Informática Educativa Carlosfmur@gmail.com

Escrito por carlosfmur1948 en Small Basic y etiquetada con gráficos, matemática, programación, small basic 28 de abril de 2013

The Official Blog of Small Basic http://blogs.msdn.com/b/smallbasic/ Ed Price – MSFT NaochanON created this program that generates these triangles:
Program Listing: RBB339

‘ Fractale viewdata()              ’Input numbers&marks for controls
init_View()
Controls.ButtonClicked = OnButtonClicked
Sub Show_Fractal
‘ Base
Base_Triangle()
for k=Real_No[4] To 1 Step -1
GraphicsWindow.PenWidth=1
GraphicsWindow.PenColor=”white”
GraphicsWindow.BrushColor= GraphicsWindow.GetRandomColor() ’ “white”
PowerK=Math.Power(0.5,k)
For i=1 To  (Math.Power(2,k)-1)  Step 2          ’ Y direction
For j=1 To (Math.Power(2,k)-1-(i-1))   Step 2        ’ X direction
BaseY[i][j]=ACY*PowerK +(i-1)*ACY*Powerk
BaseX[i][j]=ACX*PowerK +(j-1)*ABX*PowerK +(i-1)*ACX*powerk
gas[i][j]=Shapes.AddTriangle(0,0,PowerK*Lc,0,PowerK*(Lc-MCX),PowerK*YH)
Shapes.Animate(gas[i][J],SX+BaseX[i][j],SY+AY-BaseY[i][j],1000/k)
EndFor
EndFor
EndFor
EndSub
Sub Base_Triangle
La=Real_No[1]    ’ Length a
Lb=Real_No[2]    ’ Length b
Lc=Real_No[3]    ’ Length c
MCX=(La*La+Lc*Lc-Lb*Lb)/2/Lc           ’ MCX
YH=math.SquareRoot(La*La-MCX*MCX)      ’ Hight
AX=0             ’ Point-A X C
AY=YH            ’ Point-A Y . . .
BX=Lc            ’ Point-B X . . YH .
BY=YH            ’ Point-B Y A . . . . . B
CX=MCX
CY=0
ABX=(AX+BX)
ABY=(AY+BY)
ACX=(AX+CX)
ACY=(AY+CY)
‘
GraphicsWindow.PenColor=”#FF0000″  ’”Red”
GraphicsWindow.BrushColor=”#FF0000″  ’”Red”
Base=Shapes.AddTriangle(AX,AY,BX,BY,CX,CY)
SX=50             ’ shift X
SY=170            ’ shift Y
Shapes.Animate(Base,SX,SY,100)
Program.Delay(500)
EndSub
Sub OnButtonClicked
GraphicsWindow.BrushColor = ”Red”
name=controls.LastClickedButton     ’Last button
nm=controls.GetButtonCaption(name)  ’ Button’s caption
Xloc=50+2*BW*(count)    ’ Angle number / length showing position
If nm=”Del” Then
Del_word()
elseIf nm=”AC” Then
Reset()
elseIf nm=”Exe” Then
Execute()
else
Make_word()
endif
EndSub
Sub Fractale
If Real_No[1]+Real_No[2] <= Real_No[3] Then
Sound.PlayBellRing()    ’ Check ( a+ b > C)
Reset()
endif
For i= 1 To 4
Shapes.Remove(T[i])   ’ initial triangle and a b c
EndFor
Show_Fractal()          ’ fractale showing
EndSub
Sub Sample_Triangle
GraphicsWindow.PenColor=”Yellow”
GraphicsWindow.BrushColor=”Yellow”
AX=0
AY=400
BX=600
BY=400
CX=450
CY=0
MX=50
MY=150
T[1]=Shapes.AddTriangle(AX,AY,BX,BY,CX,CY)
Shapes.SetOpacity(T[1],30)
Shapes.Animate(T[1],MX,MY,600)
