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thinkgeo.mapsuite.windowsphonecore.valuestyle

ThinkGeo.MapSuite.WindowsPhoneCore.ValueStyle

Note: The page was created before Map Suite 10. Map Suite 10.0 organized many classes into new namespaces and assemblies as well as had a few minor breaks in compatibility. The majority of previously built code should work without modification assuming the new namespaces are added. For guidance on upgrading your existing code, please check out MapSuite 10 Upgrade Guide.

<!– Class –> This class allows you to match a value with data in the feature to determine how to draw that feature.

Remarks

Value Style:

The ValueStyle allows you to match data in the FeatureSource against a value string. If the value matches, then we will use the style defined in that item to do the drawing. For example, let's say you have some data that contains states, and each state is categorized as either a high, medium or low pollution state. Based on the string values of “High”, Medium“ and “Low”, we can match on these. If a feature's data for the column matched the string “High”, then we would use the high ValueItem's styles to draw that feature. This can be applied to all kinds of things, such as road classifications, etc.

This can be somewhat slow because we have to match data from the FeatureSource. If performance is key, then instead of using the ValueStyle, we recommend that you create a set custom index for your layer, one index with only “High” elements, one for “Medium” and so on. Then load each as a separate layer. In this way, you would only have one data set, but multiple indexes. This is the fastest way if you are working with Shape Files. If you are working with spatial databases, then we suggest creating a view to segment out each category.

Inheritance Hierarchy

Members Summary

Public Constructors

Name Parameters DeclaringType Summary
Public MethodValueStyle This is a constructor for the class.
Public MethodValueStyle String, Collection<ValueItem> This is a constructor for this class.

Protected Constructors

Name Parameters DeclaringType Summary

Public Methods

Name Parameters DeclaringType Summary
Public MethodDraw IEnumerable<BaseShape>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate> Style This method draws the shapes on the canvas you provided.
Public MethodDraw IEnumerable<Feature>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate> Style This method draws the features on the canvas you provided.
Public MethodDrawSample GeoCanvas, DrawingRectangleF Style
Public MethodEquals Object Object
Public MethodGetHashCode Object
Public MethodGetRequiredColumnNames Style This method returns the column data for each feature that is required for the style to properly draw.
Public MethodGetType Object
Public MethodToString Object

Protected Methods

Name Parameters DeclaringType Summary
Protected MethodDrawCore IEnumerable<Feature>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate> Style(overriden) This method draws the features on the canvas you provided.
Protected MethodDrawSampleCore GeoCanvas, DrawingRectangleF Style
Protected MethodFinalize Object
Protected MethodGetRequiredColumnNamesCore Style(overriden) This method returns the column data for each feature that is required for the style to properly draw.
Protected MethodMemberwiseClone Object

Public Properties

Name Return DeclaringType Summary
Public PropertyColumnName String This property gets and sets the column name used to match with the value specified in the items.
Public PropertyIsActive Boolean Style This property gets and sets the active status of the style.
Public PropertyName String Style This property gets and set the name of the style.
Public PropertyRequiredColumnNames Collection<String> Style This property gets the collection of fields that are required for the style.
Public PropertyValueItems Collection<ValueItem> This property gets the collection of ValueItems. Each item can have its own value to match.

Protected Properties

Name Return DeclaringType Summary

Public Events

Name Event Arguments DeclaringType Summary

Public Constructors

ValueStyle()

This is a constructor for the class.

Overloads

This is the default constructor. If you use this constructor, you need to set the required properties manually.

Remarks

If you use this constructor, you need to set the required properties manually.

Parameters

Name Type Description

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ValueStyle(String, Collection<ValueItem>)

This is a constructor for this class.

Parameters

Name Type Description
columnName String<!– System.String –> The columnName used to match with the value specified in the items.
valueItems Collection<ValueItem><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.ValueItem} –> The collection of ValueItems. Each item can have its own value to match.

Go Back

Protected Constructors

Public Methods

Draw(IEnumerable<BaseShape>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate>)

This method draws the shapes on the canvas you provided.

Remarks

This method is the concrete wrapper for the abstract method DrawCore. In this method, we take the shapes you passed in and draw them on the canvas you provided. Each style (based on its properties) may draw each shape differently.

