From f7970f9b769369220ed3c607a27081b8ea93e409 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Sat, 1 Mar 2025 18:53:29 -0500
Subject: add pressure ratio output

---
 ui.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'ui.c')

diff --git a/ui.c b/ui.c
index 0aeaae8..b8d959d 100644
--- a/ui.c
+++ b/ui.c
@@ -60,7 +60,9 @@ static void init_ve(UI *ui);
 static void init_comp_efficiency(UI *ui);
 static void init_intercooler_efficiency(UI *ui);
 static void init_intercooler_deltap(UI *ui);
+static void init_pressure_ratio(UI *ui);
 static void init_volume_flow_rate(UI *ui);
+static void compute_pressure_ratio(UI *ui, int idx);
 static void compute_volume_flow_rate(UI *ui, int idx);
 
 
@@ -80,6 +82,7 @@ init_ui(UI *ui) {
 	init_intercooler_efficiency(ui);
 	init_intercooler_deltap(ui);
 
+	init_pressure_ratio(ui);
 	init_volume_flow_rate(ui);
 
 	compute(ui, 0);
@@ -187,6 +190,11 @@ init_intercooler_deltap(UI *ui) {
 	set_intercooler_deltap(ui, 0);
 }
 
+static void
+init_pressure_ratio(UI *ui) {
+	w_init_number(ui->pressure_ratio[0]);
+}
+
 static void
 init_volume_flow_rate(UI *ui) {
 	w_init_select(&ui->volume_flow_rate_unit, nelem(volume_flow_rate_units), volume_flow_rate_units);
@@ -360,6 +368,7 @@ set_intercooler_deltap_unit(UI *ui) {
 
 void
 compute(UI *ui, int idx) {
+	compute_pressure_ratio(ui, idx);
 	compute_volume_flow_rate(ui, idx);
 }
 
@@ -372,6 +381,14 @@ compute_all(UI *ui) {
 	}
 }
 
+static void
+compute_pressure_ratio(UI *ui, int idx) {
+	double pr;
+
+	pr = pressure_ratio(&ui->points[idx]);
+	w_set_number(ui->pressure_ratio[idx], pr);
+}
+
 static void
 compute_volume_flow_rate(UI *ui, int idx) {
 	int unit_idx;
@@ -404,6 +421,7 @@ insert_point(UI *ui, int idx) {
 		memmove(&ui->intercooler_efficiency[i], &ui->intercooler_efficiency[i-1], sizeof(ui->intercooler_efficiency[i-1]));
 		memmove(&ui->intercooler_deltap[i], &ui->intercooler_deltap[i-1], sizeof(ui->intercooler_deltap[i-1]));
 
+		memmove(&ui->pressure_ratio[i], &ui->pressure_ratio[i-1], sizeof(ui->pressure_ratio[i-1]));
 		memmove(&ui->volume_flow_rate[i], &ui->volume_flow_rate[i-1], sizeof(ui->volume_flow_rate[i-1]));
 	}
 	ui->npoints++;
@@ -425,6 +443,7 @@ remove_point(UI *ui, int idx) {
 		memmove(&ui->intercooler_efficiency[idx], &ui->intercooler_efficiency[idx+1], sizeof(ui->intercooler_efficiency[idx]));
 		memmove(&ui->intercooler_deltap[idx], &ui->intercooler_deltap[idx+1], sizeof(ui->intercooler_deltap[idx]));
 
+		memmove(&ui->pressure_ratio[idx], &ui->pressure_ratio[idx+1], sizeof(ui->pressure_ratio[idx]));
 		memmove(&ui->volume_flow_rate[idx], &ui->volume_flow_rate[idx+1], sizeof(ui->volume_flow_rate[idx]));
 	}
 	ui->npoints--;
-- 
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