Hi Craig
One more bug with P:G:Gnuplot.
When I plot multiple data sets in 1 plot like this:
use PDL::Graphics::Gnuplot;
my $w = gpwin('x11');
my $a = ones(100);
my $b = ones(100) * 1.5;
my $c = ones(100) * 0.5
$w->plot(
{ with => 'lines'}, $a,
{ with => 'points', pointtype => 7}, $b,
{ with => 'lines'}, $c
);
I get this error from gnuplot saying "No pointtype specifier allowed
here" where the plot command generated is:
plot '-' using 0:1 notitle with lines, '-' using 0:1 notitle with points
pointtype 7, '-' using 0:1 notitle with lines pointtype 7
^^^^^^^
As you can see the 'pointtype' is being set even for 'lines' despite me
not having set it in the plot() command.
This is a bug ! Point-type is valid for 'linespoints' and 'points' only,
not for 'lines'. In fact, I think if I set it for one data series in the
plot() call it shouldn't carry over to the others following it.
When instead to avoid this problem I do { with => 'points pointtype 7' }
I get deprecated warnings related to complex 'with' statements.
Thanks
Vikas
On 08/19/2014 05:25 PM, Craig DeForest wrote:
> Very interesting. This looks to be a genuine non-exercised bug. I'll have a
> look at the emission code and get it fixed ASAP (and of course add a test
> case). I'm on travel at the moment so it may be a day or two.
>
> All the best,
> Craig
>
>
> On Aug 19, 2014, at 9:22 PM, Vikas N Kumar <vi...@cpan.org> wrote:
>
>> Hi Craig/Dima
>>
>> When using P::G::Gnuplot, I am getting an error with the size parameter.
>> Unfortunately the demo.pl in your source does not use this feature and I
>> am not sure if my gnuplot is the problem. I am using 4.4. I am also
>> using the latest P::G::Gnuplot from CPAN.
>>
>> The gnuplot ends up seeing "set size 1 0.7" instead of "set size 1,
>> 0.7". I have a fix by setting size => ["1, 0.7"] which is a string but
>> that is a hack. the "set origin" call seems to work fine and I couldn't
>> figure out by looking at the source why the "set size" was not working
>> right. I tried using the string "ratio" because it seemed like that was
>> another option but that failed to work as well.
>>
>> The code that I would like to use is below.
>>
>> my $w = gpwin('x11');
>> $w->multiplot(title => 'A multiplot');
>> $w->plot(
>> {
>> size => [1, 0.7], #### ["1, 0.7"] works
>> origin => [0, 0.3],
>> }
>> {with => 'financebars'},
>> sequence(100), # time - x-axis
>> sequence(100) * 1.001, # open
>> sequence(100) * 1.0015, # high
>> sequence(100) * 1.0005, # low
>> sequence(100) * 1.00125 #close
>> );
>> $w->plot(
>> {
>> size => [1, 0.3], ####["1, 0.3"] works
>> origin => [0, 0],
>> }
>> {with => 'impulses'},
>> sequence(100) * 1.01 # volume in 100000 units
>> );
>> $w->end_multi;
>>
>>
>>
>>
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>>
>
>
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