Map drawing method and system, terminal and storage medium

The invention discloses a map drawing method and system, a terminal and a storage medium, and relates to the technical field of map drawing. The method comprises the steps of: responding to a click event on a new image layer, forming drawing points at a click position, automatically generating a straight line segment according to the generation sequence of the drawing points to form an initial line segment, and moving the drawing point or a to-be-moved point on the initial line segment to enable the drawing point or the to-be-moved point on the new image layer to correspond to a pre-drawing position on an in-situ image layer; moving one of the start point or the end point to merge the start point or the end point to form a closed area or drawing at least one initial line segment and an original initial line segment to form a closed area; and covering the pre-drawing corresponding area of the in-situ image layer with the closed area drawn by the new image layer. The invention further comprises a system for dra