This invention provides a method, device, medium, and product for displaying
layout data. The method for displaying
layout data includes: acquiring
layout data to be displayed; pre-creating multiple
layers within the layout data; each layer storing polygons of a corresponding size within the layout data; generating index keys for the polygons; establishing a
storage structure based on the numerical ranges of the index keys; determining the display width of the pixel blocks of the display window in the coordinate
system of the layout data; determining the corresponding layout data layer based on the display width, serving as a baseline layer; and querying layer by layer from high to low until the target data is found. The target data is used to determine the image information to be displayed for the pixel blocks. Specifically, for queried
layers higher than or equal to the baseline layer, the target data is a polygon; for queried
layers lower than the baseline layer, the target data is a
numerical range. This method can effectively improve the display speed of layout data.