# Openalea **URL:** https://fspm.discourse.group/c/software/openalea/10.md [Latest](https://fspm.discourse.group/latest.md) · [Categories](https://fspm.discourse.group/categories.md) · [Tags](https://fspm.discourse.group/tags.md) --- ## [About the Openalea category](https://fspm.discourse.group/t/about-the-openalea-category/16)
**Author:** [@michele.butturini](https://fspm.discourse.group/u/michele.butturini)\ **Replies:** 0
\[To be completed…\] Do you want to help write the description for this category? You are very welcome to do so! Then please contact the admins. --- ## [New OpenAlea Release](https://fspm.discourse.group/t/new-openalea-release/391)
**Author:** [@thomasA](https://fspm.discourse.group/u/thomasA)\ **Replies:** 0\ **Last updated:** [February 20, 2026, 1:54pm UTC](https://fspm.discourse.group/t/new-openalea-release/391 "2026-02-20T13:54:45Z")
We are proud to announce the release 2025 of OpenAlea platform! The following packages have been released: Formalism and data structure - openalea.plantgl 3.23.2: 3D Plant Geometric Library - openalea.mtg2.3.0: Multi… --- ## [Up-to-date documentation and setup instructions](https://fspm.discourse.group/t/up-to-date-documentation-and-setup-instructions/386)
**Author:** [@Neil\_White](https://fspm.discourse.group/u/Neil_White)\ **Replies:** 2\ **Last updated:** [December 5, 2025, 12:22am UTC](https://fspm.discourse.group/t/up-to-date-documentation-and-setup-instructions/386 "2025-12-05T00:22:30Z")
As part of a review of technologies for light interception and distribution in fruit tree canopies (esp. avocado) I’m looking for the most up-to-date instructions for setting up OpenAlea on a Mac and Windows. I’m intere… --- ## [C4 model similar to Farquhar-wheat](https://fspm.discourse.group/t/c4-model-similar-to-farquhar-wheat/383)
**Author:** [@maryfrancis](https://fspm.discourse.group/u/maryfrancis)\ **Replies:** 0\ **Last updated:** [August 28, 2025, 7:27pm UTC](https://fspm.discourse.group/t/c4-model-similar-to-farquhar-wheat/383 "2025-08-28T19:27:53Z")
Hello, Is there an implementation of a C4 photosynthesis model in the OpenAlea project similar to the “Farquhar Wheat” model ( farquhar-wheat/farquharwheat at 62bd7bf117de613f25d1367a10ab528c46903f14 · openalea-incubato… --- ## [\[SOLVED\] Exporting and importing LPY model in obj](https://fspm.discourse.group/t/solved-exporting-and-importing-lpy-model-in-obj/289)
**Author:** [@Francesca](https://fspm.discourse.group/u/Francesca)\ **Replies:** 2\ **Last updated:** [August 9, 2024, 2:36pm UTC](https://fspm.discourse.group/t/solved-exporting-and-importing-lpy-model-in-obj/289 "2024-08-09T14:36:44Z")
Hello everyone, I am currently working on a project in which: I should provide an OBJ version of my virtual plant (OBJ1) to another researcher. He will “prune” the plant and will re-send me a new OBJ of the virtual pr… --- ## [Visualising multiple MTGS](https://fspm.discourse.group/t/visualising-multiple-mtgs/278)
**Author:** [@Neil\_White](https://fspm.discourse.group/u/Neil_White)\ **Replies:** 4\ **Last updated:** [May 30, 2024, 1:02am UTC](https://fspm.discourse.group/t/visualising-multiple-mtgs/278 "2024-05-30T01:02:01Z")
I am creating MTGs from virtual experiments using VLAB. I’d like to bring several of these MTGS into one display using Openalea. It’s been a long while since I have done this. I have concatenated my MTGs and edited so t… --- ## [\[SOLVED\] Error visualising MTG](https://fspm.discourse.group/t/solved-error-visualising-mtg/256)
**Author:** [@Neil\_White](https://fspm.discourse.group/u/Neil_White)\ **Replies:** 2\ **Last updated:** [February 23, 2024, 2:17am UTC](https://fspm.discourse.group/t/solved-error-visualising-mtg/256 "2024-02-23T02:17:33Z")
I am modelling macadamia using VLAB and generating a MTG to store the tree at various times. When I try to view the tree using the code in display.py it throws an ArgumentError. It seems to occur due the last line in t… --- ## [\[SOLVED\] Installation on Apple Silicon](https://fspm.discourse.group/t/solved-installation-on-apple-silicon/216)
**Author:** [@Neil\_White](https://fspm.discourse.group/u/Neil_White)\ **Replies:** 12\ **Last updated:** [January 21, 2024, 10:50pm UTC](https://fspm.discourse.group/t/solved-installation-on-apple-silicon/216 "2024-01-21T22:50:50Z")
I have a partial conda openalea environment running, but I’m having trouble with plantgl. When I run from openalea.plantgl.all import \* I get errors like dlopen(/Users/neilwhite/miniconda3/envs/openalea/lib/python3.1… --- ## [Trying to export lpy model into MTG or XYZ coordinates](https://fspm.discourse.group/t/trying-to-export-lpy-model-into-mtg-or-xyz-coordinates/234)
**Author:** [@Francesca](https://fspm.discourse.group/u/Francesca)\ **Replies:** 5\ **Last updated:** [December 13, 2023, 8:44am UTC](https://fspm.discourse.group/t/trying-to-export-lpy-model-into-mtg-or-xyz-coordinates/234 "2023-12-13T08:44:20Z")
Hello, I would like to export my Lpy model into some format in which my arhitecture can be understood by other people not familiar with LPy I don’t know if the best format is MTG or if there is a way to extract the spat… --- ## [Working with MTG in Openalea and exporting the MTG to GroIMP](https://fspm.discourse.group/t/working-with-mtg-in-openalea-and-exporting-the-mtg-to-groimp/197)
**Author:** [@michele.butturini](https://fspm.discourse.group/u/michele.butturini)\ **Replies:** 9\ **Last updated:** [December 10, 2023, 5:13pm UTC](https://fspm.discourse.group/t/working-with-mtg-in-openalea-and-exporting-the-mtg-to-groimp/197 "2023-12-10T17:13:30Z")
Hi, I am using plantscan3D to reconstruct the topology of a leafless plant from a 3d point cloud. Plantscan3D gives me the following mtg as output, that is a list of nodes, instead of internodes. Do you know if Openalea… --- ## [Where installing Openalea\_Lpy](https://fspm.discourse.group/t/where-installing-openalea-lpy/206)
**Author:** [@Francesca](https://fspm.discourse.group/u/Francesca)\ **Replies:** 2\ **Last updated:** [May 25, 2023, 10:40am UTC](https://fspm.discourse.group/t/where-installing-openalea-lpy/206 "2023-05-25T10:40:18Z")
Hello everyone, I am not sure that’s the right place to ask but I would like to have some opinions about that. I am a plant scientist working on hazelnut, thus, I hope you can forgive me if this is a simple computer sci…