The Keymap SDK is a set of C++ classes designed with the purpose of simplifying the development process of GIS applications for programmers. It supports a wide range of GIS features, include built-in GPS support, symbology and advanced road styles. Unlike other GIS products which are usually shipped as ActiveX components, Keymap SDK is a set of C++ classes that can be easily embedded into your programs. Keymap SDK don't use MFC or any commercial GUI library in order to achieve maximum portability and performance. Keymap SDK supports all Microsoft platforms, include Windows CE, Pocket PC 2003, Windows Mobile 5, and Windows Mobile 6. Same source code used for all platforms (99.9% code is shared, core engine code is identical) so you can do development in PC, migration to mobile platforms requires minimal effort.

Due to its unified programming interface, very small memory footprint, user-friendly graphical interface, high performance and easy portability, Keymap SDK is strongly believed to become a very useful tool for GIS software developers.

Custom drawing

One of most exciting features of Keymap SDK is an ability to custom-draw everything. Developer can set any layer USER layer, and define your functions to draw nodes, text, polylines, polygons etc. A Keymap layer can be NORMAL, USER, ROAD, BUILDING or POI. Developer can change layer type on-the-fly by calling one API method. Beside custom drawing of entire layer, developer can draw his own objects over the map by processing  WM_MAPVIEW_UPDATE message. Drawing can be done using DisplayDevice, or conventional Win32 device context HDC. This approach gives freedom to developer, so he can manipulate not only map data, but customize map view according to business needs.

New indexing algorithm

Geo-spatial indexing is critical part for all GIS systems. Overall system performance depends on many factors, however indexing plays one of most important roles. We have implemented new indexing algorithm, that's about 20% faster then known approaches. Keymap applications can handle with very large GIS databases in limited devices like Pocket PC and Windows Mobile devices.

Road and POI styles

Keymap SDK can render road data using user-defined color and styles according to current scale. This feature allow users to create good looking map. High quality of map output guarantied by advanced drawing algorithm with anti-alias enabled. Optimized core engine avoids performance degradation during map rendering. Styles are defined in very simple manner through graphics user interface:

If scale is <scale> and (Field#n = <data> or any object) draw road with outline color <coloer> and width <width> and fill color <color> and (label or pattern or annotation)

Beside road styles, POI styles also available. User can use any images to draw node objects. POI styles are defined in same manner as road:

  If scale is <scale> and (Field#n = <data> or any object) draw node using image <file name>

Built-in GPS support

Reading and parsing GPS sentence seems to be very simple task, however "do it right" not so easy. Keymap SDK has built-in field-proven GPS reader and parser. The parser can read raw data directly from GPS port, and can understand Microsoft GPS API. Simple, reliable and efficient GPS parser is ready for your application.

Edit, undo and redo

Keymap SDK support editing map objects. User can add, delete and change all kind of map objects (geo data, properties, metadata). Developer can define any number of undo/ redo steps. Virtually Keymap SDK supports unlimited undo/ redo. The only limitation is device memory.

Data protection (optional)

Fast and reliable AES encryption is available as an option. Encryption operates transparently at disk access level. Encryption API is extremely simple and easy to use.

Routing (optional)

• Extremely fast

  • with California map routing/ re-routing time is less then 1 second in PDA with 500MHz CPU

• Routing between two points/ road/ POI

System requirements

The Keymap SDK C++ Edition can be installed in any computer running Microsoft Windows

Software requirements:

• Microsoft Visual Studio 2005/2008 SP1 for both desktop, Pocket PC and Windows Mobile development

• Microsoft Visual Studio .NET or Microsoft Visual C++ 6.0 for desktop development

• eMbedded Visual C++ 4.0 for Pocket PC, Windows CE 4.2 and Windows CE 5.0

• WTL 8.0 for demo version (Keymap SDK is GUI-independent and can be used with any GUI library)

During installation process, the installer will modify Visual Studio environment settings, so you should have such privileges in the computer Keymap SDK is being installed.

Supported platforms

Keymap SDK-powered applications can run in desktop computers, embedded PC, Pocket PC, Windows CE and Windows Mobile devices.

Currently Keymap SDK supports almost all Microsoft operating systems.

Target platforms:

• Windows 9x

• Windows NT

• Windows 2000

• Windows XP

• Windows Server 2003

• Windows Vista

• Windows CE 4.1, 4.2, 5.0

• Pocket PC 2003

• Windows Mobile 5

• Windows Mobile 6

Supported development platforms:

• Microsoft Visual Studio 2005/2008

• Microsoft Visual C++ 6.0

• Microsoft Visual Studio .NET 2003

• eMbedded Visual C++ 4.0

Keymap SDK API and native SQL format is the same for all supported platforms.