Control your design’s assumptions with property values
Without properties, the geometry in Giraffe is just shapes. Properties add data about the objects that can be leveraged in Urban Calculations and Analytics.
https://www.youtube.com/watch?v=48QmvN76mb0&list=PLEIfkReP8drWzH1L9l6uxCm521CZoA1Br&index=4
<aside> 🎓 What is a property? From dictionary.com: an essential or distinctive attribute or quality of a thing From Wikipedia: a property is a characteristic of an object; a red object is said to have the property of redness.
Other words for Property:
Properties in Giraffe allow you to tell your project story. Use properties to control everything from giving all the residential buildings the same buildCost to making all annotations blue. Giraffe comes pre-loading with many properties (see the full List of Included Feature Properties) or you can create your own.
<aside> 🚨 Other properties may be required by various apps in order for them to run properly, but this page only describes the properties relevant to Giraffe.
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Properties can apply at both the Usages and Features level.
Usages enable you to compile a database of standards and assumptions, composed of Properties. This allows your team to apply the same data to multiple geometries within a project - from giving all the residential buildings the same hard cost to making all arrows red.
Giraffe comes with some default usages such as Residential , Road, Carpark and Annotation , and you can create your own and copy them between projects.
Each shape in Giraffe are GeoJSON features with a geometry and various Properties . Giraffe allows any property to be added to these shapes by users or apps.
Certain properties are used by Giraffe to render the shape on the map, and to perform the calculations required for Urban Calculations , so it is important that users are aware of these.
The Usage properties, in The Usages Editor
The Feature properties, in Properties Palette
Applying a Usage assigns that Usage’s property values automatically.
If a geometry feature has a property that exists in the feature’s Usages, the section will inherit properties from the Usage it references.
If the property is over-ridden in the feature, the feature-level property has priority. That is, feature properties override the Usage’s properties at the instance level.
Controls multiple features.
Edit in the Usages Editor
Use to control many objects
Controls a single selected feature
Edit in Properties Palette
Use to override Usages in a one-off fashion