AddPathCurve : insert point
Posted: Tue Mar 29, 2016 10:20 am
Hi
Do you know if there is a way to insert point in a shape made with AddPathCurve() ?
If this exemple, I would like to insert a point between 0 and 3 or 3 and 6 for exemple (at mouseX, mouseY).
Do you know how I can do that ?
Thanks a lot
.
Do you know if there is a way to insert point in a shape made with AddPathCurve() ?
Code: Select all
#G_canvasVector=0
Global Dim pt.Point(8)
; add some point to begin
t$ = "134/212/117/283/252/350/310/324/348/309/300/199/351/219/351/140/133/139/"
For i= 0 To ArraySize(pt())
pt(i)\x = Val(StringField(t$,i*2+1,"/"))
pt(i)\y = Val(StringField(t$,i*2+2,"/"))
Next
LoadFont(0, "arial", 20)
Procedure Drawcanvas(x=-100,y=-100,ok=0,insert=0)
If StartVectorDrawing(CanvasVectorOutput(0))
; gray background
AddPathBox(0,0, GadgetWidth(0),GadgetHeight(0))
VectorSourceColor(RGBA(200,200,200,255))
FillPath()
; draw points
For i =0 To ArraySize(pt())
MovePathCursor(pt(i)\x,pt(i)\y)
VectorFont(FontID(0), 25)
VectorSourceColor(RGBA(0, 0, 0, 80))
DrawVectorText(Str(i))
Next
MovePathCursor(pt(0)\x,pt(0)\y)
For i =0 To ArraySize(pt())
;AddPathLine(pt(i)\x, pt(i)\y)
If Mod(i,3)=0
AddPathBox(pt(i)\x-5,pt(i)\y-5,10,10)
VectorSourceColor(RGBA(255,0,0,100))
FillPath()
Else
If Mod(i,3)=1
u = i-1
If u<0
u = ArraySize(pt())
EndIf
MovePathCursor(pt(i)\x,pt(i)\y)
AddPathLine(pt(i)\x, pt(i)\y)
AddPathLine(pt(u)\x, pt(u)\y)
VectorSourceColor(RGBA(0,0,0,100))
StrokePath(1)
Else
u = i+1
If u>ArraySize(pt())
u = 0
EndIf
MovePathCursor(pt(i)\x,pt(i)\y)
AddPathLine(pt(i)\x, pt(i)\y)
AddPathLine(pt(u)\x, pt(u)\y)
VectorSourceColor(RGBA(0,0,0,100))
StrokePath(1)
EndIf
AddPathCircle(pt(i)\x,pt(i)\y,5)
VectorSourceColor(RGBA(255,255,0,100))
FillPath()
EndIf
Next
; Draw the shape
MovePathCursor(pt(0)\x,pt(0)\y)
For i =0 To ArraySize(pt()) Step 3
u = 1+i
If u > ArraySize(pt())
u =0
EndIf
v = u+1
If v > ArraySize(pt())
v =0
EndIf
w = v+1
If w > ArraySize(pt())
w=0
EndIf
;AddPathLine(pt(u)\x, pt(u)\y)
;AddPathLine(pt(v)\x, pt(v)\y)
AddPathCurve(pt(u)\x, pt(u)\y,pt(v)\x,pt(v)\y,pt(w)\x,pt(w)\y)
Next
VectorSourceColor(RGBA(0,0,0,120))
FillPath()
StopVectorDrawing()
EndIf
EndProcedure
w=800
h=600
OpenWindow(0,0,0,w,h,"insert point",#PB_Window_ScreenCentered|#PB_Window_SizeGadget|#PB_Window_SystemMenu)
CanvasGadget(0,0,0,w,h)
Drawcanvas()
Repeat
event =WaitWindowEvent()
If event = #PB_Event_Gadget
If EventGadget() = 0
If EventType() = #PB_EventType_LeftButtonDown Or
(EventType() = #PB_EventType_MouseMove And
GetGadgetAttribute(#G_canvasVector, #PB_Canvas_Buttons) & #PB_Canvas_LeftButton)
If StartVectorDrawing(CanvasVectorOutput(#G_canvasVector))
x = GetGadgetAttribute(#G_canvasVector, #PB_Canvas_MouseX)
y = GetGadgetAttribute(#G_canvasVector, #PB_Canvas_MouseY)
If EventType() = #PB_EventType_LeftButtonDown
move = 0
For i= 0 To ArraySize(pt())
If x >= pt(i)\x-5 And x<=pt(i)\x-5+10 And y>=pt(i)\y-5 And y<=pt(i)\y-5+10
k1 = i
move = 1
Break
EndIf
Next
EndIf
StopVectorDrawing()
Drawcanvas(x,y,1)
If move = 1
pt(k1)\x = x
pt(k1)\y = y
Debug "point "+i+" : "+x+"/"+y
Else
; we don't move, but we have made a cli : add the point here !
If clic = 0
clic = 1
; InsertPt(k,x,y)
EndIf
EndIf
EndIf
ElseIf EventType() = #PB_EventType_MouseMove
If StartVectorDrawing(CanvasVectorOutput(#G_canvasVector))
x = GetGadgetAttribute(#G_canvasVector, #PB_Canvas_MouseX)
y = GetGadgetAttribute(#G_canvasVector, #PB_Canvas_MouseY)
StopVectorDrawing()
Drawcanvas(x,y,move)
EndIf
ElseIf EventType() = #PB_EventType_LeftButtonUp
Drawcanvas()
move = 0
clic = 0
EndIf
EndIf
EndIf
Until event = #PB_Event_CloseWindow
Do you know how I can do that ?
Thanks a lot
.