Hello, > De : users [mailto:[email protected]] De la part de P M > Envoyé : lundi 18 février 2019 18:09 > > Actually my goal was to compare point coordinates to map coordinates > and find the points on the map which are closest to the given point > coordinates. > [...] > The points are building a line on the map
I'm not sure I understand your problem well but: If you want to find the points of the maps that are close to a line, You might considere the Cartesian equation of the line f(x, y) = 0 with f(x, y) = ax + by + c and search for the points of the map which abs(f(x, y)) value is low. From what I understand about your statement, you have a set of points = [ lineX, lineY] ; you might extract the (a, b, c) parameters of the line by linear regression, something like X = [x ; ones(x)]; A = y\X; (if the line is not vertical) then look at abs(A(1)*x - y + A(2)) < threshold or something like that. Otherwise, if you want to detect a line in a map, you might have a look at the Hough transform. Regards -- Christophe Dang Ngoc Chan Mechanical calculation engineer Public This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. _______________________________________________ users mailing list [email protected] http://lists.scilab.org/mailman/listinfo/users
