static void
gtk_plot_surface_real_draw (GtkPlotSurface *surface)
{
GtkWidget *widget;
GtkPlot *plot = NULL;
GtkPlotData *dataset;
GList *list;
g_return_if_fail(GTK_IS_PLOT_SURFACE(surface));
dataset = GTK_PLOT_DATA(surface);
g_return_if_fail(GTK_PLOT_DATA(dataset)->plot != NULL);
g_return_if_fail(GTK_IS_PLOT(GTK_PLOT_DATA(dataset)->plot));
plot = dataset->plot;
widget = GTK_WIDGET(plot);
gtk_plot_pc_gsave(plot->pc);
if(!GTK_WIDGET_DRAWABLE(widget)) return;
if(!GTK_WIDGET_VISIBLE(widget)) return;
gtk_plot_set_line_attributes(plot, surface->mesh_line);
list = surface->dt->triangles;
while(list){
GtkPlotDTtriangle *t;
t = (GtkPlotDTtriangle *)list->data;
GTK_PLOT_SURFACE_CLASS(GTK_OBJECT(surface)->klass)->draw_triangle(surface, t, -1.);
list = list->next;
}
gtk_plot_pc_grestore(plot->pc);
}
static void
gtk_plot_polar_draw_grids(GtkPlotPolar *polar)
{
GtkWidget *widget;
GtkPlot *plot;
gdouble ix, iy;
gdouble x1, y1, x2, y2;
gdouble width, height, size;
gdouble xp, yp;
gint ntick;
gdouble ox, oy;
gdouble rotation;
widget = GTK_WIDGET(polar);
plot = GTK_PLOT(polar);
rotation = polar->rotation;
xp = plot->internal_allocation.x;
yp = plot->internal_allocation.y;
width = plot->internal_allocation.width;
height = plot->internal_allocation.height;
ox = xp + width / 2.;
oy = yp + height / 2.;
size = MIN(width, height) / 2.;
if(plot->bottom->show_minor_grid)
{
for(ntick = 0; ntick < plot->bottom->ticks.nticks; ntick++){
if(!plot->bottom->ticks.values[ntick].minor) continue;
if(plot->bottom->ticks.values[ntick].value >= plot->bottom->ticks.min){
gtk_plot_get_pixel(plot,
plot->ymax,
plot->bottom->ticks.values[ntick].value,
&x1, &y1);
gtk_plot_get_pixel(plot,
plot->ymin,
plot->bottom->ticks.values[ntick].value,
&x2, &y2);
gtk_plot_draw_line(plot, plot->bottom->minor_grid,
x1, y1, x2, y2);
}
}
}
if(plot->bottom->show_major_grid)
{
for(ntick = 0; ntick < plot->bottom->ticks.nticks; ntick++){
if(plot->bottom->ticks.values[ntick].minor) continue;
if(plot->bottom->ticks.values[ntick].value >= plot->bottom->ticks.min){
gtk_plot_get_pixel(plot,
plot->ymax,
plot->bottom->ticks.values[ntick].value,
&x1, &y1);
gtk_plot_get_pixel(plot,
plot->ymin,
plot->bottom->ticks.values[ntick].value,
&x2, &y2);
gtk_plot_draw_line(plot, plot->bottom->major_grid,
x1, y1, x2, y2);
}
}
}
if(plot->left->show_minor_grid)
{
gtk_plot_set_line_attributes(plot, plot->left->minor_grid);
for(ntick = 0; ntick < plot->left->ticks.nticks; ntick++){
if(!plot->left->ticks.values[ntick].minor) continue;
if(plot->left->ticks.values[ntick].value >= plot->left->ticks.min){
gtk_plot_get_pixel(plot,
plot->left->ticks.values[ntick].value,
90.0 - rotation,
&ix, &iy);
iy = fabs(oy - iy);
gtk_plot_pc_draw_circle (plot->pc,
FALSE,
ox, oy,
2 * iy);
}
}
}
if(plot->left->show_major_grid)
{
gtk_plot_set_line_attributes(plot, plot->left->major_grid);
for(ntick = 0; ntick < plot->left->ticks.nticks; ntick++){
if(plot->left->ticks.values[ntick].minor) continue;
if(plot->left->ticks.values[ntick].value >= plot->left->ticks.min){
gtk_plot_get_pixel(plot,
plot->left->ticks.values[ntick].value,
90.0 - rotation,
&ix, &iy);
iy = fabs(oy - iy);
gtk_plot_pc_draw_circle (plot->pc,
FALSE,
ox, oy,
2 * iy);
}
}
}
}
