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| 2019-01-28 19:04:59 -0600 | asked a question | I cut a small area in the original map, and then find a rectangle in the small area, draw it. At this time, I show the original map and find that it also draws a rectangular area. How does it correspond to coordinates? How do I get these coordinates? I cut a small area in the original map, and then find a rectangle in the small area, draw it. At this time, I show the o |
| 2019-01-28 03:57:27 -0600 | asked a question | 我在原图中裁切了一个小区域，然后在小区域中找到一个矩形，画出来，此时，我显示原图，发现它也画出了矩形区域，它是如何进行坐标对应的，我该如何获取这些坐标 我在原图中裁切了一个小区域，然后在小区域中找到一个矩形，画出来，此时，我显示原图，发现它也画出了矩形区域，它是如何进行坐标对应的，我该如何获取这些坐标 QRcode_img = img[int(p1_temp[1]):int(p3_temp |