Creating visual layouts is an important step in graphic design. Automatic generation of such layouts is important as we seek scale-able and diverse visual designs. Prior works on automatic layout generation focus on unconditional generation, in which the models generate layouts while neglecting user needs for specific problems. To advance conditional layout generation, we introduce BLT, a bidirectional layout transformer. BLT differs from autoregressive decoding as it first generates a draft layout that satisfies the user inputs and then refines the layout iteratively.We verify the proposed model on multiple benchmarks with various fidelity metrics. Our results demonstrate two key advances to the state-of-the-art layout transformer models. First, our model empowers layout transformers to fulfill controllable layout generation. Second, our model slashes the linear inference time in autoregressive decoding into a constant complexity, thereby achieving 4x-10x speedups in generating a layout at inference time.* Work done during their research internship at Google. (a) Conditional (top) and unconditional (bottom) generation.

This paper briefly introduces the power line carrier communication and field bus technology on LonWorks. The research on Application on LonWorks in temperature measurement system introduces how to use PL3120 to design a two temperature measuring system based on power line carrier communication of LonWorks from the aspect of software and hardware. The following key code of software has carried on the detailed notes.