Constructor Functions

Each temporal type has constructor functions with the same name as the type and with a suffix for the duration, where the suffix ‘inst’, ‘i’, ‘seq’, and ‘s’ correspond, respectively, to the durations instant, instant set, sequence, and sequence set. Examples are tintseq or tgeompoints. Using the constructor function is frequently more convenient than writing a literal constant.

We give next the constructor functions for the various durations.