-1 && lowestEdge.x + minRect2 > length break

end

if frameCount > 300

break;

end

function initial

rectBig.length = 30;

rectBig.width = 20;

rectSmall(1).length = 4;

rectSmall(1).width = 3;

rectSmall(2).length = 3;

rectSmall(2).width = 3;

rectSmall(3).length = 4;

rectSmall(3).width = 1;

edges(1).x = 0;

edges(1).y = 0;

edges(1).length = rectBig.length;

% edges(1).x = 12;

% edges(1).y = 10;

% edges(1).length = 2;

% edges(2).x = 3;

% edges(2).y = 8;

% edges(2).length = 2;