I’m still new to OpenGL so kindly bear with me. How do you do dotted or dashed lines? The desktop has the ability to do line stipples, but it seems this is not supported here. Is there another way to get the desired effect?
Textured triangles. Many implementations reduce lines to triangles anyway.
If you are using this to render maps: Draw the map using OpenVG to a texture, then apply the texture to your terrain model. Gives you high quality fonts, lines, area fills and everything else you need to make it look pretty.