The four values are the X and y of the center and teh x and y of a point on the edge of the circle.
If you have a radius you can just add the redail to either the x or y of the center value to get a point on the edge.
Eg circle at 50,50 with 30 pixel radius...
add 30 to the x value of the center gives 80 so the draw is...
-draw 'circle 50,50 80,50'
For more info see Im draw primatives
http://www.cit.gu.edu.au/~anthony/graph ... primatives
Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
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