PluginLCA
The PluginLCA is used to export the material quantities and their cost groups according to DIN276. Its the most basic Plugin currently. The result are two .csv file that hold information about the used materials quantities in volume and mass and lie the foundation for a later analysis with LCA databases. We are planning to automate this link so a complete automated LCA can be carried out based on the IFC data.
How to install?
Step by step
To install PluginLCA: you need to do the following
(in the root directory of the repo, here is the pyproject.toml file)
pip install -e '.[PluginLCA]'
The bim2sim core installation needs to be done before.
Test install
Structure of the plugin
The following figure shows the structure of the LCA plugin. Here you see which tasks are used and how they are combined.
---
title: plugin LCA
---
flowchart TB
subgraph taskLoadIFC["task LoadIFC"]
subgraph ""
tLoadIFC["bim2sim > tasks > common >
LoadIFC"]
extLoadIFC(" Load all IFC files from PROJECT. " )
end
stateLoadIFC[("state
(reads/touches)")]
tLoadIFC -- ifc_files --> stateLoadIFC
end
subgraph taskCreateElements["task CreateElements"]
subgraph ""
tCreateElements["bim2sim > tasks > common >
CreateElements"]
extCreateElements(" Create bim2sim elements based on information in
IFC. " )
end
stateCreateElements[("state
(reads/touches)")]
stateCreateElements -- ifc_files --> tCreateElements
tCreateElements -- elements, ifc_files --> stateCreateElements
end
subgraph taskBindStoreys["task BindStoreys"]
subgraph ""
tBindStoreys["bim2sim > tasks > common >
BindStoreys"]
extBindStoreys(" None. " )
end
stateBindStoreys[("state
(reads/touches)")]
stateBindStoreys -- elements --> tBindStoreys
tBindStoreys -- elements --> stateBindStoreys
end
subgraph taskVerifyLayersMaterials["task VerifyLayersMaterials"]
subgraph ""
tVerifyLayersMaterials["bim2sim > tasks > bps >
VerifyLayersMaterials"]
extVerifyLayersMaterials(" Verifies if layers and materials and their
properties are meaningful. " )
end
stateVerifyLayersMaterials[("state
(reads/touches)")]
stateVerifyLayersMaterials -- elements --> tVerifyLayersMaterials
tVerifyLayersMaterials -- invalid --> stateVerifyLayersMaterials
end
subgraph taskEnrichMaterial["task EnrichMaterial"]
subgraph ""
tEnrichMaterial["bim2sim > tasks > bps >
EnrichMaterial"]
extEnrichMaterial(" Enriches material properties that were recognized
as invalid LOD. " )
end
stateEnrichMaterial[("state
(reads/touches)")]
stateEnrichMaterial -- elements, invalid --> tEnrichMaterial
tEnrichMaterial -- elements --> stateEnrichMaterial
end
subgraph taskExportLCA["task ExportLCA"]
subgraph ""
tExportLCA["bim2sim > plugins > PluginLCA >
bim2sim_lca > task >
ExportLCA"]
extExportLCA(" Exports a CSV file with all relevant quantities of
the BIM model. " )
end
stateExportLCA[("state
(reads/touches)")]
stateExportLCA -- ifc_files, elements --> tExportLCA
direction RL
end
taskLoadIFC --> taskCreateElements
taskCreateElements --> taskBindStoreys
taskBindStoreys --> taskVerifyLayersMaterials
taskVerifyLayersMaterials --> taskEnrichMaterial
taskEnrichMaterial --> taskExportLCA
This figure is generated by the script template_mermaid.py (see Visualization of bim2sim plugin structure).