Http://blog.sina.com.cn/s/blog_c0f05f6c0101pii9.html
For this commonly used and can not remember the knowledge or to record, in order to avoid getting help every time, it is not good ...Method One:#if (! $test) #end If the object is empty#if ($test)
8.1.1 Doppler effect Doppler effect is the phenomenon that Austrian physicist J.doppler first discovered from the moving source of sound in 1842, Defined as "the frequency at which the energy reaches the receiver (device) when the receiver or receiver is in a relative motion state with the energy source". An example is when an emergency train (car) beeps at a very high speed toward you, The tone (frequency) of the sound is increased by the compression of the wave (shorter wavelength). When
Chapter II: Basic KnowledgeI, Velocity and jquery:The velocity function is independent of jquery, but can be used in combination. The advantage of doing this often is that you can use jquery's chained operations: Once you have selected an element with jquery, you can use this element to invoke. Velocity () to animate it. For example:Assigns a variable to a jquery
. If there are multiple similar animation processes that need to be generated by adjusting multiple parameters, there will be a lot of redundancy (such as jQuery Mobile's animation solution), while JS can naturally implement multiple different animation processes with a set of functions.
In terms of time scale, the @ keyframes animation granularity is coarse, while the JS animation granularity control can be very fine
CSS3 animations support very few and not flexible enough time functions.
Wi
about the velocity template file (. VM), and map the logical view name to the view template file name, and then construct a view instance of the velocityview type to return, and so on.
The main viewresolver implementation classes of this class are as follows.
Q internalresourceviewresolver. It is the most widely used viewresolver Implementation type. It corresponds to the ing of the internalresourceview [18] view type. To put it bluntly, it is used t
In-depth exploration of some methods to make JavaScript animation smoother
This article mainly introduces some methods to make JavaScript animation smooth, including comparison with CSS animation effects. For more information, see
Javascript-based animation has the same effect as CSS transition and even accelerates the transition. How can this happen? The performance of Adobe and Google's continuously released rich media mobile websites is comparable to that of local applications. How can this h
This article mainly introduces some methods to make JavaScript animation smooth, including comparison with CSS animation effects. If you need it, you can refer to the Javascript-based animation, which has the same effect as CSS transition, how can this be even faster? The performance of Adobe and Google's continuously released rich media mobile websites is comparable to that of local applications. How can this happen?
This article provides an overview of Javascript-based DOM animation libraries
an example to experience it through real-time interaction.IntroductionAs the first article in the series, this article describes the simplest kinematics simulation, with only two very simple formulas. Kinematics Simulation can be used to simulate the movement of many objects (such as Mario's jump and shells). This article will work with the particle system to make some visual effects (the particle system can also be used to play games, instead of visual effects ).Kinematics SimulationKinematics
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
the idea of Sun bin, with the first-class saddle to decorate the inferior horse, posing as a good horse, and the King horse race. The second game, or in accordance with the arrangement of Sun Bin, Tian bogey with their best horse and the king of the medium horse race, in a cheer, saw the horse unexpectedly rushed to the king of the horse in front, won the second game. The key third field, Tian bogey medium horse and King of the inferior horse race, T
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
race. The second game, or in accordance with the arrangement of Sun Bin, Tian bogey with their best horse and the king of the medium horse race, in a cheer, saw the horse unexpectedly rushed to the king of the horse in front, won the second game. The key third field, Tian bogey medium horse and King of the inferior horse race, Tian bogey horse again rushed to the King's horse in front, results 2:1, Tian Bogey won the king.It is so simple, now the Yua
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
Java. Now a mainstream use of Java is back-end development, this field in its previous era is the Java EE (now known as the World, also known as the Enterprise) Java Edition. The Java EE contains a lot of content, the core is EJB. At the time, I was just Red in the school. Distributed object technology, with CORBA and EJB as an example to implement. Read several EJB design patterns and best practice books, and then did not graduate into the company an internship found that we do not have EJB no
Half an hour to get off work, write about today's problems, treatment methods and some of their own understanding. Understanding is not necessarily right, but also hope that everyone correct.The effect I do today is that the hero move.I used to do it with transform. Translate (Vector3. forward * Time . Deltatime * Speed );But there are some bugs that are not mobile, of course you can add time delay function, a little bit of simulation animation effect, too troublesome (I want to do this).Late
This article mainly introduces some methods to make JavaScript animation smooth, including comparison with CSS animation effects. if you need it, you can refer to the Javascript-based animation, which has the same effect as CSS transition, how can this be even faster? The performance of Adobe and Google's continuously released rich media mobile websites is comparable to that of local applications. how can this happen?
This article provides an overview of Javascript-based DOM animation libraries
(in seconds)
Min/MAX emission: Minimum/large number of particles generated per second
World velocity: the initial velocity of a particle along the XYZ direction in the world coordinates
Local velocity: The local speed. It takes an object as a reference and is relative to the initial speed along the XYZ direction.
RND volocity: Random speed
Emitter
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