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feat(PipeIndoor): add PipeIndoor - #156

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MingboPeng merged 1 commit into
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Mar 23, 2026
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MingboPeng merged 1 commit into
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MingboPeng merged commit 0f5e78e into master Mar 23, 2026
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the Ironbug library by introducing a new capability to model indoor pipes within HVAC systems. It provides a dedicated Grasshopper component for users to define these pipes, along with the necessary underlying HVAC object to integrate them into OpenStudio energy models. This addition allows for more comprehensive energy simulations by incorporating detailed pipe construction and ambient thermal conditions.

Highlights

  • New Grasshopper Component: Introduced the IB_PipeIndoor Grasshopper component, allowing users to define indoor pipes within their models.
  • HVAC Object Implementation: Added the IB_PipeIndoor HVAC object, which represents indoor pipes and facilitates their integration into OpenStudio models.
  • Configurable Pipe Properties: Enabled the specification of pipe construction and ambient temperature zones, crucial for accurate heat transfer calculations.

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Code Review

This pull request introduces the PipeIndoor component. The implementation is generally good, but I've found a potential NullReferenceException in the Grasshopper component's SolveInstance method. A null check should be added to prevent the component from crashing when a null value is provided for the ambient zone. Other than that, the changes look solid.

var obj = new HVAC.IB_PipeIndoor();

HVAC.BaseClass.IB_ThermalZone zone = null;
if (DA.GetData(1, ref zone)) obj.SetAmbientTemperatureZone(zone.GetRoomName());

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high

There is a potential NullReferenceException here if the ambientZone_ input is connected but provides a null value. DA.GetData() can return true even if the zone variable is null (for example, if the connected data is null or cannot be cast to HVAC.BaseClass.IB_ThermalZone). You should add a null check for the zone variable before calling zone.GetRoomName() to prevent the component from crashing.

            if (DA.GetData(1, ref zone) && zone != null) obj.SetAmbientTemperatureZone(zone.GetRoomName());

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🎉 This PR is included in version 1.22.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀

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