best observation binoculars

Experiment 2.2 shows that the vertex's coordinate value is not any absolute unit on the screen (the screen unit is pixels).Glortho (Left,right,bottom,top,near,far) establishes an observation box (viewing box) with 6 parameters to determine the position of six faces.Recently engaged in OpenGL, originally thought oneself to glortho this function already understood, the result found that oneself did not understand at all.First, the prototype of the Glort

If you want to be a key observer, add the following code.[Theappdelegate addobserver:self forkeypath:@ "Fido" Options:nskeyvalueobservingoptionold Context:nil];The above method is defined in NSObject, which is actually similar to saying, "Send me a message whenever Fido changes", and the options and context decide what additional data will be sent with the message when the Fido changes. The triggering method procedure is as follows-(void) Observevalueforkeypath: (NSString *) KeyPath Ofobject: (I

The analysis of subway subsidence observation data using VBA programming processWhen you're tired of watching the day, you're back looking at hundreds of measurements and reporting. If it's a 35-page report, it's okay to say that if it's a 2000-point report, it will have about 70 pages of reports on a page of paper 30. As the force of the surveyors, but also more bitter force is no settlement data analysis software surveyors, but also more difficult t

Cutting-edge observation: more than three Linux community versions have been added in China three years later-general Linux technology-Linux technology and application information. The following is a detailed description. Currently, there are not many Linux community versions in China, such as Magic Linux, Everest, and Cobo Linux. As you can see, red-flag Linux or blue-dot Linux, which has been running in commercial companies for several years. At pre

1. Observed elements: allows you to view the daily weather conditions of all weather stations. The WEBGIS map displays multi-element display or single-element observation data (optional ), it can display and hide site information (station number and station name), and provides list data for query and statistics. It can also form a color spot map for rainfall, temperature, wind power, and air pressure.2. Radar Data: displays the latest radar echo and o

redirected to clin003.com, it's just possible to hit the token) Check the header information of wz.mygou.com (Detection Method ): HTTP/1.0 301 moved permanently =>Date => Mon, 18 Feb 2008 06:35:11 GMTServer => ApacheX-powered-by => PHP/4.4.7Set-Cookie => PHPSESSID = 46161ab908eda1b99d1_1_b1171d5b; Path =/Expires => Thu, 19 Nov 1981 08:52:00 GMTCache-control => NO-store, no-cache, must-revalidate, post-check = 0, pre-check = 0Pragma => NO-CacheX-pingback => http://clin003.com/xmlrpc.phpLocatio

After the environment is configured successfully, run the sample code. You must find that the triangle is deformed as the window is stretched. The problem is solved below. The Code is as follows: # Include OpenGL path (2) setting the observation matrix and avoiding Drawing Deformation

Hadoop is now a very hot big data running framework and platform, for this amazing big guy I am not clear, the previous time to ignore it to run HADOOP, look at its operation record storage part (Operation log), IMAGE records all the platform's file operation records, such as creating files, Delete files, rename and so on, here are some of my little observations.Formatting----InitializationThis is the initial appearance of Fsimage, because it simply formats the disk and does not have any operati

CPU load observation and performance monitoring in CentOS CPU load and Utilization CPU load and utilization are two different concepts, but they can all be viewed in the top command. CPU utilization shows the percentage of CPU occupied by the program in real time during running, while the CPU load shows the average number of tasks that are being used and waiting for CPU usage for a period of time. High CPU utilization does not mean high CPU load. Ther

) objects. You must add or remove the parent object as an observer when you add or remove child objects. In its ObserveValueForKeyPath:ofObject:change:context: method, you need to update the corresponding value to respond to the notification and to issue a notification. As shown below:-(void) Observevalueforkeypath: (NSString *) KeyPath Ofobject: (ID) object change: (nsdictionary *) Change context: (void *) Context {if (context = = Totalsalarycontext) {[Self updatetotalsalary];}ElseDeal with oth

degrees into the horizontal direction, so here the definition of z-axis direction of rotationtwo repeat add four wheelsThree other wheels only the origin positive and negative values are adjustedThree add four pillarsThe four corners on the upper and lower floors are pillars of 3cm high. Add the following to add a column to the left front, based on the URDF above.1. The column does not rotate, so the joint type is fixed2. Joint inside definition changed the origin point of the pillar to xyz= "0

, just go to the funding object's needed field: Computed value: {{funding.needed}} However, there is a small problem: now, the computeneeded () method is triggered only when the value in input changes, and we want to execute the Computedneeded method when the page loads. For this reason, Angularjs prepared $scope for us. $watch (The object being observed, the action performed), the Startingestimate field of the funding object can be listed as the observed object, each change of the Startinges

Market Observation: Let the Desktop Linux be used by the company-general Linux technology-Linux technology and application information. The following is a detailed description. 0: w (5 ( Today's IT managers are faced with tough choices. Microsoft has decided to stop selling Windows XP, and now a smooth PC is facing a promising upgrade path. The upgrade cost related to Vista, coupled with the increasing application license fee, has become an increasin

For more than half a month, I pay more attention to my blog in Baidu rankings. The reason is, of course, I am ready to optimize the Chinese website, and Baidu so far is the largest market share of the Chinese search engine. Previously because they are doing English websites, so did not pay attention to Baidu and other Chinese search engine. For more than half a month of observation, there are a few small tips to share the discussion with you. First, B

themselves into portals through traffic, a resource that everyone craves, and directing traffic to the Affiliate app for effective diversion, creating a post-portal that distinguishes it from the store's front entrance.Obviously, for the tool app, social + content is not enough to support the tool app really away from the shadow of death, through the market foresight and technology, the unique advantages of their own in the vertical domain to become the user can actually perceive the positive,

I'm using the Ubuntu system, and I've written a piece of code to fork a subprocess. Then I use the Ps-el command to view the PID number of the main process and the child process. Surprised to find that the main process is no longer present, the ppid of the subprocess is a PID of the Init process, and this init pid is not 1.After finding the cause, I learned that the main function of the master process was executed by fork, and the main process I wrote was finished, so the master session ended. I

1 /**2 * Event Generation class3 * Class Eventgenerator4 */5 Abstract classEventgenerator6 {7 Private $ObServers= [];8 9 //Increase the viewerTen Public functionAdd (ObServer$ObServer) One { A $this->observers[] =$ObServer; - } - the //Event Notification - Public functionNotify () - { - foreach($this->observers as $ObServer) { + $ObServer-update (); - } + } A at } - - /** - * Viewer Interface class - * Interface ObServ

The first two days of the giant design software Photoshop 25 anniversary, Adobe produced a test observation of the online theme game, the Sohentu and PS-processed images mixed together, so that users to distinguish between true and false, I heard that designers are pixel-eyed, defy the war >>> Let's test your ability to observe, and first open the real or Photoshop feature page. Topic Address: http://landing.adobe.com/en/na/products/crea

Article Description: Product Observation: We know the 3 points worth of attention as a product. "Know" has become the recent IT industry almost nobody knows the key words, know is a Chinese question and answer community, organizational form and Quora similar, currently in the inside, need an invitation to register. Although the current user is still only 3000, but caused a lot of attention. In fact, when it comes to only 100 users, there is

August 22 Baidu algorithm upgrade, will affect the cheating site included and the ranking of low-quality sites, this news has become the day of the SEO industry's front-page headline news. At that time all the webmaster are guessing this Baidu algorithm upgrade strength as much as June 28, and will have a large number of sites in Baidu algorithm upgrade collapsed. But according to the data I collected these days shows that the upgrade of the Baidu algorithm and the June big upgrade has the essen