fix jitter and mouse cursor accuracy
This commit is contained in:
visionmercer
parent
5a1d279b0a
commit
e3054bdb79
3 changed files with 257 additions and 300 deletions
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@ -1,6 +1,6 @@
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$console
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_screenhide
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if command$=""then _echo"please specify image file to process":system 1
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if command$="" then _echo "🫥 please specify image file to process": system 1
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_screenshow
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type point2d
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@ -24,101 +24,110 @@ dim shared done as _byte
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dim shared mouseclicked as _byte
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dim shared mbd as _byte
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' Global polygon trace registers
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' Global polygon trace registers declared as dynamic
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redim shared contour(4999) as point2d
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dim shared totalpoints as long
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if _fileexists(command$) then file=command$
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state.orgimg=_loadimage(file,32)
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state.handle=_copyimage(state.orgimg)
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state.overlay=_newimage(_width(state.orgimg),_height(state.orgimg),32)
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state.levels=10
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state.threshold=127
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if _fileexists(command$) then file = command$
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state.orgimg = _loadimage(file, 32)
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state.handle = _copyimage(state.orgimg)
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state.overlay = _newimage(_width(state.orgimg), _height(state.orgimg), 32)
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state.levels = 10
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state.threshold = 127
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updateimage
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screen _newimage(_width(state.orgimg)+200,_height(state.orgimg)+200,32)
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screen _newimage(_width(state.orgimg) + 200, _height(state.orgimg) + 200, 32)
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do until done
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cls
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while _mouseinput:wend
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mouseclicked=not _mousebutton(1) and mbd
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mbd=_mousebutton(1)
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while _mouseinput: wend
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mouseclicked = not _mousebutton(1) and mbd
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mbd = _mousebutton(1)
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if state.change then
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updateimage
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state.change=0
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state.change = 0
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end if
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' Render quantized base image
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_putimage (0,0),state.handle
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_putimage (0, 0), state.handle
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' Render the vector transparent overlay shapes on top
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_putimage (0,0),state.overlay
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_putimage (0, 0), state.overlay
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' Process interactive trace when clicking inside image viewport
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if mouseclicked then
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dim clickx as long,clicky as long
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clickx=_mousex
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clicky=_mousey
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dim clickx as long, clicky as long
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clickx = _mousex
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clicky = _mousey
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' Verify click coordinates are safely within the source image canvas bounding box
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if clickx>=0 and clickx<_width(state.orgimg) and clicky>=0 and clicky<_height(state.orgimg) then
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if clickx >= 0 and clickx < _width(state.orgimg) and clicky >= 0 and clicky < _height(state.orgimg) then
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dim targetcolor as _unsigned long
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' Fetch look-up color index from the generated active handle
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_source state.handle
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targetcolor=point(clickx,clicky)
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_source 0 ' Restore background source monitor pointer
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targetcolor = point(clickx, clicky)
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_source 0
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' SAFEGUARD 1: Do not attempt to parse pure black background/borders
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if targetcolor<>_rgb32(0,0,0) and targetcolor<>_rgba32(0,0,0,0) then
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totalpoints=0
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tracecontour targetcolor,clickx,clicky
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' FIX 1: Clear out the old polygon completely by resetting the transparent overlay canvas
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dim prevdest as long
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prevdest = _dest
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_dest state.overlay
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cls ,_rgb32(0,0,0,0) ' Wipes the canvas clean
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_dest prevdest
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if totalpoints>=3 and totalpoints<(_width(state.orgimg)*_height(state.orgimg)) then
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redim _preserve contour(totalpoints-1) as point2d
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simplifypolygon
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' FIX 2: Reset the dynamic buffer array to its clean baseline size right here in the main module
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redim shared contour(4999) as point2d
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totalpoints = 0
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if totalpoints>=3 then
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' Build flat 1D coordinate matrix map array (X1, Y1, X2, Y2...)
