2 replies to this topic

[rakeshkr590]

hi guys i am bit new to this opentk in mono and i am trying to port my game to this ios and android both using mono develop but i kind of stuck looking in to this opentk api stuff could you please tell me how to draw a 2dquad with width and height between two points please

[MarkS]

I don't know OpenTK, but defining a quad via two points is easy:

x1,y1.......??,??
......................
......................
......................
??,??.......x2,y2

The two missing points are defined as:
x2,y1 and
x1,y2.

So the quad, in CCW order would be:
x1,y1,
x1,y2,
x2,y2,
x2,y1.

If you only know the one set of coordinates and the width and height,
x2 = x1 + width
y2 = y1 + height.

Someone else will have to show you how to translate that into OpenTK commands, but the above will be universal to any rendering API.

Edited by MarkS, 14 November 2012 - 02:59 PM.

[rakeshkr590]

thanks for the reply mark here the problem is not about the maths sorry for not explaining properly its about the opentk stuff i was after . no worries i am finding my way out
happy coding .

Edited by rakeshkr590, 15 November 2012 - 06:22 AM.