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Engine でスケッチに対してスナップを設定する方法

2016/9/1 (木)

' http://help.arcgis.com/en/sdk/10.0/arcobjects_net/componenthelp/index.html#/SnapEditorForm/0048000000m7000000/
 
'/ <summary>
'/ Turns on or turns off the Edit Sketch snap agents by adding or removing them
'/ </summary>
Private Sub AddSketchSnapAgents()
  'give anchor snap (i.e. vertex snap) priority to get more accurate snap tips while snapped to a vertex
  Dim t As Type = Type.GetTypeFromProgID("esriControls.EngineAnchorSnap")
  Dim obj As System.Object = Activator.CreateInstance(t)
  Dim snapAgent As IEngineSnapAgent = DirectCast(obj, IEngineSnapAgent)
  snapEnvironment.AddSnapAgent(snapAgent)
 
  'edge sketch edges
  t = Type.GetTypeFromProgID("esriControls.EngineSketchSnap")
  obj = Activator.CreateInstance(t)
  snapAgent = DirectCast(obj, IEngineSnapAgent)
  snapEnvironment.AddSnapAgent(snapAgent)
 
  'perpendicular to edit sketch
  t = Type.GetTypeFromProgID("esriControls.EnginePerpendicularSnap")
  obj = Activator.CreateInstance(t)
  snapAgent = DirectCast(obj, IEngineSnapAgent)
  snapEnvironment.AddSnapAgent(snapAgent)
End Sub
 
 
/// <summary>
/// Adds, and hence turns on, Edit Sketch snap agents
/// </summary>
private void AddSketchSnapAgents()
{
  //give anchor snap (i.e. vertex snap) priority to get more accurate snap tips while snapped to a vertex
  Type t = Type.GetTypeFromProgID("esriControls.EngineAnchorSnap");
  System.Object obj = Activator.CreateInstance(t);
  IEngineSnapAgent snapAgent = (IEngineSnapAgent)obj;
  snapEnvironment.AddSnapAgent(snapAgent);
 
  //edge sketch edges
  t = Type.GetTypeFromProgID("esriControls.EngineSketchSnap");
  obj = Activator.CreateInstance(t);
  snapAgent = (IEngineSnapAgent)obj;
  snapEnvironment.AddSnapAgent(snapAgent);
 
  //perpendicular to edit sketch
  t = Type.GetTypeFromProgID("esriControls.EnginePerpendicularSnap");
  obj = Activator.CreateInstance(t);
  snapAgent = (IEngineSnapAgent)obj;
  snapEnvironment.AddSnapAgent(snapAgent);
}

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羽田 康祐

Esri認定インストラクター、GIS上級技術者、測量士補、潜水士。GISy / GISc とその関連分野である地理学・地図学について日々の出来事で学んだ記憶を記録するためにブログを書いています。行動原理は伊達と酔狂。好きな地形は圏谷。好きな地図投影法はパースクインカンシャル図法。呉市生まれ広島市出身。GIS を使った自己紹介はこちら

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