Mike Sue-Ping
Cambridge, Ontario, Canada
General information
Category:
Forms & Form designer
>I'm using a VFP 6.0 shape on a form and set it's FillStyle to 4 - Upward Diagonal. This sets a pattern of parallel lines that have a positive slope (from lower left to upper right).
>
>When I do this in VB6, it fills with a negative slope (upper left to lower right).
>
>Which pattern is correct for an "Upward Diagonal"?
Mike,
From a math article I was able to find, "the slope computed as m = (y2 - y1) / (x2 - x1)." If you set the left-most part of the line at (0, 0) then a lower left to upper right line has a positive slope due to the fact that both the x and y values are increasing, where an upper right to lower left line has a negative slope (y goes from 0 to -something, while x increases). I'd say that a line with a positive slope goes "upward" and a line with a negative slope goes downward.
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