Re: Arbitrary rotation of symbols?

You can rotate rectangles but afaik that's the only symbol you can 
rotate. For other cases I'm afraid you'll have to create a custom symbol.

But I still don't get it. At the end isn't something of this kind that 
you want?

http://gmt.soest.hawaii.edu/projects/gmt/repository/changes/trunk/test/psxy/geovector.ps

so you can put a geovector at the end of your digitized line, no?

> Thanks, but I was asking if it is possible to rotate a triangle symbol in
> psxy, or by some other method. The paths for my vectors have already been
> digitized by hand. I want insert rotated arrowheads at their endpoints.
>
> ~ Eric.
>
> On Thu, Jul 17, 2014 Joaquim Luis wrote:
>> We have curved vectors now on 5 (don't remember the details without
>> consulting the manual). See for example
>>
>> http://gmt.soest.hawaii.edu/doc/5.1.1/_images/example_30.png
>>
>>> I have generated a shapefile of glacial lineations using a GIS, and have
>>> successfully converted the line shapefile to GMT format using OGR. The
>>> lineations plot fine in GMT.
>>>
>>> These features are similar to vectors, in the sense that they illustrate
>>> direction of flow, but they are different in that they are not described by a
>>> length and azimuth as vectors are using -Sv; they curved lines. I want to show
>>> the direction of flow by placing a triangle at the last x,y coordinate in the
>>> line segment, but is it possible to rotate a triangle symbol so that the
>>> triangle head is oriented correctly with respect to the trend of the line?
>>>
>>> This is basically the same issue described in
>>> https://listserv.hawaii.edu/cgi-bin/wa?A2=ind0801&L=GMT-HELP&P=R52411&1=GMT-HELP&9=A&I=-3&J=on&d=No+Match%3BMatch%3BMatches&z=4
>>>
>>> but I'm not sure if the functionality has been added in the intervening 6
>>> years. The psxy manual doesn't seem to indicate that there is, but I thought I
>>> would ask anyway.
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Mailing list for GMT discussions of all kinds.  If you are not sure you have found a bug, discuss it here first.
To formally report bugs or request features, please register and add New Issue on gmt.soest.hawaii.edu
To unsubscribe, send the message "signoff gmt-help" to [email protected]
Note: gmt-help will become obsolete on Sept 1, 2014 - please use forum on gmt.soest.hawaii.edu instead.