River water quality rendering method and device, computer equipment and storage medium

The invention provides a riverway water quality rendering method and device, computer equipment and a storage medium. The method comprises the following steps: determining latitude and longitude coordinates of monitoring points in a to-be-rendered riverway; calculating an equation of a straight line segment corresponding to each river reach in the to-be-rendered river channel; calculating a vertical distance from the monitoring point to a straight line segment corresponding to each river reach in the to-be-rendered river channel; calculating projection points of the monitoring points mapped to the corresponding straight line segments of each river reach; coordinate information of segmentation points between adjacent projection points on the river reach is calculated; determining segmentation points of the river reach in the river channel to be rendered according to the coordinate information of the segmentation points; segmenting the to-be-rendered river channel according to the segmentation points, and dyein