✅ How to Create Line Layer, Add Lines & Edit Lines in QGIS

🟡 Step 1: Create a New Line Layer

1. Open QGIS.

2. Go to the top menu:

   Layer → Create Layer → New Shapefile Layer…

3. In the dialog box:

   • Geometry Type: Select Line

   • CRS (Coordinate Reference System): Choose WGS 84 (EPSG:4326) or your project CRS.

   • Add fields:

     • Example:

       • Name – Text (String)

       • ID – Whole Number (Integer)

4. Click OK

5. Save the file (e.g., My_Lines.shp)

🟡 Step 2: Add the Line Layer to Map Canvas

• The new line layer will automatically appear in the Layers panel and on the map canvas.

🟡 Step 3: Toggle Editing Mode

1. Right-click on your line layer → Toggle Editing
   or click the ✏️ pencil icon on the top toolbar.

🟡 Step 4: Add Line Features

1. Select the “Add Line Feature” tool (icon: ➖ with a plus symbol).

2. Click on the map canvas to start drawing a line:

   • Click to add vertices.

   • Right-click to finish the line.

3. A form will appear → Fill in the attributes (e.g., Name, ID)

4. Click OK

5. Repeat to add more lines.

🟡 Step 5: Save and Exit Editing

• Click 💾 Save Layer Edits

• Then click ✏️ Toggle Editing to stop editing.

✏️ How to Edit Existing Lines

1. Enable editing: Right-click the layer → Toggle Editing

2. Use these tools:

   • Select Features by Area/Polygon → select the line you want to edit.

   • Vertex Tool → move, add, or delete vertices on the line.

   • Cut Features → split a line.

   • Node Tool → fine-tune geometry.

3. After editing:

   • Click 💾 Save Layer Edits

   • Click ✏️ Toggle Editing to exit edit mode.

✅ You’re Done!

You now know how to create, draw, and edit line features in QGIS.