Help with FillPolygon

B

Benh

Member
Licensed User
Could some kind person please tell me where I am going wrong with this code?

Many Thanks, Ben

PHP: 
Sub Globals
   'Declare the global variables here.
Dim Points(3,2) As Int32
End Sub

Sub App_Start
   Form1.Show
End Sub

Sub Button1_Click
   drwPoly.New1("Form1","True")
     myBrush.New1(cRed)
     Points() = Array((50,50),(100,100),(150,150))
     drwPoly.FillPolygon(myBrush.Value,Points())
End Sub
 
klaus

klaus

Expert
Licensed User
Longtime User
This code works:
B4X: 
[FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]Sub [/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]Globals[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000][FONT=Courier New][SIZE=2][COLOR=#008000]'Declare the global variables here.[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]  Dim[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] Points([/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]3[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2],[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]2[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]) [/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]As[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2] Int32[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]End Sub[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]
[FONT=Courier New][/FONT] 
[FONT=Courier New][SIZE=2][COLOR=#0000ff]
[SIZE=2][FONT=Courier New][COLOR=#0000ff][SIZE=2][FONT=Courier New][COLOR=#0000ff]Sub [/COLOR][/FONT][/SIZE][/COLOR][/FONT][/SIZE][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]App_Start[/SIZE][/FONT]
[SIZE=2][FONT=Courier New][COLOR=red]  Form1.ForeLayer=[/COLOR][/FONT][/SIZE][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=red]True[/COLOR][/SIZE][/FONT]
[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]  Form1.Show[/SIZE][/FONT]
[/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff][FONT=Courier New][SIZE=2][COLOR=#0000ff]End Sub[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT]
[FONT=Courier New][/FONT] 
[FONT=Courier New][SIZE=2][COLOR=#0000ff]
[SIZE=2][FONT=Courier New][COLOR=#0000ff][SIZE=2][FONT=Courier New][COLOR=#0000ff]Sub [/COLOR][/FONT][/SIZE][/COLOR][/FONT][/SIZE][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]Button1_Click [/SIZE][/FONT]
[SIZE=2][FONT=Courier New]  drwPoly.New1([/FONT][/SIZE][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800000][FONT=Courier New][SIZE=2][COLOR=#800000][FONT=Courier New][SIZE=2][COLOR=#800000]"Form1"[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2],[/SIZE][/FONT][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]True[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][FONT=Courier New][SIZE=2][FONT=Courier New][SIZE=2]) [/SIZE][/FONT]
[SIZE=2][FONT=Courier New]  myBrush.New1([/FONT][/SIZE][/SIZE][/FONT][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080][FONT=Courier New][SIZE=2][COLOR=#800080]cRed[/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][/COLOR][/SIZE][/FONT][SIZE=2][FONT=Courier New][SIZE=2]) [/SIZE][/FONT]
[SIZE=2][FONT=Courier New][COLOR=red]  Points() = [/COLOR][/FONT][/SIZE][/SIZE][COLOR=red][FONT=Courier New][SIZE=2][SIZE=2][SIZE=2]Array[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2](([/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]50[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2],[/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]50[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2]),([/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]100[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2],[/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]50[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2]),([/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]150[/SIZE][/SIZE][/SIZE][SIZE=2][SIZE=2],[/SIZE][/SIZE][SIZE=2][SIZE=2][SIZE=2]150[/SIZE][/SIZE][/SIZE][/FONT][/COLOR][SIZE=2][SIZE=2][FONT=Courier New][COLOR=red]))[/COLOR] [/FONT][/SIZE]
[FONT=Courier New][SIZE=2]  drwPoly.FillPolygon(myBrush.Value,Points()) [/SIZE][/FONT]
[SIZE=2][FONT=Courier New][COLOR=red]  Form1.Refresh[/COLOR][/FONT][/SIZE]
[/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][FONT=Courier New][COLOR=#0000ff]End Sub[/COLOR][/FONT][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE]

You must:
- add Form1.ForeLayer=True because you want to draw on the forelayer
- change Points() = Array((50,50),(100,100),(150,150)) to
Points() = Array((50,50),(100,50),(150,150))
because your 3 points lay on a line wich is not considered a polygon.
- add Form1.Refresh to refresh the form

Best regards.
 
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