Hi,
You can read in the data from a text file with the "Add delimited text
layer" plugin. In your screenshot it seems like all symbols have the
same field of view and the same distance from the original point. So you
could create a fixed SVG symbol containing this pie angle (make sure it
actually starts from the center of the quadratic SVG viewbox) and then
you could draw the point symbols three times using data defined rotation
fields.
I don't see a big problem implementing such a graphical representation.
It would be more complex if distances and field of view were different
for each antenna.
Hope this helps?
Andreas
On Sat, 16 Jul 2011 16:14:48 +0530, Dr. Satyaprakash wrote:
Hi,
I am trying to draw arrows/ lines at specific angles. How to do the
same in QGIS?
I have the location of Mobile transmission towers. I also have the
angles in which the transponders are fixed. I would like to show the
direction of the transponders at each of the tower location. I am
attaching a snapshot.
The data would be something like,
Long, Lat, Dir1, Dir2, Dir3
88.42139816,26.70509683,20,120,280
Dir1, Dir2 and Dir3 are the angle in degrees from North in which the
transponders are oriented. Ideally I would like to plot something
like
as in the attached sample, however, even a arrow/ line in those
directions would do. QGIS should read the file, plot the location
using Lat and Long and then use the three directions to plot arrows/
lines.
Looking forward to your help.
Rgds,
Satyaprakash
--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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