junqi zhu

GPU flux radiation model does not work with Grid clone

Hi Junqi, Great to see your interest in this and checking the code carefully. From diffuse light module I see that the light is shared according to coefficients that depend on the position of each node. E.g. 12 light nodes of the bottom layer emit diffuse radiation weighed by (0.003218/0.205) while at the top of the hemisphere the weight is (0.007096/0.998).Could you please explain what is the meaning of these coefficients? The first coefficient (e.g., 0.003218 ) represent the weight of the amount...

Hi Marco, I have a model for simulating the daily course of the sun based on the exercise book of Jan Goudriaan. It was included in the grapevine model and the whole source code is available at the GroIMP gallery. See http://134.76.18.36/wordpress/unpublished/gallery/grapevinexl-model/ Cheers Junqi On Wed, 5 Jan 2022 at 22:18, marco moriondo morio1968@users.sourceforge.net wrote: Hi, I wonder if someone already developed a model for simulating the daily course of the sun based on latitude and day...

Hi Micha, thanks very much for the detail explanation. I will have a try of the xl file. Cheers junqi On Sun, 3 Oct 2021 at 06:03, micha mh1@users.sourceforge.net wrote: hi junqi, each interface and class belongs to a single file of the same name as the interface or class. and the file extension should be ".xl" instead of ".rgg". have a look at the "FSPM model" within the groimp own example gallery to see how to deal with interface, classes and pure -xl files. cheers, micha Sent from sourceforge.net...

Can interface be used in GroIMP?

The link for the "for modeller" session is broken. I think the information for this session is very useful. it would be very nice if some one can fix the links. best regards. junqi

Video generator is not working

Hi there: is it possible to run the radiation module twice within one step? like for the first step just run the direct radiation to determine which part is sun leaf and which part is shade leaf, then in the second step update both direct radiation and diffuse radiation to calculate the whole photosyntheisis. i recently met a request to estimate the contribution of sun leaf and shade leaf in canopy photosynthesis. i configure the code like the followings, but it still just run the radiation module...