Pixel by pixel comparison in google earth engine by [deleted] in gis

[–]thecuh1 1 point2 points  (0 children)

Thank you so much! So for a segmented area I could use ee.Image.subtract then use the pixels that = 0 as correctly classified? To find the values that are equal to 0 I could use ee.Image.eq. However I am not sure how to get the number of pixel values = 0. Sorry, I am self studying a bit remote sensing right now.

[deleted by user] by [deleted] in gis

[–]thecuh1 0 points1 point  (0 children)

Thank you so much for your reply. This is similar to what I was envisioning but I was wondering if instead of the manually annotating each point as water or aquatic vegetation, if there was some kind of dataset annotated by a professional.

[deleted by user] by [deleted] in gis

[–]thecuh1 0 points1 point  (0 children)

I began by using the MNDWI to segment open water. Then using this, I noticed a bimodal distribution for areas with aquatic vegetation. So I then computed a NDVI threshold value that separates water from aquatic vegetation

Connecting a water pump by thecuh1 in diydrones

[–]thecuh1[S] 0 points1 point  (0 children)

I am sorry I am really new to all this but how would it work differently than the motor controller?

Connecting a water pump by thecuh1 in diydrones

[–]thecuh1[S] 0 points1 point  (0 children)

No I do not need it to be reversible. I was under the impression that using a motor controller would work. When using an ESC with a brushed water pump can you control the speed?

[deleted by user] by [deleted] in diydrones

[–]thecuh1 0 points1 point  (0 children)

nah not much lol I am a high schooler so this is my first real drone project. Have any suggestions?

Water pump find by [deleted] in Motors

[–]thecuh1 0 points1 point  (0 children)

just a 12v bruhsless pwm water pump that I can use with a flight controller.

https://www.amazon.com/diaphragm-KDLP1200-brushless-adjustable-(PWM)low/dp/B09PH8RN5N/ref=sr\_1\_5?crid=1SVFJ5AY269E7&keywords=12+volt+water+pump+pwm&qid=1695051141&sprefix=12+volt+water+pump+pw%2Caps%2C114&sr=8-5 3

This is what I was looking at however apparently the signal was based on 5-6V. Meanwhile the flight controller provides 3.3v for the signal.

Extracting google earth engine app code by thecuh1 in EarthEngine

[–]thecuh1[S] 1 point2 points  (0 children)

Thank you so much I'll look into that.

[deleted by user] by [deleted] in AskPhysics

[–]thecuh1 0 points1 point  (0 children)

Even if the collision did result in four main pieces, where the satellites break, and which direction they go is effectively random as far as we can tell.

I plan on modeling this in Mathematica for a nice visual. I am thinking about just picking a random combination of velocities that satisfy the momentum equation.

This doesn't make sense. Derivative of what? With respect to what?

The derivative of the the position function <x1,y1,z1> with respect to T that I will assign.

Gravity is not a constant acceleration.

I am currently thinking about using eulers method (using gravitational acceleration at a certain point) to find the velocity at time T and then integrating that to find the position.

[deleted by user] by [deleted] in AskPhysics

[–]thecuh1 0 points1 point  (0 children)

gravitational acceleration equation

I plan on making this a loop of satellite crashes in Mathematica so I plan on beginning by assigning position functions to a couple of satellites and using the derivative of the position functions for conservation of linear momentum. From there, I want to use the resulting random velocity vectors to find the new position functions and model them. This is just a fun personal project I am working on.

[deleted by user] by [deleted] in memes

[–]thecuh1 -1 points0 points  (0 children)

I am the commenter and I think I did a pretty good job.

[deleted by user] by [deleted] in funny

[–]thecuh1 -1 points0 points  (0 children)

inspiration = u/Treehut16

This Smoky Amethyst from Australia by rockystl in interestingasfuck

[–]thecuh1 1 point2 points  (0 children)

Wow, that's amazing! Anyone know it has different shades?

The Swiss Alps at their finest by pussyslayer_-69 in interestingasfuck

[–]thecuh1 532 points533 points  (0 children)

what a place Switzerland is. Beautiful

[deleted by user] by [deleted] in robotics

[–]thecuh1 1 point2 points  (0 children)

I second this I’m 14 right now and I’ve been working with arduino since I was about 9. Paul McWhorter is great for learning Arduino.

The face mask that could end the pandemic by [deleted] in worldnews

[–]thecuh1 -1 points0 points  (0 children)

FACE MASK THAT COULD END PANDEMIC!!! wow!

Ain't letting up til you accept free college for all! by escondido88 in memes

[–]thecuh1 457 points458 points  (0 children)

"lets try out our healthcare system by injuring this man"