Object properties. (Lab 5) презентация

Lab 5 – Properties Lab 5 – Properties

Agenda Object Properties Find Properties

Object Properties

.NET API ModelItem.PropertyCategories PropertyCategoryCollection PropertyCategory PropertyCategory.Properties DataPropertyCollection DataProperty Current .NET API cannot modify/add custom properties. Need COM API

Properties Name Meaningful name Independent of languages Pre-define strings, easy to use Internal name Independent of languages Named from the class definition of API Display name What the end users can see in Localization

NamedConstant & VariantData NamedConstant Identifier for a value combining the internal constant's name and a localized display name equivalent VariantData A value type that can store data of one of several different types DataProperty.Value Check type before print out the value

Iterate Properties Demo

Get Property by Method PropertyCategoryCollection Various methods to get property category and property, e.g. FindCategoryByDisplayName find property category by display name only FindCategoryByName find property category by internal name only FindPropertyByDisplayName find property by display name only FindPropertyByName find property by internal name only

Demo: Get Categories by Display Name

Demo: Get Categories by Methods

Demo: Get Properties by Methods

Add Custom Properties See Lab 09 [COM Interop]

Unique Identifier of Object ModelItem.InstanceGuid Same to Item>>Guid in UI Available for some file formats only (Revit, AutoCAD) Properties from source CAD file Some format provides a kind of ID that could be an identifier such as AutoCAD Handle, Guid of Microstation. Revit file Recommend with Elements Properties>>UniqueId.

Exercise Create a plugin Check the language of Navisworks. Use the display name of local language to find some properties