From ab959294089be78ea257b53551712c726e444d3d Mon Sep 17 00:00:00 2001
From: Pavel Matveev <pavelmatveev84@gmail.com>
Date: Mon, 31 Aug 2026 17:12:09 +1100
Subject: [PATCH 1/5] Build v0.2 coordinate table UI

---
 src/OCR2Geometry/UI/MainWindow.xaml | 82 +++++++++++++++++++++--------
 1 file changed, 61 insertions(+), 21 deletions(-)

diff --git a/src/OCR2Geometry/UI/MainWindow.xaml b/src/OCR2Geometry/UI/MainWindow.xaml
index 1cc79fe..b6f693b 100644
--- a/src/OCR2Geometry/UI/MainWindow.xaml
+++ b/src/OCR2Geometry/UI/MainWindow.xaml
@@ -2,9 +2,10 @@
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         Title="OCR2Geometry for AutoCAD"
-        Height="360"
-        Width="560"
-        ResizeMode="CanMinimize"
+        Height="560"
+        Width="760"
+        MinHeight="500"
+        MinWidth="700"
         WindowStartupLocation="CenterOwner">
     <Grid Margin="18">
         <Grid.RowDefinitions>
@@ -12,6 +13,7 @@
             <RowDefinition Height="Auto" />
             <RowDefinition Height="*" />
             <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
         </Grid.RowDefinitions>
 
         <TextBlock Text="OCR2Geometry"
@@ -19,25 +21,63 @@
                    FontWeight="SemiBold" />
 
         <TextBlock Grid.Row="1"
-                   Margin="0,6,0,16"
-                   Text="AutoCAD 2020 development build — geometry bootstrap"
+                   Margin="0,6,0,14"
+                   Text="AutoCAD 2020 — coordinate table v0.2"
                    Foreground="Gray" />
 
-        <Border Grid.Row="2" BorderBrush="#CCCCCC" BorderThickness="1" Padding="12">
-            <StackPanel>
-                <TextBlock Text="Test coordinates" FontWeight="SemiBold" Margin="0,0,0,8" />
-                <TextBlock FontFamily="Consolas" Text="1    512345.23    6876543.11" />
-                <TextBlock FontFamily="Consolas" Text="2    512351.86    6876551.42" />
-                <TextBlock FontFamily="Consolas" Text="3    512360.14    6876567.30" />
-                <TextBlock Margin="0,14,0,0"
-                           TextWrapping="Wrap"
-                           Text="This bootstrap build creates three DBPoint objects and point-number DBText labels in Model Space." />
-            </StackPanel>
-        </Border>
-
-        <StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Right" Margin="0,16,0,0">
-            <Button Width="150" Height="34" Margin="0,0,8,0" Content="Create test points" Click="CreateTestPoints_Click" />
-            <Button Width="90" Height="34" Content="Close" IsCancel="True" />
-        </StackPanel>
+        <DataGrid x:Name="PointsGrid"
+                  Grid.Row="2"
+                  ItemsSource="{Binding Points}"
+                  AutoGenerateColumns="False"
+                  CanUserAddRows="False"
+                  CanUserDeleteRows="False"
+                  SelectionMode="Extended"
+                  SelectionUnit="FullRow"
+                  HeadersVisibility="Column"
+                  GridLinesVisibility="Horizontal"
+                  Margin="0,0,0,12">
+            <DataGrid.Columns>
+                <DataGridTextColumn Header="Point" Binding="{Binding Number}" Width="100" IsReadOnly="True" />
+                <DataGridTextColumn Header="X" Binding="{Binding X, UpdateSourceTrigger=LostFocus}" Width="*" />
+                <DataGridTextColumn Header="Y" Binding="{Binding Y, UpdateSourceTrigger=LostFocus}" Width="*" />
+            </DataGrid.Columns>
+        </DataGrid>
+
+        <Grid Grid.Row="3" Margin="0,0,0,12">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="22" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="22" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+
+            <Button Grid.Column="0" Width="90" Height="30" Margin="0,0,8,0" Content="Add row" Click="AddRow_Click" />
+            <Button Grid.Column="1" Width="110" Height="30" Margin="0,0,8,0" Content="Delete selected" Click="DeleteSelected_Click" />
+            <Button Grid.Column="2" Width="90" Height="30" Content="Swap X/Y" Click="SwapXY_Click" />
+
+            <TextBlock Grid.Column="4" VerticalAlignment="Center" Text="Start number:" Margin="0,0,6,0" />
+            <TextBox x:Name="StartNumberTextBox" Grid.Column="5" Width="60" Height="26" Text="1" VerticalContentAlignment="Center" />
+
+            <TextBlock Grid.Column="7" VerticalAlignment="Center" Text="Text height:" Margin="0,0,6,0" />
+            <TextBox x:Name="TextHeightTextBox" Grid.Column="8" Width="65" Height="26" Text="2.5" VerticalContentAlignment="Center" />
+        </Grid>
+
+        <Grid Grid.Row="4">
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="Auto" />
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+
+            <Button Grid.Column="0" Width="150" Height="36" Margin="0,0,8,0" Content="Create points" Click="CreatePoints_Click" />
+            <Button Grid.Column="1" Width="120" Height="36" Content="Export CSV" Click="ExportCsv_Click" />
+            <Button Grid.Column="3" Width="90" Height="36" Content="Close" IsCancel="True" />
+        </Grid>
     </Grid>
 </Window>

