GeoCue Server runs on top of a SQL database. The database stores all the metadata about your projects as well as all internal links to your geospatial data stored in the GeoCue warehouses. The database may be a full SQL database installation or a limited edition of SQL such as Microsoft SQL Server Express (Express)…
GeoCue Server runs on top of a SQL database. The database stores all the metadata about projects as well as all internal links to the geospatial data stored in the GeoCue warehouses. The database may be a full SQL database installation or a limited edition of SQL such as Microsoft SQL Server Express (Express) or…
This technical note provides instructions for adding logical or ‘Yes/No’ steps to a GeoCue checklist. These types of steps can be useful for tracking work that is not linked to a particular production tool. A common example would be adding a “Ship Data to Client” step at the end of a workflow. They can be…
GeoCue offers limited support for Mean High Water Tidal Datums. In GeoCue 2013, thirty-eight Mean High Water project areas (aka VDatum project areas released by NOAA on 13Aug2013) are supported and others will be added as they become available from NOAA. The twenty-five older VDatum project areas are also still included in the product. Transformation…
In the previous articles we provided an introduction to coordinate systems, geoids, datums and projections. This background information was needed in order to delve into more details on transformations and changing projections in the various software packages to help you do more with LIDAR data. This article will provide the information into transformations and changing…
When drawing polygons it definitely matters if they are drawn clockwise or counterclockwise. Why you ask? Well, because polygons have a “sense” of direction. The right hand side of the vector used to draw a polygon is considered to be the “inside.” If you draw your polygon clockwise the right-hand side of the vector becomes…
The NOAA Mean High Water (MHW) files (mhw.gtx) and the corresponding TSS files (tss.gtx) can be used to create GeoCue vertical datum grid files that support the Mean High Water Tidal datum in GeoCue. One MHW/TSS pair exists for each of the thirty eight NOAA defined coastal project areas. This note describes the GeoCue workflow…
We have more and more customers computing volumetrics using LP360 in combination with point cloud data sets derived from Dense Image Matching (DIM). Note that I will use DIM to mean both the process of generating a point cloud from a dense set of overlapping images as well as the product point cloud itself. Thus…
Geoid models in GeoCue are grid-based. The required file format is simply a rectangular grid of geoid undulation values, N, where h = H+N, with h representing the ellipsoid height and H the geoid height. The grid contains only undulation values. The grid points are required to be at regular geographic intervals in latitude and…
