scaling

Best way to scale data, decrease loading time, make my webhost happy

梦想的初衷 提交于 2019-12-04 04:03:37
问题 For a Facebook Application, I have to store a list of friends of a user in my MySQL database. This list is requested from my db, compared with other data, etc. Currently, I store this list of friends within my user table, the uids of the friends are put together in one 'text' field, with a '|' as separator. For example: ID - UID - NAME - FRIENDS => 1 - 123456789 - John Doe - 987654321|123456|765432 My PHP file requests this row and extracts the list of friends by exploding that field ('|').

Android local image displayed via webview is blurry

天大地大妈咪最大 提交于 2019-12-04 03:58:27
问题 I have a webview loading an image from the assets/ folder. The image is displayed zoomed 100% (or more) and does not have the same clarity as the real image has at 100% How can I set the webview to display the image zoomed out AND not downscale the quality? Also, I am using a webview because ImageView would require me to reinvent smooth scrolling, tap to zoom, pinch to zoom, etc Insight appreciated 回答1: I recall that problem. Webview automatically downsamples larger images probably out of

how to scale an image in an ImageView so that it “fits”

跟風遠走 提交于 2019-12-04 03:01:44
问题 I want to scale an image in an ImageView in the following way. The ImageView has some dimensions Width (W) and Height (H). The image I'm putting into the image view could be smaller or bigger than WxH. I want it to scale while preserving aspect ratio to fill WxH space. It seems like the closest thing to what I want is android:scaleType="centerInside", but what I'm seeing is that if the image is smaller than WxH, it will put a small-unscaled version of that image in the center of the ImageView

Bad Swing UI scaling on high resolution (MS Surface)

不想你离开。 提交于 2019-12-04 02:47:43
I'm currently working on a little Java application, that involves Swing GUIs. On my development PC everything looks fine but when I run it on my MS Surface, some icons seem to be too large for the components (or the components too small for the icons). Here's what I mean: Google research has lead me to conclude that this is due to Surface's high resolution and Win8's zooming to let some items appear a little larger. So I reset that zoom to 100% and it actually fixed the bad scaling. Unfortunately, this doesn't really fix my problem. Everything is far too small without the zoom, so I'd rather

Use UIPinchGestureRecognizer to scale view in direction of pinch [closed]

限于喜欢 提交于 2019-12-03 21:06:15
I needed a Pinch Recognizer that would scale in x, or y, or both directions depending on the direction of the pinch. I looked through many of the of the other questions here and they only had parts of the answer. Here's my complete solution that uses a custom UIPinchGestureRecognizer. I created a custom version of a UIPinchGestureRecognizer. It uses the slope of line between the two fingers to determine the direction of the scale. It does 3 types: Vertical; Horizontal; and Combined(diagonal). Please see my notes at the bottom. -(void) scaleTheView:(UIPinchGestureRecognizer *)pinchRecognizer {

Convert numbers within a range to numbers within another range [duplicate]

拜拜、爱过 提交于 2019-12-03 19:13:33
问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: Convert a number range to another range, maintaining ratio So I have a function that returns values within 0 and 255 and I need to convert these values to something between -255 and 255 So 200 would be roughly 145, 150 would be roughly 45 and so on.. I have looked at Convert a number range to another range, maintaining ratio but the formulas there won't work. Any other formula I could use? 回答1: Try this: int

Which Memcached client library should I use for .NET? [closed]

我是研究僧i 提交于 2019-12-03 16:44:33
I've noticed there are a few solutions to allow the use of memcached on C# / ASP.NET: memcacheddotnet enyim.com Memcached Client BeIT Which one should I use? It seems like the enyim port has more active development, but I wanted to see what you guys recommend. I use BeIT and i am happy with it. Take a look at Velocity . Its Microsofts new alternative, its not stable yet but looks promising. 来源: https://stackoverflow.com/questions/272989/which-memcached-client-library-should-i-use-for-net

Resize CGImageRef without anti-liasing

半腔热情 提交于 2019-12-03 16:41:59
I am trying to resize a 10x10 pixel CGImageRef, captured like this: CGImageRef imageRef = CGImageCreateWithImageInRect(screenShot, CGRectMake(mouseLoc.x-5, screen_height-mouseLoc.y-5, 10, 10)); CGContextRef mainViewContentContext = CGBitmapContextCreate (NULL, maskImage.size.width, maskImage.size.height, 8, maskImage.size.height*4, colorSpace, kCGImageAlphaPremultipliedFirst); CGContextDrawImage(mainViewContentContext, NSMakeRect(0,0, maskImage.size.width, maskImage.size.height), imageRef); Then I need to make a 250x250 pixel image like this this , but the upscaled image looks like there is

In SpriteKit on iOS, scaling a textured sprite produces an incorrect frame?

萝らか妹 提交于 2019-12-03 16:10:24
I'm learning SpriteKit game development for the fun of it & I've run across a seemingly simple problem that has me stumped. Basically, after I scale a textured SKSpriteNode, the frame is NOT what I expect. I have figured out a few hacks to force it to what I want, but I'm trying to understand what is going on. Any ideas appreciated! Here's my code WITHOUT SCALING: func addSpaceship() { let spaceship = SKSpriteNode.init(imageNamed: "rocketship.png") spaceship.name = "spaceship" // spaceship.setScale(0.50) let debugFrame = SKShapeNode.init(rect: spaceship.frame) debugFrame.strokeColor = SKColor

Horizontally scale socket.io with redis

二次信任 提交于 2019-12-03 15:11:28
I currently am creating a horizontally scalable socket.io server which looks like the following: LoadBalancer (nginx) Proxy1 Proxy2 Proxy3 Proxy{N} BackEnd1 BackEnd2 BackEnd3 BackEnd4 BackEnd{N} My question is, with socket-io redis module, can I send a message to a specific socket connected to one of the proxy servers from one of the backend servers if they are all connected to the same redis server? If so, how do I do that? As you wan to scale socket.io server, and you have used nginx as load balancer, do not forget to setup sticky load balancing , othersie single connection will be connected