ST_Transform() Explained in PostGIS | Convert GCS to PCS | EPSG:4326 to EPSG:3857

#gis
Welcome to Episode 4 of the Spatial SQL Series!

In this video, we explore ST_Transform(), one of the most important functions in PostGIS for working with Coordinate Reference Systems (CRS).

You will learn:

✅ What ST_Transform() is
✅ Why distance calculations can be wrong in EPSG:4326
✅ Difference between Geographic Coordinate Systems (GCS) and Projected Coordinate Systems (PCS)
✅ Convert coordinates from EPSG:4326 to EPSG:3857
✅ Why ST_Buffer(), ST_Distance(), and ST_DWithin() require projected coordinates
✅ Practical PostgreSQL/PostGIS SQL examples

Topics Covered:

• ST_Transform()
• EPSG:4326
• EPSG:3857
• GCS vs PCS
• Coordinate Reference Systems (CRS)
• SRID
• PostGIS Tutorial
• PostgreSQL GIS
• Spatial SQL
• QGIS Integration

📚 Need the SQL Queries & Practice Material?

Subscribe to the channel and leave a comment. I will share the PostgreSQL/PostGIS queries and supporting learning materials used in this video.

This tutorial is ideal for GIS Analysts, Remote Sensing Professionals, Students, Researchers, and anyone learning Spatial Databases with PostgreSQL and PostGIS.

Don't forget to Like, Share and Subscribe for more GIS and Spatial SQL tutorials!
#SpatialAnalysis

#ArcGISPro (ya #QGIS)

#GeoAI

#webgis
#STTransform
#PostGIS
#PostgreSQL
#SpatialSQL
#GIS
#QGIS
#CRS
#EPSG4326
#EPSG3857
#SpatialDatabase
#GeoSpatial
#GISAnalyst
#RemoteSensing
#LearnPostGIS
#sqltutorial
ST_Transform
ST Transform
STTransform
PostGIS ST Transform
EPSG 4326
EPSG 3857
GCS to PCS
Geographic Coordinate System
Projected Coordinate System
CRS Explained
SRID Explained
PostGIS Tutorial
Spatial SQL Tutorial
PostgreSQL GIS
QGIS PostGIS
Why Buffer Is Wrong

Видео ST_Transform() Explained in PostGIS | Convert GCS to PCS | EPSG:4326 to EPSG:3857 канала spatialTour