From eb5c2ff415babbea899436af6239a4179815c60e Mon Sep 17 00:00:00 2001
From: aml
Date: Wed, 9 Mar 2016 07:33:44 +0300
Subject: [PATCH] 0027229: Extema documentation is out of date.
Extrema documentation updated to be up to date.
---
dox/user_guides/modeling_data/modeling_data.md | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
diff --git a/dox/user_guides/modeling_data/modeling_data.md b/dox/user_guides/modeling_data/modeling_data.md
index f9ee0a1bb2..d1b7e17997 100644
--- a/dox/user_guides/modeling_data/modeling_data.md
+++ b/dox/user_guides/modeling_data/modeling_data.md
@@ -406,19 +406,27 @@ These packages calculate the extrema of distance between:
- a curve and a surface,
- two surfaces.
-### Extrema between Curves
+### Extrema between Point and Curve / Surface
+
+The *GeomAPI_ProjectPointOnCurve* class allows calculation of all extrema between a point and a curve. Extrema are the lengths of the segments orthogonal to the curve.
+The *GeomAPI_ProjectPointOnSurface* class allows calculation of all extrema between a point and a surface. Extrema are the lengths of the segments orthogonal to the surface.
+These classes use the "Projection" criteria for optimization.
-The *Geom2dAPI_ExtremaCurveCurve* class allows calculation of all extrema between two 2D geometric curves. Extrema are the lengths of the segments orthogonal to two curves.
+### Extrema between Curves
-The *GeomAPI_ExtremaCurveCurve* class allows calculation of all extrema between two 3D geometric curves. Extrema are the lengths of the segments orthogonal to two curves.
+The *Geom2dAPI_ExtremaCurveCurve* class allows calculation of all minimal distances between two 2D geometric curves.
+The *GeomAPI_ExtremaCurveCurve* class allows calculation of all minimal distances two 3D geometric curves.
+These classes use Euclidean distance as the criteria for optimization.
### Extrema between Curve and Surface
-The *GeomAPI_ExtremaCurveSurface* class allows calculation of all extrema between a 3D curve and a surface. Extrema are the lengths of the segments orthogonal to the curve and the surface.
+The *GeomAPI_ExtremaCurveSurface* class allows calculation of one extrema between a 3D curve and a surface. Extrema are the lengths of the segments orthogonal to the curve and the surface.
+This class use the "Projection" criteria for optimization.
### Extrema between Surfaces
-The *GeomAPI_ExtremaSurfaceSurface* class allows calculation of all extrema between two surfaces. Extrema are the lengths of the segments orthogonal to two surfaces.
+The *GeomAPI_ExtremaSurfaceSurface* class allows calculation of one minimal and one maximal distance between two surfaces.
+This class use Euclidean distance to compute minimum and "Projection" criteria to compute maximum.
@section occt_modat_2 2D Geometry
--
2.20.1