void Branch::draw( cairo::Context ctx )
{
if ( mLaunchDelay > 0 )
return;
if( ( mLifespan > 0 ) && ( ! mIsRoot ) ) {
float ageLerp = 1.0 - mLifespan / (float)mTotalLifespan;
float radius = lerp( mStartEllipseRadius, mEndEllipseRadius, ageLerp );
ColorA drawColor = lerp( mStartColor, mEndColor, ageLerp );
ctx.setSourceRgba( drawColor.r, drawColor.g, drawColor.b, 0.075f );
ctx.circle( mPos, ( 5.0f * mScale + radius * 1.3f ) / 2 );
ctx.fill();
ctx.setSource( drawColor );
ctx.circle( mPos, radius / 2 );
ctx.fill();
}
for( vector<Branch>::iterator blossomIt = mBranches.begin(); blossomIt != mBranches.end(); ++blossomIt ) {
blossomIt->draw( ctx );
}
}
void ContinuousPathApp::drawCircle(cairo::Context &ctx, Vec2f const &pt, double diameter, Color col, bool outline)
{
ctx.setLineWidth(1);
ctx.setSource( col );
ctx.newSubPath();
ctx.circle( pt.x, pt.y, diameter );
ctx.closePath();
if(outline){
ctx.stroke();
}else{
ctx.fill();
}
}