source: cpp/frams/_demos/part_shapes.cpp @ 139

Last change on this file since 139 was 139, checked in by sz, 10 years ago

class renaming + minor corrections

  • Property svn:eol-style set to native
File size: 2.0 KB
RevLine 
[121]1// This file is a part of the Framsticks GDK.
2// Copyright (C) 2002-2014  Maciej Komosinski and Szymon Ulatowski.  See LICENSE.txt for details.
3// Refer to http://www.framsticks.com/ for further information.
4
[109]5#include <stdio.h>
6#include <frams/model/model.h>
7#include <frams/model/modelparts.h>
8
9int main()
10{
[139]11        Model m;
12        Part *p1, *p2;
13        Joint *j;
[109]14
[139]15        m.open();
[109]16
[139]17        // chain of ellipsoids - subsequent parts are placed relative to the previous part's orientation and location
18        p1 = m.addNewPart(Part::SHAPE_ELLIPSOID); //initial part
19        p1->scale = Pt3D(1.0, 0.7, 0.4);
[109]20
[139]21        Orient rotation = Orient_1; //must be initialized explicitly because the default Orient constructor does not initialize anything
22        rotation.rotate(Pt3D(0.1, 0.2, 0.3));
[109]23
[139]24        for (int N = 10; N > 0; N--, p1 = p2)
[109]25        {
[139]26                p2 = m.addNewPart(Part::SHAPE_ELLIPSOID);
27                p2->scale = p1->scale*0.9; //each part is smaller than its predecessor
[109]28
[139]29                Pt3D advance(p1->scale.x, 0, 0); //advance by previous part's ellipsoid x radius
30                p2->p = p1->p + p1->o.transform(advance); //advance vector transformed by p1's orientation (i.e., in p1's local coordinates)
31                p2->setOrient(p1->o.transform(rotation)); //rotation transformed by p1's orientation
32
33                m.addNewJoint(p1, p2, Joint::SHAPE_SOLID); //all parts must be connected
[109]34        }
35
[139]36        // chain of cyllinders - line segments between points calculated from the parametric formula P(a)=(2-2*cos(a),2*sin(a)) (circle with r=2)
37        Pt3D prev, next;
38        p1 = m.getPart(0);
39        for (float a = 0; a<M_PI; a += M_PI / 10)
[109]40        {
[139]41                Pt3D next(2 - 2 * cos(a), 0, 2 * sin(a));
42                if (a>0)
[109]43                {
[139]44                        p2 = m.addNewPart(Part::SHAPE_CYLINDER);
45                        p2->setPositionAndRotationFromAxis(prev, next);
46                        p2->scale = Pt3D(prev.distanceTo(next)*0.5, 0.05, 0.05);// distance*0.5 because scale is "radius", not cylinder length
[109]47
[139]48                        m.addNewJoint(p1, p2, Joint::SHAPE_SOLID); //all parts must be connected
[109]49                }
[139]50                p1 = p2;
51                prev = next;
[109]52        }
53
[139]54        m.close();
55        puts((const char*)m.getF0Geno().toString());
56        // the genotype can be fed directly to the genotype viewer, like this:
57        // part_shapes | theater -g -vpart_shapes -
[109]58}
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