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GPS Sat Pointer is a sample Android application demonstrating how to use OpenGL-ES 2.0 to display a dynamically-updated set of 3D arrows showing the position of GPS satellites and the current compass orientation. The source code includes the following utility classes: * GeomBuilder: basic management of 3D object geometry and rendering * GLUseful: useful OpenGL-related stuff, including error-checking and management of shader programs * GLView: takes an image rendered via a Canvas to an offscreen Bitmap and displays it as a texture on a planar rectangle in OpenGL * Lathe: uses GeomBuilder to construct objects with rotational symmetry * Mat4f: functional operations on matrices representing 3D homogeneous coordinates * PaintBuilder: convenient construction of Paint objects by chaining setup calls * Vec3f: functional operations on vectors representing 3D coordinates Note that the compass direction is often inaccurate to begin with. However, turning the phone this way and that will often nudge it back into a sensible reading. Contents: art/ -- artwork for icon src/ -- Java sources for the Android app res/ -- resources for the Android app jni/ -- C sources for the Android app AndroidManifest.xml, build.xml, *.properties -- for driving Google's Android build tools (note that you will have to provide a couple more of these--see INSTALL for details) README -- this file INSTALL -- build/installation instructions LICENSE -- licence (Apache 2.0, same as Google's sample code) Lawrence D'Oliveiro <email@example.com>