Processing Forum

Loading...

Processing Forum

Screen name:
john.vavryshko

john.vavryshko's Profile

4 Posts

6 Responses

0 Followers

Activity Trend

Last 30 days

Loading Chart...

Show:

Expanded view
List view

Vectors and Rotation

[2 Replies]
- 05-Mar-2013 12:55 PM
- Forum: Programming Questions
Basically i have 2 vectors one for the coordinates of the predator and the other for the prey. I want to use rotate() in the rendering stage in order to make the predator face the direction of the prey.

How do i calculate the rotation so that the predator faces the prey

i messed around with angleBetween() but wasn't able to get it to work.

this is for my current project>> http://www.openprocessing.org/sketch/90239

Simple img.get() compatability with JS environment

[1 Reply]
- 12-Feb-2013 11:57 PM
- Forum: Processing with Other Languages
I just today started using the JS environment to engage feedback from the community.
the project that i'm working on converted just fine except for one small image related problem.
1. PImage img;
3. public void setup()
4. {
5. size(300,300,P2D);
6. img = loadImage("bacteria.jpg");
7. }
9. public void draw()
10. {
11. background(img.get(0,0,300,300));
12. }
In this scenario the code works just fine in the pde/offline java environment, but displays nothing in the JS.

and its simply because of the img.get() function being unresponsive.

also check out my current project.

http://www.openprocessing.org/sketch/89229

Of course its a work in progress with many features to come.

Image loading slowing down program

[2 Replies]
- 11-Feb-2013 09:39 PM
- Forum: Programming Questions
I was messing around with background images, and for some reason if i don't load the image immediately before i want to use it, a null pointer comes up.
right now this is what i have, and it seems to be resource heavy due to constant image loading
1. PImage BACK;
3. public void setup()
4. {
5. size(600,600,P2D);
6. }
8. public void draw()
9. {
10. background((loadImage("microbial.jpg").get(mouseX,mouseY,600,600)));
11. }
I would expect this to work and it doesn't
1. PImage img;
2. img = loadImage("microbial.jpg");
4. public void setup()
5. {
6. size(600,600,P2D);
7. }
9. public void draw()
10. {
11. background((img.get(mouseX,mouseY,600,600)));
12. }

Processing monsters project?

[7 Replies]
- 06-Feb-2013 05:32 PM
- Forum: General Discussion
It appears that the Url no longer exists for this particular project. I was wondering if anyone has a copy of some of the code or knows where i can find it. In particular I'm looking for the vector3D class or vector2D. For those of you who have no idea what I'm talking about its on page 10 of the exibition, it was a project where people submitted simple black and white monsters. One of them included a bit of code that i would find difficult to rewrite at my skill level.

«Prev
Next »