Hi Szymon,
I think that the arrow heads are being drawn but are too small. The algorithm makes a choice on the length scale for the vectors and that includes the size of the arrow heads, but for this case the default scale isn't a good one. In your example, the length scale that's used is 20. Try your curvilinear plot with a smaller value, say VECTOR/LENGTH=10, or VECTOR/LENGTH=5
I've attached an example I tried, where the plot that used a setting of /LENGTH=1 had very small arrow heads, and /LENGTH=0.5 draws larger ones.
Ansley
On 10/6/2010 9:06 AM, Szymon Roziewski wrote:
Hi there,
It's an odd issue when I draw vectors (wind data) on curvilinear grid the arrow-heads are missing.
Everything is correct when I draw in rectilinear coordinates.
I attach files.
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Best regards,
Szymon Roziewski
Attachment:
umwind.gif
Description: GIF image