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AutoCAD 2023 开发者帮助

ShowRotation 属性（ActiveX）

2024-5-18 18:57| 发布者: admin| 查看: 85| 评论: 0|原作者: admin|来自: AutoCAD

确定地理地图图像、栅格图像或擦拭是否在其旋转值处显示。

支持的平台：仅限 Windows

签名

VBA：

object.ShowRotation

对象

类型：GeomapImage、RasterImage、Wipeout

此属性应用于的对象。

属性值

只读：不

类型：布尔

True：在 Rotation 属性中存储的旋转值处显示光栅图像。
False：不以 Rotation 属性中存储的旋转值显示光栅图像。

言论

没有其他评论。

例子

VBA：

Sub Example_ShowRotation()
    ' This example adds a raster image in model space and rotates the image.
    ' One rotation is done without angle limits, one is done with ShowRotation,
    ' which limits rotations to 90 degrees
    
    ' This example uses the "downtown.jpg" found in the sample
    ' directory. If you do not have this image, or it is located
    ' in a different directory, insert a valid path and file name
    ' for the imageName variable below.
    
    Dim insertionPoint(0 To 2) As Double
    Dim scalefactor As Double, rotationAngle As Double
    Dim imageName As String
    Dim rasterObj As AcadRasterImage
    
    imageName = "c:\Autocad\sample\downtown.jpg"
    
    ' Define Raster object
    insertionPoint(0) = 5: insertionPoint(1) = 5: insertionPoint(2) = 0
    scalefactor = 1#: rotationAngle = 0
    
    On Error GoTo ERRORTRAP
    
    ' Loads a raster image into model space
    Set rasterObj = ThisDrawing.ModelSpace.AddRaster(imageName, insertionPoint, scalefactor, rotationAngle)
        
    ' Limit the raster image rotations to 90 degrees
    rasterObj.ShowRotation = True
    
    ' Rotate the raster image 180 degrees
    rasterObj.Rotate insertionPoint, 180
    ThisDrawing.Application.ZoomAll
    
    Exit Sub
    
    ' If you get an error (most likely a problem with the file path),
    ' then display an error message
ERRORTRAP:
    If Err.Description <> "" Then
        MsgBox Err.Description
    End If
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_ShowRotation()
    ;; This example adds a raster image in model space and rotates the image.
    ;; One rotation is done without angle limits, one is done with ShowRotation,
    ;; which limits rotations to 90 degrees
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; This example uses the "2d Projected Polylines.jpg" found in the sample
    ;; directory. If you do not have this image, or it is located
    ;; in a different directory, insert a valid path and file name
    ;; for the imageName variable below.
    
    ;; Define Raster object
    (setq insertionPoint (vlax-3d-point 5 5 0)
          imageName ".\\Sample\\VBA\\2d Projected Polylines.jpg"
          scalefactor 1
          rotationAngle 0)
    
    ;; Loads a raster image into model space
    (if (/= (findfile imageName) nil)
        (progn
            (setq modelSpace (vla-get-ModelSpace doc))
            (setq rasterObj (vla-AddRaster modelSpace (findfile imageName) insertionPoint scalefactor rotationAngle))
        
            ;; Limit the raster image rotations to 90 degrees
            (vla-put-ShowRotation rasterObj :vlax-true)
    
            ;; Rotate the raster image 180 degrees
            (vla-Rotate rasterObj insertionPoint 180)
            (vla-ZoomExtents acadObj)
        )
        (alert (strcat imageName " could not be found."))
    )
)