The 1.8 is approx. sqrt(1.5**2 + 1**2), i.e. half-diagonal in normalised coordinates. And half-height is 12mm, and this is the factor between normalised coordinates and real-world coordinates since half-height is 1 in normalised coordinates by definition. Thus, the half-diagonal of the sensor is approx. 1.8*12mm. AT the same time, this is the maximal radius, so it is senseful to use 0..1.8*12 for the x axis.
You can use the identity cos(arcsin(x)) = sqrt(1 - x**2) ------------------------------------------------------------------------------ Put Bad Developers to Shame Dominate Development with Jenkins Continuous Integration Continuously Automate Build, Test & Deployment Start a new project now. Try Jenkins in the cloud. http://p.sf.net/sfu/13600_Cloudbees _______________________________________________ Lensfun-users mailing list Lensfun-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lensfun-users
