position

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm working on Matlab 64-bits R2011b, and I have to use a 32-bits version (I have R2010b installed) to command a hardware (32-bit dll). For that, I created a COM server with actxserver() and it works. However, whenever a function takes time in the 32-bit session, the 64-bit session becomes 'busy' and nothing works anymore until completion. I simplified my problem in the script below : if you have two Matlab versions installed, you can try my code and see my problem. In a few words : one button starts a timer that simply shows the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm wondering if there is a way to emulate the following line of code using Unity's RigidBody2D as opposed to using a normal RigidBody. rigidbody.constraints = RigidbodyConstraints.FreezePositionX; I wanting my players x position to freeze when it collides with something. Whilst I could use the above, it would require I rework all my 2D collisions to work with the 3D collision. A pain I'd rather avoid. 回答1: This is due to the Box2D engine use to do the simulation. It does not directly provide a constraint on the rigid body itself. It does

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm trying to write BaseAdapter to my GrivView but in public View getView ( int position , View convertView , ViewGroup parent ) { ... } the position while rendering next elements is: visible elements --------------- | 1 2 3 | | 4 5 6 | <--- screen | 7 8 9 | --------------- nonvisible elements | 1 2 3 | <-- below visible area | 4 5 6 | where real is: visible elements --------------- | 1 2 3 | | 4 5 6 | | 7 8 9 | --------------- nonvisible elements | 10 11 12 | | 13 14 15 | I'm aware it's correct behaviour (it counts only visible

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I have a table which stores high-scores, along with player ids. I want to be able to extract a record by a players id, and then get the rank, or position of their score in the table. Means, Basically I want to be able to say "you are in Nth" position, purely based on the players score against all other scores. For Example: if i am at 46th position then to me the position message will be like you are at 46th position out of total scores. Can anyone show me small example? 回答1: There are two ways of doing it: Method 1: SET @i = 0 ;

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am here on an iPad Application and i would like to know if its possible to move the Scope Bar from right to my UISearchBar to another position? I would like to have my Scope Bar under my Search Bar. Is that possible? Thanks in advance. 回答1: Ok this is my solution for that. Ill implemented my own segmented control to create a possibility for a search scope. let categories = ["Scope1", "Scope2", "Scope3"] segmentedControl.addTarget(self, action: "changeScope:", forControlEvents: .ValueChanged) segmentedControl.frame = CGRectMake(8, 5, 800,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Say, I have a raw numeric file descriptor and I need to get the current position in file based on it. import os, psutil # some code that works with file lp = lib.open('/path/to/file') p = psutil.Process(os.getpid()) fd = p.get_open_files()[0].fd # int while True: buf = lp.read() if buf is None: break device.write(buf) print tell(fd) # how to find where we are now in the file? In the following code lib is a compiled library, that doesn't give access to the file object. In the loop I use the embedded method read which returns the processed

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In IOS there isn't a problem while looking for gps coords. It works fine. On Android side its not stable as IOS. This problem both in real device and emulator. Sometimes it can find location, but sometimes not. Looking for 3days but there wasn't find a solution. When my app cannot find my location, I tried via Google Maps app, it works like charm. Here is my code for both IOS and Android; getCurrentPosition() { navigator.geolocation.getCurrentPosition( (position) => { this.setState({ initialPosition: position }); alert(JSON.stringify

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: how do I get the real Position (in Pixels) of a WPF-Window? this.PointFromScreen( new Point( 0, 0 ) ); does not gives real Position on Screen when I use DPI of 150% for Font. I guess this has something to do with scaling, but in my case I need the "real" position on Screen. 回答1: I think you want PointToScreen . PointFromScreen converts screen coordinates into the coordinate system of the Visual . var window = new Window(); Point screenCoordinates = window.PointToScreen(new Point(0,0)); 回答2: I have this piece of code, but honestly I didn't

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to implement deferred shading/lighting. In order to reduce the number/size of the buffers I use I wanted to use the depth texture to reconstruct world position later on. I do this by multiplying the pixel's coordinates with the inverse of the projection matrix and the inverse of the camera matrix. This sort of works, but the position is a bit off. Here's the absolute difference with a sampled world position texture: For reference, this is the code I use in the second pass fragment shader: vec2 screenPosition_texture = vec2((gl

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm trying to create a Parallax View based on a SwipeView element. Examples in QML documentation illustrate how to achieve it with ListView: Image { id: background source: "background.png" fillMode: Image.TileHorizontally x: -list.contentX / 2 width: Math.max(list.contentWidth, parent.width) } ListView { id: list anchors.fill: parent spacing: 20 snapMode: ListView.SnapToItem orientation: ListView.Horizontal highlightRangeMode: ListView.StrictlyEnforceRange boundsBehavior: Flickable.StopAtBounds maximumFlickVelocity: 1000 model: _some_cpp