QueryByGeometryService

Geometry 查询服务类构造函数。

例如：

QueryByGeometryService* ps = [[QueryByGeometryService alloc] init:@"http://support.supermap.com.cn:8090/iserver/services/map-world/rest/maps/World"];
FilterParameter* pF = [[FilterParameter alloc] init];
pF.name = [[NSString alloc] initWithString:@"Capitals@World.1"];
QueryByGeometryParameters* p = [[QueryByGeometryParameters alloc] init:testPath];
[p.queryParams addObject:pF];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(processCompleted:) name:@"processCompleted" object:nil];
[ps processAsync:p];