Created
August 8, 2014 23:33
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#include "cinder/app/AppNative.h" | |
#include "cinder/gl/gl.h" | |
#include "cinder/params/Params.h" | |
using namespace ci; | |
using namespace ci::app; | |
using namespace std; | |
class FractalArbolApp : public AppNative { | |
public: | |
void setup(); | |
void mouseDown(MouseEvent event); | |
void update(); | |
void draw(); | |
void branch(float len, float angle); | |
float len; | |
int angle; | |
int h; | |
int w; | |
ci::params::InterfaceGlRef mParam; | |
}; | |
void FractalArbolApp::branch(float len, float angle) | |
{ | |
//Tronco | |
gl::color(1, 0, 0); | |
gl::drawLine(ci::Vec2f(0, 0), ci::Vec2f(0, -len)); | |
gl::translate(ci::Vec2f(0, -len)); | |
if (len<20) { | |
return; | |
} | |
else { | |
//Rama izquierda | |
gl::pushMatrices(); | |
gl::rotate(angle); | |
branch(len*0.7, angle); | |
gl::popMatrices(); | |
//Rama Derecha | |
gl::pushMatrices(); | |
gl::rotate(-angle); | |
branch(len*0.7, angle); | |
gl::popMatrices(); | |
} | |
} | |
void FractalArbolApp::setup() | |
{ | |
mParam = ci::params::InterfaceGl::create(getWindow(), "Arbol Fractal", ci::Vec2i(200, 200)); | |
mParam->addParam("len", &len, ""); | |
mParam->addParam("angle", &angle, ""); | |
h = 768; | |
w = 1024; | |
len = 100; | |
angle = 20; | |
setWindowSize(w, h); | |
setWindowPos(500, 200); | |
} | |
void FractalArbolApp::mouseDown(MouseEvent event) | |
{ | |
} | |
void FractalArbolApp::update() | |
{ | |
} | |
void FractalArbolApp::draw() | |
{ | |
//gl::clear(Color(1,1,1)); | |
gl::enableAlphaBlending(); | |
gl::color(1, 1, 1, 1); | |
gl::drawSolidRect(getWindowBounds()); | |
gl::pushMatrices(); | |
gl::translate(ci::Vec2f(w / 2, h)); | |
branch(len, angle); | |
gl::popMatrices(); | |
mParam->draw(); | |
} | |
CINDER_APP_NATIVE(FractalArbolApp, RendererGl) |
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Solo necesitabas el gl::pushMatrix() y gl::popMatrix() entre el translate, le anadi el angulo tambien a la funciona para entender mejor la fucion