wiki:sns:intactgh:lists []

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==== Using lists for Intact components ====
All components support the use of lists as inputs for geometry and others such as materials for a component block or the load magnitude for the various load components. \\
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The supported ratios of geometry to other input items are:
  * (a) 1:1 (1 geometry and 1 material)
  * (b) N:1 (N geometries and 1 material)
  * %%(c)%% N:N (N geometries and N materials).

{{ :wiki:sns:intactgh:lists_example.png }}

With loads, the list behavior is the same as with geometry and materials.  
  * 1:1 (1 geometry and 1 load metadata)
  * N:1 (N geometries and 1 load metadata)- this is effectively one load that is applied to the union of geometries.
  * N:N (N geometries and N load metadata)- this create N different loads paired by index.

Here, “load metadata” refers to all data for that load type (e.g. 1 item for scalar loads, 2 items for vector loads: magnitude + direction).  

{{:wiki:sns:intactgh:list_operation_with_loads.png}}