X & Y proportional scale

StudentD

New member
Joined
Jan 30, 2018
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Hi everyone,

I'm new here so thanks in advance for reading and any help you may give.

So I am trying to plot points in a rectangle. I am given an X and Y value that is 0,0 if its in the centre of the rectangle. if its Y position is -750 its at the top and 750 if its at the bottom.
I am trying to plot it onto a chart but a calculation is needed. On my chart the Y centre is also 0, but the top is position 0.967 and bottom is -0.967

So in essence

Y top = -750 and 0.967
y bottom = 750 and -0.967
y middle = 0 and 0

What would be the calculation for instance if I got given a y value of -400

Thanks
 
So I am trying to plot points in a rectangle. I am given an X and Y value that is 0,0 if its in the centre of the rectangle. if its Y position is -750 its at the top and 750 if its at the bottom.
I am trying to plot it onto a chart but a calculation is needed. On my chart the Y centre is also 0, but the top is position 0.967 and bottom is -0.967

So in essence

Y top = -750 and 0.967
y bottom = 750 and -0.967
y middle = 0 and 0

What would be the calculation for instance if I got given a y value of -400

I imagine this is a graphic programming problem, where the vertical axis is taken to be oriented downward.

As you say, the distance is proportional to the coordinate. So their ratio is d/y = 0.967/-750. Just solve the proportion to find d when y = -400 or whatever.

Please show your work if you want further help.
 
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