As this is a concrete public method that wraps a Core method, we reserve the right to add events and other logic to pre- or post-process data returned by the Core version of the method. In this way, we leave our framework open on our end, but also allow you the developer to extend our logic to suit your needs. If you have questions about this, please contact our support team as we would be happy to work with you on extending our framework.

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description
shapes IEnumerable<BaseShape><!– System.Collections.Generic.IEnumerable{ThinkGeo.MapSuite.WindowsPhoneCore.BaseShape} –> This parameter represents the shapes you want to draw on the canvas.
canvas GeoCanvas<!– ThinkGeo.MapSuite.WindowsPhoneCore.GeoCanvas –> This parameter represents the canvas you want to draw the shapes on.
labelsInThisLayer Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in the current layer only.
labelsInAllLayers Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in all layers.

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

Draw(IEnumerable<Feature>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate>)

This method draws the features on the canvas you provided.

Remarks

This method is the concrete wrapper for the abstract method DrawCore. In this method, we take the features you passed in and draw them on the canvas you provided. Each style (based on its properties) may draw each feature differently.

As this is a concrete public method that wraps a Core method, we reserve the right to add events and other logic to pre- or post-process data returned by the Core version of the method. In this way, we leave our framework open on our end, but also allow you the developer to extend our logic to suit your needs. If you have questions about this, please contact our support team as we would be happy to work with you on extending our framework.

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description
features IEnumerable<Feature><!– System.Collections.Generic.IEnumerable{ThinkGeo.MapSuite.WindowsPhoneCore.Feature} –> This parameter represents the features you want to draw on the canvas.
canvas GeoCanvas<!– ThinkGeo.MapSuite.WindowsPhoneCore.GeoCanvas –> This parameter represents the canvas you want to draw the features on.
labelsInThisLayer Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in the current layer only.
labelsInAllLayers Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in all layers.

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

DrawSample(GeoCanvas, DrawingRectangleF)

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description
canvas GeoCanvas<!– ThinkGeo.MapSuite.WindowsPhoneCore.GeoCanvas –>
drawingExtent DrawingRectangleF<!– ThinkGeo.MapSuite.WindowsPhoneCore.DrawingRectangleF –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

Equals(Object)

Return Value

Return Type Description
Boolean<!– System.Boolean –>

Parameters

Name Type Description
obj Object<!– System.Object –>

<!– System.Object –> Go Back

GetHashCode()

Return Value

Return Type Description
Int32<!– System.Int32 –>

Parameters

Name Type Description

<!– System.Object –> Go Back

GetRequiredColumnNames()

This method returns the column data for each feature that is required for the style to properly draw.

Remarks

This method is the concrete wrapper for the abstract method GetRequiredColumnNamesCore. In this method, we return the column names that are required for the style to draw the feature properly. For example, if you have a style that colors areas blue when a certain column value is over 100, then you need to be sure you include that column name. This will ensure that the column data is returned to you in the feature when it is ready to draw.

In many of the styles, we add properties to allow the user to specify which field they need; then, in the GetRequiredColumnNamesCore we read that property and add it to the collection.

As this is a concrete public method that wraps a Core method, we reserve the right to add events and other logic to pre- or post-process data returned by the Core version of the method. In this way, we leave our framework open on our end, but also allow you the developer to extend our logic to suit your needs. If you have questions about this, please contact our support team as we would be happy to work with you on extending our framework.

Return Value

Return Type Description
Collection<String><!– System.Collections.ObjectModel.Collection{System.String} –> This method returns a collection of column names that the style needs.

Parameters

Name Type Description

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

GetType()

Return Value

Return Type Description
Type<!– System.Type –>

Parameters

Name Type Description

<!– System.Object –> Go Back

ToString()

Return Value

Return Type Description
String<!– System.String –>

Parameters

Name Type Description

<!– System.Object –> Go Back

Protected Methods

DrawCore(IEnumerable<Feature>, GeoCanvas, Collection<SimpleCandidate>, Collection<SimpleCandidate>)

This method draws the features on the canvas you provided.

