Monday, March 25, 2013

New version of EulumdatTools 0.9.17.v20130325 released

A new version of EulumdatTools 0.9.17.v20130325 was published on March 25 at Improvements and bug fixes for 0.9.14.v20130204 are as follows:
  • Improved code quality metrics.
  • Add check for zero lamp lumens in IES reader code.
  • The version number was updated to 0.9.14.
Improvements and bug fixes for 0.9.15.v20130209 are as follows:
  • Improved handling of Eulumdat files with absolute photometry.
  • Make it easier to find place to enter license code once registered.
  • The version number was updated to 0.9.15.
Improvements and bug fixes for 0.9.16.v20130222 are as follows:
  • Made sequence of properties in Project Explorer and Product Properties view the same.
  • Automated build.
  • First version of optional IES validator (install separately).
  • Improved stability on very large file sets (5000+ files).
  • The version number was updated to 0.9.16.
Improvements and bug fixes for 0.9.17.v20130325 are as follows:
  • Make C angles for C-Gamma page in editor display angles from 90° - 270° instead of 270° - 0°.
  • Add consistency check for gamma 0 for all C-planes (nadir).
  • Improved stability even more on very large file sets (5000+ files).
  • Fixed problem with updating for new releases.
  • Improved version of optional IES validator (install separately).
  • The version number was updated to 0.9.17.

Registered users should not upgrade using Check for upgrades but download a complete new version and register that using their existing license keys. The problem with updating was fixed, so this should be the last time. New users can download an apply for 30 day free evaluation license at the installation site


For use in Eclipse you can use the standard Eclipse update site For stand alone RCP versions of EulumdatTools choose your platform and perform update after installation.:

Friday, March 22, 2013

Inconsistent gamma values in EULUMDAT (and IES) files.

When we look at the definition of a C-gamma distribution, we can conclude that gamma angle 0° for each C-plane points in the same direction: straight down. Similarly the gamma angle 180° points straight up, for every C-plane. 25721 illum Consequently it should be considered an ERROR in the file when the luminous intensity values for these coincident angles in either cd/klm, candelas, or footcandles are different! Different gamma 0 values Yet there are many files that have this error! What would be the value you use to calculate glare in that direction, or the illuminance? I think these problems result from the measurement protocols, where the anomalies of temperature variation or impact of orientation during measurement is not properly post-processed. In the next release of EulumdatTools these errors are caught, so that they can be manually corrected. Different gamma 0 values problem view