Both layers continue to the west (I am using the spearfish mapset and that
should be correct, or? You should also be able to reproduce this effect).
I also tried a little experiment and rezised the X display; this also seem
to cut the roads to the west! See http://www3.norgit.no/apnee/tcl2.png
I have no idea what is happening, but it seems to that d.area and d.vect
uses different cutting functions or are invoked with different coordinates.
I have tried to look in the source, and I see that d.vect has a plot2()
function that is missing from d.area. Might this have something to do with
my problem?
FYI: There is no more map data to the east, thats way it is not cut off, I
have tried this with some of my own mapsets and GRASS happily cuts to both
east and west, but never to the north and south.
FYI2: I am using Grass 5.0 beta 10
Per Henrik
--
Per Henrik Johansen
Norgit AS, http://www.norgit.no
-----Original Message-----
From: Eric G . Miller [mailto:egm2@jps.net]
Sent: Saturday, February 03, 2001 3:25 AM
To: 'GRASSLIST@baylor.edu'
Subject: [GRASSLIST:1417] Re: REPOST: d.vect cutting algorithm?
On Fri, Feb 02, 2001 at 10:00:40AM +0100, Johansen Per Henrik wrote:
Grasslist,
I tried to send this request some days ago but it seems that it never
reached the list. I apologize if this request should reach you twice.I am having some difficulties when trying to join several vector layers
into
a raster file; GRASS will not draw vectors (polygons work fine) at the n
leftmost and/or n rightmost pixels of the image.I use the d.area command to draw polygons and d.vect to draw lines. d.vect
seems to cut off lines that stretches beyond the edge of the image. Is
this
a known problem or am I missing out on something?
An image that illustrate my point (roads and streams near the left edge is
cut off) might be found at:http://www3.norgit.no/apnee/D_cell.png
It is generated with the following GRASS commands:
g.region n=4928226 s=4911624 e=612344 w=593807
d.mon start=CELL
d.mon select=CELL
d.area map=fields fillcolor=green linecolor=black
d.vect map=roads color=red
d.vect map=streams color=blue
d.mon stop=CELL
g.region raster=D_cell
r.out.png D_cellI have also tried to use tcl/tk interface to generate the same image/map.
Here everything seems to work fine, see
http://www3.norgit.no/apnee/tcl.png
Anyone know what I am experiencing here?
You sure your vector layers (other than fields) continue to the west?
The D_cell version obviously contains more real estate on the west side
than the X monitor version. The X monitor version draws the roads about
to where they "cut off" in the D_cell version. So maybe the CELL driver
is drawing more than you want?
--
Eric G. Miller <egm2@jps.net>