Nodes are now in correct places for desktop.

App/RobobinApp/Views/CentreGraph.xaml.cs

@@ -69,31 +69,66 @@ namespace RobobinApp.Views
 
         private void DrawNodes(ICanvas canvas, float nodeRadius, Node highlightedNode)
         {
+            // Calculate offsets to center the nodes
+            float canvasCenterX = storedDirtyRect.Width * 4.5f / 7;
+            float canvasCenterY = storedDirtyRect.Height / 2;
+
+            // Calculate the center of the graph based on node coordinates
+            float graphCenterX = (_graph.Nodes.Min(node => node.X) + _graph.Nodes.Max(node => node.X)) / 2;
+            float graphCenterY = (_graph.Nodes.Min(node => node.Y) + _graph.Nodes.Max(node => node.Y)) / 2;
+
+            // Offset to center the graph
+            float offsetX = canvasCenterX - graphCenterX;
+            float offsetY = canvasCenterY - graphCenterY;
+
             foreach (var node in _graph.Nodes)
             {
-                float x = node.X; // Use the original X-coordinate
-                float y = node.Y; // Use the original Y-coordinate
+                // Apply centering offsets
+                float centeredX = node.X + offsetX;
+                float centeredY = node.Y + offsetY;
 
                 // Set fill color based on whether the node is highlighted
                 canvas.FillColor = (highlightedNode == node) ? HighlightedNodeColor : DefaultNodeColor;
 
                 // Draw the node as a circle
-                canvas.FillCircle(x, y, nodeRadius);
+                canvas.FillCircle(centeredX, centeredY, nodeRadius);
 
                 // Optionally, draw node name or other details
-                canvas.FontColor = Colors.White;
-                canvas.DrawString(node.Name, x + nodeRadius + 2, y - nodeRadius, HorizontalAlignment.Left);
+                canvas.FontColor = Colors.Black;
+                canvas.DrawString(node.Name, centeredX + nodeRadius + 2, centeredY - nodeRadius, HorizontalAlignment.Left);
             }
         }
 
+
         public Node FindNearestNode(float tapPointX, float tapPointY)
         {
+            // Calculate offsets to center the nodes
+            float canvasCenterX = storedDirtyRect.Width * 4.5f / 7;
+            float canvasCenterY = storedDirtyRect.Height / 2;
+
+            // Calculate the center of the graph based on node coordinates
+            float graphCenterX = (_graph.Nodes.Min(node => node.X) + _graph.Nodes.Max(node => node.X)) / 2;
+            float graphCenterY = (_graph.Nodes.Min(node => node.Y) + _graph.Nodes.Max(node => node.Y)) / 2;
+
+            // Offset to center the graph
+            float offsetX = canvasCenterX - graphCenterX;
+            float offsetY = canvasCenterY - graphCenterY;
+
             float minDistance = float.MaxValue;
             Node nearestNode = null;
 
             foreach (var node in _graph.Nodes)
             {
-                float distance = (float)Math.Sqrt(Math.Pow(node.X - tapPointX, 2) + Math.Pow(node.Y - tapPointY, 2));
+                // Apply centering offsets to node positions
+                float centeredX = node.X + offsetX;
+                float centeredY = node.Y + offsetY;
+
+                // Calculate the distance between the tapped point and the centered node position
+                float distance = (float)Math.Sqrt(
+                    Math.Pow(centeredX - tapPointX, 2) +
+                    Math.Pow(centeredY - tapPointY, 2)
+                );
+
                 if (distance < minDistance)
                 {
                     minDistance = distance;
@@ -103,5 +138,6 @@ namespace RobobinApp.Views
 
             return nearestNode;
         }
+
     }
 }