how to export oop objects in dxf?

Core Library Questions

mattklynch

how to export oop objects in dxf?

in Core Library Questions • 2 years ago

I'm running into a problem with exporting multiple objects in one code with a key stroke activated export. The issue is if I put the record strings in the drawBall() string it will only give me one object, however it yeilds nothing with placed up where the oop instantiation is, but the other point and image exporters work still. does anyone have any advice?

*note: code is a little sloppy looking because i have been cutting and pasting stuff around to get it to work

import peasy.*;
import processing.dxf.*;
boolean record;
PeasyCam cam;
float [] xpos = new float[800];
float [] ypos = new float [800];
float [] zpos = new float [800];
Ball[] ballies = new Ball[5];
attractor[] attractor = new attractor[5];
int counter;
PrintWriter OUTPUT;
// setup
void keyPressed(){
if (key == 'r') record = true;
switch(key){
case 'i':
saveFrame("image"+counter+".jpg");
break;
case 'b':
exportBallPoints2Text();
break;
case 'a':
exportAttractorPoints2Text();
break;
}
counter++;
}
void exportBallPoints2Text(){
OUTPUT = createWriter("Balls"+counter+".txt");
for (int i=0; i<ballies.length; i++) {
OUTPUT.println(ballies[i].p.x + "," + ballies[i].p.y + "," + ballies[i].p.z);
}
counter++;
OUTPUT.flush();
OUTPUT.close();
println("complete success (balls) !");
}
void exportAttractorPoints2Text(){
OUTPUT = createWriter("attractor"+counter+".txt");
for (int p=0; p<attractor.length; p++) {
OUTPUT.println(attractor[p].x + "," + attractor[p].y + "," + attractor[p].z);
}
counter++;
OUTPUT.flush();
OUTPUT.close();
println("complete success (attractor) !");
}
void setup() {
size(800, 800, P3D);
cam = new PeasyCam(this, 100);
cam.setMinimumDistance(100);
cam.setMaximumDistance(200);
if (record) {
beginRaw(DXF, "output.dxf");
}
for (int i=0; i<ballies.length; i++) {
ballies[i] = new Ball(
400, 400, random(-10,10), random(-10,10),random(-10,10), 25);
}
if (record) {
endRaw();
record = false;
}
for (int p=0; p < attractor.length; p++) {
attractor[p] = new attractor( width/8 + random(width), height/8 + random(height), random(50));
smooth();
}
}
//........................................................
//........................................................
void draw() {
background(0);
stroke(250,250,250);
strokeWeight(2);
point(xpos[0], ypos[0], zpos[0]);
for (int g = 1; g <800; g++) {
point(xpos[g], ypos[g], zpos[g]);
}
for (int h = 0; h < 100; h++) {//draw x axis
stroke(255,h*5,0);
point(h,0,0);
}
for (int h = 0; h < 100; h++) {// draw y axis
stroke(h*5,255,0);
point(0,h,0);
}
for (int h = 0; h < 100; h++) {// draw z axis
strokeWeight(3);
stroke(0,255,h*5);
point(0,0,h);
}
for (int i=0; i<ballies.length; i++) {
ballies[i].update();
}
for (int p=0; p < attractor.length; p++) {
attractor[p].update();
}
}
//........................................................
class Ball {
// ball fields
float x;
float y;
float z;
float speedX;
float speedY;
float speedZ;
float angA;
float angV = 0;
boolean dead = false;
PVector a;
PVector v, p, standardV, offsetV;
// ball constructor
Ball(float _x, float _y, float _z, float _speedX, float _speedY, float _speedZ) {
p = new PVector(_x, _y, _z);
v = new PVector(_speedX, _speedY, speedZ);
standardV = new PVector(_speedX, _speedY, speedZ);
}
// ball methods
/*
void update() {
position();
checkCollisions();
drawBall();
}
*/
///////////////////////////////
void update() {
if (!dead) {
a = new PVector();
for (int i = 0; i < attractor.length; i++) {
a.add(attractor[i].getAccel(p.x,p.y,p.z));
}
angA = a.heading2D();
angV += angA/.25;
v = new PVector( standardV.x, standardV.y, standardV.z);
a.normalize();
a.mult(v.mag());
a.mult(0.5);
v.add(a);
//checkCollisions();
p.add(v);
angV *= .9;
}
drawBall();
}
/////////////////////////////////////
void drawBall() {
pushMatrix();
translate( p.x, p.y, p.z);
//front
beginShape();
vertex(p.x+25,p.y,p.z+50);
vertex(p.x+25,p.y,p.z);
vertex(p.x+35,p.y,p.z);
vertex(p.x+35,p.y,p.z+65);
vertex(p.x-35,p.y,p.z+65);
vertex(p.x-35,p.y,p.z);
vertex(p.x-25,p.y,p.z);
vertex(p.x-25,p.y,p.z+50);
endShape(CLOSE);
/*
beginShape();
vertex(p.x-35,p.y,p.z+65);
vertex(p.x-35,p.y-random(2,10),p.z+65);
vertex(p.x-35,p.y-random(2,10),p.z);
vertex(p.x-35,p.y,p.z);
endShape(CLOSE);
*/
//sphere(5);
popMatrix();
}
/*
void checkCollisions() {
if(p.x + v.x > width || p.x + v.x < 0) {
v.x *= -1;
standardV.x *= -1;
}
if(p.y + v.y > height || p.y + v.y < 0) {
v.y *= -1;
}
if(p.y + v.y > height || p.y + v.y < 0) {
v.y *= -1;
}
}
*/
}
/////////////////////////////////////////////////////
class attractor {
float x,y,z;
attractor(float _x, float _y, float _z ) {
x = _x;
y = _y;
z = _z;
}
void update() {
render();
}
void render() {
stroke(255,0,0);
pushMatrix();
translate(x,y,z);
box(5);
popMatrix();
}
PVector getAccel(float px, float py, float pz) {
PVector a = new PVector(0,0,0);
float d2 = sq(dist(px,py,pz,x,y,z));
if (d2 > 10) {
a.x = G * (x-px) / d2;
a.y = G * (y-py) / d2;
a.z = G * (z-pz) / d2;
}
return a;
}
}

Replies(2)

mattklynch

Re: how to export oop objects in dxf?

2 years ago

bump? anyone?

gordoncsa

Re: how to export oop objects in dxf?

1 year ago

Not sure if you're still working on this, but if so:

You have to put the beginRaw() and endRaw() commands around where the scene is actually drawn, in the draw method. As it is, you have them around the constructor for the balls (where nothing gets drawn!)

When you had put the commands inside the ball's draw method, it would save a file with just that ball, then overwrite it with the next one five times.

Hope it helps!

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