Table of Contents

Class PointBaseStyle

Namespace
ThinkGeo.Core
Assembly
ThinkGeo.Core.dll
public abstract class PointBaseStyle : Style
Inheritance
PointBaseStyle
Derived
Inherited Members

Constructors

PointBaseStyle() 

protected PointBaseStyle()

PointBaseStyle(GeoBrush, int) 

protected PointBaseStyle(GeoBrush symbolBrush, int symbolSize)

Parameters

symbolBrush GeoBrush
symbolSize int

PointBaseStyle(GeoBrush, GeoPen, int) 

protected PointBaseStyle(GeoBrush symbolBrush, GeoPen symbolPen, int symbolSize)

Parameters

symbolBrush GeoBrush
symbolPen GeoPen
symbolSize int

Properties

CustomPointStyles

This property returns a collection of area styles allowing you to stack multiple area styles on top of each other.

public Collection<PointBaseStyle> CustomPointStyles { get; }

Property Value

Collection<PointBaseStyle>

This property returns a collection of area styles.

Remarks

Using this collection, you can stack multiple styles on top of each other. When we draw the feature, we will draw them in order that they exist in the collection. You can use these stacks to create drop shadow effects, multiple colored outlines, etc.

DrawingLevel 

public DrawingLevel DrawingLevel { get; set; }

Property Value

DrawingLevel

FillBrush

This property gets and sets the SolidBrush used to color the interior of the Symbol.

public GeoBrush FillBrush { get; set; }

Property Value

GeoBrush

This property gets the SolidBrush used to color the interior of the Symbol.

Remarks

This brush is used to draw the interior of the symbol. It is only used if the PointType is Symbol. If you need a brush other than the SolidBrush, you should look in the advanced property of the class.

OutlinePen

This property gets and sets the SolidBrush used to draw the oultine of the Symbol.

public GeoPen OutlinePen { get; set; }

Property Value

GeoPen

This property gets the SolidBrush used to draw the outline of the Symbol.

Remarks

This pen is used to draw the outline of the Symbol. By default the pen draws a transparent (invisible) color, which just leaves you with a fill.

RotationAngle

This property gets and sets the angle of rotation for the drawing of the point.

public float RotationAngle { get; set; }

Property Value

float

This property gets the angle of rotation for the drawing of the point.

Remarks

This property controls the rotation of the bitmap, character or symbol, depending on the PointType.

SymbolSize

This property gets and sets the size of the symbol if the PointType is Symbol.

public float SymbolSize { get; set; }

Property Value

float

This property gets the size of the symbol if the PointType is Symbol.

Remarks

The allows you to make the symbol larger and smaller.

XOffsetInPixel

This property gets and sets the X pixel offset for drawing each feature.

public float XOffsetInPixel { get; set; }

Property Value

float

This property gets the X pixel offset for drawing each feature.

Remarks

This property allows you to specify an X offset. When combined with a Y offset, it is useful to allow you to achieve effects such as drop shadows, etc. There also may be times when you need to modify the location of feature data so as to better align it with raster satellite data.

YOffsetInPixel

This property gets and sets the Y pixel offset for drawing each feature.

public float YOffsetInPixel { get; set; }

Property Value

float

This property gets the Y pixel offset for drawing each feature.

Remarks

This property allows you to specify a Y offset. When combined with an X offset, it is useful to allow you to achieve effects such as drop shadows, etc. There also may be times when you need to modify the location of feature data so as to better align it with raster satellite data.

Methods

DrawSampleCore(GeoCanvas, DrawingRectangleF)

This method draws a sample feature on the view you provided.

protected override void DrawSampleCore(GeoCanvas canvas, DrawingRectangleF drawingExtent)

Parameters

canvas GeoCanvas

This parameter represents the view you want to draw the features on.

drawingExtent DrawingRectangleF

Remarks

This virtual method is called from the concrete public method Draw. In this method, we draw a sample style on the view you provided. This is typically used to display a legend or other sample area.

When implementing this virtual method, consider the view size and draw the sample image appropriately. You should keep in mind that the sample typically shows up on a legend.

Exceptions

ArgumentNullException

If you pass a null as the view, we will throw an ArgumentNullException.

InvalidOperationException

In the event you attempt to call this method when the GeoCanvas's IsDrawing mode is false, it will throw an InvalidOperationException.