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3D bodies intersections

[1 Reply]
- 03-Apr-2012 03:48 AM
- Forum: General Discussion
hello all,

im looking for a way to check intersections between 3d bodies of different types.

I have so far tried using the Hemesh library, but without any success.

any Ideas as for how can i do so?

(or any references?)

thanks

Hemesh Library WB_transform

[2 Replies]
- 28-Mar-2012 02:56 AM
- Forum: Contributed Library Questions
hello
newbie to the library and in general... patience required here

im trying to rotate a box (for example) created by hemesh library.

the normal rotation command does change its appearance, but not the real coordinates so that if i check for an

intersection with another box after the rotation - the result stays the same.

I beleive the WB_Transform class should do that, but i don't understand how to use it -

could someone assist? current code attached

many thanks

import processing.opengl.*;

import peasy.*;

PeasyCam pcam;

import wblut.hemesh.modifiers.*;

import wblut.geom.frame.*;

import wblut.hemesh.composite.*;

import wblut.core.processing.*;

import wblut.hemesh.tools.*;

import wblut.hemesh.simplifiers.*;

import wblut.hemesh.subdividors.*;

import wblut.geom.nurbs.*;

import wblut.core.random.*;

import wblut.geom.triangulate.*;

import wblut.hemesh.creators.*;

import wblut.geom.tree.*;

import wblut.hemesh.core.*;

import wblut.geom.grid.*;

import wblut.core.structures.*;

import wblut.core.math.*;

import wblut.geom.core.*;

WB_Render render;

WB_AABB a = new WB_AABB(0,0,0,250,250,50);

WB_AABB b = new WB_AABB(250,250,0,500,500,50);

WB_Transform t = new WB_Transform();

void setup() {

size (600,600,OPENGL);

render = new WB_Render(this);



pcam = new PeasyCam (this, 100);

pcam.lookAt (100,0,300,1000,1); //(look x, look y, look z, zoom, time to target);

}

void draw() {

background (185);

directionalLight(255, 255, 255, 1, 1, -1);

directionalLight(127, 127, 127, -1, -1, 1);

drawAxis();



//t.addRotateX(30);

fill(0,0,0,50);

// a.apply(t);

fill (0);

render.draw(a);

//rotate(PI/2);

fill (10,190,30);

render.draw(b);

//rotate (-PI/2);

println(a.checkIntersection(b));

}

void drawAxis() {

stroke(#F52C2C); //x is red

line (0,0,0,1000,0,0);

stroke(#8CF52C); //y is green

line (0,0,0,0,1000,0);

stroke(#615DFF); //z is blue

line (0,0,0,0,0,1000);

}

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