T[2]=shapes.AddText(” a “)
Shapes.Animate(T[2],MX+CX/2-50,MY+AY/2,800)
T[3]=shapes.AddText(” b “)
Shapes.Animate(T[3],MX+10+CX+(BX-CX)/2,MY+CY+(BY-CY)/2,1000)
T[4]=shapes.AddText(” c “)
Shapes.Animate(T[4],MX+BX/2,MY+BY,1200)
EndSub
Sub   Button_Set
GraphicsWindow.BrushColor = ”Blue”
nn=0
dm=s[1]
Loop2:
end_P=Text.GetIndexOf(dm,” “)
msg=text.GetSubText(dm,1,end_P-1)  ’ word
nn=nn+1
btn[nn][1] =Controls.AddButton(msg, 10+BW*(nn-1), BH+50)
Controls.SetSize(btn[nn][1] ,BW-2,BH-2)  ’Set 13 Control buttons
If nn=WN Then
Goto end1
EndIf
dm=text.GetSubTextToEnd(dm,end_p+1)   ’gets number value or mark’s name
Goto loop2
end1:
add_num=”"
count=0
EndSub
Sub Reset
GraphicsWindow.Clear()
GraphicsWindow.Show()
init_View()
Button_Set()
EndSub
Sub init_View
WN=13   ’ 13 words
BW=70
BH=45
GW=BW*WN
GH=BH*15+20
GraphicsWindow.Hide()
GraphicsWindow.top=0
GraphicsWindow.Width = GW+2*10
GraphicsWindow.Height = GH
GraphicsWindow.Title = ”Fractale graph”
GraphicsWindow.Show()
GraphicsWindow.BackgroundColor = ”Teal”
GraphicsWindow.BrushColor = ”White”
GraphicsWindow.FillRectangle(10+BW*0, 45, BW*3/2, BH-10)
GraphicsWindow.FillRectangle(10+BW*2, 45, BW*3/2, BH-10)
GraphicsWindow.FillRectangle(10+BW*4, 45, BW*3/2, BH-10)
GraphicsWindow.FillRectangle(10+BW*6, 45, BW*3/2, BH-10)
GraphicsWindow.BrushColor =”Yellow”
GraphicsWindow.FontSize = 20
GraphicsWindow.FontName = ”Coorie new”
GraphicsWindow.FontItalic=”True”
GraphicsWindow.DrawText(15,5,”Input a b c values (300-800 may be better)”)
GraphicsWindow.DrawText(10+BW*9,5,”Note!: Must be ( a + b > c ) “)
GraphicsWindow.DrawText(10+BW*6,23,”Steps: Under 7 “)
GraphicsWindow.DrawText(10+BW*9,40,”AC=All Clear”)
GraphicsWindow.DrawText(10+BW*9,60,”Exe=Enter Value or Run”)
Button_Set()
GraphicsWindow.FontSize = 23
GraphicsWindow.DrawText(20,45,”a: “)
GraphicsWindow.DrawText(20+BW*2,45,”b: “)
GraphicsWindow.DrawText(20+BW*4,45,”c: “)
GraphicsWindow.DrawText(20+BW*6,45,”S: “)
Sample_Triangle()   ’ show sample triangle
EndSub
Sub data  ’ 13 words
s[1]=”1 2 3 4 5 6 7 8 9 0 Del AC Exe “
EndSub
Sub Del_word
Shapes.Remove(numbers[count])
add_num=Text.GetSubText(add_num,1,Text.GetLength(add_num)-1)
numbers[count] = Shapes.AddText(add_num)   ’ 1 word delete
Shapes.Move(numbers[count] , Xloc, 45)
EndSub
Sub Execute
count=count+1
Real_No[count]=add_num
add_num=”"
If count=4 then
Fractale()
endif
EndSub
Sub Make_word
Shapes.Remove(numbers[count])
add_num=text.Append(add_num,nm) ’ Add 1 word
numbers[count] = Shapes.AddText(add_num)
Shapes.Move(numbers[count], Xloc, 45)
EndSub
//