From a105a70f7694fdb7d50a3340be4a8330c4cb830e Mon Sep 17 00:00:00 2001
From: Pavel Matveev <pavelmatveev84@gmail.com>
Date: Mon, 31 Aug 2026 17:12:25 +1100
Subject: [PATCH 2/5] Implement v0.2 coordinate table actions

---
 src/OCR2Geometry/UI/MainWindow.xaml.cs | 193 +++++++++++++++++++++++--
 1 file changed, 181 insertions(+), 12 deletions(-)

diff --git a/src/OCR2Geometry/UI/MainWindow.xaml.cs b/src/OCR2Geometry/UI/MainWindow.xaml.cs
index b4feabb..bb01779 100644
--- a/src/OCR2Geometry/UI/MainWindow.xaml.cs
+++ b/src/OCR2Geometry/UI/MainWindow.xaml.cs
@@ -1,44 +1,213 @@
 using System;
-using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Globalization;
+using System.Linq;
 using System.Windows;
+using Microsoft.Win32;
 using OCR2Geometry.AutoCAD;
+using OCR2Geometry.Export;
 using OCR2Geometry.Models;
 
 namespace OCR2Geometry.UI
 {
     public partial class MainWindow : Window
     {
-        public MainWindow()
-        {
-            InitializeComponent();
-        }
+        public ObservableCollection<CoordinatePoint> Points { get; }
 
-        private void CreateTestPoints_Click(object sender, RoutedEventArgs e)
+        public MainWindow()
         {
-            var points = new List<CoordinatePoint>
+            Points = new ObservableCollection<CoordinatePoint>
             {
                 new CoordinatePoint(1, 512345.23, 6876543.11),
                 new CoordinatePoint(2, 512351.86, 6876551.42),
                 new CoordinatePoint(3, 512360.14, 6876567.30)
             };
 
