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I have a COM component which draws a WorldMap on CView and the point values on the world map ranges from (x1, x2, y1, y2) (-180, 180, -90, 90). The component has the facility to zoom pan etc. Also since this is a world map the edges are wrapped around, for eg after +180 and next point is 180. So I set the full ortho as (-180, 180, -90, 90) for the whole worldmap. In zoom/pan i change the ortho values.<br />
The problem starts when the pan window hits the 'edges' of the world map so the ortho values may become (170, -170, -20, 20). Since x1 &gt;&nbsp;x2 the drawing gets inverted/mirrored etc and opengl does not support an ortho setting like glOrtho(170, -170, 10, -10, -1000, 1000). I am at my wits end to find a elegant solution. <br />
Any help would be greatly appreciated.
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I have a COM component which draws a WorldMap on CView and the point values on the world map ranges from (x1, x2, y1, y2) (-180, 180, -90, 90). The component has the facility to zoom pan etc. Also since this is a world map the edges are wrapped around, for eg after +180 and next point is 180. So I set the full ortho as (-180, 180, -90, 90) for the whole worldmap. In zoom/pan i change the ortho values.
The problem starts when the pan window hits the 'edges' of the world map so the ortho values may become (170, -170, -20, 20). Since x1 > x2 the drawing gets inverted/mirrored etc and opengl does not support an ortho setting like glOrtho(170, -170, 10, -10, -1000, 1000). I am at my wits end to find a elegant solution. 
Any help would be greatly appreciated.

glOrtho problems - Wrap ?

I have a COM component which draws a WorldMap on CView and the point values on the world map ranges from (x1, x2, y1, y2) (-180, 180, -90, 90). The component has the facility to zoom pan etc. Also since this is a world map the edges are wrapped around, for eg after +180 and next point is 180. So I set the full ortho as (-180, 180, -90, 90) for the whole worldmap. In zoom/pan i change the ortho values.
The problem starts when the pan window hits the &#39;edges&#39; of the world map so the ortho values may become (170, -170, -20, 20). Since x1 &gt; x2 the drawing gets inverted/mirrored etc and opengl does not support an ortho setting like glOrtho(170, -170, 10, -10, -1000, 1000). I am at my wits end to find a elegant solution. 
Any help would be greatly appreciated.

Game programming is the software development of video games. Game programming requires substantial skill in software engineering as well as specialization in simulation, computer graphics, artificial intelligence, physics, audio programming, and input. Like other software, game development programs are generated from source code to the actual program by a compiler. Source code can be developed with almost any text editor, but most professional game programmers use a full integrated development environment (IDE).