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Dear Pauline, You have to be aware that
changing the GEOMETRY mode from “3D_Data” to “Manual”
deletes all the geometric information. Therefore, it is
important that you save the last version with the GEOMODE=3D_Data. Adding/deleting surfaces
changes the geometry and it really depends on WHAT you change if your shading matrix
is still valid. The shading matrix
includes sunlit fraction for external windows. The link between the SHM and the
surface in the B17 file is done by the surface ID. If your modifications
doesn’t effect the shading and you don’t change the external
windows which are included in the SHM file, the shading matrix can be
used and will be correct for these windows. If your changes effect
the shading than you have to perform the changes in Trnsys3D. You can use the “update”
function of TRNBuild Best regards, Von: Pauline GELIN
[mailto:p.gelin@katene.fr] Dear all, First of all, thank you very much for your answers to my earlier
questions. I really appreciate and hope to do the same later when I am better. Meanwhile, I have one big
problem for my projects. So I am taking the liberty to send you my concern again. After drawing my building and its shading objects with the TRNSYS3D
plugin in Sketchup, I want to modify it in TRNBuild (for example to add a
window, so I change the geometry mode on manual). after doing this, I can’t
generate a shm file (shading matrix). I guess it is because links
for calculations were cut by manual mode. I would like to know, for my next projects, if I can
generate this file before the modifications, and then
switch to manual mode. Will the shading datas be correct? Are they calculated based on the location of walls or
real windows ones ? Thank you very much in advance for your help. Pauline Gelin, Katene engineer, fluid design office. |