On 27/09/2013 21:01, Bert Gunter wrote:
On Fri, Sep 27, 2013 at 12:44 PM, Sarah Goslee sarah.gos...@gmail.com wrote:
It's a straightforward trigonometry problem, isn't it?
Indeed! ( (r,theta) to (x,y) coordinates ) . So I wonder if this is
a homework problem. If so, the OP should note that
Hi Jim, vectorField worked a treat - thanks!
On 28 September 2013 01:57, Jim Lemon j...@bitwrit.com.au wrote:
On 09/28/2013 04:56 AM, Conor Ryan wrote:
I am trying to plot points on a map for each ship locations (lat/long),
where
each point is a line whose angle (degrees) denotes ships
Certainly not a homework question. Elementary questions do not necessarily
indicate that one is a student! Always learning...
Dr Conor Ryan
On 28 September 2013 11:39, Patrick Burns pbu...@pburns.seanet.com wrote:
On 27/09/2013 21:01, Bert Gunter wrote:
On Fri, Sep 27, 2013 at 12:44 PM,
Hi Greg, thanks for your help. I found vectorFields, as suggested by Jim
Lemon, in plotrix to be slightly easier (given my relatively basic R
language knowledge!). Kind Regards, Conor
On 27 September 2013 22:07, Greg Snow 538...@gmail.com wrote:
The ms.arrows along with my.symbols in the
I am trying to plot points on a map for each ship locations (lat/long),
where
each point is a line whose angle (degrees) denotes ships heading and whose
line length denotes it's speed. Unfortunately arrows(); p.arrows (sfsmisc)
and ms.arrows (TeachingDemos) require start and end coordinates but I
It's a straightforward trigonometry problem, isn't it?
On Fri, Sep 27, 2013 at 2:56 PM, Conor Ryan miol...@gmail.com wrote:
I am trying to plot points on a map for each ship locations (lat/long),
where
each point is a line whose angle (degrees) denotes ships heading and whose
line length
On Fri, Sep 27, 2013 at 12:44 PM, Sarah Goslee sarah.gos...@gmail.com wrote:
It's a straightforward trigonometry problem, isn't it?
Indeed! ( (r,theta) to (x,y) coordinates ) . So I wonder if this is
a homework problem. If so, the OP should note that we try not to do
homework here.
Cheers,
The ms.arrows along with my.symbols in the TeachingDemos package does not
require start and end points, it takes a single point along with the angle
and length (and the length can be a single constant to have all the arrows
the same length, or a variable to have different lengths). You can also
On 09/28/2013 04:56 AM, Conor Ryan wrote:
I am trying to plot points on a map for each ship locations (lat/long),
where
each point is a line whose angle (degrees) denotes ships heading and whose
line length denotes it's speed. Unfortunately arrows(); p.arrows (sfsmisc)
and ms.arrows
9 matches
Mail list logo