Remarks

This overridden method is called from the concrete public method Draw. In this method, we take the features you passed in and draw them on the canvas you provided. Each style (based on its properties) may draw each feature differently.

When overriding this method, consider each feature and its column data values. You can use the full power of the GeoCanvas to do the drawing. If you need column data for a feature, be sure to override the GetRequiredColumnNamesCore and add the columns you need to the collection. In many of the styles, we add properties to allow the user to specify which field they need; then, in the GetRequiredColumnNamesCore, we read that property and add it to the collection.

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description
features IEnumerable<Feature><!– System.Collections.Generic.IEnumerable{ThinkGeo.MapSuite.WindowsPhoneCore.Feature} –> This parameter represents the features you want to draw on the canvas.
canvas GeoCanvas<!– ThinkGeo.MapSuite.WindowsPhoneCore.GeoCanvas –> This parameter represents the canvas you want to draw the features on.
labelsInThisLayer Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in the current layer only.
labelsInAllLayers Collection<SimpleCandidate><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.SimpleCandidate} –> The labels will be drawn in all layers.

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style(overriden) –> Go Back

DrawSampleCore(GeoCanvas, DrawingRectangleF)

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description
canvas GeoCanvas<!– ThinkGeo.MapSuite.WindowsPhoneCore.GeoCanvas –>
drawingExtent DrawingRectangleF<!– ThinkGeo.MapSuite.WindowsPhoneCore.DrawingRectangleF –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

Finalize()

Return Value

Return Type Description
Void<!– System.Void –>

Parameters

Name Type Description

<!– System.Object –> Go Back

GetRequiredColumnNamesCore()

This method returns the column data for each feature that is required for the style to properly draw.

Remarks

This abstract method is called from the concrete public method GetRequiredFieldNames. In this method, we return the column names that are required for the style to draw the feature properly. For example, if you have a style that colors areas blue when a certain column value is over 100, then you need to be sure you include that column name. This will ensure that the column data is returned to you in the feature when it is ready to draw.

In many of the styles, we add properties to allow the user to specify which field they need; then, in the GetRequiredColumnNamesCore, we read that property and add it to the collection.

Return Value

Return Type Description
Collection<String><!– System.Collections.ObjectModel.Collection{System.String} –> This method returns a collection of the column names that it needs.

Parameters

Name Type Description

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style(overriden) –> Go Back

MemberwiseClone()

Return Value

Return Type Description
Object<!– System.Object –>

Parameters

Name Type Description

<!– System.Object –> Go Back

Public Properties

ColumnName

This property gets and sets the column name used to match with the value specified in the items.

Remarks

This is the column we use for matching.

Return Value

Return Type
String<!– System.String –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.ValueStyle –> Go Back

IsActive

This property gets and sets the active status of the style.

Remarks

If the style is not active then it will not draw.

Return Value

Return Type
Boolean<!– System.Boolean –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

Name

This property gets and set the name of the style.

Remarks

This name is not used by the system; it is only for the developer. However, it can be used if you generate your own legend.

Return Value

Return Type
String<!– System.String –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

RequiredColumnNames

This property gets the collection of fields that are required for the style.

Remarks

This property gets the collection of fields that are required for the style. These are in addition to any other columns you specify in styles that inherit from this one. For example, if you have use a ValueStyle and it requires a column name for the value comparison, then that column does not need to be in this collection. You only use the RequiredColumnNames for columns you need beyond those required by specific inherited styles.

Return Value

Return Type
Collection<String><!– System.Collections.ObjectModel.Collection{System.String} –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.Style –> Go Back

ValueItems

This property gets the collection of ValueItems. Each item can have its own value to match.

Remarks

You will want to add ValueItems to this collection. Each item can have its own style and matching string.

Return Value

Return Type
Collection<ValueItem><!– System.Collections.ObjectModel.Collection{ThinkGeo.MapSuite.WindowsPhoneCore.ValueItem} –>

<!– ThinkGeo.MapSuite.WindowsPhoneCore.ValueStyle –> Go Back

Protected Properties

Public Events

thinkgeo.mapsuite.windowsphonecore.valuestyle.txt · Last modified: 2017/03/16 21:59 (external edit)