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  • Users: jimmylost
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  1. J

    How to do the point in polygon search?

    If I have an arraylist to store the points that draw in the panel, then I draw a polygon in the panel, how can I classify the points is inside or outside the polygon??
  2. J

    I cannot draw rectangle

    I drag in the panel , but no rectangle appear :o Dim MyPoint As ArrayList = New ArrayList Dim DragFlag As Boolean = False Dim StartPt, EndPt, FalseStartPt, FalseEndPt As PointF Dim myshapetype As ArrayList = New ArrayList Dim centreX As Integer = 448 / 2 Dim centreY As...
  3. J

    How to draw the points continues?

    I am not good at English, so hope you can understand my problem . :) I want to ask why I need to add If mPoints.Count > 1 in the following program,?If I del this command,the program cannot be run. And How can I draw the ellipse by more than one ? Now , I can only draw one ellipse and then stop...
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