Particle SystemThe particle system in ogre can be described by scripts or code. The particle system defined by the particle script is actually a template, so the particle system defined by it can be easily reused in the program.Particle systems and scenariosThe particle system will be mounted to the scene node. Therefore, the translation, scaling, and rotation of the node will be associated with the particle system, affecting the direction of the particle reflection.The particle will be emitted
received from the outside. Add the start and stop mark to the output data stream and delete the start and stop mark from the received data stream. Handle the interrupt signal sent by the keyboard or mouse (the keyboard and mouse pass are also serial devices ). It can manage the synchronization between computers and external serial devices. Some of the more advanced uarts also provide the buffer for the input and output data. Now the newer UART is 16550, which can store 16 bytes of data in the b
on the official website as follows:Delay: When the particle system starts, how long does the transmitter wait to start launching?Duration: the time span of the transmitter, that is, the duration of the particle effect. Note that this time is different from the particle survival time.Count: As the name implies, the number of particles that can appear at the same time has a lower limit.Emission: the number o
During the data transmission of I2C bus, the master controller and the beam controller work in two opposite states and do not change during one communication;1. When the main controller is a transmitter (main control transmitter), the Controller is a receiver (controlled receiver );2. When the main controller is a receiver (the main controller is a dazzling receiver), the Controller is a
Source: Huaqing vision embedded School, source: http://www.embedu.org/Column/Column698.htm
Author: Instructor Cheng,Hua Qing vision embedded college lecturer.
I. Data Communication Methods
The basic data communication methods can be divided into parallel communication and serial communication.
(1) Parallel Communication: multiple data lines are used to send data simultaneously. It features high transmission speed and is suitable for short-distance communication.
(2) Serial Communication: one pi
wireless mode video stream to the receiving end, the output image, to Whdi as the representative. At present, only Whdi technology can be realized in the industry.
Transfer without delay
Because Whdi technology provides enough wireless bandwidth, without compressing the way to transmit, save the video in the compression and decompression process of time spent, so can ensure that the transmission of film and television frequency is completely without delay.
Resolution up to 1080P
Whdi techno
Localmessagesender object in another application. The transmitter always sends the first message, but the receiver may respond and implement bidirectional communication. You can also create both the transmitter and receiver objects in two applications so that one of them can send the first message.
When you create a sink, you must give it either a unique name in the global scope or a unique name within th
layer has different refractive index (R1), and its value is usually less than 1% of the fiber core. If the light
The angle of incidence less than the critical angle shoots into the core and cladding interface, and the light will be absorbed through the cladding into the coat.
The use of optical fiber as a transmission media must be equipped with photoelectric conversion equipment, namely, optical transmitter and optical receiver. The optical
Http://zhidao.baidu.com/link?url=nkdS5wMr2QzSxzSgUebp4r4HSlKuBn2Y3IqMu7bUi9NBABPtwvN7-Fd2rrfdn8TDSqnfVGNTvWvsHOQMzpoLq_
What is the effective omni-direction radiation power?
In fact, the directional transmitting antenna is often used, so that the transmitter power is concentrated in a particular direction and the energy is greatly enhanced in this particular direction.
assuming that the energy in a particular direction is greater than the non-directi
Overview:
Media independent interface (media-independent interface), or media-independent interface, is the Ethernet industry standard defined by the IEEE-802.3. It includes a data interface and a management interface between MAC and PHY.
Data interfaces include two independent channels used for the transmitter and receiver respectively. Each channel has its own data, clock, and control signal. The MII data interface requires a total of 16 signals.
Th
= 1 due to the pull-up resistance.
The txo end of this interface circuit is tested by adding a 1 kHz TTL square wave. When the 120 Ω end resistance is not added, both the 485-a and 485-b ports of the interface chip have a voltage variation process of about 50 μs, as shown in figure 2. The rising edge of the RO waveform at the receiving end has a significant delay of about 30 ~ 40 μs (compared with the DI of the data sending end), resulting in a large transmission error. When the 120 Ω resistan
Int SetReceiveMode (RTPTransmitter: ReceiveMode m)
----- Set the receiving mode to m. The value of m can be RTPTransmitter: AcceptAll, RTPTransmitter: AcceptSome, RTPTransmitter: IgnoreSome. Note! If the mode changes, all information about the received or ignored addresses will be lost.
Int AddToIgnoreList (const RTPAddress addr)
----- Add the address addr to the ignore address list.
Int DeleteFromIgnoreList (const RTPAddress addr)
----- Remove the address addr from the ignored address list.
V
By Sreekrishnan Venkateswaran
Linux Bluetooth
Bluetooth is a short-range wireless technology used to replace cables. It supports 723 kbps (asymmetric) and 432 kbps (symmetric) speeds to transmit data and voice. The transmission range of a Bluetooth device is about 10 meters (30 feet ).
BlueZ is the official Linux Bluetooth Stack. It consists of the Host Control Interface (HCI) layer, Bluetooth Protocol core, Logical Link Control and Adaptation Protocol (L2CAP) SCO audio layer, other Bluetooth
In communication, the standard serial port must have a lot of handshake signal and state information in order to keep the operation safe and reliable. This is because each computer in the communication has a different CPU speed (which causes "wrong frames") and the transmitter sends data faster than the receiver receives (this can cause "overshoot"). To solve this problem, we use a simple handshake signal, that is, the
at home, go to the background to run instead of being suspend, the solution is to add required background modes This key item in the program's-info.plist, and select the app plays audio or Streams Audio/video using Airplay this value entry (if used Xcode5.0, on Targets-capabilities-background modes set to ON, select audio and Airplay option).2. If you are playing in the background to load the network audio
Iphone/Ipad wireless projection to PC, Iphone Ipad projection pc
Original Blog, reprinted, please indicate the sourceBlog.csdn.net/hello_hwc
Some projection technologies will inevitably be used for Demo presentation of applications. At this time, it seems a little bad to give a speech with a data line.
At this time, wireless projection is better. This article uses Mac as an example to introduce how to use air server for projection.
Step 1Download from the official website
Download link
St
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Chapter 2 "XML and relational object ing" describes the use of XML parsing frameworks and how to use the reflection framework of O-C for ORM.
Chapter 2 "Saving Application Data": How to Implement the NSCoding protocol and archive custom objects.
Chapter 2 "skin and view restoration" describes how an application implements "skin", that is, "dynamic skin replacement", from the technical perspective ".
Chapter 2 "Enterprise Data Security" describes in detail how to ensure the security and int
a full-screen Regular app or Compact layout, so the system will save two copies in sequence. Users may disable your app in full screen mode, and then enable your app as an additional app by multitasking, in this case, it is best to ensure that the App Switcher is consistent with the user's view after the app is opened to get the best experience. This may not be a big problem, but it is also necessary to pursue the ultimate user experience. For apps that contain sensitive user data that require
: Prevent page scrollingtouchend--triggered when the finger leaves the screenThe touchcancel--system stops tracking when the touch is triggered. For example, in the process of touching a sudden page alert () A prompt box, which will trigger the event, this event is less usedTouchEventTouches: Information about all the fingers on the screenTargettouches: Finger information in the target areaChangedtouches: The last finger information that triggered the eventTouchend, touches and targettouches inf
X-webkit-airplay= "true" support for airplay devicesWebkit-playsinline= "true" playback video not fullscreen, ios7+, winphone8+ support, partial android4+ support (including Huawei, Xiaomi, Meizu)Controls = "False" does not work on the phone and needs to be reset in JSvar videopausetime = [3,5,7]; var video = document.getElementById ("video"falsefunction() { If(parseint (video.currenttime) = = videop
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