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The cursor builds on top of and depends on the raycaster component. If we want to customize the raycasting pieces of the cursor, we can do by changing the raycaster component properties. Say we want set a max distance, check for intersections less frequently, and set which objects are clickable: &l...

To add visual feedback to the cursor to show when the cursor is clicking or fusing, we can use the animation system. When the cursor intersects the entity, it will emit an event, and the animation system will pick up event with the begin attribute: <a-entity cursor="fuse: true; fuseTimeout:...

When the active property gets toggled, the component will notify the camera system to change the current camera used by the renderer: var secondCameraEl = document.querySelector('#second-camera'); secondCameraEl.setAttribute('camera', 'active', true);

To fix entities onto the camera such that they stay within view no matter where the user looks, you can attach those entities as a child of the camera. Use cases might be a heads-up display (HUD). <a-entity camera look-controls> <a-entity geometry="primitive: plane; height: 0.2; wi...

To position the camera, set the position on a wrapper . Don’t set the position directly on the camera primitive because controls will quickly override the set position: <a-entity position="0 0 5"> <a-camera></a-camera> </a-entity>

A convenient way to package your application is to write the scripts in your packages.json file and run them with the npm run command { "name": "AppName", "productName": "AppName", "version": "0.1.1", "main": ...

The recommended way is to write a component, and attach it to the scene element. The scene and its children will be initialized before this component. AFRAME.registerComponent('do-something', { init: function () { var sceneEl = this.el; } }); <a-scene do-something></a-scene...

Detailed instructions on getting google-cloud-dataflow set up or installed.

$logger = $container->get('logger'); This will fetch the service with the service ID "logger" from the container, an object that implements Psr\Log\LoggerInterface.

To use Processing in Eclipse, start by creating a new Java project. Then, select File > Import and then choose General > File System to locate the core.jar file. It can be found in PATH_TO_PROCESSING/core/library/ for Windows or /Applications/Processing 3.app/Contents/Java/core/library/ for Ma...

We can put assembly instructions inside a macro and use the macro like you would call a function. #define mov(x,y) \ { \ __asm__ ("l.cmov %0,%1,%2" : "=r" (x) : "r" (y), "r" (0x0000000F)); \ } /// some definition and assignment unsigned char sbox[...

_id is a 12 bytes hexadecimal number which assures the uniqueness of every document. You can provide _id while inserting the document. If you didn't provide then MongoDB provide a unique id for every document. These 12 bytes first 4 bytes for the current timestamp, next 3 bytes for machine id, next ...

On 32-bits systems, integers larger than PHP_INT_MAX are automatically converted to float. Outputting these as integer values (i.e. non-scientific notation) can be done with printf, using the float representation, as illustrated below: foreach ([1, 2, 3, 4, 5, 6, 9, 12] as $p) { $i = pow(1024,...

If you have: val r = Random(233) infix inline operator fun Int.rem(block: () -> Unit) { if (r.nextInt(100) < this) block() } You can write the following DSL-like code: 20 % { println("The possibility you see this message is 20%") }

Detailed instructions on getting nsurlsession set up or installed.

Install properties reader: npm install properties-reader --save Create a directory env to store your properties files: mkdir env Create environments.js: process.argv.forEach(function (val, index, array) { var arg = val.split("="); if (arg.length > 0) { ...

This example illustrates how to create a simple sine curve using Matplotlib # Plotting tutorials in Python # Launching a simple plot import numpy as np import matplotlib.pyplot as plt # angle varying between 0 and 2*pi x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

In this example, we take a sine curve plot and add more features to it; namely the title, axis labels, title, axis ticks, grid and legend. # Plotting tutorials in Python # Enhancing a plot import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

The following are some of the common extensions used in Fortran source files and the functionalities they can work on. Lowercase f in the extension These files do not have the features of preprocessor directives similar to C-programming language. They can be directly compiled to create object file...

In this example, a sine curve and a cosine curve are plotted in the same figure by superimposing the plots on top of each other. # Plotting tutorials in Python # Adding Multiple plots by superimposition # Good for plots sharing similar x, y limits # Using single plot command and legend import...