*

Assets/Plot2D.cs

@@ -0,0 +1,69 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Plot2D : MonoBehaviour {
+
+    public Function2D Function;
+
+    public Vector4 ArgsBounds = new Vector4(0, 0, 1, 1);
+    public Vector4 ViewBounds = new Vector4(0, 0, 1, 1);
+
+    public int USamples = 10;
+    public int VSamples = 10;
+
+    private Vector3[] _points;
+
+    private void OnValidate()
+    {
+        if(USamples < 2) {
+            USamples = 2;
+        }
+        if (VSamples < 2) {
+            VSamples = 2;
+        }
+    }
+
+    private void OnDrawGizmos()
+    {
+        
+        if(Function == null) {
+            return;
+        }
+
+        var pointsCount = USamples * VSamples;
+        if(_points == null || _points.Length != pointsCount) {
+            _points = new Vector3[USamples * VSamples];
+        }
+      
+
+        for (int vI = 0; vI < VSamples; ++vI) {
+            double lV = (double)vI / (VSamples - 1);
+            for (int uI = 0; uI < USamples; ++uI) {
+                double lU = (double)uI / (USamples - 1);
+
+                double u = lU * ArgsBounds.z + ArgsBounds.x;
+                double v = lV * ArgsBounds.w + ArgsBounds.y;
+
+                double z = Function.Evaluate(u, v);
+                double x = lU * ViewBounds.z + ViewBounds.x;
+                double y = lV * ViewBounds.w + ViewBounds.y;
+
+                _points[vI * USamples + uI] = new Vector3((float)x, (float)z, (float)y);
+            }
+        }
+
+
+        for(int y = 0; y < VSamples; ++y) {
+            for (int x = 1; x < USamples; ++x) {
+                Gizmos.DrawLine(_points[y * USamples + (x - 1)], _points[y * USamples + x]);
+            }
+        }
+
+        for (int y = 1; y < VSamples; ++y) {
+            for (int x = 0; x < USamples; ++x) {
+                Gizmos.DrawLine(_points[(y - 1) * USamples + x], _points[y * USamples + x]);
+            }
+        }
+    }
+}