イメージの現在の明るさの値を指定します。
サポートされているプラットフォーム: Windows のみ
読み込み専用: いいえ
タイプ: 整数型
0~100。初期値は 50 です。
元のラスター イメージ ファイルに影響を与えることなく、画面上のイメージや印刷イメージの明るさ、コントラスト、フェードを調整することができます。イメージを暗くしたり明るくするには、明るさを調整します。コントラストを調整すると、低品質のイメージも読みやすくなります。フェードを調整すると、イメージ上のベクトルが見やすくなり、印刷結果にすかしを入れることができます。
モノクロ イメージの場合、明るさ、コントラスト、フェードの調整はできません。
VBA:
Sub Example_Brightness() ' This example inserts a raster image and finds the current ' brightness of the image. It then changes the brightness ' of the image. ' This example uses the "2d Projected Polylines.jpg." found in the Sample ' directory. If you do not have this image, or if 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 Dim rotAngleInDegree As Double, rotAngle As Double Dim imageName As String Dim raster As AcadRasterImage imageName = "C:/AutoCAD/sample/2d Projected Polylines.jpg" insertionPoint(0) = 2#: insertionPoint(1) = 2#: insertionPoint(2) = 0# scalefactor = 1# rotAngleInDegree = 0# rotAngle = rotAngleInDegree * 3.141592 / 180# On Error Resume Next ' Creates a raster image in model space Set raster = ThisDrawing.ModelSpace.AddRaster(imageName, insertionPoint, scalefactor, rotAngle) If Err.Description = "File error" Then MsgBox imageName & " could not be found." Exit Sub End If ' Find the current brightness ThisDrawing.Regen True MsgBox "The brightness is currently set to: " & raster.Brightness, vbInformation ' Change the brightness to 5 raster.Brightness = 5 ThisDrawing.Regen True MsgBox "The brightness is now set to: " & raster.Brightness, vbInformation End Sub
Visual LISP:
(vl-load-com) (defun c:Example_Brightness() ;; This example inserts a raster image and finds the current ;; brightness of the image. It then changes the brightness ;; of the image. (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 if it is located ;; in a different directory, insert a valid path and file name ;; for the imageName variable below. (setq insertionPoint (vlax-3d-point 2 2 0) imageName ".\\Sample\\VBA\\2d Projected Polylines.jpg" scalefactor 1 rotAngleInDegree 0 rotAngle (/ (* rotAngleInDegree 3.141592) 180)) (if (/= (findfile ".\\Sample\\VBA\\2d Projected Polylines.jpg") nil) (progn ;; Creates a raster image in model space (setq modelSpace (vla-get-ModelSpace doc)) (setq raster (vla-AddRaster modelSpace (findfile ".\\Sample\\VBA\\2d Projected Polylines.jpg") insertionPoint scalefactor rotAngle)) (vla-ZoomExtents acadObj) ;; Find the current brightness (vla-Regen doc :vlax-true) (alert (strcat "The brightness is currently set to: " (rtos (vla-get-Brightness raster) 2))) ;; Change the brightness to 5 (vla-put-Brightness raster 5) (vla-Regen doc :vlax-true) (alert (strcat "The brightness is now set to: " (rtos (vla-get-Brightness raster) 2))) ) (alert (strcat imageName " could not be found.")) ) )