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Tier 2 Training

Tier 2 Training. ArcGIS Basics. What is ArcGIS ?. It is a package from ESRI (Environmental System Research Institute) that has a group of GIS software There are different software packages, but we are using one of these packages inside a GTS session

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Tier 2 Training

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  1. Tier 2 Training ArcGIS Basics

  2. What is ArcGIS ? • It is a package from ESRI (Environmental System Research Institute) that has a group of GIS software • There are different software packages, but we are using one of these packages inside a GTS session • There are a few software inside, and some of them are dependent on each other. • Current ArcGIS version is 9.2 (we have 9.1 and 9.2 available)

  3. Which software do we need to be concern about ? • There are three common software which you will be expose to hearing the most. • ArcMap, ArcCatalog, and ArcInfo Workstation • ArcMap and ArcCatalog are more dependent on each other • ArcInfo Workstation is more an independent program • You will be only working with ArcMap/ArcCatalog

  4. What’s the difference between them ? • ArcInfo Workstation is mostly a command line (typing) GIS program, whereas ArcMap/Arc Catalog are more of a visual (clicking) GIS program • There are differences between the capabilities that a visual program offers over a command line, and vice versa (All you have to know is that it exists) • Basically ArcInfo Workstation has been there for a much longer time before ArcMap was created.

  5. Licenses ? • There are 3 licenses for most ArcGIS packages, which are ArcView, ArcEditor, and ArcInfo • GTS only has 2 licenses, ArcView and ArcInfo. • ArcInfo license is 3 times more expensive than ArcView. • ArcView license is like seeing half the world. Where ArcInfo license unlocks the secrets to the universe.

  6. License with the Software ArcInfo Workstation ArcInfo License ArcMap Arcview License ArcCatalog

  7. How does it look like in GTS ?

  8. Questions?

  9. ESRI Spatial Data Format Discrete Data • Coverage (1983) – shared geometry topology model (container) • Shapefile (1994) - no topology • Geodatabase (1999) – coincident geometry topology (container) Discrete/Continuous Data (Raster Formats) • GRID Each spatial data format has its own benefits and limitations, so it is best to know what program you are working with.

  10. Data Types • When you break down any spatial data format into its geometric feature, it can only be one of the 3 spatial data types. • It can only be either a point, line or polygon. • That means you cannot have a feature file that contains both lines and polygons.

  11. Which Format works on which Software ?

  12. Data Format Shapefile • This is the format which you will be sharing your files with other people the most because it is only one feature, and not a container. • This is the file format that iMap, BaseMap Online Store, ILRR will take for uploading only. • A Shapefile consists of several files including: • .dbf (tables) • .prj (projection if it has one) • .shp (geometry) • .shx, .sbx (geometry index) A Shapefile

  13. Data Format Geodatabase • Personal Geodatabase (9.0 – 9.1) • File Geodatabase (9.2) • Arc SDE (Corporate Geodatabase) • Any point, line, or polygon file that is inside a Geodatabase is called a feature class • Its essentially a container that can do a lot more analysis than a shape file can do (more and more). • Yes, Geodatabase formats are like another way of unlocking the secrets to the universe.

  14. Layer File ? • Basically a file that directs (point) to another file. • It can direct to any spatial data format, including Shapefile, Coverage, and Geodatabase. • It is very useful to create a layer file that directs to some other path than saving the file into your workspace. • You can’t save the whole LRDW .sde file into your workspace because it is a large 4 gigabyte per file; however, you can save a layer file that directs it back to the LRDW original location. • You can query certain parts of the file into your layer file (very useful). • It is a very small file, since it does not store the data itself.

  15. VRI.sde Only renamed the file VRI_BC.lyr This file here can be any data format Queried only For St James area and renamed the file Fort_St_James_VRI.lyr Queried only for Prince George area and renamed the file PG_VRI.lyr

  16. Data Format Colour in ArcCatalog • Shapefiles are green • Coverages are yellow • Geodatabase files are gray • Layer files are yellow

  17. Questions?

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