2d Map with Lines between points, help!

[Majestic12]

Hello again,

I've tried the following too:

viz.startLayer(viz.QUADS) 
viz.vertex(0,0,0) 
viz.vertex(2048,0,0)
viz.vertex(2048,0,2048)
viz.vertex(0,0,2048)
mapQuad = viz.endLayer()

mapQuad.zoffset(1,1)
mapQuad.texture(viz.add('1.png'))

Using that code I get a flat purple surface. The one in my prior post had a white surface instead.