public Recordset HitTest(DatasetVector datasetVector, float x, float y) {
final float tolerance = dip2px(10.0f);
// 地理范围和手机屏幕的坐标是相反的
Point lb = new Point((int) (x - tolerance), (int) (y + tolerance));
Point rt = new Point((int) (x + tolerance), (int) (y - tolerance));
Point2D leftBottom = mMapControl.getMap().pixelToMap(lb);
Point2D rightTop = mMapControl.getMap().pixelToMap(rt);
// 投影转换
leftBottom =
mapShow.convertMapToDatasetPoint(leftBottom, datasetVector.getPrjCoordSys().getType());
rightTop = mapShow.convertMapToDatasetPoint(rightTop, datasetVector.getPrjCoordSys().getType());
// 构造屏幕当前点10像素范围的查询Bounds
Rectangle2D queryBounds = new Rectangle2D(leftBottom, rightTop);
QueryParameter param = new QueryParameter();
param.setAttributeFilter("");
param.setSpatialQueryObject(queryBounds);
param.setSpatialQueryMode(SpatialQueryMode.INTERSECT);
param.setCursorType(CursorType.DYNAMIC);
// 空间和属性联合查询
Recordset recordset = datasetVector.query(param);
return recordset;
}
