Bitmap/Bresenham's line algorithm: Difference between revisions
Content added Content deleted
imported>Chinhouse |
imported>Chinhouse |
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| Line 2,837: | Line 2,837: | ||
<syntaxhighlight lang="miniscript"> |
<syntaxhighlight lang="miniscript"> |
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Img = new Image |
Img = new Image |
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Img. |
Img.create = function(w,h,c) |
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if c == null then c = color.black |
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i = Image.create(w,h, c) |
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j = new Img |
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j._handle = i._handle |
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j.width = w |
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j.height = h |
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return j |
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end function |
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Img.pixelColor = color.white |
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Img.line = function(x1, y1, x2, y2) |
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dx = abs(x2 - x1) |
dx = abs(x2 - x1) |
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sx = -1 * -(x1 < x2) |
sx = -1 * -(x1 < x2) |
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| Line 2,846: | Line 2,856: | ||
er = floor(er / 2) |
er = floor(er / 2) |
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while true |
while true |
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self.setPixel x1, y1, |
self.setPixel x1, y1, self.pixelColor |
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if x1 == x2 and y1 == y2 then break |
if x1 == x2 and y1 == y2 then break |
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e2 = er |
e2 = er |
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| Line 2,859: | Line 2,869: | ||
end while |
end while |
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end function |
end function |
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img= Img.create(320, 320) |
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img.line 0,0, 250, 300 |
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gfx.drawImage img, 0, 0 |
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</syntaxhighlight> |
</syntaxhighlight> |
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