protected T_BOUNDS getBounds(CTSPPointList citys)
{
T_BOUNDS ret = new T_BOUNDS();
if (citys.length() > 0)
{
ret.left = double.MaxValue;
ret.bottom = double.MaxValue;
for (int cityIndex = 0; cityIndex < citys.length(); cityIndex++)
{
CTSPPoint city = citys.getPoint(cityIndex);
if (city.x < ret.left)
{
ret.left = city.x;
}
if (city.y < ret.bottom)
{
ret.bottom = city.y;
}
if (city.x > ret.right)
{
ret.right = city.x;
}
if (city.y > ret.top)
{
ret.top = city.y;
}
}
}
else
{
ret.left = 0;
ret.bottom = 0;
ret.right = this.Width;
ret.top = this.Height;
}
return(ret);
}
public void initViewPort()
{
InitializeContexts();
Gl.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
Gl.glMatrixMode(Gl.GL_PROJECTION);
Gl.glLoadIdentity();
mBounds = getBounds(mCityList);
mBounds.left -= 5;
mBounds.right += 5;
mBounds.bottom -= 5;
mBounds.top += 5;
// hier müssen wir bestimmen wie groß die Renderfläche sein soll
// wenn z.b. die äußerste Stadt bei 345, 239 liegt, sollte der
// Viewport ein wenig größer sein
Gl.glOrtho(mBounds.left, mBounds.right, mBounds.bottom, mBounds.top, -100.0f, 100.0f);
}
protected T_BOUNDS getBounds(List <CVector2f> citys)
{
T_BOUNDS ret = new T_BOUNDS();
ret.left = 0;
ret.bottom = 0;
foreach (CVector2f city in citys)
{
if (city.x > ret.right)
{
ret.right = city.x;
}
if (city.y > ret.top)
{
ret.top = city.y;
}
}
return(ret);
}