Problem with context shading names: "Alpha Argument length exceeds maximum"


Hi all,

My simulation seems to be running but I’m getting a weird warning message related to the names of my context geometries:

 ************* IDF Context for following error/warning message:
   ************* Note -- lines truncated at 300 characters, if necessary...
   *************   5269 Shading:Building:Detailed,
   ************* indicated Name=shdSrf_9_0_299d8c24-2566-4e7e-b1ec-9eae9dc52874_0_1_2_3_4_5_6_7_8_9_10_11_12_13_14_15_16_17_18_19_20_21
   ************* Only last 1 lines before error line shown.....
   *************   5270  shdSrf_9_0_299d8c24-2566-4e7e-b1ec-9eae9dc52874_0_1_2_3_4_5_6_7_8_9_10_11_12_13_14_15_16_17_18_19_20_21, !- Name
   ** Warning ** IP: IDF line~5270 Alpha Argument length exceeds maximum, will be truncated= shdSrf_9_0_299d8c24-2566-4e7e-b1ec-9eae9dc52874_0_1_2_3_4_5_6_7_8_9_10_11_12_13_14_15_16_17_18_19_20_2
   **   ~~~   ** Will be processed as Alpha=SHDSRF_9_0_299D8C24-2566-4E7E-B1EC-9EAE9DC52874_0_1_2_3_4_5_6_7_8_9_10_11_12_13_14_15_16_17_18_19_20_21

It’s looking like HB might be applying a faulty naming scheme where each new surface gets an additional number appended? Is this a problem?

PS: Attached definition takes about 2min to load. (1.4 MB)


Did you try to rename the shading surfaces? I’m not sure why the naming is like that but I can’t check your file right now.


Hi Mostapha, on the component that I’m using there is no input to specify the names - how do I do that?


There’s another component to see/get surface name. I believe it should also work for shading surfaces. You can try that one.


This worked for me, thanks. For future reference: the component is called Honeybee_Get or Set HB Object Name