colin/fdtd-coremem
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Tune some rendering constants

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Colin
2020-09-05 14:44:26 -07:00
parent 08461267be
commit 861d7430e2
2 changed files with 5 additions and 4 deletions
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2
examples/em_reflection.rs
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@@ -30,7 +30,7 @@ fn main() {
loop { loop {
step += 1; step += 1;
let imp = if step < 50 { let imp = if step < 50 {
250000.0 * ((step as f64)*0.04*std::f64::consts::PI).sin() 30000.0 * ((step as f64)*0.04*std::f64::consts::PI).sin()
} else { } else {
0.0 0.0
}; };

7
src/render.rs
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@@ -64,7 +64,7 @@ impl SimStateRenderExt for SimState {
for x in 0..w { for x in 0..w {
let cell = self.get(x as usize, y as usize); let cell = self.get(x as usize, y as usize);
let r = scale_signed_to_u8(cell.mat().mz(), 100.0); let r = scale_signed_to_u8(cell.mat().mz(), 100.0);
let b = scale_unsigned_to_u8(cell.mat().conductivity(), 10.0); let b = scale_unsigned_to_u8(cell.mat().conductivity(), 3.0);
let g = scale_signed_to_u8(cell.bz(), 1.0e-4); let g = scale_signed_to_u8(cell.bz(), 1.0e-4);
image.put_pixel(x, y, Rgb([r, g, b])); image.put_pixel(x, y, Rgb([r, g, b]));
} }
@@ -73,8 +73,9 @@ impl SimStateRenderExt for SimState {
for y in 0..h { for y in 0..h {
for x in 0..w { for x in 0..w {
if x % evec_spacing == 0 && y % evec_spacing == 0 { if x % evec_spacing == 0 && y % evec_spacing == 0 {
let norm_vec = scale_vector(self.e_vector(x, y, evec_spacing), 100.0); let evec = self.e_vector(x, y, evec_spacing);
let alpha = norm_vec.mag_sq().powf(0.33); let norm_vec = scale_vector(evec, 100.0);
let alpha = scale_unsigned(evec.mag_sq(), 500.0);
let vec = norm_vec * (evec_spacing as f64); let vec = norm_vec * (evec_spacing as f64);
let center = Point::new(x as _, y as _) + Point::new(evec_spacing as _, evec_spacing as _)*0.5; let center = Point::new(x as _, y as _) + Point::new(evec_spacing as _, evec_spacing as _)*0.5;
image.draw_field_arrow(center, vec, Rgb([0xff, 0xff, 0xff]), alpha as f32); image.draw_field_arrow(center, vec, Rgb([0xff, 0xff, 0xff]), alpha as f32);