対話形式でオブジェクトを取得します。
サポートされているプラットフォーム: Windows のみ
VBA:
object.GetEntity Object, PickedPoint [, Prompt]
戻り値はありません。
このメソッドは、グラフィックス画面上の点をクリックすることで、AutoCAD ユーザにオブジェクトの選択を要求します。図形がクリックされた場合、その図形は最初のパラメータに戻され、2 番目のパラメータには WCS 座標内のクリックした点を含んでいます。図形にクリックする点がない場合、呼び出しは失敗します。
クリックしたときに GetEntity により返される点が、選択したオブジェクトに含まれていなくても問題ありません。返される点は、選択時のクロスヘアの位置を表します。この点とオブジェクトの関係は、ピックボックスのサイズと現在のズーム倍率により異なります。
このメソッドは、たとえ画面が見えない場合やフリーズされている画層の場合でも図形を検索することができます。
VBA:
Sub Example_GetEntity() ' This example creates several objects in model space. It then ' prompts the user to select an object. The example continues to ' have the user select objects until the user selects in empty space. AppActivate ThisDrawing.Application.Caption ' Create a Ray object in model space Dim rayObj As AcadRay Dim basePoint(0 To 2) As Double Dim SecondPoint(0 To 2) As Double basePoint(0) = 3#: basePoint(1) = 3#: basePoint(2) = 0# SecondPoint(0) = 1#: SecondPoint(1) = 3#: SecondPoint(2) = 0# Set rayObj = ThisDrawing.ModelSpace.AddRay(basePoint, SecondPoint) ' Create a polyline object in model space Dim plineObj As AcadLWPolyline Dim points(0 To 5) As Double points(0) = 3: points(1) = 7 points(2) = 9: points(3) = 2 points(4) = 3: points(5) = 5 Set plineObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(points) plineObj.Closed = True ' Create a line object in model space Dim lineObj As AcadLine Dim startPoint(0 To 2) As Double Dim endPoint(0 To 2) As Double startPoint(0) = 0: startPoint(1) = 0: startPoint(2) = 0 endPoint(0) = 2: endPoint(1) = 2: endPoint(2) = 0 Set lineObj = ThisDrawing.ModelSpace.AddLine(startPoint, endPoint) ' Create a circle object in model space Dim circObj As AcadCircle Dim centerPt(0 To 2) As Double Dim radius As Double centerPt(0) = 20: centerPt(1) = 30: centerPt(2) = 0 radius = 3 Set circObj = ThisDrawing.ModelSpace.AddCircle(centerPt, radius) ' Create an ellipse object in model space Dim ellObj As AcadEllipse Dim majAxis(0 To 2) As Double Dim center(0 To 2) As Double Dim radRatio As Double center(0) = 5#: center(1) = 5#: center(2) = 0# majAxis(0) = 10: majAxis(1) = 20#: majAxis(2) = 0# radRatio = 0.3 Set ellObj = ThisDrawing.ModelSpace.AddEllipse(center, majAxis, radRatio) ZoomAll ' Begin the selection Dim returnObj As AcadObject Dim basePnt As Variant On Error Resume Next ' The following example waits for a selection from the user RETRY: ThisDrawing.Utility.GetEntity returnObj, basePnt, "Select an object" If Err <> 0 Then Err.Clear MsgBox "Program ended.", , "GetEntity Example" Exit Sub Else returnObj.Update MsgBox "The object type is: " & returnObj.EntityName, , "GetEntity Example" returnObj.Update End If GoTo RETRY End Sub
Visual LISP:
(vl-load-com) (defun c:Example_GetEntity() ;; This example creates several objects in model space. It then ;; prompts the user to select an object. The example continues to ;; have the user select objects until the user selects in empty space. (setq acadObj (vlax-get-acad-object)) (setq doc (vla-get-ActiveDocument acadObj)) (setq modelSpace (vla-get-ModelSpace doc)) ;; Create a Ray object in model space (setq basePoint (vlax-3d-point 3 3 0) secondPoint (vlax-3d-point 1 3 0)) (setq rayObj (vla-AddRay modelSpace basePoint SecondPoint)) ;; Create a polyline object in model space (setq points (vlax-make-safearray vlax-vbDouble '(0 . 5))) (vlax-safearray-fill points '(3 7 9 2 3 5 ) ) (setq plineObj (vla-AddLightWeightPolyline modelSpace points)) (vla-put-Closed plineObj :vlax-true) ;; Create a line object in model space (setq startPoint (vlax-3d-point 0 0 0) endPoint (vlax-3d-point 2 2 0)) (setq lineObj (vla-AddLine modelSpace startPoint endPoint)) ;; Create a circle object in model space (setq centerPt (vlax-3d-point 20 30 0) radius 3) (setq circObj (vla-AddCircle modelSpace centerPt radius)) ;; Create an ellipse object in model space (setq center (vlax-3d-point 5 5 0) majAxis (vlax-3d-point 10 20 0) radRatio 0.3) (setq ellObj (vla-AddEllipse modelSpace center majAxis radRatio)) (vla-ZoomAll acadObj) ;; Begin the selection ;; The following example waits for a selection from the user (while (= (setq err (vl-catch-all-apply 'vla-GetEntity (list (vla-get-Utility doc) 'returnObj 'basePnt "Select an object"))) nil) (vla-Update returnObj) (alert (strcat "The object type is: " (vla-get-ObjectName returnObj))) (vla-Update returnObj) ) (alert "Program ended.") )