...约束布局问题；凸多边形；临界多边形；启发式方法；粒子群算法；混合算法 [gap=774]keywords：packing problem with constraints; convex polygon; no-fit polygon; heuristic algorithm; particle swarm optimizati..
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综合约束问题求解和回溯控制策略，给出了在粒度分层模型基础上的布局算法。
A layout algorithm based on the multi granularity model was proposed by adopting strategies of both constraint problem solving and backtracking.
内部自动布局引擎不是设计来处理约束大规模的变化，你会看到巨大的性能问题。
The internal Auto Layout engine is not designed to handle large scale changes in constraints, and you will see massive performance issues.
研究了二维布局优化问题，建立了具有性能约束的二维布局半无限优化模型。
The two-dimensional layout optimization problem is studied. A semi-infinite optimization model with performance constraints is presented.
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