Custom Catalogue Items and Definitions

Question

I am creating some Custom Catalogue Items and adding custom definitions to the catalogue items. The steps I followed are as below. 
 
 1. Create New Definition File in Definition Editor. 
 2. Create Custom Properties under the new Definition File. 
 3. Create a New Discipline Group in Catalogue Editor. 
 4. Create a New Catalogue Type in New Discipline Group and applied custom properties which I created in Step 2. 
 5. Create a New Catalogue Item. 
 6. Apply Catalogue Item to 3D Smart Solids. 
 
 The question I have is related to Custom Properties, the reason I have created custom properties is to fill in the information as required and it will appear as part of BIM information. Everything is working as planned apart from one custom property (Length, as shown below image). OpenBuilding is automatically filling this information and I can't edit it. This is in one manner good, but I want to understand why OpenBuilding is filling this automatically and what other information I can set up this way that it will read element property and fill in automatically.

Sandeep Punewar · Accepted Answer

Hi Jaimin, 
 Length is a standard DataGroup structural quantities schema property ( StructuralQuantities). This property is derived by calculation based on geometry. Can you please try rename the 'Length' property to something else ? 
 HTH, 
 Regards, 
 Sandeep

Sandeep Punewar · Answer

Hi Jaimin, 
 Please find the table below.

Schema Property Name 
 Data File Lookup 
 Calculated 
 Display Name 
 Description

Length 
 
 x 
 Length 
 Net member length

AreaCrossSection 
 
 Section file 
 
 Cross Section Area 
 Section area (section file)

AreaCrossSectionModeled 
 
 X 
 Cross Section Area (Modeled) 
 Section area (modeled)

FeatureVolume 
 
 X 
 Feature Volume 
 Feature (openings, copes) volume

VolumeGross 
 
 X 
 Gross Volume 
 AreaCrossSectionModeled x Length

VolumeGrossModeled 
 
 X 
 Gross Volume (Modeled) 
 Quantus volume

VolumeNet 
 
 X 
 Net Volume 
 VolumeGross x FeatureVolume

VolumeNetModeled 
 
 X 
 Net Volume (Modeled) 
 VolumeGrossModeled x FeatureVolume

UnitWeight 
 Section file 
 
 Unit Weight 
 Unit weight of section

MaterialDensity 
 Dataset component 
 
 Material Density 
 Material density

LengthXUnitWeight 
 
 X 
 Weight (Length * Unit Weight) 
 Length x UnitWeight

VolumeGrossXDensity 
 
 X 
 Weight (Gross Volume * Density) 
 VolumeGross * MaterialDensity

VolumeGrossModeledXDensity 
 
 X 
 Weight (Gross Volume * Density) [Modeled] 
 VolumeGrossModeled * MaterialDensity

VolumeNetXDensity 
 
 X 
 Weight (Net Volume * Density) 
 VolumeNet * MaterialDensity

VolumeNetModeledDensity 
 
 X 
 Weight (Net Volume * Density) [Modeled] 
 VolumeNetModeled * MaterialDensity

Thanks and Regards, 
 Sandeep

Sandeep Punewar · Answer

Hi Jaimin, 
 There are schema files those are meant to calculate quantities and these schema files can be found under "C:\Program Files\Bentley\OpenBuildings CONNECT Edition\OpenBuildingsDesigner\DataGroupSystem" where you will see files with the name ProfileQuantities.xsd, WallQuantities.xsd, RailingQuantities.xsd etc to get the standard DG output. 
 If you are creating a custom catalog for say profile, you need to add ProfileQuantities.xsd in order to get calculated output for your profiles. 
 Please let me know if it helps. 
 Thanks and Regards, 
 Sandeep

Custom Catalogue Items and Definitions

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