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dim polypoints(0 to (totalpoints*2)-1) as long
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dim i as long
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dim clipstr as string
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' Pass the shared dynamic array directly into the tracing routine
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tracecontour contour(), targetcolor, clickx, clicky
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clipstr="fpolygon("
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for i=0 to totalpoints-1
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polypoints(i*2)=contour(i).x
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polypoints(i*2+1)=contour(i).y
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if totalpoints >= 3 and totalpoints < (_width(state.orgimg) * _height(state.orgimg)) then
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redim _preserve contour(totalpoints - 1) as point2d
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' Pass the dynamic array directly into the simplification routine
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simplifypolygon contour()
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clipstr=clipstr+ltrim$(str$(contour(i).x))+","+ltrim$(str$(contour(i).y))
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if i<totalpoints-1 then clipstr=clipstr+","
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next i
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clipstr=clipstr+")"
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if totalpoints >= 3 then
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' Build flat 1D coordinate matrix map array (X1, Y1, X2, Y2...)
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redim polypoints(0 to (totalpoints * 2) - 1) as long
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dim i as long
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dim clipstr as string
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' Send string array payload safely to system clipboard hardware
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_clipboard$=clipstr
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clipstr = "fpolygon("
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for i = 0 to totalpoints - 1
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polypoints(i * 2) = contour(i).x
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polypoints(i * 2 + 1) = contour(i).y
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' Render transparent vector overlay on overlay handler sheet
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dim olddest as long
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olddest=_dest
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_dest state.overlay
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clipstr = clipstr + ltrim$(str$(contour(i).x)) + "," + ltrim$(str$(contour(i).y))
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if i < totalpoints - 1 then clipstr = clipstr + ","
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next i
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clipstr = clipstr + ")"
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' Render with a semi-transparent green color (Alpha = 100)
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filledpolygon polypoints(),_rgba32(0,255,0,100)
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' Send string array payload safely to system clipboard hardware
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_clipboard$ = clipstr
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_dest olddest
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end if
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' Render transparent vector overlay on overlay handler sheet
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dim olddest as long
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olddest = _dest
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_dest state.overlay
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' Render with a semi-transparent green color (Alpha = 100)
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filledpolygon polypoints(), _rgba32(0, 255, 0, 100)
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_dest olddest
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end if
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end if
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end if
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mouseclicked=0
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end if
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ol=state.levels
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ot=state.threshold
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ol = state.levels
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ot = state.threshold
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interface
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if ol<>state.levels then state.change=-1
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if ot<>state.threshold then state.change=-1
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if ol <> state.levels then state.change = -1
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if ot <> state.threshold then state.change = -1
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_limit 30
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_display
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@ -127,54 +136,54 @@ system
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'$include: '../include/ui.bm'
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sub interface
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if button(10,_height-34,60,23,"exit") then done=-1
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if button(10, _height - 34, 60, 23, "exit") then done = -1
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color highlightcolor
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_printstring (10,_height(state.handle)+10),"levels"
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state.levels=slider(10,_height(state.handle)+28,100,state.levels*10)/10
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_printstring (10, _height(state.handle) + 10), "levels"
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state.levels = slider(10, _height(state.handle) + 28, 100, state.levels * 10) / 10
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color highlightcolor
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_printstring (118,_height(state.handle)+28),str$(state.levels)
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_printstring (10,_height(state.handle)+40),"threshold"
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state.threshold=slider(10,_height(state.handle)+58,100,state.threshold/255*100)/100*255
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_printstring (118, _height(state.handle) + 28), str$(state.levels)
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_printstring (10, _height(state.handle) + 40), "threshold"
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state.threshold = slider(10, _height(state.handle) + 58, 100, state.threshold / 255 * 100) / 100 * 255
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color highlightcolor
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_printstring (118,_height(state.handle)+58),str$(state.threshold)
