Drawing an arc
Hi guys,
I have arc parameters from Autocad file and I need to draw it using opencv. However, using corresponding parameters in cv::ellipse function the arc is absolutely not the same as in Autocad.
Here is my code:
cv::ellipse(image, center, cv::Size(radius, radius), angle, start_angle, end_angle, cv::Scalar(255, 255, 255));
The picture should be like
but in fact I've got
Here is parameters for every arc:
1) center.x = 495.419403
center.y = 527.065674
start angle = 0.0000
end abgle = 56.88228
full angle = 56.88228
start.x = 501.41940
start.y = 527.06567
end.x = 498.69757
end.y = 532.090979
arc_center.x = 500.695245
arc_center.y = 529.92321
radius = 6.00000
2) center.x = 495.4194
center.y = 486.31543
start angle = 270.0000
end abgle = 0.0000
full angle = 90.0000
start.x = 495.41940
start.y = 480.31543
end.x = 501.4194
end.y = 486.31543
arc_center.x = 499.6620
arc_center.y = 482.07279
radius = 6.00000
3) center.x = 454.6691
center.y = 486.31543
start angle = 213.11771
end abgle = 270.000
full angle = 56.88228
start.x = 449.64386
start.y = 483.03727
end.x = 454.66916
end.y = 480.31543
arc_center.x = 451.8116
arc_center.y = 481.03959
radius = 6.00000
4) center.x = 419.4194
center.y = 562.31543
start angle = 56.88228
end abgle = 213.1177
full angle = 156.2354
start.x = 429.2539
start.y = 577.3913
end.x = 404.3435
end.y = 552.4809415
arc_center.x = 406.69148
arc_center.y = 575.04336
radius = 18.00000
How can I draw correct arcs? I've got start and end points of the arc, radius, and center points (arc center and center from where radius goes)
