# ifcplusplus1

**Repository Path**: xujunyf917/ifcplusplus1

## Basic Information

- **Project Name**: ifcplusplus1
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-12-25
- **Last Updated**: 2024-12-25

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

ABOUT IFC++
=============

IFC++ is an open source IFC implementation for C++.
It is very fast, but it has not the lowest possible memory footprint, because it has a complete class model.



Benefits of the complete class model are (among others):
- you can easily instantiate objects and access member variables, for example:
```cpp
  shared_ptr<IfcCartesianPoint> ifcPoint = make_shared<IfcCartesianPoint>();
  shared_ptr<IfcPolyLoop> polyLoop = make_shared<IfcPolyLoop>()
  polyLoop->m_Polygon.push_back(ifcPoint);
```

- you can navigate the model easily by accessing member variables directly, including inverse attributes:
```cpp
shared_ptr<IfcBuildingStorey> currentBuildingStorey = ...;
for (auto it : currentBuildingStorey->m_IsDecomposedBy_inverse)
{
   shared_ptr<IfcRelAggregates> relAggregates(it);

   for (auto it2 : relAggregates->m_RelatedObjects)
   {
      shared_ptr<IfcObjectDefinition> child_obj = (it2);
      shared_ptr<IfcWallStandardCase> wall = dynamic_pointer_cast<IfcWallStandardCase>(child_obj);
      if(wall)
      {
         // do something with wall
      }
    }
 }
```
  Inverse attribute pointers are automatically generated by IFC++ for all object references in the model.
  
- casting is possible for all types:
 ```cpp
  shared_ptr<IfcPropertySet> pset = dynamic_pointer_cast<IfcPropertySet>(relatingPropertyDefinition);
  ```

- Professional support is available for bug fixing or custom implementations on www.ifcquery.com.


 

  
## License
The project is published under the MIT license, which means that you can use it for any purpose, personal or commercial. There is no obligation to publish your source code.


## Details and download of executable
Open source example application for Qt here available: https://github.com/ifcquery/ifcplusplus/releases


## How to build the library and example application on Windows and Linux
https://github.com/ifcquery/ifcplusplus/wiki/Build-instructions


## BIMViewPlus: Advanced IFC viewer with integrated file browser, model split & export to IFC/glTF/html
[https://github.com/BIMViewPlus/BIMViewPlus](https://github.com/BIMViewPlus/BIMViewPlus)

The IFC viewer BIMViewPlus is based on IFC++, but is not open source.

BIMViewPlus has an integrated file browser and a powerful search feature. 

From the search results, a partial model can be extracted and exported to IFC4 or HTML/glTF/glb.

![Screenshot 2024-04-01 221420](https://github.com/ifcquery/ifcplusplus/assets/150842425/4772a84c-446d-4303-8531-6135f34f1e5a)