Question

我正试图在边界框中测试一个点。它一直以null而不是0或1返回，我正在做什么错了？

SET @g1 = GEOMFROMTEXT('POLYGON(
        (-34.139468536232 18.303737037571,-34.139468536232 18.653342962429
        ,-33.849613463768 18.303737037571,-33.849613463768 18.653342962429))');

SET @g2 = GEOMFROMTEXT('POINT(-33.994541 18.478540)');

SELECT MBRCONTAINS(@g1,@g2);

Answer 1

在你的多边形中，如果我在末尾再次重复第一个点（以包围多边形），它可以工作：

请参阅此SQLfiddle：http://sqlfiddle.com/#!2/d41d8/6663

SET @g1 = GEOMFROMTEXT('POLYGON(
        (-34.139468536232 18.303737037571,-34.139468536232 18.653342962429
        ,-33.849613463768 18.303737037571,-33.849613463768 18.653342962429, -34.139468536232 18.303737037571))');

SET @g2 = GEOMFROMTEXT('POINT(-33.994541 18.478540)');

SELECT MBRCONTAINS(@g1,@g2);

MYSQL空间点在边界框中

1 个答案: