Question

我想在Drupal中使用GEOPHP检查多边形中是否存在一个点。我创建了多边形并从http://www.birdtheme.org/useful/v3tool.html得到了坐标。

$userLocation = geoPHP::load("POINT(77.600555 12.965416)","wkt");
$storeServingArea=geoPHP::load("POLYGON((77.569656 12.986159, 77.596779 12.993518, 77.622185 12.973780, 77.623215 12.954710, 77.608109 12.945676, 77.577896 12.945341, 77.565880 12.957386, 77.565193 12.976122, 77.568970 12.985824))","wkt");
var_dump($storeServingArea->contains($userLocation));

此代码将结果显示为NULL。

然后我尝试交换纬度和经度的值，并测试如下：

$userLocation = geoPHP::load("POINT(12.965416 77.600555)","wkt");
$storeServingArea=geoPHP::load("POLYGON((12.986159 77.569656, 12.993518 77.596779, 12.973780 77.622185, 12.954710 77.623215, 12.945676 77.608109, 12.945341 77.577896, 12.957386 77.565880, 12.976122 77.565193, 12.985824 77.568970))","wkt");

var_dump($storeServingArea->contains($userLocation));

这也将结果显示为NULL。

我在这里可能犯的错误是什么？我该如何解决？

SOLUTION:

有用的链接：Check if Google Map Point is in polygon from PHP

我通过以下链接解决了我的问题： http://assemblysys.com/php-point-in-polygon-algorithm/

Answer 1

为了这个目的，我已经分叉了geoPHP并添加了Polygon-＆gt; pointInPolygon和MultiPolygon-＆gt; pointInPolygon方法。看看：https://github.com/sookoll/geoPHP

$point = \geoPHP::load('POINT (x y)','wkt');
$polygon = \geoPHP::load('POLYGON ((x y...))','wkt');
$point_is_in_polygon = $polygon->pointInPolygon($point);

使用geoPHP指向多边形

1 个答案: