week2 - Week 2 GIS CONCEPTS Part I GIS ON THE WEB Part II...

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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department GIS CONCEPTS Part I GIS ON THE WEB Part II Week 2
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department topics of the week – part I GIS functions and GIS data Spatial relationships
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department Answer Questions Analyze Store Display Capture Output GIS functions
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department Capture, create data New data Digitize from paper maps Digitize over digital maps Scan paper maps Create fresh using GPS devices Create from textfiles that store geographic location [ mostly points] Text file example: X Y 450632.55, 355789 450633.56, 355791
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department Use existing digital data - GIS format or other Download from public GIS web portals Buy from specialized GIS agencies Convert from other formats into GIS formats Substract, collapse, add, integrate from existing GIS data into new GIS data that respond to your needs Capture, create data
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department Store data Two fundamental models for storing geographic data Vector Model - Discrete representations of reality, traditional geometric shapes Raster model - Uses square cells to model reality with attributes - grids without attributes - areals
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department More on Vector and Raster
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URP 4273: Survey of Planning Information Systems, UF - College of Design, Construction and Planning - URP Department Answer Questions What is where, identify specific features Where is what, identify features based on known conditions County Name = Alachua Context and Content of Questions
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Analysis Proximity Which parcels are fully contained within the red line? Overlay
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This note was uploaded on 02/15/2012 for the course URP 4273 taught by Professor Papajorgji during the Spring '08 term at University of Florida.

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week2 - Week 2 GIS CONCEPTS Part I GIS ON THE WEB Part II...

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