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Developer
Posts: 49
Registered: ‎03-27-2013
My Device: z10
My Carrier: Banglalink

Draw smooth path from a set of vertex by OpenGL ES 1.1

In my project I need to draw a path from a set of vertex. As I am using OpenGL ES 1.1 in my application I need to do it using OpenGL. But I came to know that anti-aliasing is not supported in OpenGL ES 1.1.

 

How can I solve my problem by using OpenGL ES 1.1? The path should look like path between two places in google map.

 

Thanks in advance.

Developer
Posts: 36
Registered: ‎01-16-2013
My Device: Z10
My Carrier: Telus

Re: Draw smooth path from a set of vertex by OpenGL ES 1.1

[ Edited ]

You can try using enabling line smoothing. 

glEnable(GL_LINE_SMOOTH);

- change the glLineWidth
- use GL_LINES

 

If the anti-aliasing is still not correct, just draw a bunch of lines on top of each other with different thinknesses and alpha values.

 

edit: also set up blending

Developer
Posts: 49
Registered: ‎03-27-2013
My Device: z10
My Carrier: Banglalink

Re: Draw smooth path from a set of vertex by OpenGL ES 1.1

[ Edited ]

Thanks for your reply.

 

Actually my path is not a straight line. My path will look like below-

google-map-boulder-ua-colorado-center-path.png

 

So, to draw a smooth path from a set of coordinate I need to take care of angel between two line. Actually I need round shape in common vertex. Can you give me any idea how to solve this issue?