New closure equation for water depth

Author: niccolotubini

src/main/java/it/geoframe/blogspot/closureequation/closureequation/WaterDepth.java

@@ -0,0 +1,104 @@
+/*
+ * GNU GPL v3 License
+ *
+ * Copyright 2019 Niccolo` Tubini
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+/**
+ * 
+ */
+package it.geoframe.blogspot.closureequation.closureequation;
+
+
+
+/**
+ * @author Niccolo` Tubini
+ *
+ * Van Genuchten SWRC
+ */
+public class WaterDepth extends ClosureEquation {
+
+
+	@Override
+	public double f(double x, double y, int id) {
+
+		if(x>0.0) {
+			return x;
+		} else {
+			return 0;
+		}
+		
+	}
+
+
+
+	@Override
+	public double df(double x, double y, int id) {
+
+		if(x>0.0) {
+			return 1.0;
+		} else {
+			return 0.0;
+		}
+		
+	}
+
+
+	@Override
+	public double ddf(double x, double y, int id) {
+		
+		return 0.0;
+		
+	}
+
+
+
+	@Override
+	public double f(double x, int i) {
+
+		if(x>0.0) {
+			return x;
+		} else {
+			return 0;
+		}
+		
+	}
+
+
+
+	@Override
+	public double df(double x, int i) {
+
+		if(x>0.0) {
+			return 1.0;
+		} else {
+			return 0.0;
+		}
+		
+	}
+
+
+
+	@Override
+	public double ddf(double x, int i) {
+
+		return 0.0;
+		
+	}
+
+
+}