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> ■No80411 (国方賢治 さん) に返信
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>国方賢治の返事
指摘のとうりに次のように、コードを変えました
Imports System.Drawing
Public Class Pyramid
Inherits System.Web.UI.Page
Dim img As New Bitmap(500, 500)
Dim g As Graphics = Graphics.FromImage(img)
Const XMAX = 399, YMAX = 399
Const HABA = 60, MITUDO = 25, RITTAIDO = 2
Dim TAKASA(0 To XMAX), DOT(0 To XMAX) As String
Dim pathtofile = Server.MapPath("~/images/pyramid3.png")
Private pyramid3 As Object
Protected Sub Page_Load(sender As Object, e As EventArgs) Handles Me.Load
OBJECTBYOGA()
For Y = 0 To YMAX
' Erase DOT
For i = 0 To XMAX
DOT(i) = ""
Next
TAKASALOAD(Y)
For X = 0 To XMAX
Dim TAKASA1 As Integer = TAKASA(X) * RITTAIDO
If DOT(X) = "" Then
If Rnd() * 100 < MITUDO Then
DOT(X) = "7"
Else
DOT(X) = "0"
End If
End If
img.SetPixel(X, Y, System.Drawing.ColorTranslator.FromOle(QBColor(Val(DOT(X)))))
Dim TUGI As Integer = X + HABA - (TAKASA1 * RITTAIDO)
If TUGI >= 0 And TUGI <= XMAX Then
DOT(TUGI) = DOT(X)
End If
Next
Next
' Response.ContentType = "image/png"
' Response.Flush()
' img.Save(Response.OutputStream, Imaging.ImageFormat.Png)
' img.Save(Server.MapPath("/pyramid3.png"), Imaging.ImageFormat.Png)
' img.Save(pathtofile, Imaging.ImageFormat.Png)
' Response.WriteFile("/pyramid3.png")
' Response.WriteFile(pathtofile)
' Image1.ImageUrl = pathtofile
' Label1.Text = pathtofile
' Response.End()
img.Save(pathtofile, Imaging.ImageFormat.Png)
Image1.ImageUrl = "~/images/pyramid3.png"
Label1.Text = pathtofile
End Sub
Private Function QBCN(ByVal IRO As String) As Integer
If IRO = "FF000000" Then
QBCN = 0
ElseIf IRO = "ff000080" Then
QBCN = 1
ElseIf IRO = "ff008000" Then
QBCN = 2
ElseIf IRO = "ff008080" Then
QBCN = 3
ElseIf IRO = "ff800000" Then
QBCN = 4
ElseIf IRO = "ff800080" Then
QBCN = 5
ElseIf IRO = "ff808000" Then
QBCN = 6
ElseIf IRO = "ffc0c0c0" Then
QBCN = 7
ElseIf IRO = "ff808080" Then
QBCN = 8
ElseIf IRO = "ff0000ff" Then
QBCN = 9
ElseIf IRO = "ff00ff00" Then
QBCN = 10
ElseIf IRO = "ff00ffff" Then
QBCN = 11
ElseIf IRO = "ffff0000" Then
QBCN = 12
ElseIf IRO = "ffff00ff" Then
QBCN = 13
ElseIf IRO = "ffffff00" Then
QBCN = 14
ElseIf IRO = "ffffffff" Then
QBCN = 15
End If
Return QBCN
End Function
Sub TAKASALOAD(ByVal Y)
For X = 0 To XMAX
Dim col1 As New Color
col1 = img.GetPixel(X, Y)
TAKASA(X) = QBCN(col1.Name)
Next
End Sub
Private Sub OBJECTBYOGA()
Dim col1 As New Color
Dim i As Integer
Dim j As Integer = 1
For i = 1 To 7
col1 = System.Drawing.ColorTranslator.FromOle(QBColor(i))
Dim b As New Drawing2D.LinearGradientBrush(New Point(0 + 25 * (i - j), 0 + 25 * (i - j)), New Point(400 - 25 * (i - j), 400 - 25 * (i - j)), col1, col1)
g.FillRectangle(b, 0 + 25 * (i - j), 0 + 25 * (i - j), 400 - 50 * (i - j), 400 - 50 * (i - j))
Next
End Sub
デバッグしたところ、
img.Save(.........)
でエラーが発生しました。
型 'System.Runtime.InteropServices.ExternalException' の例外が Microsoft.VisualBasic.dll で発生しましたが、ユーザー コード内ではハンドル されませんでした
追加情報:GDI+ で汎用エラーが発生しました。
残念です。
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