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Activity stream for all registered members at Metabunk.

  1. Barclay99x

    Barclay99x has a new avatar.

    Mar 21, 2019 at 6:40 AM
  2. Mick West

    Mick West attached a file to the thread Earth's Curve Calculator.

    Spurred on by @Rory's angular shenanigans, I've added a purely angular-size based calculation of the hidden amount. [ATTACH] This, of course, is in part to answer some critics of curve calculators in the FE community who claim the curve...

    Metabunk 2019-03-20 16-16-57.jpg Metabunk 2019-03-20 16-37-40.jpg Metabunk 2019-03-20 21-48-40.jpg Mar 20, 2019 at 9:53 PM
  3. Mick West

    Mick West replied to the thread Earth's Curve Calculator.

    Fixed!

    Mar 20, 2019 at 11:22 AM
  4. Rory

    Rory replied to the thread Earth's Curve Calculator.

    Ditto. I'm guessing they used to be blue? Did you notice the one that says "= Draggable" is also draggable. That's cool. :) I've got a little j under my green line (line of sight to horizon). You?

    Mar 20, 2019 at 10:47 AM
  5. Rory

    Rory replied to the thread How can we explain perspective calculations simply?.

    Hang five: I'm pretty sure it's the latter. I had a bit of an issue with the obstruction calculator that I did, where it worked differently for points above or below eye level, and the same may be happening here (mountains below, buildings...

    Mar 20, 2019 at 10:24 AM
  6. DavidB66

    DavidB66 replied to the thread How can we explain perspective calculations simply?.

    @Rory says: The calculator I've used above on the 5th Avenue photo is based purely on flat plane trig without refraction. But I thought I'd see how the sphere earth calculator fared, with refraction. Predicted apparent height order is the same...

    Mar 20, 2019 at 7:29 AM
  7. Mick West

    Mick West attached a file to the thread Earth's Curve Calculator.

    The sagitta isn't used in the computations. It's a side effect. The curve of the ball is defined by the radius. So we use the radius in the calculation. The bulge height is the height in the middle, but this height is not the height of the...

    Metabunk 2019-03-20 06-55-33.jpg Mar 20, 2019 at 6:59 AM
  8. Mick West

    Mick West replied to the thread How can we explain perspective calculations simply?.

    Can you share that spreadsheet?

    Mar 20, 2019 at 5:52 AM
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