A short demo of using the XBim toolkit to process models, generate geometry and extract semantic and geometric data
A short demo of using the XBim toolkit to process models, generate geometry and extract semantic and geometric data
Uses XBimEssentials and XBimGeometry to open, parse and generate xbim and wexbim semantic and geometric models.
Using that it shows how to get bounding boxes of all products in the model and show their dimensions and placement.
My question was not relevant, please ignore.
Hi All,
Is there anyway I can find the height of each layer of the wall?
Right now the code I am using is as follows:
IfcMaterialLayerSetUsage ifcMaterialLayerSetUsage = (IfcMaterialLayerSetUsage)ifcWall.GetMaterial();
if (null != ifcMaterialLayerSetUsage)
{
IfcMaterialLayerSet layerSet = ifcMaterialLayerSetUsage.ForLayerSet;
if (null != layerSet)
{
IItemSet<IfcMaterialLayer> lstMaterLayer = layerSet.MaterialLayers;
//If three layers, then it is external
if (null != lstMaterLayer)
{
int noOfLayers = lstMaterLayer.Count();
if (noOfLayers == 3)
{
var externalLayer = lstMaterLayer.First();
externalLayerThickness = externalLayer.LayerThickness;
var midLayer = lstMaterLayer.ElementAt(1);
cavityThickess = midLayer.LayerThickness;
var innerLayer = lstMaterLayer.ElementAt(2);
steelThickness = innerLayer.LayerThickness;
///**** doubt steelLayerHeight = innerLayer.????
}
//One layer assume it is steel, may be buggy but now this is an assumption
else
{
steelThickness = layerSet.TotalThickness;
}
}
}
}
Best regards,
Jojo
Hi Andy,
Thanks very much for your effort.
I am in the process of finding four bottom coordinates of the wall. My code follows works for most of the cases.
foreach (var shapeInstance in productShape)
{
var shapeGeometry = context.ShapeGeometry(shapeInstance.ShapeGeometryLabel);
XbimMatrix3D transformation = shapeInstance.Transformation;
XbimPoint3D location = shapeGeometry.BoundingBox.Location;
XbimRect3D boundingBox = shapeGeometry.BoundingBox;
XbimPoint3D point1 = transformation.Transform(location);
XbimPoint3D point2 = ProjectTo(point1, transformation.Right, boundingBox.SizeX);
XbimPoint3D point3 = ProjectTo(point2, transformation.Up, boundingBox.SizeY);
XbimPoint3D point4 = ProjectTo(point3, transformation.Left, boundingBox.SizeX);
}
My ProjectTo is:
static public XbimPoint3D ProjectTo(XbimPoint3D p, XbimVector3D dirn, double dist)
{
XbimPoint3D p1;
p1 = p + dirn * dist;
return (p1);
}
However when transformation becomes an identity, it is not giving the correct coordinates. I have attached my IFC file. Can you please tell what I am missing here?
Best regards,
JJ
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