Colour Behaviour Study of Japan / True Black on Real Life Physical Paper & on Computer Displays or Screens

I am hereby documenting few of my thoughts about black colour behaviour on Physical Paper & on Computer Display or on Screen.

 
I was from BFA (Bachelor of Fine Arts) – Applied Art background so we had subjects like Illustration, Calligraphy, Typography, Print Media Design, Logo & Symbol Design, Branding & Identity Design.

 
We use to design our assignments using Japan Black ink which is vary dark in contrast & which creates high contrast reach feeling of black colour tone on white paper.

 
So when we print our designs done in Adobe Illustrator or CorelDraw we use to fill the design with (CMYK) Cyan: 100%, Magenta: 100%, Yellow: 100%, K(Black): 100% than using only K: 100%. This CMYK values use to create high contrast Japan Black ink fill on White Paper.

 

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How to identify user is on iPhone, iPad or iPod touch by accessing their device width property. In other words how to write conditional code for 3.5 inch iPhone, 4 Inch iPhone, 4.7 inch iPhone, 5.5 inch iPhone, 9.7 inch iPad, 12.9 inch iPad

You may be programming Universal App for iPhone, iPad, iPad Pro & iPod touch. And you may be wondering how to write conditional code variant of iOS device sizes.

 
So here is how to write code by identifying device width or device height of your display or frame.

 
Here is how to solve this situation by identifying device width,

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How to secure macOS – OSX & iOS Wi-Fi Network with recommended settings for Wi-Fi routers and access points

I will list down steps to secure your macOS & iOS Wi-Fi Network.

 

Step 01: First things first, Update you Macintosh, iPhone, iPad, iPod touch & even AirPort Express, Airport Extreme base stations for latest software using Mac App Store.

 

Step 02: Choose Unique & Safe SSID (Service Set Identifier) Wi-Fi network name

 
Wi-Fi network name is case sensitive. Choose a unique name for your network and that isn’t shared by other nearby networks. If your SSID isn’t unique, Wi-Fi devices will have trouble identifying your network. This could cause network device to fail to automatically connect to your network, or to connect to other networks sharing the same SSID.

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Here is how you can call method or function in FirstViewController.swift from another Class called SecondViewController.swift in your iOS or macOS project within Xcode

Here is situation in your Xcode project that you want to call method from another class swift file to your original class of swift file.

 
Let’s call your original swift class file ‘FirstViewController’ which has ‘UIViewController’ as super class.

 
Second swift that you want to call function from we will assume that it has ‘SecondViewController’ as class name & it has ‘UIViewController’ as super class.

 
You have written function called ‘printSomething()’ in your ‘SecondViewController’ that would be triggered when somebody taps on button present on ‘FirstViewController’ as IBAction called ‘printThis(sender: UIButton)’

 
So you will write printThis function as follows:

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Creating single PDF by combining multiple image, pdf, png, jpg, jpeg files & documents using Preview on Mac OS X

Preview Macintosh OS X Application Image Editing Batch Processing

Here is simple solution to create single PDF by combining multiple files from various files types.

 

Assumption: I Assume you have 10 png files that you want to combine in to single PDF file.

 
Note: It really doesn’t matter if those 10 files have different height & width dimensions.

 
Here is how to do this:

 
Step 01: Locate & Open Preview in Applications folder on your Macintosh

 
Step 02: Select Preview now go to File > Open

 
Step 03: Select & Open all desired files in Preview

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How to use Disk Utility to partition Hard Disk / Solid State Disk Drive on Mac

Macintosh OSX Disk Utility

 

As Wikipedia Says: Disk Utility is a system utility for performing disk and disk volume-related tasks on the OS X operating system by Apple Inc.

 
Day to day functions supported by Disk Utility are:

 

  • Creation, conversion, backup, compression and encryption of logical volume images from a wide range of formats read by Disk Utility to .dmg or, for CD/DVD images, .cdr
  • Mounting, unmounting and ejecting external disk volumes
  • Enabling or disabling journaling
  • Verifying a disk’s integrity, and repairing it if the disk is damaged
  • Erasing, formatting, partitioning and cloning disks
  • Secure deletion of free space or disk using a “zero out” data, a 7-pass DOD 5220-22 M standard, or a 35-pass Gutmann algorithm
  • Adding or changing partition table between Apple Partition Table, GUID Partition Table and master boot record (MBR)
  • Restoring volumes from Apple Software Restore (ASR) images
  • Checking the S.M.A.R.T. status of a hard disk
  • Disk Utility functions may also be accessed from the OS X command line with the diskutil and hdiutil commands.

 
Now will learn how to partition disk,

 

Important Note:

  • Partitioning a disk erases all the data previously stored on it
  • By using partition feature of disk utility it divides disk into sections called ‘partitions’ which appear on the desktop as separate disks.

 

Precaution: Before moving forward backup all your computer data using Time Machine on different hard drive other than that you are currently partitioning.

 

Here is how to Partition a disk

 
Step 01: Connect External Disk to your Mac using USB / FireWire cable for purpose partitioning it

 
Step 02: Locate ‘Disk Utility App in Applications > Utilities

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Here is how to calibrate & maximise your Mac, Apple Watch, iPhone, iPad or iPod touch battery life & performance

Introduction:

 
What is Battery life?

 
Battery life is the amount of time your device runs before it needs to be recharged.

 
What is Battery lifespan?

 
Battery lifespan is the amount of time your battery lasts until it needs to be replaced.

 

General Performance Tips & Solutions

 

  • Update your Apple device to the latest software updates & operating system:
  • Apple software updates often include advanced energy-saving technologies, so always make sure your device is running with the latest version of iOS, OS X, or watchOS.

     

  • Avoid extreme ambient temperatures: Your device is designed to perform well in a wide range of ambient temperatures, with 62° to 72° F (16° to 22° C) as the ideal comfort zone. Avoid exposing your device to ambient temperatures higher than 95° F (35° C), which can permanently damage battery capacity.
  •  
    Apple Device iPhone iPad iPod touch Temprature Comfort Zone

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