Class AcApContext

Application context that binds a CAD document with its associated view.

This class establishes the connection between a CAD document (containing the drawing database) and its visual representation (the view). It handles event forwarding between the document and view to keep them synchronized.

The context manages:

  • Entity lifecycle events (add, modify, remove)
  • Layer visibility changes
  • System variable changes (like point display mode)
  • Entity selection and highlighting

Example

const document = new AcApDocument();
const view = new AcTrView2d();
const context = new AcApContext(view, document);

// The context will automatically sync changes between document and view
// For example, when entities are added to the document, they appear in the view

Constructors

constructor

Accessors

doc view

Constructors

constructor

  • new AcApContext(view: AcEdBaseView, doc: AcApDocument): AcApContext

    Creates a new application context that binds a document with its view.

    The constructor sets up event listeners to synchronize the document and view:

    • Entity additions/modifications are reflected in the view
    • Layer visibility changes update the view
    • System variable changes (like point display mode) update rendering
    • Entity selections show/hide grip points

    Parameters

    Returns AcApContext

Accessors

doc

view

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