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_printstring (118, _height(state.handle) + 58), str$(state.threshold)
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end sub
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sub updateimage
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dim odest as long
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dim osource as long
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odest=_dest
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osource=_source
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odest = _dest
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osource = _source
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_source state.orgimg
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_dest state.handle
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dim x as long,y as long,l as integer
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dim x as long, y as long, l as integer
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dim numsteps as integer
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if state.levels<2 then state.levels=2
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numsteps=state.levels-1
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if state.levels < 2 then state.levels = 2
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numsteps = state.levels - 1
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for y=0 to _height-1
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for x=0 to _width-1
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l=luma(point(x,y))
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for y = 0 to _height - 1
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for x = 0 to _width - 1
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l = luma(point(x, y))
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dim adjustedl as single
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if state.threshold=0 or state.threshold=255 then
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adjustedl=l
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elseif l<=state.threshold then
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adjustedl=(l/state.threshold)*127.5
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if state.threshold = 0 or state.threshold = 255 then
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adjustedl = l
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elseif l <= state.threshold then
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adjustedl = (l / state.threshold) * 127.5
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else
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adjustedl=127.5+((l-state.threshold)/(255-state.threshold))*127.5
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adjustedl = 127.5 + ((l - state.threshold) / (255 - state.threshold)) * 127.5
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end if
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dim currentstep as integer
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currentstep=int((adjustedl/256)*state.levels)
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currentstep = int((adjustedl / 256) * state.levels)
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if currentstep<0 then currentstep=0
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if currentstep>numsteps then currentstep=numsteps
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if currentstep < 0 then currentstep = 0
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if currentstep > numsteps then currentstep = numsteps
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l=int(currentstep*(255/numsteps))
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l = int(currentstep * (255 / numsteps))
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pset (x,y),_rgb32(l)
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pset (x, y), _rgb32(l)
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next x
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next y
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@ -183,207 +192,198 @@ sub updateimage
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end sub
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function luma (col as _unsigned long)
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luma=0.21*_red(col)+0.72*_green(col)+0.07*_blue(col)
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luma = 0.21 * _red(col) + 0.72 * _green(col) + 0.07 * _blue(col)
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end function
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' =========================================================================
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' SUBROUTINE: Solid Filled Scanning Polygon Vector Renderer
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' =========================================================================
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sub filledpolygon (points() as long,col as long)
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dim i as integer,j as integer
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dim x1 as single,y1 as single,x2 as single,y2 as single
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sub filledpolygon (points() as long, col as long)
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dim i as integer, j as integer
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dim x1 as single, y1 as single, x2 as single, y2 as single
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dim intersectx as single
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dim numpoints as integer
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numpoints=(ubound(points)+1) \ 2
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numpoints = (ubound(points) + 1) \ 2
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dim intersections(4999) as single ' SAFEGUARD 2: Larger intersection limit
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dim intersections(4999) as single
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dim numintersections as integer
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dim y as long
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for y=0 to _height-1
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numintersections=0
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for i=0 to numpoints-1
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x1=points(i*2)
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y1=points(i*2+1)
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x2=points(((i+1) mod numpoints)*2)
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y2=points(((i+1) mod numpoints)*2+1)
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for y = 0 to _height - 1
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numintersections = 0
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for i = 0 to numpoints - 1
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x1 = points(i * 2)
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y1 = points(i * 2 + 1)
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x2 = points(((i + 1) mod numpoints) * 2)
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y2 = points(((i + 1) mod numpoints) * 2 + 1)
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if ((y1>y and y2<=y) or (y2>y and y1<=y)) then
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if y2-y1<>0 then