+            InitializeComponent();
+            DataContext = this;
+        }
+
+        private void AddRow_Click(object sender, RoutedEventArgs e)
+        {
+            int startNumber;
+            if (!TryGetStartNumber(out startNumber))
+            {
+                return;
+            }
+
+            Points.Add(new CoordinatePoint(startNumber + Points.Count, 0.0, 0.0));
+            RenumberPoints(startNumber);
+        }
+
+        private void DeleteSelected_Click(object sender, RoutedEventArgs e)
+        {
+            var selected = PointsGrid.SelectedItems.Cast<CoordinatePoint>().ToList();
+            foreach (var point in selected)
+            {
+                Points.Remove(point);
+            }
+
+            int startNumber;
+            if (TryGetStartNumber(out startNumber, false))
+            {
+                RenumberPoints(startNumber);
+            }
+        }
+
+        private void SwapXY_Click(object sender, RoutedEventArgs e)
+        {
+            CommitGridEdits();
+
+            foreach (var point in Points)
+            {
+                var x = point.X;
+                point.X = point.Y;
+                point.Y = x;
+            }
+
+            PointsGrid.Items.Refresh();
+        }
+
+        private void CreatePoints_Click(object sender, RoutedEventArgs e)
+        {
+            CommitGridEdits();
+
+            if (Points.Count == 0)
+            {
+                ShowError("The coordinate table is empty.");
+                return;
+            }
+
+            int startNumber;
+            if (!TryGetStartNumber(out startNumber))
+            {
+                return;
+            }
+
+            double textHeight;
+            if (!TryParsePositiveDouble(TextHeightTextBox.Text, out textHeight))
+            {
+                ShowError("Text height must be a positive number.");
+                return;
+            }
+
+            RenumberPoints(startNumber);
+
             try
             {
-                PointCreator.CreatePoints(points);
+                PointCreator.CreatePoints(Points, textHeight, textHeight);
                 MessageBox.Show(
-                    "Three test points and labels were created in Model Space.",
+                    Points.Count + " point(s) and labels were created in Model Space.",
                     "OCR2Geometry",
                     MessageBoxButton.OK,
                     MessageBoxImage.Information);
             }
             catch (Exception ex)
             {
+                ShowError(ex.Message);
+            }
+        }
+
+        private void ExportCsv_Click(object sender, RoutedEventArgs e)
+        {
+            CommitGridEdits();
+
+            if (Points.Count == 0)
+            {
+                ShowError("The coordinate table is empty.");
+                return;
+            }
+
+            int startNumber;
+            if (!TryGetStartNumber(out startNumber))
+            {
+                return;
+            }
+
+            RenumberPoints(startNumber);
+
+            var dialog = new SaveFileDialog
+            {
+                Title = "Export coordinates to CSV",
+                Filter = "CSV files (*.csv)|*.csv|All files (*.*)|*.*",
+                DefaultExt = ".csv",
+                AddExtension = true,
+                FileName = "coordinates.csv"
+            };
+
+            if (dialog.ShowDialog(this) != true)
+            {
+                return;
+            }
+
+            try
+            {
+                CsvExporter.Export(dialog.FileName, Points);
                 MessageBox.Show(
-                    ex.Message,
-                    "OCR2Geometry error",
+                    "CSV exported successfully.",
+                    "OCR2Geometry",
                     MessageBoxButton.OK,
-                    MessageBoxImage.Error);
+                    MessageBoxImage.Information);
+            }
+            catch (Exception ex)
+            {
+                ShowError(ex.Message);
+            }
+        }
+
+        private void CommitGridEdits()
+        {
+            PointsGrid.CommitEdit(System.Windows.Controls.DataGridEditingUnit.Cell, true);
+            PointsGrid.CommitEdit(System.Windows.Controls.DataGridEditingUnit.Row, true);
+        }
+
+        private bool TryGetStartNumber(out int startNumber, bool showError = true)
+        {
+            if (int.TryParse(StartNumberTextBox.Text, NumberStyles.Integer, CultureInfo.InvariantCulture, out startNumber) && startNumber >= 0)
+            {
+                return true;
+            }
+
+            if (showError)
+            {
+                ShowError("Start number must be a whole number greater than or equal to 0.");
+            }
+
+            return false;
+        }
+
+        private static bool TryParsePositiveDouble(string value, out double result)
+        {
+            if (double.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out result) && result > 0)
+            {
+                return true;
+            }
+
+            if (double.TryParse(value, NumberStyles.Float, CultureInfo.CurrentCulture, out result) && result > 0)
+            {
+                return true;
+            }
+
+            return false;
+        }
+
+        private void RenumberPoints(int startNumber)
+        {
+            for (var i = 0; i < Points.Count; i++)
+            {
+                Points[i].Number = startNumber + i;
             }
+
+            PointsGrid.Items.Refresh();
+        }
+
+        private static void ShowError(string message)
+        {
+            MessageBox.Show(
+                message,
+                "OCR2Geometry error",
+                MessageBoxButton.OK,
+                MessageBoxImage.Error);
         }
     }
 }

