diff options
| -rw-r--r-- | html/gen_parms.html | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/html/gen_parms.html b/html/gen_parms.html index 95e38983..045eecf6 100644 --- a/html/gen_parms.html +++ b/html/gen_parms.html @@ -13,6 +13,13 @@ projection types. Some of these can be found in the GeoTIFF Transform List</a>. The definitative documentation for most parameters is Gerald's original documentation available from the main PROJ.4 page. <p> +<h2><a name="false_easting_northing">False Easting/Northing</a></h2> + +Virtually all coordinate systems allow for the presence of a false easting +(+x_0) and northing (+y_0). Note that these values are always expressed in +meters even if the coordinate system is some other units. Some coordinate +systems (such as UTM) have implicit false easting and northing values.<p> + <h2><a name="towgs84">towgs84 - Datum transformation to WGS84</a></h2> Datum shifts can be approximated by 3 parameter spatial translations (in @@ -83,3 +90,10 @@ Seven parameter transformation (translation, rotation and scaling): </body> </html> + + + + + + + |