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DDA in Python
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| def ROUND(a): | |
| return int(a + 0.5) | |
| def drawDDA(x1,y1,x2,y2): | |
| x,y = x1,y1 | |
| length = abs((x2-x1) if abs(x2-x1) > abs(y2-y1) else (y2-y1)) | |
| dx = (x2-x1)/float(length) | |
| dy = (y2-y1)/float(length) | |
| print 'x = %s, y = %s' % (((ROUND(x),ROUND(y)))) | |
| for i in range(length): | |
| x += dx | |
| y += dy | |
| print 'x = %s, y = %s' % (((ROUND(x),ROUND(y)))) | |
| drawDDA(2,5,10,20) |
Author
length = abs(x2-x1) if abs(x2-x1) > abs(y2-y1) else abs(y2-y1)
As it is written drawDDA(1,5,10,20) doesn't return the same set (or even count of) values as drawDDA(10,20,1,5)
Should work now
'x = %s, y = %s' % (((ROUND(x),ROUND(y)))) this statement should be in parenthesis, else it shows error in VScode.
Author
'x = %s, y = %s' % (((ROUND(x),ROUND(y)))) this statement should be in parenthesis, else it shows error in VScode.
This is python2 code
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length = abs(x2-x1) if abs(x2-x1) > abs(y2-y1) else abs(y2-y1)
As it is written drawDDA(1,5,10,20) doesn't return the same set (or even count of) values as drawDDA(10,20,1,5)