PtTrend: Getting trend line to be a line?

QNX Newsgroups (Archives) qdn.public.qnx4.photon
1

I have been unable to get the trend line of PtTrend to draw as a single
line, rather than a filled area. At the moment if i am plotting a sine wave,
the area between the peak and the zero is painted in. I have tried to set
the appropriate flags from code with no success. Can someone out there show
me how to do this? The picture given in QNX help has single line trend
plots.

alistair@student.usyd.edu.au

any help appreciated.

2

Hello Alistair

Just to confirm, are you using an RtTrend or a PtTrend. Also which
version of Photon and QNX are you using?

Thanks
Rodney

Alistair Crawford <alistair@student.usyd.edu.au> wrote:

I have been unable to get the trend line of PtTrend to draw as a single
line, rather than a filled area. At the moment if i am plotting a sine wave,
the area between the peak and the zero is painted in. I have tried to set
the appropriate flags from code with no success. Can someone out there show
me how to do this? The picture given in QNX help has single line trend
plots.

alistair@student.usyd.edu.au

any help appreciated.