Q: What is the corresponding relationship between the pixcell and utfgridResolution attributes in the UTFGrid layer?

A: 1. The pixcell is the accuracy of utfgrid tiles which are sent to the server. The smaller the value, the higher the accuracy, and the larger the corresponding tile size will be. 2. utfgridResolution is the accuracy used for client parsing tiles. It should be equal to the pixcell, or there is a problem of location and property. 3. Usually if the UTFGrid layer is a region layer, the corresponding amount of data will be larger. In order not to affect the normal browsing of the page, you can set the two properties to a larger size.