Method and system for generating recommended selected area after frame selection of map area

The invention relates to the technical field of map data processing, and particularly discloses a recommended selected area generation method and system after map area framing, and the method comprises the steps: quantifying the area information corresponding to each level of scale into N-dimensional vector data according to a satellite map and a preset multi-level scale; obtaining a first frame selection area selected by the user based on the display range of the satellite map; determining a second frame selection area; dividing the second frame selection area into m * m cells, and calculating feature data of the corresponding cell according to the vector data corresponding to the scale with the minimum number contained in each cell; according to the relation between the feature data of each cell and a preset range judgment threshold value, setting the cell as a selected area or an unselected area; and generating a recommended selected area according to the selected area and the unselected area. According to