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Advanced ArcGIS. Yafang Su (yafang@ucla.edu) Academic Technology Services Geocoding Geoprocessing. Creating point features from table. Three Ways: In ArcMap: 1. Tools/Add XY data 2. Add Data, then Right click and choose Display XY data. In ArcCatalog:
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Advanced ArcGIS Yafang Su (yafang@ucla.edu) Academic Technology Services Geocoding Geoprocessing
Creating point features from table Three Ways: In ArcMap: 1. Tools/Add XY data 2. Add Data, then Right click and choose Display XY data. In ArcCatalog: 3. Right click and choose Create Feature Class/From XY Table. Created by Yafang Su at UCLA-Academic Technology Services
Address Geocoding • Two datasets: • an address event table • a reference data source. A reference data source can be any polygon, point, or line feature class that contains the necessary address attributes. Created by Yafang Su at UCLA-Academic Technology Services
Address Matching • The formula is ((Candidate address - minimum address) / range). • In the example, ((824-800) / 98) or (24/98), which is 0.245, or 24.5%. Created by Yafang Su at UCLA-Academic Technology Services
Geocoding Service • Single Field: Use one key field to match • US Streets with Zones: Two numeric ranges left and right side, with left and right zones (city names or zipcodes) • Zip 5-Digit: Five Digit Zipcode Created by Yafang Su at UCLA-Academic Technology Services
Output Feature Class All the attributes from the address table + 3 new fields: • Status: “M”, “U” or “T” • Score: 0-100 • Side “L” or “R” Created by Yafang Su at UCLA-Academic Technology Services
Buffer Wizard • Buffer from selected features. • Use a layer's attribute to determine the buffer distance. • Create multiple ring buffers using a fixed distance, for example, 50, 100, and 150 meters • Change distance units interactively. • Buffer inside, outside, or inside and outside polygons using a set distance. • Buffer a set distance outside polygons and include the interior of the polygon in the output. • Dissolve contiguous buffers into a single feature or create individual, overlapping buffers for each feature being buffered. Created by Yafang Su at UCLA-Academic Technology Services
Geo-processing Wizard 5 Functions: • Dissolve • Merge • Clip • Intersect • Union Created by Yafang Su at UCLA-Academic Technology Services
Output • Coordinate system: same as the data frame (one exception save as a feature class of GDB) • Attributes • Shapefile: no area, perimeter or length • Feature class in GDB: • Polygon: area, perimeter, length • Line: length • Point: no Created by Yafang Su at UCLA-Academic Technology Services
Reference Books 1. Objects Developer’s Guide 2. Getting Started in VB 3. StreetMap USA 4. ArcGIS Object Module 5. Exploring ArcObjects Volume 1 6. Exploring ArcObjects Volume 2 7. Finding Locations Created by Yafang Su at UCLA-Academic Technology Services