From 4ad1dc4b84b408ae585f5553fc4e78da7c95e530 Mon Sep 17 00:00:00 2001 From: Yuval Tassa Date: Fri, 9 Feb 2024 09:21:41 -0800 Subject: [PATCH] Mention the roles of "center" and "extent" in visual/global/{azimuth,elevation}. Fixes #1407. PiperOrigin-RevId: 605649532 Change-Id: I0ca0142a3c164a502fefb6b91d204c4bb3d25a95 --- doc/XMLreference.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/doc/XMLreference.rst b/doc/XMLreference.rst index e1e2bc8c..eeb855d2 100644 --- a/doc/XMLreference.rst +++ b/doc/XMLreference.rst @@ -671,14 +671,18 @@ is effectively a miscellaneous subsection. :at:`azimuth`: :at-val:`real, "90"` This attribute specifies the initial azimuth of the free camera around the vertical z-axis, in degrees. A value of 0 corresponds to looking in the positive x direction, while the default value of 90 corresponds to looking in the - positive y direction. + positive y direction. The look-at point itself is specified by the :ref:`statistic/center` + attribute, while the distance from the look-at point is controlled by the :ref:`statistic/extent` + attribute. .. _visual-global-elevation: :at:`elevation`: :at-val:`real, "-45"` This attribute specifies the initial elevation of the free camera with respect to the lookat point. Note that since this is a rotation around a vector parallel to the camera's X-axis (right in pixel space), *negative* numbers - correspond to moving the camera *up* from the horizontal plane, and vice-versa. + correspond to moving the camera *up* from the horizontal plane, and vice-versa. The look-at point itself is specified + by the :ref:`statistic/center` attribute, while the distance from the look-at point is controlled + by the :ref:`statistic/extent` attribute. .. _visual-global-linewidth: