[Qgis-community-team] sec 8.2.1 - CRS automatically set by 1st loaded layer

[Otto Dassau]

thanks Carson! - I updated the manual again.

 Otto

On Tue, 20 Jan 2009 12:42:03 +0000
Carson Farmer <carson.farmer at gmail.com> wrote:

> Hi Otto,
> 
> A few more quick changes:
> 
> *The* global default CRS proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs 
> *comes* predefined *in QGIS,* but can *of course* be changed, *and the 
> new definition* will be saved for *subsequent* QGIS sessions.
> 
> If you want to define *the* coordinate reference system for a layer 
> *without CRS * information, you can
> do this in the General tab of the raster (6.3.4) or vector properties 
> (5.3.1) dialog. If your layer already has a CRS *defined*, it will be 
> displayed as shown in Figure 6.
> 
> 8.3 Define On The Fly (OTF) Projection
> 
> QGIS does not have OTF projection enabled *by* default*,* and *this 
> function* is currently only supported for vector layers. To use OTF 
> projection, ...
> 
> If you have already loaded a layer*,* and want to enable OTF projection, 
> *the best practice is to* open the
> Coordinate Reference System tab of the Project Properties dialog and 
> find the CRS of the
> *currently* loaded layer in the list of CRS*,* and activate the x Enable 
> on the fly projection checkbox.
> All *subsequently loaded* vector layers will then be ...
> 
> 1. Enable on the fly projection - this checkbox is used to enable or 
> disable OTF projection. When
>   off, [1] each layer is drawn using the coordinates as read from the 
> data source. When on, the
> coordinates ...
> 
> [1] several words deleted from here
> 
> ... The cartographic parameters used with proj.4 *are* described in the 
> user manual*, and* are the same as those ...
> 
> Figure 18 shows the dialog with an example CRS. [2] The parameters shown 
> were entered based on a
> knowledge of the CRS and the information found in OF90-284.
> 
> [2] in the pdf that you provided, there is no example CRS, is this an error?
> 
>