border_pixels!

milkyjing

Alex 发表于 2013-11-12 14:14
hmmm. I didn't get you
do I have to focus what written in red color?

yes, focus on the text in red, indeed, there are two kinds of functions, to get a PIX structure that only contain the boarder pixels, the other, get points of the boarder.

below is a demo of usage of TextOutlinePoints.

1. from tcaxPy import *
   
2. 
   
3. def tcaxPy_Init():
   
4.     global _Fs
   
5.     global Font
   
6.     _Fs = GetVal(val_FontSize)
   
7.     Font = InitFont(GetVal(val_FontFileName), GetVal(val_FaceID), _Fs, GetVal(val_Spacing), GetVal(val_SpaceScale), 0xFFFFFF, 0, 0)
   
8. 
   
9. def tcaxPy_Fin():
   
10.     FinFont(Font)
    
11. 
    
12. def tcaxPy_Main(_i, _j, _n, _BT, _ET, _SK, _KT, _X, _Y, _A, _TXT):
    
13. 
    
14.     ASS_BUF = []
    
15.     TCS_BUF = []
    
16. 
    
17.     ass_main(ASS_BUF, SubL(_BT + 200, _ET), pos(_X, _Y) + color1('00FFFF') + bord(0) + blur(4) + fad(400, 0), _TXT)
    
18. 
    
19.     dx = _X - int(_A / 2 + 0.5)
    
20.     dy = _Y - int(_Fs / 2 + 0.5)
    
21.     outline = TextOutlinePoints(Font, _TXT, 1.0)
    
22.     num = len(outline)
    
23.     dur = 200
    
24.     for i in range(num):
    
25.         ts = _BT + dur * i / num
    
26.         te = _ET
    
27.         x = dx + outline[i][0]
    
28.         y = dy + outline[i][1]
    
29.         EFT = pos(x, y) + alpha1(0) + alpha3(150) + alpha4(200) + bord(1) + shad(1) + be(1) + \
    
30.               color1('0000FF') + color3('FF00FF') + color4('FFFF00') + fad(200, 0)
    
31.         ass_main(ASS_BUF, SubL(ts, te, 1, Pix_Style), EFT, PixPt())
    
32. 
    
33.     return (ASS_BUF, TCS_BUF)

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milkyjing

Alex 发表于 2013-11-12 14:14
hmmm. I didn't get you
do I have to focus what written in red color?

moreover, PIX object can be converted to Points object, vice versa.

1. FontOut = InitFont(_FontFileName, _FaceID, _Fs, _Spacing, GetVal(val_SpaceScale), 0xFFFFFF, 3, True)
   
2. PIX = TextPix(FontOut, _txt)

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the PIX will contain pixels that shows a text whose boarder is 3, and with main structure hollowed.

you can use the following code to debug

1. SavePix(abspath("pix.png"), PIX)
   
2. Pause()

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btw, by using tcax's drawing utility, the cairo module, you can convert any vectorial drawing into pixels bitmaps. for your ref. http://www.tcax.org/forum.php?mod=viewthread&tid=208