Shape editors

[pdavidc]

Support for user-shape-editing (3D shapes, surface shapes and airspace shapes). From the COE requirements document:

Feature Editing

• Ability for the developer to place an existing map feature into an editable state.
• Interactive UI controls which allow the user to use touch or cursor input to manipulate the locations of the vertices that make up the feature.
• In the case of complex / composite features such as Air Control Measures the map shall also provide interactive handles to manipulate additional properties outside of the vertices such as altitude, width, and depth.
• As the feature is manipulated incremental Feature Edit events are dispatched indicating the current state of the feature
• Map engine allows developer to stop editing feature with an API command to complete the edit

Auto Shape Drawing Auto shapes are features that have a derived visualization from geospatial coordinates and additional properties such as:

• Arc – point with radius, start angle, end angle.
• Circle – point with radius
• Ellipse – point with major radius, minor radius, and rotation
• Square – point with width and rotation
• Rectangle – Point with width, height, and rotation
• 3D Airspace Volumes – Coordinates, and modifier properties

For an auto shape draw start, a feature that centers in the current display and is approximately 25% of the width and height of the display is created and automatically displayed in an editable state. The process for drawing and editing auto shapes is basically the same