MySQL 8.0.11 comes with a catalog of 5108 spatial reference system (SRS) definitions. In a previous post, we covered the definitions of geographic SRSs. In this post we’ll go into the details of projected SRSs. (If you haven’t done so already, I suggest you read the previous post first.)
Projected SRSs are flat, Cartesian coordinate systems created by projecting points on (an oblate spheroidal model of) Earth onto a flat surface.…
MySQL 8.0.11 comes with a catalog of 5108 spatial reference system (SRS) definitions, and 479 of these are geographic. We usually just refer to them by SRID, but in this blog post we’ll dive into the details and try to understand the definition itself.…
One of the big features of MySQL 8.0 is geography support. MySQL now has a catalog of spatial reference systems (SRSs), of which almost 500 are geographic. Most functions also support geographic computations. What about indexes?
MySQL 8.0 comes with InnoDB spatial indexes for geographic data.…
MySQL 8.0 has many new GIS features, including a catalog of spatial reference systems (SRSs) and support for geographic (latitude-longitude) computations.
In a Cartesian SRS, it doesn’t really matter which coordinate is on which axis. The axes are orthogonal and the units are the same on both axes, so if a user consistently puts the X value in the Y coordinate and the Y value in the X coordinate, it doesn’t affect computations (in the functions MySQL currently supports).…
MySQL 8.0.11 comes with a catalog of 5108 spatial reference systems (SRSs): 4628 projections (flat maps), 479 geographic (ellipsoidal) representations of Earth, and one Cartesian all-purpose abstract plane (SRID 0).
Projections
Projected SRSs are Cartesian planes, just like SRID 0.…
MySQL 8.0 brings a lot of new spatial features. The main feature is the support for multiple spatial reference systems (SRSs).
Spatial reference systems is not a new concept in MySQL, but 8.0 is the first version where it affects computations, and it’s the first version where users actually have to think about it.…