// Last edited on 2012-09-29 05:30:29 by stolfilocal
// General parameters for all subfigs and flows.

// Flow sampling circle:
#declare sample_circle_R = 0.04;  // Radius of sampling circle.
#declare sample_circle_N = 12;    // Number of particles in sampling circle.
#declare sample_circle_rgb = < 1.000, 0.200, 0.300 >;
#declare sample_circle_tx = 
  texture{
    pigment{ color rgb sample_circle_rgb }
    finish{ diffuse 0.3 ambient 0.7 specular 0 }
  }

// Particles:
#declare particle_rgb = < 0.200, 0.900, 1.000 >;
#declare particle_tx = 
  texture{
    pigment{ color rgb particle_rgb }
    finish{ diffuse 1.0 ambient 0.0 specular 0 }
  }

// Reference particle:
#declare particle_center_rgb = < 0.000, 0.300, 1.000 >;
#declare particle_center_tx = 
  texture{
    pigment{ color rgb particle_center_rgb }
    finish{ diffuse 1.0 ambient 0.0 specular 0 }
  }

// Pathlines:
#declare pathline_rgb = < 0.200, 0.450, 0.600 >;
#declare pathline_tx = 
  texture{
    pigment{ color rgb pathline_rgb }
    finish{ diffuse 0.3 ambient 0.7 specular 0 }
  }

// Arrows on ring of particles:
#declare arrow_ring_rgb = 0.750*particle_rgb;
#declare arrow_ring_tx = 
  texture{
    pigment{ color rgb arrow_ring_rgb }
    finish{ diffuse 0.3 ambient 0.7 specular 0 }
  }

// Arrow on reference particle:
#declare arrow_center_rgb = 0.750*particle_center_rgb;
#declare arrow_center_tx = 
  texture{
    pigment{ color rgb arrow_center_rgb }
    finish{ diffuse 0.3 ambient 0.7 specular 0 }
  }