一个免费的GIS开发包GeoPAD
特性:
GeoPAD Version 1.1
GIS for Mobile Systems
GeoPad supports the following data formats(支持以下位图格式):
• ESRI shape files
• Windows® bit map
• JPEG
There is no need to convert data to unique portable formats.
GeoPad supports a multi layer environment with vector map and raster image display that includes aerial photographs and satellite imagery.
Images are stored as raster data, where each cell in the image has a row and column number. Shapefiles are stored in real-world coordinates. In order to display images with shapefiles, it is necessary to establish an image-to-world transformation that converts the image coordinates to real-world coordinates. Jpeg Image formats store this information in a separate ASCII file. This file is generally referred to as the world file, since it contains the real-world transformation information used by the image. World files can be created with any editor. Ex. World file for India.jpg file is India.jgw.
Display and Query Your Map
GeoPad has a number of map navigation display and query tools, including
• Window zoom in
• Window zoom out (窗口缩放)
• Fixed zoom in
• Fixed zoom out (固定缩放)
• Zoom active layer (缩放活动层)
• Zoom selected (缩放选定区域)
• Pan
• Center Point (x, y)
• Measure distance (距离测量)
• Point selection (点选择)
• Identify features by tapping on entity (点击记录显示特征)
• Find entity by keyword using match case and match whole word
• Label, arrow label
• Display theme (layer) table (显示层次主题表格)
• Query on exiting theme (layer) table (查询层次主题表格)
User can make query on active theme like
=
<>
>
>=
<
<=
AND
OR
Ex- AREA < 12635667 AND POPULATION > 35477
POPULATION < 3506 AND DIST_NAME <> ‘XYZ’
DIST_NAME = ‘XYZ’
Query result is displayed on map and also on table
GeoPAD System requirement (系统需求)
Processor Intel StrongARM
Hitachi SH3
MIPS
X86
Operating System Microsoft Windows CE 2.11, 2.12, or 3.0 (Pocket PC or Pocket PC 2002)
Memory 32 MB RAM
64 MB RAM Recommended
For GeoPAD Approximately 2 MB
Desktop Synchronization Microsoft ActiveSync 3.6
Software
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