[Plplot-general] wxWidgets driver -- change the default black background

[Pedro V. <ped...@sp...>]

Hi


I am trying to change the default black background color using the wxWidgets driver

If using the SVG driver this can be done as explained here

https://sourceforge.net/p/plplot/mailman/message/2817799/

the trick being calling

plscolbg()

before 

plinit();

like the  sample code below marked "SVG Driver" does 


However for the wxWidegts driver , it seems we do not do a call to

plinit();

but rather this is done inside the C++ stream initialization

>From the wxWidgets PLplot sample below 

the 

plinit();

is made inside


frame->Create(NULL, wxID_ANY, wxT("wxPLplot"));


so I don't find a way to call the plscolbg() function before


How can this be accomplished ?




I also tried to modify the default colors of the default palette

cmap0_default.pal

16
#000000

so that the first is white

this does work *but* only after the window is redrawn (it first shows the default red on black);
this seems like a bug to me


Also, what's the call to increase the font size? 
On the wxWidgets driver the font looks tiny

Thanks !

Sample code wxWidgets

bool wxAppPlot::OnInit()

{

wxPLplotwindow<wxFrame> *frame = new wxPLplotwindow<wxFrame>();

frame->Create(NULL, wxID_ANY, wxT("wxPLplot"));

frame->Show();

Plot(frame);

return true;

}

/////////////////////////////////////////////////////////////////////////////////////////////////////

//Plot

/////////////////////////////////////////////////////////////////////////////////////////////////////

template< class WXWINDOW >

void Plot(wxPLplotwindow<WXWINDOW> *plotwindow)

{

wxPLplotstream* pls = plotwindow->GetStream();

//render

plotwindow->RenewPlot();

}



Sample code SVG driver 
void atms_dwell_granu_t::plot()

{

//set SVG device and output file name

plsdev("svg");

plsfnam("atms_dwell_granu.svg");

//set background color (0) to white RGB(255,255,255)

//must be called before plinit()

plscolbg(255, 255, 255);

//initialize plplot

plinit();

//change color (0) to black RGB(0, 0, 0)

//must be called after plinit()

plscol0(0, 0, 0, 0);

/////////////////////////////////////////////////////////////////////////////////////////////////////

//render

/////////////////////////////////////////////////////////////////////////////////////////////////////

PLFLT xmin, xmax, ymin, ymax;

PLFLT *x, *y;

const int NSIZE = iOrbit_all;

xmin = 0;

xmax = NSIZE;

ymin = -1.0;

ymax = 6.0;

x = new PLFLT[NSIZE];

y = new PLFLT[NSIZE];

plcol0(0);

plenv(xmin, xmax, ymin, ymax, 0, 0);

pllab("", "Current (Amps)", "Scan Drive Main Motor Current");

//time axis

for (int idx_orb = 0; idx_orb < NSIZE; idx_orb++)

{

x[idx_orb] = idx_orb;

}

//mean

for (int idx_orb = 0; idx_orb < NSIZE; idx_orb++)

{

y[idx_orb] = DWELL_SAMPLE_APID517_Orbit[0][TLM_NUM_ORBIT - 1][idx_orb];

}

plpoin(NSIZE, x, y, 46);

plend();

delete[] x;

delete[] y;

}