speed

SharedPreference Changes not reflected in my wallpaper service

匿名 (未验证) 提交于 2019-12-03 08:54:24
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 am making a live wallpaper where i need to change the speed of a vehicle in setting scene and it needs to get reflected back to the wallpaper service when i press the return button. In my preference activity, i save the list preference changes in shared preferences like this :- @Override protected void onCreate ( Bundle savedInstanceState ) { super . onCreate ( savedInstanceState ); addPreferencesFromResource ( R . xml . prefs ); ListPreference listPreference = ( ListPreference ) findPreference ( "listPref" ); currValue =

How can I find out the download speed of the client from server?

匿名 (未验证) 提交于 2019-12-03 08:52:47
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: According to the client's download speed I want to show the video's either in low or high quality. Any Javascript or C# solution is acceptable. Thanks. 回答1: There isn't any way to be sure. You can only measure how fast you can send data to the client. Without any kind of input from the client to indicate how fast it is getting the information, there isn't much you can do. You could redirect the client to a page which uses javascript to download an element in the page which is of known size. Then, take the time at the beginning and

Full setup of Transform Feedback(openGL)

匿名 (未验证) 提交于 2019-12-03 08:46:08
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: GLSL 1.50, openGL 3.3. I've been lately trying to get my tranform feedback working but without success. I still receive error after glBeginTranformFeedback() and as I haven't found any full working code I have stacked up my knowledge with some code that I found and documentation, it should be working well by now but I am missing something. So if anybody got full code (initializing of buffers, setting up, updating, rendering, reading back) it would definitelly help and if you don't but know what's going on you could take look at my code. I

why getSpeed() always return 0 on android

匿名 (未验证) 提交于 2019-12-03 08:33:39
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 need to get the speed and heading from the gps. However the only number i have from location.getSpeed() is 0 or sometimes not available. my code: String provider = initLocManager(); if (provider == null) return false; LocationListener locListener = new LocationListener() { public void onLocationChanged(Location location) { updateWithNewLocation(location, interval, startId); Log.i(getString(R.string.logging_tag), "speed =" + location.getSpeed()); } public void onProviderDisabled(String provider){ updateWithNewLocation(null, interval,

cocos2d dynamically changing animation speed with CCSpeed

匿名 (未验证) 提交于 2019-12-03 07:50:05
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 a simple game, a character has a walking animation of around 15 frames. Based on the accelerometer is speed in either direction changes. I wanted the animation to speed up or slow down accordingly. I realize that once the animation is initialized, you can't change the delay speed, and instead you need to create a new animation. But since the speed changes almost constantly, if I kept reseting the animation, it would always be stuck on the same frame. Is there a way to find which frame an animation is currently in, stop it, then create a

基于 HTML5 + Canvas 实现的 PID 可视化系统

Deadly 提交于 2019-12-03 04:54:37
前言   随着工业物联网和互联网技术的普及和发展,人工填料的方式已经逐渐被机械设备取代。工业厂商减小误操作、提升设备安全以及追求高效率等制造特点对设备的要求愈加高标准、严要求。同时机械生产以后还需遵从整个项目流程的规范管理,如何实行管理与交接也是一大严峻的挑战。因此,整个生产流程中还应该制定一套关于管理流程的可视化界面。    在工业过程控制中,按被控对象的实时数据采集的信息与给定值比较产生的误差的比例、积分和微分进行控制的控制系统,简称 PID 控制系统。PID 控制生产环境具有适应性强,鲁棒性强,使用方便等特点。进料系统则涉及到超高压技术,在流水线系统中广泛应用,能够实现设备半自动化或自动化送料作业,解决传统进料方式计量不准、工作环境污染以及工人劳动强度高等问题,从而实现高效的流水线加工。结合 PID 和自动化部署,可以为电力、机械、冶金、化工、食品、纺织等工业或者民用行业供需。本篇文章通过搭建危险废物进料系统的 2D 场景以及数据界面展示,帮助我们了解如何使用 HT 实现一个可视化的 PID 控制进料系统。   项目地址预览: 基于 HTML5 的 PID-进料系统可视化界面 http://www.hightopo.com/demo/PID-feed-system/ 效果预览   整体协作场景   抓斗操作场景   进料场景 代码构建   搭建场景   该文主要实现的是 2D

PHP PDO vs normal mysqli speed performance benchmark [closed]

匿名 (未验证) 提交于 2019-12-03 03:08:02
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 a project about social networking website where speed optimization is very critical. is PDO is FASTER ? i am thinking to switch to PDO is it recommended for use PDO for such a site ? 回答1: I doubt using PDO or MySQLi will be bottleneck, though, if you ask for bechmarks, here they are (nothing serious, just couple of tests). In general, using one or another is a matter of taste, and bottlenecks usually are somewhere else (e.g., queries, indexes, PHP code etc). One thing you might consider is using some DB wrapper, i.e.

Unity-3D捕鱼达人小游戏开发 —— 生成鱼

白昼怎懂夜的黑 提交于 2019-12-03 03:05:59
在这16个位置生成鱼,也就是创建16个空项目来装出生点,设置锚点和坐标,尺寸合适 并且将所有出生点的红轴旋转指向地图 创建一个空项目然后挂脚本 MakeFish.cs public class MakeFish : MonoBehaviour { // 存储生成位置的数组 public Transform[] genPosition; // 存储鱼预制体的数组 public GameObject[] fishPrefabs; // 事先创建的fishHolder public Transform fishHolder; 鱼的移动和转弯都专门写一个脚本来运行,因为以后的金币或者其他的特效也会使用到 Ef_AutoMove.cs using System.Collections; using System.Collections.Generic; using UnityEngine; public class Ef_AutoMove : MonoBehaviour { // 移动的速度 public float speed = 1 f; // 移动的方向 public Vector3 dir = Vector3.right; void Update () { // 自动移动 transform.Translate(dir * speed * Time.deltaTime); } }

Converting from m/s to km/h using F# Units of Measure

匿名 (未验证) 提交于 2019-12-03 02:56:01
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 in the process of learning F# - and is currently looking into Units of Measure. I have a simple calculation returning meters per second, and I want to introduce a function converting it to kilometres per hour. My code looks like this: [<Measure>] type kg [<Measure>] type s [<Measure>] type m [<Measure>] type km [<Measure>] type h let msToKmph(speed : float<m/s>) = (float speed) * 3.6<km/h> let gravityOnEarth = 9.81<m/s^2> let heightOfJump = 3.5<m> let speedOfImpact = sqrt (2.0 * gravityOnEarth * heightOfJump) let speedOfImpactKmh =

What is a clock cycle and clock speed?

匿名 (未验证) 提交于 2019-12-03 02:53:02
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 have been reading a book about the Computer's Processor. And i came across some of the terms like clock Ticks, clock Cycle and Clock Speed that i am finding very difficult to understand. I will be very thankful if someone can clarify this in a simple language. Thanks in advance ! 回答1: Clock Cycle is the speed of a computer processor, or CPU, is determined by the clock cycle, which is the amount of time between two pulses of an oscillator. Generally speaking, the higher number of pulses per second, the faster the computer processor will be