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.")
)