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intersectx=x1+(y-y1)*(x2-x1)/(y2-y1)
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' SAFEGUARD 3: Array bounds protection
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if numintersections<=ubound(intersections) then
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intersections(numintersections)=intersectx
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numintersections=numintersections+1
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if ((y1 > y and y2 <= y) or (y2 > y and y1 <= y)) then
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if y2 - y1 <> 0 then
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intersectx = x1 + (y - y1) * (x2 - x1) / (y2 - y1)
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if numintersections <= ubound(intersections) then
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intersections(numintersections) = intersectx
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numintersections = numintersections + 1
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end if
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end if
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end if
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next i
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for i=0 to numintersections-1
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for j=i+1 to numintersections-1
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if intersections(i)>intersections(j) then
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swap intersections(i),intersections(j)
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for i = 0 to numintersections - 1
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for j = i + 1 to numintersections - 1
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if intersections(i) > intersections(j) then
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swap intersections(i), intersections(j)
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end if
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next j
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next i
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for i=0 to numintersections-1 step 2
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if i+1<numintersections then
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line (intersections(i),y)-(intersections(i+1),y),col
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for i = 0 to numintersections - 1 step 2
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if i + 1 < numintersections then
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line (intersections(i), y)-(intersections(i + 1), y), col
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end if
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next i
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next y
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end sub
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' =========================================================================
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' SUBROUTINE: Moore-Neighbor Contour Tracer
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' =========================================================================
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sub tracecontour (targcolor as _unsigned long,mx as long,my as long)
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dim startx as long,starty as long
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' FIX 3: Adjusted signature to cleanly receive the dynamic array as a parameter
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sub tracecontour (poly() as point2d, targcolor as _unsigned long, mx as long, my as long)
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dim startx as long, starty as long
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dim foundstart as _byte
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dim oldsource as long
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oldsource=_source
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oldsource = _source
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_source state.handle
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dim y&
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for y&=my to 0 step -1
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if point(mx,y&)<>targcolor then
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startx=mx
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starty=y&+1
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foundstart=-1
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for y& = my to 0 step -1
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if point(mx, y&) <> targcolor then
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startx = mx
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starty = y& + 1
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foundstart = -1
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exit for
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end if
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next y&
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if not foundstart then
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startx=mx:starty=my
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startx = mx: starty = my
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end if
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dim dx(0 to 7) as integer
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dim dy(0 to 7) as integer
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dx(0)=-1:dx(1)=0:dx(2)=1:dx(3)=1:dx(4)=1:dx(5)=0:dx(6)=-1:dx(7)=-1
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dy(0)=-1:dy(1)=-1:dy(2)=-1:dy(3)=0:dy(4)=1:dy(5)=1:dy(6)=1:dy(7)=0
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dx(0) = -1: dx(1) = 0: dx(2) = 1: dx(3) = 1: dx(4) = 1: dx(5) = 0: dx(6) = -1: dx(7) = -1
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dy(0) = -1: dy(1) = -1: dy(2) = -1: dy(3) = 0: dy(4) = 1: dy(5) = 1: dy(6) = 1: dy(7) = 0
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dim currentx as long,currenty as long
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dim backtrackdir as integer,checkdir as integer
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dim currentx as long, currenty as long
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dim backtrackdir as integer, checkdir as integer
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dim startbacktrackdir as integer
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currentx=startx
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currenty=starty
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totalpoints=0
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currentx = startx
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currenty = starty
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totalpoints = 0
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backtrackdir=1
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startbacktrackdir=1
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backtrackdir = 1
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startbacktrackdir = 1
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dim firststep as _byte
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firststep=-1
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firststep = -1
