from file_util import *
from db_util import getDiffEwkt
from img_util import savePng
import re

# 1.获取图斑的根目录
dirs = getDirList('img', '2024')
for dir in dirs:
    # 2.获取tif路径
    allPathList = getAllFiles(dir+'/DDOM')

    for filePath in allPathList:

        print('tif路径：'+filePath)

        # 3.获取tif的边界矢量范围
        ewkt = getTifEwkt(filePath)
        # 4.tif边界-变化矢量（生成图片的黑色部分）
        match = re.search(r'/DDOM/(.*)DDOM\.tif', filePath)
        code = match.group(1) if match else ''
        tbName=dir.replace('img/','')
        ewkt = getDiffEwkt(ewkt, tbName)
        # 5.生成变化的图片
        savePng(code+"_CHANGE", ewkt, dir)