From a39b9ceef21786a78a17f4360fdccae44e004213 Mon Sep 17 00:00:00 2001
From: Pavel Matveev <pavelmatveev84@gmail.com>
Date: Mon, 31 Aug 2026 17:12:35 +1100
Subject: [PATCH 3/5] Add CSV export service

---
 src/OCR2Geometry/Export/CsvExporter.cs | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/OCR2Geometry/Export/CsvExporter.cs

diff --git a/src/OCR2Geometry/Export/CsvExporter.cs b/src/OCR2Geometry/Export/CsvExporter.cs
new file mode 100644
index 0000000..a62914f
--- /dev/null
+++ b/src/OCR2Geometry/Export/CsvExporter.cs
@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Text;
+using OCR2Geometry.Models;
+
+namespace OCR2Geometry.Export
+{
+    public static class CsvExporter
+    {
+        public static void Export(string path, IEnumerable<CoordinatePoint> points)
+        {
+            using (var writer = new StreamWriter(path, false, new UTF8Encoding(true)))
+            {
+                writer.WriteLine("Point,X,Y");
+
+                foreach (var point in points)
+                {
+                    writer.WriteLine(string.Format(
+                        CultureInfo.InvariantCulture,
+                        "{0},{1:0.########},{2:0.########}",
+                        point.Number,
+                        point.X,
+                        point.Y));
+                }
+            }
+        }
+    }
+}

From 5201abace2e5466621fcb6986c77236aaa66c27e Mon Sep 17 00:00:00 2001
From: Pavel Matveev <pavelmatveev84@gmail.com>
Date: Mon, 31 Aug 2026 17:12:51 +1100
Subject: [PATCH 4/5] Include CSV exporter in v0.2 build

---
 src/OCR2Geometry/OCR2Geometry.csproj | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/OCR2Geometry/OCR2Geometry.csproj b/src/OCR2Geometry/OCR2Geometry.csproj
index 2974df8..461b8b8 100644
--- a/src/OCR2Geometry/OCR2Geometry.csproj
+++ b/src/OCR2Geometry/OCR2Geometry.csproj
@@ -56,6 +56,7 @@
     <Compile Include="Plugin.cs" />
     <Compile Include="Commands\OcrCommand.cs" />
     <Compile Include="AutoCAD\PointCreator.cs" />
+    <Compile Include="Export\CsvExporter.cs" />
     <Compile Include="Models\CoordinatePoint.cs" />
     <Compile Include="UI\MainWindow.xaml.cs">
       <DependentUpon>MainWindow.xaml</DependentUpon>

From ff3c7b595ed94c448b692f63c0e563b799291d0a Mon Sep 17 00:00:00 2001
From: Pavel Matveev <pavelmatveev84@gmail.com>
Date: Mon, 31 Aug 2026 17:13:21 +1100
Subject: [PATCH 5/5] Update README for v0.2 coordinate workflow

---
 README.md | 74 ++++++++++++++++++++++++++++---------------------------
 1 file changed, 38 insertions(+), 36 deletions(-)

diff --git a/README.md b/README.md
index 28aede1..02b35a6 100644
--- a/README.md
+++ b/README.md
@@ -12,22 +12,25 @@ The first target is **AutoCAD 2020**, using **C# / .NET Framework / WPF**.
 - Review and edit recognized values before import
 - Create AutoCAD `DBPoint` objects
 - Add point-number `DBText` labels next to points
-- Export recognized coordinates to CSV
+- Export coordinates to CSV
 
 No latitude/longitude or coordinate-system transformation is planned for the first MVP.
 
