[Rtk-users] Geometric phantom example on wiki

[louie]

Dear RTK users,

In this example:
http://wiki.openrtk.org/index.php/RTK/Scripts/DrawGeometricPhantom

How can I get a cone phantom instead of a hyperboloid?
If I use the file on the wiki page and the default file and rtk application. I get a hyperboloid instead of a cone as the picture in the wiki.
Is there a way to change all the coefficients of the equations describing a quadric surface?

Best regards,
Louie
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