DotSpatial_Tutorial_4.docx

Introduction to Programming with DotSpatial

Shape File, Attribute Table Operations

and Printing map in DotSpatial

Tutorial (4)

Purpose of this tutorial: Become familiar with the following operations in DotSpatial:

1. Shape file related operations.

1.1) Creating the following types of shape files: Point, Polyline, Polygon

1.2) Add an attribute to the above shape files.

2.3) Export an attribute to table to MS Excel worksheet.

3. Printing a map in DotSpatial.

3.1) Implement a print operation.

3.2) Set a print document properties. (North Arrow, Legend, Scale bar, Title)

This tutorial has 5 important steps.

Step 1: Download the DotSpatial class library

Step 2: Add the DotSpatial reference and change the compile option.

Step 3: Add the DotSpatial Controls into the Visual Studio Toolbox.

Step 4: Design the GUI. (GUI - Graphical User Interface)

Step 5: Write the code for implementing the map operations.

Introduction to Programming with DotSpatial

context menu select the add reference and add the following reference from the DotSpatial folder.

DotSpatial.Data.Forms.dll, DotSpatial.Symbology.dll, DotSpatial.Controls.dll, DotSpatial.Projections.dll,

DotSpatial.Data.dll, DotSpatial.Topology.dll

Fig. 1 Required references.

Introduction to Programming with DotSpatial

Fig. 2 Required references on Visual Studio Development Environment.

2.2) Change the compile option from .Net FrameWork 4 Client Profile to .Net FrameWork 4

This step is as same as the Tutorial # 1 step 2.2.

Step 3: Add the DotSpatial Controls into the Visual Studio Toolbox.

This step is as same as the Tutorial # 1 step 3.

Step 4 : Design the GUI. (Graphical User Interface)

Introduction to Programming with DotSpatial

Name pnlOperations pnlLegend pnlMap pnlAttribute

Dock Top Left Fill Bottom

Note: Set the border style of the panels to Fixed Single (Optional)

2. Add a menu strip control on the pnlOperations. Menu should be contains the following menu items.

2.1) Main menu item: File, Shapefile Operations, Map Options, and Attribute Table Operations

2.2) Sub menu items:

Under File menu item create 3 sub menu items as follows: Load, Clear, Exit

Those implementations can be found in ‘Tutorial 2’.

Under the Shapefile Operations create the following sub menu items : Point , Polyline, Polygon

Introduction to Programming with DotSpatial

Under the Point sub menu item create the following Sub menu items: Create Point Shapefile, Save Point

Measurement, Zoom In, Zoom Out, Zoom to Extent, Pan, and Print Map

Under the Attribute Table Operations menu item create the following sub menu items: View Attribute

table, Add a column in the attribute table, Save the colum in ShapeFile, Delete a column in the attribute

table, Update attribute table in Shapefile, Export Attribute table to Excel.

Fig. 4. Menu Items

3. Add the Map and legend controls on the form.

3.1 ) Add the map control on the pnlMap control and add legend control on the pnlLegend.

Map and Legend control are located on the Toolbox under DotSpatial controls.

Set the map properties as follows: Dock = Fill, Legend = Legend1

Set the legend properties as follows: Dock = Fill

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