BlindMonk wrote at 2013-08-27 15:15:
I want to display a polar image something like:
Can someone give me some pointers where I can start?
thanks a lot.
objo wrote at 2013-08-27 15:26:
A custom series is required to render this. You should create an image that covers the sector (the pixels outside the sector should be transparent). For each pixel, calculate the polar coordinates, interpolate the value and set the pixel color by the color axis. This sounds like a fun example - should be added to the example library!
BlindMonk wrote at 2013-08-27 16:50:
I am working on it. Hopefully I will spend enough time to make it work.
Thanks a lot objo for this library. By the way, I hope you checked the bug I posted in imageannotation.
objo wrote at 2013-08-28 01:53:
BlindMonk wrote at 2013-08-29 11:04:
Interestingly I need x-y coordinates not polar, on the axes. And still no zoom on polar coordinates. I have to zoom since I have too many points and single points are of significant importance for visualization.
I was thinking may be I can make an oxyimage which looks like polar (example) and render it on XY grid.
objo wrote at 2013-08-29 11:40:
objo wrote at 2013-08-29 11:55:
BlindMonk wrote at 2013-08-29 14:22:
but it is rather slow. I have to find a way to use an image instead of a series. I will use your tips and try to get it to work. I will keep posted if I need some guidelines.
BlindMonk wrote at 2013-09-06 12:17:
Cant make polygons with float coordinates. writablebitmapex cant be used. Square one.
objo wrote at 2013-09-06 21:23:
I added some examples with different image sizes under "Custom series" in the example browser.
BlindMonk wrote at 2013-09-09 15:04:
BlindMonk wrote at 2013-10-03 14:13:
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