GIS
[email protected]
GIS (Geographic Information System)
(graphics and attributes data link)(topological data
structures)(automated mapping technology)(data base
management)(spatial analysis)
GIS(1/3)
Thematic GIS GIS
GIS(2/3)
Regional GIS
GIS(3/3)GIS
GIS Tool GIS
GIS
GIS(1/6)1. (Locations)
GIS(2/6)2. (Conditions)
SQL
GIS(3/6)3. (Trends)
GIS(4/6)4. (Patterns)
GIS(5/6)5. (Models)
GIS(6/6) GIS
, Data Acquisition , Preliminary Data Processing , Storage and
Retrieval , Search and Analysis , Display and Interaction
GIS
Arc/InfoMapInfoArc ViewMicroStationAutoCAD MapWinGIS
WebGIS ESRI ArcIMSMapObjects IMSAutoCAD
MapMapGuide
ESRI Arc/Info / ArcView ESRIArc/InfoArcViewGISGISArc/Info
coverageArcViewShapecoverageshapeGISE00Arc/InfoALTASDIMEDLGDXFETAKIGESMOSSTIGERArcViewE00AutoCADDWGDXFMicroStation
DGNMapinfo MIFShapeArcViewshape
AutoCad Map AutoCAD MapAutodeskAutoCAD
R14CADGISArcView shapefileArc/Info coveragesMapInfo
MIF/MIDMicroStation DGNAutoCAD DXFAutodeskMapGuide
SDF1/250001/5000DXF
MapInfo MapInfoMapInfo
Desktop GISMapInfoMapInfo MIFAutoCAD DXF4.5Universal
TranslatorArcLinkMicrostation DGNArcView shapefileArc/Info E00
Intergraph Microstation
MicrostationIntergraphGISCADDWGDXFIGESCGM1/1000DGN
1/500001/250001/50001/1000DXFDGNDGN
1/2500045GIS
GISESRI coverageshapefilemifGISdxfdgndxfdgnESRI
coverageshapefilemifGISlayer
FreeGIS ArcReader,ESRI ArcExplorer,ESRI MircoCam dlgv32 Software
for Viewing USGS Data GRASS GIS (Geographic Resources Analysis
Support System) Taiwan GPS and TWD67, TWD97, WGS84
coordinate transformations U.S. and World Geography-Maps That
Teach-Free Resources for
Parents and TeachersEducational Software from Owl &
Mouse
Directionsmag.Com Geocomm.Com ArcView GIS Downloads
(1/3)
(, Vector) (Raster) (DTM, Digital Terrain Model) (Attribute
Data)
(2/3)
(2D)(3D)
(3/3)
GIS(Vector)
GIS(Vector & Raster)
(Grey Level)
(R,G,B) (Gray level)
() ()
Raster convert to Vector Raster transform to 3D
(DTM, Digital Terrain Model)
GIS
DTM
(Attribute Data)
What?
Descriptions
(2D/3D) (time)
(thematic attributes)
time
time
(Qualitative)
(Quantitative)
(Precision) () 1/5000() vs 1/100,000()
(Arc) (Polygon)
(Primary Data)
GPS
()(Secondary Data)
Copy and Burn
+ GPS
GPS 1973NAVSTAR
NAVigation Satellite Time And Ranging 24
20,183km 6(60)
GPS GPS
(x,y,z)
d1
d2 d3 d4(x1,y1,z1)
(x2,y2,z2) (x3,y3,z3)
(x4,y4,z4)
22 2 211 1 1( ) ( ) ( )x x y y z y d + + =
22 2 22 2 2 2( ) ( ) ( )x x y y z y d + + =
22 2 23 3 3 3( ) ( ) ( )x x y y z y d + + =
(x,y,z) 22 2 2
4 4 4 4( ) ( ) ( ) 0x x y y z y d + + *d C t=
=*83*10 /C =
GPS (Differential GPS)
A()
C()
B()
( , , )A A Ax y z
( , , )B B Bx y z
( , , )C C Cx y z
()
(Digitizer) ()
(by time or by distance) (by hand-clicking)
(Scanner) (Raster to Vector) Have a Photoshop example!
..
FORMOSAT-2 SPOT LANDSAT
3
SPOT / 2.5m
SPOT / 2.5m
()
Ex. CAD GIS
Open GIS
v.s. /
(accuracy)
(, validity) (precision)
(, reliability) (uncertainty)
() (compatibility)
(, )
()
(consistency)
(completeness)
(accessibility) (//)
(timeliness)
GIS
/
/Raster-Vector
/////
GIS
, , ,
