m.transform/i.ortho.transform: update manuals

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@72364 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.ortho.photo/i.ortho.transform/i.ortho.transform.html

@@ -3,50 +3,25 @@
 <em>i.ortho.transform</em> is an utility to compute transformation
 based upon GCPs and output error measurements.
 
+<p>
+If coordinates are given with the <b>input</b> file option or fed from 
+<tt>stdin</tt>, both the input and the output format is "x y z" with one 
+coordinate pair per line. Reverse transform is performed with the 
+<b>-r</b> flag.
 
-<h2>NOTES</h2>
-
-For coordinates given with the <b>coords</b> file option or fed from
-<tt>stdin</tt>, the input format is "x y z" with one coordinate pair per
-line.
+<p>
+The <b>format</b> option determines how control points are printed out. 
+A summary on the control points can be printed with the <b>-s</b> flag. 
+The summary includes maximum deviation observed when transforming GCPs 
+and overall RMS. The <b>format</b> option is ignored when coordinates 
+are given with the <b>input</b> file option.
 
-<p>The transformations are:
-<p>order=1:
-<div class="code"><pre>
-    e = [E0 E1][1].[1]
-        [E2  0][e] [n]
-   
-    n = [N0 N1][1].[1]
-        [N2  0][e] [n]
-</pre></div>
 
-order=2:
-<div class="code"><pre>
-    e = [E0 E1 E3][1 ] [1 ]
-        [E2 E4  0][e ].[n ]
-        [E5  0  0][e&sup2;] [n&sup2;]
-   
-    n = [N0 N1 N3][1 ] [1 ]
-        [N2 N4  0][e ].[n ]
-        [N5  0  0][e&sup2;] [n&sup2;]
-</pre></div>
-
-order=3:
-<div class="code"><pre>
-    e = [E0 E1 E3 E6][1 ] [1 ]
-        [E2 E4 E7  0][e ].[n ]
-        [E5 E8  0  0][e&sup2;] [n&sup2;]
-        [E9  0  0  0][e&sup3;] [n&sup3;]
-   
-    n = [N0 N1 N3 N6][1 ] [1 ]
-        [N2 N4 N7  0][e ].[n ]
-        [N5 N8  0  0][e&sup2;] [n&sup2;]
-        [N9  0  0  0][e&sup3;] [n&sup3;]
-</pre></div>
+<h2>NOTES</h2>
 
-["." = dot-product, (AE).N = N'EA.]
-<p>In other words, order=1 and order=2 are equivalent to order=3 with
-the higher coefficients equal to zero.
+Ortho-transformation is a 2-step transformation. First, source 
+coordinates are transformed to sensor coordinates, then sensor 
+coordinates are transformed to target coordinates. 
 
 
 <h2>SEE ALSO</h2>

misc/m.transform/m.transform.html

@@ -3,14 +3,23 @@
 <em>m.transform</em> is an utility to compute transformation
 based upon GCPs and output error measurements.
 
+<p>
+If coordinates are given with the <b>input</b> file option or fed from 
+<tt>stdin</tt>, both the input and the output format is "x y" with one 
+coordinate pair per line. Reverse transform is performed with the 
+<b>-r</b> flag.
+
+<p>
+The <b>format</b> option determines how control points are printed out. 
+A summary on the control points can be printed with the <b>-s</b> flag. 
+The summary includes maximum deviation observed when transforming GCPs 
+and overall RMS. The <b>format</b> option is ignored when coordinates 
+are given with the <b>input</b> file option.
 
-<h2>NOTES</h2>
 
-For coordinates given with the <b>input</b> file option or fed from
-<tt>stdin</tt>, the input format is "x y" with one coordinate pair per
-line.
+<h2>NOTES</h2>
 
-<p>The transformations are:
+The transformations are:
 <p>order=1:
 <div class="code"><pre>
     e = [E0 E1][1].[1]