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SOLUTION Dynamic Margin on Window Drag So I'm trying to get my polygon to move as the window is moved. I have; private void ResetPolygon(Point Point1, Point Point2, Point Point3) { SpeechPoly.Points.Clear(); ObservableCollection<Point> myPointCollection = new ObservableCollection<Point>(); myPointCollection.Add(Point3); myPointCollection.Add(Point2); myPointCollection.Add(Point1); foreach (Point p in myPointCollection) { SpeechPoly.Points.Add(p); } } private void Window_LocationChanged(object sender, EventArgs e) { if (this.IsLoaded) { Point Point1 = new Point(newPoint3); Point Point2 = new

I insert many polygons into MongoDB(2.4.8), and hope find the polygon a specified Point sits in. It seems a common question. But after reading all docs from google, I didn't get the result. So create this question. e.g. db.addr_poly.insert( { loc : { type : "Polygon" , coordinates : [ [ [ 0 , 0 ] , [ 3 , 6 ] , [ 6 , 1 ] , [ 0 , 0 ] ] ] } }) db.addr_poly.insert( { loc : { type : "Polygon" , coordinates : [ [ [ 0 , 0 ] , [ -3 , -6 ] , [ -6 , -1 ] , [ 0 , 0 ] ] ] } }) Now how to find the polygon which contains Point(1,1)? Anybody can help me? Thanks a lot! Use the $geoIntersects operator . It

I have a strange behavior of MySQL spatial search. I have created a polygon in a GEOM field (Portugal bounds), then I am trying to find a point inside -- it is found ok. The next try is to find a point that is outside a polygon but the query still returns 1 found row. Please help, what am I doing wrong? Why does it find a point outside a polygon? SQL Code for testing is below: CREATE TABLE IF NOT EXISTS `test` ( `id` int(11) NOT NULL AUTO_INCREMENT, `bounds` geometry NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ; INSERT INTO `test` (`id`, `bounds`) VALUES

之前做项目，遇到一个问题，记录一下。 开始一直以为是内存溢出，查了半天，还是没搞明白什么错误。 最后，发现时项目属性->c++->コード生成->ランタイムライブラリ 选择错误。 蒋“マルチスレッド デバッグ (/MTd)” -> マルチスレッド デバッグ DLL (/MDd) 就ok了。 另外，对 md /mdd /ml /mt/mtd 说明一下，转自： http://www.cnblogs.com/eddyshn/archive/2009/11/23/1608823.html VC编译选项 多线程(/MT) 多线程调试(/MTd) 多线程 DLL (/MD) 多线程调试 DLL (/MDd) C 运行时库 库文件 Single thread(static link) ML libc.lib Debug single thread(static link) MLd libcd.lib MultiThread(static link) MT libcmt.lib Debug multiThread(static link) MTd libcmtd.lib MultiThread(dynamic link) MD msvert.lib Debug multiThread(dynamic link) MDd msvertd.lib 3. 各种 C 运行时库的区别 （ 1

I have some point on a 2D grid (x, y) and I need to find all points that are n distance away from that point. The way I'm measuring distance is by using the distance formula between the two points. Anyone know how to do this? Edit: Just for reference, what I'm trying to do is to write some AI path finding that will maintain some distance away from a target in a system that uses grid based locations. Currently I'm using A* path finding, but I'm not sure if that matters or makes a difference since I'm kind of new to this stuff. Here's what I would do: First filter out all points that are further

Is there an official specification for the XYZ format for point clouds? I've been searching all over and I didn't find it. I've seen that there are some files which line contains: points coordinates, (X Y Z for each point ) others contain coordinates plus colors, (X Y Z R G B for each point ) there are even others that have an "Intensity" parameter. I need to consider all the possibilities. No, there is not an official specification about the .xyz format for point clouds. The .xyz format can be considered as part of a more general type of file formats: ASCII point cloud . You can consider