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About module "gis" This module is intended to support utilities related to Geographic Information Systems (GIS). Although Tinfour is not intended to be a GIS system, the GIS community is a good place to find useful test and example data sets. This package provides modules that allow Tinfour applications to access those data sets. Currently, support is included for Lidar: LAS and LAZ files as a source of input vertices Shapefiles: Shapefiles as a source of input vertices or constraint boundaries Dependencies As usual, the Tinfour coding practice is to avoid external dependencies as much as possible. However, the lidar-related modules require an external dependency named "laszip4j" to read LAZ (zipped LAS) files. The Shapefile modules have no external dependency at this time. Map Projections and Datums (GIS-specific topics) At present, there is no support for map projections and datums. These GIS-specific are outside the scope of Tinfour and would add many, many external dependencies. This design choice is a disadvantage from a GIS perspective because it does not allow Tinfour to perform coordinate transformations when loading data.