Search found 3 matches

by bayley
2013-07-02T00:02:35-07:00
Forum: Users
Topic: De polar problems
Replies: 6
Views: 4118

Re: De polar problems

Ok, next best thing would be some sort of linear shepherd distortion. Does anyone know how to use a shepherd distort that uses linear interpolation instead of invers square? still looking into bi-linear.
by bayley
2013-07-01T20:09:47-07:00
Forum: Users
Topic: De polar problems
Replies: 6
Views: 4118

Re: De polar problems

Its just a small arc of the conic section, it neither extends to the apex not to the the full circumfrence of the circle. Yes, thats what i use using my arguments, however i assumed that min radius would be the smallest radius to the centre that is indside the canvas. But in anycase I was playing ...
by bayley
2013-07-01T07:40:46-07:00
Forum: Users
Topic: De polar problems
Replies: 6
Views: 4118

De polar problems

Hi, i'm a bit new to image magic, I'm hoping to convert some conic projection maps roughly to a cyclindrical projection. It's 8207x6062, i've calculated the centre of the cone net to be at 4412,96810. Obviously this is outside the canvas areas. The left side map is about 14* lognitude from the right ...