Topic: Raster Data
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Answers to Common Questions
What is raster data?
WHAT IS RASTER DATA Commonly used in GIS systems, it is basically pixelated data. For a more complete answer, I would refer you to ESRI's (ArcGIS vendor) website. http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=What_is_raster_... Read More »
Source: http://wiki.answers.com/Q/What_is_raster_data
What are the environmental settings specific to raster data and w...
I am assuming this is for geography??? please try to be more specific, I know quite a bit about GIS and raster data, but i can not makes heads or tails of this question Read More »
Source: http://wiki.answers.com/Q/What_are_the_environmental_settings_spe...
What is the difference between raster data and vector data
Vector data uses x & y coordinates to define map features. Vector d... ...MORE... Read More »
Source: http://www.chacha.com/question/what-is-the-difference-between-ras...
More Common Questions
Answers to Other Common Questions
Raster and vector are two very different but common data formats used to store geospatial data. Vector data use X and Y coordinates to define the locations of points, lines, and areas (polygons) that correspond to map features such as fire ...
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Source: http://www.extension.org/pages/41421/what-is-the-difference-betwe...
Epidavros is right. Think of vector data as the outline of the continents of a world map. Think of raster data as the topographic model of the earth's surface, there is not "beginning or end", but each point on the surface (raster) has a un...
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Source: http://answers.yahoo.com/question/index?qid=20060709011139AAmkiGX
A vector data model is based on points, lines, and areas defined by drawing boundaries around features and labeling or attributing them. The National Wetlands Inventory (NWI) is an example of a vector database. Environmental scientists manu...
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Source: http://www.querycat.com/question/bef5dd16f8607fbdb283437d64249cf1
This can be done in ArcCatalog or ArcToolbox. All ArcGIS users can encode individual rasters up to 50 MB. An additional MrSID Encoder license is required to compress and mosaic multiple images up to 500 MB in total size.
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Source: http://web.mit.edu/12.114/03_fall/www/FAQ_arcgis.htm
The following parameter can be used to specify the background color of monochrome raster in Raster Manager: BACKGROUND=0 or 1 (white or black): the raster foreground is inverted if it is identical to the background. BACKGROUND=2 (color): no...
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Source: http://www.querycat.com/question/e77fce3888c37d3a06528e81ff6a4834
Vector data deals with discrete phenomena, each of which is conceived of as a feature. The spatial characteristics of a discrete real world phenomenon are represented by a set of one or more geometric primitives (points, curves, surfaces, o...
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Source: http://ahmetsayar.blogspot.com/2007/03/faq-about-ogc-compatible-g...
Images are represented digitally as two-dimensional grids of colored dots or pixels. Each pixel is represented by some combination of color values. The representational pixel format accepted by the SDK code is RGB, meaning one byte (a value...
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Source: http://spp.austin.hp.com/SPP/SPPMigrated/FAQpage.aspx?FAQID=222&C...
