ClearImage COM Server
FirstLine Method
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CiTools Object : FirstLine Method

Description

Find first line

Syntax

Visual Basic
Public Function FirstLine() As CiLine

Return Type

Nothing or 0 when no more lines are available.

Example

Iterate image lines
VB Example (Visual Basic)Copy Code
Public Sub T_ShowLines(ByRef Tools As CiTools)
  Dim Line As CiLine
  With Tools
    .pLineCurvature = ciCurvVeryLow
    .pMaxLineAngle = 4.5
    .pMaxLineGap = 5
    .pMinLineLength = 100
    .pLineDirection = ciLineVertAndHorz
    Set Line = .FirstLine
    Do While Not Line Is Nothing
      With Line
        Debug.Print "  Line Angle=" & .Angle & _
         "  Thickness=" & .Thickness & _
         "  Rect=" & "(" & .Rect.left & "," & _
           .Rect.top & " - " & .Rect.right & "," & _
           .Rect.bottom & ")" & _
         "  Start (" & .Start.X & "," & .Start.Y & _
         ")  End (" & .End.X & "," & .End.Y & ")" & _
         "  Dir=" & Switch(.Direction = ciLineHorz, "Horz", _
           .Direction = ciLineVert, "Vert")
      End With
      Set Line = .NextLine
    Loop
  End With
End Sub

See Also

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