careful, your noobieness is showing
silverback
Posts: 40
Hey guys,
I need a little help understanding a section of the WAM manual.
I am (for some reason) having a heck of a time wrapping my mind around the offset and scaling section on pages 155-158.
I have read the section a couple of times, but I seem to be hitting a mental block.
Any one have an alternative method of explaining the theory and practice of offset and scaling.
Thanks
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
If you convince yourself that something is impossible before you even try; you are sure to prove yourself right.
I need a little help understanding a section of the WAM manual.
I am (for some reason) having a heck of a time wrapping my mind around the offset and scaling section on pages 155-158.
I have read the section a couple of times, but I seem to be hitting a mental block.
Any one have an alternative method of explaining the theory and practice of offset and scaling.
Thanks
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
If you convince yourself that something is impossible before you even try; you are sure to prove yourself right.
Comments
Let's see here...
Try drawing two horizontal lines of the same length, one directly above the other. Mark the ends of one line "1" and "691". Mark the ends of the other line "500" and "1000".
Now put a little vertical tick mark about where you think 400 would be on the top line. A little more than halfway up the scale, right?
Put another tick at the same point on the bottom line. It's 400 on the top scale: what is it on the bottom scale? That's the problem you're tackling here.
It's 400/691 of the way from 1 to 691 on the top scale. That comes out to 57.89% of the way up.
It's also 400/691 of the way from 500 to 1000 on the bottom scale (that is, still 57.89% of the way up).
The bottom scale is 500 units wide. What is 57.89% of 500?
(400/691)*500 = 289.4
You're going to be 289.4 points up from the bottom of the bottom scale. The bottom is 500, so you'll be at 289.4+500, or 789.4. That's where your bottom tick mark is, on that scale.
============
Okay, having written that, it occurs to me that you might really be asking about the use of the */ operator to do the multiplication by a fraction. Someone else will have to tackle that, if that's the issue.
Post Edited (sylvie369) : 2/6/2010 6:32:04 PM GMT
That does help clear it up.
I think it will also help when I can get some hands-on.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
If you convince yourself that something is impossible before you even try; you are sure to prove yourself right.