Blue Marble offers free videos for individuals interested in learning more about its GIS and geodetic software.
Blue Marble webcasts are pre-recorded videos about GIS and geodetic topics and software tutorials. Registration isn't required to view these videos. Subscribe to Blue Marble's YouTube channel to receive notifications of when webcasts are available. Announcements of video releases are also made on the Blue Marble Facebook, LinkedIn, or Twitter accounts.
GeoTalks Express is a series of hour-long webinars focusing on particular aspects of Blue Marble geospatial technology.
All sessions are free and attendees are encouraged to sign up for multiple webinars. However, registration is required as online seats are limited.
In the August edition of the Geographic Calculator webinar, we will explore vertical datums and transforming 3d data. In the 2014 release of Geographic Calculator, there was a change in how we work with vertical coordinate systems. This change allows more flexible interaction with vertical datums, and makes it easier to define custom transformations. Throughout Calculator, 3D data is increasingly common, whether we are mapping floodplains, sea beds, subsurface features or modeling on the surface. Data may come in the form of databases of numeric coordinates, vector based contour maps, LiDAR point clouds, or raster surface models. Wherever this 3D data comes from, the elevations are based on a specific vertical reference, and transforming from one to another must be done properly, or analysis done on the models will be flawed. This 60 minute session will explore the complexities of handling this data and their coordinates.