Smoke/isolines.c


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#ifdef G_OS_WIN32
#define WIN32_LEAN_AND_MEAN 1
#include <windows.h>
#endif


#include <rfftw.h>

#include "funcs.h"
#include "palette.h"

#include "isolines.h"


static int isolines_render     = FALSE;
static int isolines_num_colors = PALETTE_MAXCOLORS;
static int isolines_colormap   = PALETTE_RED;

static float isolines_alpha = 1.0f;
static fftw_real *isolines_frame;
static float isolines_threshold_min = 0.2f;
static float isolines_threshold_max = 2.0f;
static int   isolines_nr = 1;

void isolines_set_render(int render_isolines)
{
  isolines_render = render_isolines;
}

int isolines_get_render(void)
{
  return isolines_render;
}

void isolines_set_num_colors(int num_colors)
{
  isolines_num_colors = num_colors;
}

int isolines_get_num_colors(void)
{
  return isolines_num_colors;
}

void isolines_set_colormap(int colormap)
{
  isolines_colormap = colormap;
}

int isolines_get_colormap(void)
{
  return isolines_colormap;
}

void isolines_set_alpha(float alpha)
{
  isolines_alpha = alpha;
}

float isolines_get_alpha(void)
{
  return isolines_alpha;
}

void isolines_set_frame(fftw_real *frame)
{
  isolines_frame = frame;
}

fftw_real *isolines_get_frame(void)
{
  return isolines_frame;
}


struct color4f isolines_get_color(float value)
{
  struct color4f return_value;

  return_value = set_palette(isolines_colormap, value, isolines_num_colors);
  return_value.a = isolines_alpha;

  return return_value;
}


void isolines_set_nr(int nr)
{
  isolines_nr = nr;
}

int isolines_get_nr(void)
{
  return isolines_nr;
}


void isolines_set_threshold_min(float threshold_min)
{
  isolines_threshold_min = threshold_min;
}

float isolines_get_threshold_min(void)
{
  return isolines_threshold_min;
}


void isolines_set_threshold_max(float threshold_max)
{
  isolines_threshold_max = threshold_max;
}

float isolines_get_threshold_max(void)
{
  return isolines_threshold_max;
}