Plane splicing refers to splicing one or more plane graphics with the same shape and size and paving them into one piece without any gaps and overlaps. Plane mosaic is also called "plane dense shop" and "plane graphic mosaic". A key point of plane stitching is that the sum of angles of each common vertex is 360 degrees. The simplest mosaic is to use only one conformal mosaic plane. The condition of plane splicing is non-overlapping and seamless.