Transformations Unleashed Quartz 2d Graphics For Mac

Learn how to use the Core Graphics and Core Animation frameworks to create and animate graphics in your iOS applications. After reading this guide, you will know how to generate custom graphics, how to manipulate images, and how to create animations. Mar 21, 2017  About Quartz Transformation Functions. You can easily translate, scale, and rotate your drawing using the Quartz 2D built-in transformation functions. With just a few lines of code, you can apply these transformations in any order and in any combination. Figure 5-1 illustrates the effects of scaling and rotating an image. Each transformation you apply updates the CTM.

WILL (Wacom Ink Layer Language) is a cross-platform universal ink solution. The WILL SDK for ink is a Software Development Kit (SDK) that allows you to include premium digital inking features in your applications. Its modularized architecture allows each module to be configured, replaced, or omitted as required by the specific application, providing you with superior flexibility.

You can also use the WILL open file format (.will) to exchange ink content between applications.The WILL ink SDK includes:. A software library. Code samples illustrating particular functionality. The Tool Configurator - a fully functional demo application.

Comprehensive documentation, including step-by-step tutorials. Articles describing advanced programming techniques and best practicesDigital inkDigital ink (referred to in this documentation as ink) content comprises of strokes. These are usually, but not necessarily, created with a pointing device.

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Strokes have certain graphical characteristics and can be optionally associated with other data or metadata. You can digitally store and share ink content using various models – vector-based, pixel-based, or hybrid. Ink content exchangeThe WILL file format is similar to SVG, but is specifically designed to accommodate digital ink content. It is used for exchanging ink content between devices and applications, and is implemented as an open and extensible binary format.Note that the main modules of the WILL software library do not rely on a specific file format. You can use alternatives to the WILL file format (for example, InkML, SVG, or PNG) to exchange handwritten content, according to a specific application requirements.

Software libraryWILL supports a variety of input technologies and generates the best possible ink through the use of two dedicated modules, Path and Smoothing, that take into account the specific characteristics of each input type. The Rasterizer module then provides advanced real-time stroke rendering. The Manipulation module supports editing functions that leverage the WILL stroke mathematical model (referred to as the stroke model in this documentation).

The Serialization module encodes and decodes stroke data.In more detail:. The Path module converts raw input into the stroke model. The stroke model is a mathematical model optimized for stroke representation. It improves on traditional models for 2D graphics: the stroke is represented using Catmull-Rom interpolation over a sequence of control points, but in addition to x and y co-ordinates, each control point can have width and opacity values.

The Smoothing module enhances and enriches the stroke representation. The Rasterizer module provides APIs that are compatible with the stroke model. It uses three rendering back-ends that are built on OpenGL ES 2.0, DirectX 11.1, and WebGL respectively, providing full hardware acceleration on most platforms. The APIs facilitate raster-based techniques such as caching and masking. These techniques can be used to implement features such as preliminary curves, pixel transformations, and pixel-based manipulations on free-form selections. The Manipulation module provides a set of algorithms that operate over the stroke model.

These algorithms can be used as building blocks to implement functions such as selecting, erasing, cutting, copying, and pasting. The Serialization module provides a binary encoding algorithm designed to support the stroke model. This algorithm is based on Google protocol buffers, which makes the resulting binary code open and platform-independent.The WILL software library also provides a range of utility algorithms, including:.

An algorithm that calculates the boundaries of strokes described by the stroke model, and represents them as a collection of cubic Bezier curves. This algorithm can represent strokes using traditional 2D vector graphics models. The resulting representation can be serialized in traditional vector formats like PDF and SVG, or rendered using traditional 2D graphics libraries like Quartz 2D or Direct2D, or as HTML 5 canvas elements, or Android Canvas instances. An algorithm that produces a unique identifier based on the input device. You can use this functionality, which works exclusively with Wacom devices, to distinguish different users by their pens.Platform supportThe WILL ink SDK provides platform-specific packages for iOS, Android, Windows Store, and Web. These packages provide a deep integration with the hosting platform by using native packaging and programming techniques, and by providing platform-specific language bindings for all modules in the software library.Software applications often combine ink with other content, such as typed text and images. The platform-specific packages provide the flexibility and extensibility required to tightly integrate WILL with any application.Platform-specific tutorials illustrate the use of the software library modules.

Source code is provided in each case, and files use a naming convention that reflects the numerical ordering of topics in the Tutorials section of the documentation for each platform. IOSThe iOS software library is packaged as a framework, and Objective-C language binding allows iOS developers to use the preferred language of the platform. AndroidThe Android software library is packaged as a native library (shared object) wrapped in an Android library (JAR). Java language binding allows Android developers to use the preferred language of the platform and easily integrate ink content inside the View hierarchy. Windows StoreThe Windows Store software library is packaged as an unmanaged Windows Runtime Component. It can be used from any language supported by Windows Runtime (WinRT), whether inside a managed or an unmanaged environment.

WebThe Web software library is packaged as a JavaScript module with an asm.js program. It can be used by any standard HTML 5 application as a regular JavaScript library. Other platforms and runtime environmentsAdditional integration can be supported on request under a high-profile partnership contract. For example:. Other platforms, such as Windows (Win32 application architecture) and Mac OS X. Cross-platform technologies such as Qt, Marmalade, Xamarin, or custom C libraries.

.In 's operating system, Quartz is the and part of the Core Graphics framework. Quartz includes both a 2D renderer in Core Graphics and the composition engine that sends instructions to the graphics card. Because of this vertical nature, Quartz is often synonymous with Core Graphics.In a general sense, Quartz or Quartz technologies can refer to almost every part of the macOS graphics model from the rendering layer down to the compositor including Core Image and Core Video. Other Apple graphics technologies that use the 'Quartz' prefix include these:. Quartz Extreme. QuartzGL (originally Quartz 2D Extreme). QuartzCore.

Quartz Display Services. Quartz Event Services. Contents.Quartz 2D and Quartz Compositor is the primary two-dimensional (2D) text and graphics rendering library: It directly supports by displaying to create the user interface, including on-the-fly. Quartz can render text with; graphics are limited to more traditional anti-aliasing, which is the default mode of operation but can be turned off. In, Apple introduced Quartz 2D Extreme, enabling Quartz 2D to offload rendering to compatible.

However, GPU rendering was not enabled by default due to potential video redraw issues or.As of Quartz 2D Extreme has been renamed to QuartzGL. However, it still remains disabled by default, as there are some situations where it can degrade performance, or experience visual glitches; it is a per-application setting which can be turned on if the developer wishes. The is the engine used. In and later, the Quartz Compositor can use the graphics accelerator (GPU) to vastly improve composition performance. This technology is known as Quartz Extreme and is enabled automatically on systems with supported graphics cards. Use of PDF It is widely stated that Quartz 'uses internally' (notably by Apple in their 2000 presentation and Quartz's early developer documentation ), often by people making comparisons with the technology used in and (of which macOS is a descendant).

Quartz's internal imaging model correlates well with the PDF object graph, making it easy to output PDF to multiple devices. See also.References.