The SGSI Library
The SGSI Library contains information that can help you solve GIS problems more effectively and to better use the products that we sell. If you’d like to see a topic addressed that isn’t here, please let us know.
Performance Tips For Mapinfo Pro
MapInfo Pro is fast. It uses spatial indexing as well as tabular indexing to speed up tabular (non-map) and map queries. It also has a truly superior ability to align coincident maps on screen on-the-fly, even if the map layers have dramatically different map projections and coordinates. On the other hand, no one’s ever satisfied […]
Geocoding: Concepts, Techniques & Secrets from SGSI
Geocoding is making data “mappable”. This can include several processes:
Matching records in two databases, one with address information but no lat/long data and a second, with that data.
Geocoding software links records in the two databases by matching text fields: e.g., zip codes, street names and address numbers.
Typically, after geocoding, your data contains its own position information and can be mapped without the reference street map or address dictionary.