Archive for category Graphics


A simple but effective dynamic GraphView implementation for iPhone SDK for float values. It is easy to implement and works statically with an array of floats as well as dynamically by adding values to update the graph continually. You can change and acces the GraphView settings and appearances with very little code.

DynamicGraphView Repository

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Thin Objective-C wrapper for modern OpenGL development on Mac & iOS.

Official CeedGL repository


Renderer for ANSI/ASCII art and code for interpreting SAUCE records.

Official AnsiLove framework repository


A view that “falls down” or “floats up” depending on device orientation (i.e. “adheres to gravity”).

FVGravityView blog post


Subclass of NSImageView/UIImageView that allows you to rotate a 360° panorama made up of a sequence of images by clicking/swiping.

FVImageSequence blog post

Icon Extractor and PRHResourceEnumerator

Classes to extract icon resources from old Mac applications into more modern ‘icns’ container files.

Official icon extractor repository


A drop-in-ready framework that helps in almost every aspect of PDF-rendering on iOS, including Table of contents parsing, annotations, display, zoom, thumbnails, text extraction, pages of different sizes and search.

Official PSPDFKit web site


Category on NSMutableDictionary for populating it more easily with EXIF data (CGImageProperties) for use with ALAssetLibrary’s -(void) writeImageToSavedPhotosAlbum:metadata:completionBlock:.

Note: There are numerous warnings and pitfalls in header comments you should read before you use this.

Documentation (blog post)
Available in the GusUtils repository


Implementation of an image cache that stores downloaded images based on a URL key.  The cache is not persistent (OS makes no guarantees) and is not backed-up when the device is sync’d.

Official ZSImageCacheHandler repository


A simple NSView subclass that implements a paint canvas into which users can draw with various paint tools.

Official UKPaintView repository