|
@@ -5,8 +5,10 @@ to 3D. Height (z-coordinate) of 3D vector features can be specified
|
|
|
by <b>height</b> parameter as fixed value or by <b>column</b>
|
|
|
parameter.
|
|
|
|
|
|
-<p>Flag <b>-r</b> enables to perform reverse transformation, i.e.,
|
|
|
-transform 3D vector to 2D by omitting z-coordinate.
|
|
|
+<p>
|
|
|
+Flag <b>-r</b> enables to perform reverse transformation, i.e.,
|
|
|
+transform 3D vector to 2D by omitting z-coordinate. Height of input 3D
|
|
|
+features can be optionally stored in <b>column</b>.
|
|
|
|
|
|
<h2> NOTES</h2>
|
|
|
|
|
@@ -21,7 +23,7 @@ NULL values are silently converted to height 0.0.
|
|
|
# convert z-values from string to double
|
|
|
v.db.addcolumn map=geodetic_pts columns="Z_VALUE_D double precision"
|
|
|
v.db.update map=geodetic_pts column=Z_VALUE_D qcolumn=Z_VALUE
|
|
|
-v.db.select map=geodetic_pts columns=cat,Z_VALUE,Z_VALUE_
|
|
|
+v.db.select map=geodetic_pts columns=cat,Z_VALUE,Z_VALUE_D
|
|
|
|
|
|
# convert 2D vector point map to 3D based on attribute
|
|
|
v.to.3d input=geodetic_pts out=geodetic_pts_3d column=Z_VALUE_D
|
|
@@ -41,8 +43,9 @@ v.to.3d -rt input=elev_lid792_bepts output=elev_lid_2d
|
|
|
<a href="v.drape.html">v.drape</a>
|
|
|
</em>
|
|
|
|
|
|
-<h2>AUTHORS</h2>
|
|
|
+<h2>AUTHOR</h2>
|
|
|
|
|
|
-Martin Landa, CTU in Prague, Czech Republic
|
|
|
+Martin Landa, Czech Technical University in Prague, Czech Republic
|
|
|
|
|
|
-<p><i>Last changed: $Date$</i>
|
|
|
+<p>
|
|
|
+<i>Last changed: $Date$</i>
|