Anchorage, Alaska, USA. February 12, 2015 –The new Global Mapper Extension from DAT/EM Systems International connects Global Mapper® from Blue Marble Geographics® with any edition (Professional, Feature Collection or Lite) of DAT/EM's famous Summit Evolution™ stereoplotter. The extension is provided at no additional cost with any purchased or supported Summit Evolution license. It enables Summit Evolution to be a 3D digitizing device for Global Mapper and allows Global Mapper projects to utilize the tools of Summit Evolution.
Global Mapper is an affordable, powerful, and easy-to-use GIS application capable of displaying, converting, and analyzing virtually any type of geospatial data. Once connected, the DAT/EM Toolbar activates Summit Evolution functions directly from Global Mapper's home window. Existing DAT/EM Toolbar functions include:
The second generation beta is included with the Global Mapper Version 16 or higher and Summit Evolution version 7.1 or higher. Join DAT/EM Systems International and Blue Marble Geographics for a webinar titled “Introducing the New DAT/EM Toolbar for Global Mapper” on March 5, 2015 at 2:00 pm EST. For more information or to register visit www.bluemarblegeo.com/webinars.
About Blue Marble Geographics. Blue Marble Geographics of Hallowell, Maine is a leading developer and provider of software products and services for highly accurate geospatial data conversion solutions. Blue Marble is known for their coordinate conversion and file format expertise and is the developer of The Geographic Calculator, GeoCalc SDK, Global Mapper, LiDAR Module for Global Mapper, and Global Mapper SDK. The company has been writing GIS software tools and solutions for over twenty years and currently serves hundreds of thousands of users worldwide. For more information, please visit www.bluemarblegeo.com or email email@example.com.
Potential issues with JPEG compression:
This month, in honor of his recent Inpho Reseller Training in Stuttgart, Germany, we are offering an INPHO Tech Tip by Steve Hamilton.
In Inpho OrthoVista, JPG compression in the input images can cause issues with multiple single-pixel seamlines being generated. This creates a mosaicking issue and slows down processing considerably. In general terms, background orthophoto pixel values of zero (0) are treated as unsubstantiated and are not included in seamlining/feathering operations. When JPG compressed, the background zero values become “substantiated”, or are assigned some value other than 0, which causes them to be included in subsequent seamline generation and mosaicking operations.
If you look closely at the image, you can see that the zero-value pixels with triangular seamlines are adjacent to background pixels that have been assigned a grey value other than 0, forcing seamline generation.
When processing orthophotos for subsequent mosaicking and feathering operations, especially when using aerial imagery flown “off-axis”, or in some direction other than N-S or E-W, it is best to forego image compression to avoid inadvertent creation of background pixels with brightness values of 1 or greater.