Hello all, I want to steer a shape along a pathway. Let’s say a spaceship that first goes along x axis and when at a certain point stops and rotates slowly around its axis and then starts in another direction. Like a framework with list of timers and different commands for the time periods. Ah, I …

Do you want the shape to be locked to the path like a rail, and slide along it, or do you want it to be following a series of waypoints over time like a boid where it can be begin off the path and move onto it? If you look at previous forum examples like LerpVectorsExample and LerpVectorsSimplified …

I am thinking you are referring to easing? This is an example . I am thinking along the lines of a ship in the sea, it takes time to make a turn after you gave the command. Is this the concept you want to explore? Kf

If it’s about easing, here’s another online example: :grinning: Studio.ProcessingTogether.com/sp/pad/export/ro.9XkJm3bjTAxB2

Thanks everyone for the great help!

I digged a bit into this and my experience is this: My goal was to animate a ship for a movie. So no interactivity involved. when you have a slow animation of a ship, that’s going forward 3.2 seconds and then brakes for 0.7 seconds and turns 90 degrees: Don’t rely on millis()! Because when you ad…

Hi there, I have a similar, perhaps simpler challenge–but being a newbie to Processing am a little stuck. How to move a spaceship GIF image from Earth along an elliptical orbit path past the outer planets and then back to Earth? Any assistance is mots appreciated. Cheers, Steve

2D animation…The GIF image is to follow an elliptical path…I currently simply plot some x,y positions, store them in an array, and then display the image at each point, as shown below. But the processing happens so fast, that on can’t see the movement. Changing the frameRate doesn’t seem to have an…

float angle=0; float radius = 160; void setup() { size (770, 770); } void draw() { background (0); // get x and y float x = width/2 + cos(radians(angle)) * radius; float y = height/2 + sin(radians(angle)) * radius * 2.9; ellipse(x, y, 17, 17); // ---------------- // manage …

Thanks Chrisir…Much appreciated…Big improvement on what I was doing…Now I need to brush up on my trigonometry…Below is the slightly modified code…The path is elliptical in a vertical direction…How might I adjust it to a horizontal direction? Also, what determines the starting point? I would like the…

[image] SteveG: lies at position (250,250)? replace width/2 and height/2 by 250 [image] SteveG: adjust it to a horizontal direction? move the * 2.9 one line up (it enlarges the radius in one direction)

Steering a Shape along a pathway

Processing Project Guidance

Chrisir March 4, 2021, 7:07am 18

That’s another approach than mine

In mine you slow down with adding smaller numbers to the angle

In yours please look at lerp in the reference

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Steering a Shape along a pathway

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