-## Current development build
+## Current development build — v0.2
 
-The bootstrap build already contains:
+The current development branch contains:
 
-- AutoCAD plugin entry point
 - `OCR2GEOMETRY` command
-- WPF plugin window
-- test coordinate model
+- editable X/Y coordinate table
+- add and delete table rows
+- X/Y swap
+- configurable start point number
+- configurable text height
 - creation of `DBPoint` objects in Model Space
 - creation of point-number `DBText` labels
+- CSV export with `Point,X,Y` columns
 
-Test coordinates currently used by the bootstrap build:
+Three sample coordinates are preloaded for quick testing:
 
 ```text
 1    512345.23    6876543.11
@@ -39,7 +42,7 @@ Test coordinates currently used by the bootstrap build:
 
 - Windows
 - AutoCAD 2020 installed
-- Visual Studio 2022 with .NET desktop development tools
+- Visual Studio with .NET desktop development tools
 - .NET Framework 4.7.2 targeting pack
 
 The project expects the AutoCAD managed API assemblies in the default installation directory:
@@ -59,29 +62,21 @@ AutoCAD references use `Copy Local = False` so Autodesk DLLs are not copied into
 1. Open `OCR2Geometry.sln` in Visual Studio.
 2. Build the solution in `Debug` or `Release` mode.
 3. Start AutoCAD 2020.
-4. Run:
-
-```text
-NETLOAD
-```
-
+4. Run `NETLOAD`.
 5. Select the built `OCR2Geometry.dll`, normally from:
 
 ```text
 src\OCR2Geometry\bin\Debug\OCR2Geometry.dll
 ```
 
-6. Run:
-
-```text
-OCR2GEOMETRY
-```
+6. Run `OCR2GEOMETRY`.
+7. Edit/add/delete coordinate rows as required.
+8. Test `Swap X/Y`.
+9. Set a start number and text height.
+10. Click **Create points** and verify points/labels in Model Space.
+11. Click **Export CSV** and verify the saved coordinate table.
 
-7. Click **Create test points**.
-
-The bootstrap build should create three points and their point numbers in Model Space.
-
-## Planned development stages
+## Development stages
 
 ### v0.1 — AutoCAD bootstrap
 
@@ -90,26 +85,32 @@ The bootstrap build should create three points and their point numbers in Model
 - [x] WPF window
 - [x] Test point creation
 - [x] Point numbering labels
+- [x] Validated in AutoCAD 2020
 
-### v0.2 — Coordinate table
-
-- [ ] Editable coordinate grid
-- [ ] Add/delete rows
-- [ ] Start-number setting
-- [ ] Text height and text offset settings
-- [ ] X/Y swap
+### v0.2 — Coordinate workflow
 
-### v0.3 — CSV
+- [x] Editable coordinate grid
+- [x] Add/delete rows
+- [x] Start-number setting
+- [x] Text-height setting
+- [x] X/Y swap
+- [x] Create points from the edited table
+- [x] CSV export
+- [ ] Validate v0.2 build in AutoCAD 2020
 
-- [ ] Export recognized/edited table to CSV
-
-### v0.4 — OCR
+### v0.3 — OCR foundation
 
 - [ ] Image selection
 - [ ] OCR engine integration
 - [ ] Coordinate table parser
 - [ ] Recognition confidence / validation workflow
 
+### Later improvements
+
+- [ ] User-defined text offset
+- [ ] Improved AutoCAD layer/settings workflow
+- [ ] Support additional AutoCAD versions
+
 ## Project structure
 
 ```text
@@ -119,6 +120,7 @@ OCR2Geometry-for-AutoCAD/
 │   └── OCR2Geometry/
 │       ├── AutoCAD/
 │       ├── Commands/
+│       ├── Export/
 │       ├── Models/
 │       ├── Properties/
 │       ├── UI/
@@ -128,4 +130,4 @@ OCR2Geometry-for-AutoCAD/
 
 ## Status
 
-Early development. The current branch is intended to prove the AutoCAD 2020 plugin loading and geometry-writing workflow before OCR is added.
+Active development. v0.1 has been validated in AutoCAD 2020; v0.2 is ready for local build/testing before merge to `main`.