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' Calculate absolute ceiling area parameter to handle escape routes
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dim maxallowedpoints as long
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maxallowedpoints=_width(state.handle)*_height(state.handle)
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maxallowedpoints = _width(state.handle) * _height(state.handle)
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do
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contour(totalpoints).x=currentx
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contour(totalpoints).y=currenty
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totalpoints=totalpoints+1
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poly(totalpoints).x = currentx
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poly(totalpoints).y = currenty
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totalpoints = totalpoints + 1
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' SAFEGUARD 4: Break if loop gets stuck spinning in empty coordinates
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if totalpoints>=maxallowedpoints then
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totalpoints=0
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if totalpoints >= maxallowedpoints then
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totalpoints = 0
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exit do
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end if
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if totalpoints>=ubound(contour) then
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redim _preserve contour(ubound(contour)+1000) as point2d
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if totalpoints >= ubound(poly) then
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' Safely scales the array parameter reference across scopes
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redim _preserve poly(ubound(poly) + 1000) as point2d
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end if
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checkdir=(backtrackdir+1) mod 8
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checkdir = (backtrackdir + 1) mod 8
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dim steps as integer
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steps=0
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steps = 0
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do while steps<8
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dim nx as long,ny as long
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nx=currentx+dx(checkdir)
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ny=currenty+dy(checkdir)
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do while steps < 8
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dim nx as long, ny as long
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nx = currentx + dx(checkdir)
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ny = currenty + dy(checkdir)
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if nx>=0 and nx<_width(state.handle) and ny>=0 and ny<_height(state.handle) then
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if point(nx,ny)=targcolor then
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backtrackdir=(checkdir+4) mod 8
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currentx=nx
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currenty=ny
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if nx >= 0 and nx < _width(state.handle) and ny >= 0 and ny < _height(state.handle) then
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if point(nx, ny) = targcolor then
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backtrackdir = (checkdir + 4) mod 8
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currentx = nx
|
||||
currenty = ny
|
||||
|
||||
if firststep then
|
||||
startbacktrackdir=backtrackdir
|
||||
firststep=0
|
||||
startbacktrackdir = backtrackdir
|
||||
firststep = 0
|
||||
end if
|
||||
exit do
|
||||
end if
|
||||
end if
|
||||
|
||||
checkdir=(checkdir+1) mod 8
|
||||
steps=steps+1
|
||||
checkdir = (checkdir + 1) mod 8
|
||||
steps = steps + 1
|
||||
loop
|
||||
|
||||
if steps=8 then exit do
|
||||
if steps = 8 then exit do
|
||||
|
||||
loop until (currentx=startx and currenty=starty and backtrackdir=startbacktrackdir)
|
||||
loop until (currentx = startx and currenty = starty and backtrackdir = startbacktrackdir)
|
||||
_source oldsource
|
||||
end sub
|
||||
|
||||
' =========================================================================
|
||||
' SUBROUTINE: SimplifyPolygon
|
||||
' =========================================================================
|
||||
sub simplifypolygon
|
||||
' FIX 4: Adjusted signature to cleanly receive the dynamic array as a parameter
|
||||
sub simplifypolygon (poly() as point2d)
|
||||
dim numpoints as long
|
||||
numpoints=totalpoints
|
||||
numpoints = totalpoints
|
||||
|
||||
if numpoints>2 then
|
||||
if contour(numpoints-1).x=contour(0).x and contour(numpoints-1).y=contour(0).y then
|
||||
numpoints=numpoints-1
|
||||
if numpoints > 2 then
|
||||
if poly(numpoints - 1).x = poly(0).x and poly(numpoints - 1).y = poly(0).y then
|
||||
numpoints = numpoints - 1
|
||||
end if
|
||||
end if
|
||||
|
||||
if numpoints<3 then exit sub
|
||||
if numpoints < 3 then exit sub
|
||||
|
||||
dim temp(0 to numpoints-1) as point2d
|
||||
dim temp(0 to numpoints - 1) as point2d
|
||||
dim keepcount as long
|
||||
|
||||
temp(0)=contour(0)
|
||||
keepcount=1
|
||||
temp(0) = poly(0)
|
||||
keepcount = 1
|
||||
|
||||
dim i as long
|
||||
for i=1 to numpoints-1
|
||||
dim previdx as long:previdx=i-1
|
||||
dim nextidx as long:nextidx=i+1
|
||||
if nextidx>numpoints-1 then nextidx=0
|
||||
for i = 1 to numpoints - 1
|
||||
dim previdx as long: previdx = i - 1
|
||||
dim nextidx as long: nextidx = i + 1
|
||||
if nextidx > numpoints - 1 then nextidx = 0
|
||||
|
||||
dim dx1 as single:dx1=contour(i).x-contour(previdx).x
|
||||
dim dy1 as single:dy1=contour(i).y-contour(previdx).y
|
||||
dim dx2 as single:dx2=contour(nextidx).x-contour(i).x
|
||||
dim dy2 as single:dy2=contour(nextidx).y-contour(i).y
|
||||
dim dx1 as single: dx1 = poly(i).x - poly(previdx).x
|
||||
dim dy1 as single: dy1 = poly(i).y - poly(previdx).y
|
||||
dim dx2 as single: dx2 = poly(nextidx).x - poly(i).x
|
||||
dim dy2 as single: dy2 = poly(nextidx).y - poly(i).y
|
||||
|
||||
dim crossproduct as single
|
||||
crossproduct=(dx1*dy2)-(dy1*dx2)
|
||||
crossproduct = (dx1 * dy2) - (dy1 * dx2)
|
||||
|
||||
if abs(crossproduct)>0.05 then
|
||||
temp(keepcount)=contour(i)
|
||||
keepcount=keepcount+1
|
||||
if abs(crossproduct) > 0.05 then
|
||||
temp(keepcount) = poly(i)
|
||||
keepcount = keepcount + 1
|
||||
end if
|
||||
next i
|
||||
|
||||
if keepcount>=3 then
|
||||
redim contour(keepcount-1) as point2d
|
||||
for i=0 to keepcount-1
|
||||
contour(i)=temp(i)
|
||||
if keepcount >= 3 then
|
||||
redim poly(keepcount - 1) as point2d
|
||||
for i = 0 to keepcount - 1
|
||||
poly(i) = temp(i)
|
||||
next i
|
||||
totalpoints=keepcount
|
||||
totalpoints = keepcount
|
||||
else
|
||||
redim contour(numpoints-1) as point2d
|
||||
for i=0 to numpoints-1
|
||||
contour(i)=temp(i)
|
||||
redim poly(numpoints - 1) as point2d
|
||||
for i = 0 to numpoints - 1
|
||||
poly(i) = temp(i)
|
||||
next i
|
||||
totalpoints=numpoints
|
||||
totalpoints = numpoints
|
||||
end if
|
||||
end sub
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue