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SharpPlot Tutorials
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SharpPlot Class
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SharpLeaf Class
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Table Class
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SharpLeaf Structures
FontType Structure
ParagraphStyle Structure
BoxStyle Structure
SharpLeaf Enumerations
DocumentLayout Classes
DocumentLayout Class
PageLayout Class
PageElement Abstract Class
Frame : PageElement Class
TextBlock : PageElement Class
ImageBlock : PageElement Class
Box : PageElement Class
Rule : PageElement Class
Common Reference
Document Class
VectorMath Class
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SharpPlot Reference > PageMap Class
PageMap Class
The PageMap class allows the programmer to explore hotspot data contained in any chart to reproduce the typical behaviour of a VML graphic deployed by a web-server.
public class PageMap
A PageMap object is obtained by the SharpPlot.RenderPageMap method.
This utility class is designed to permit an application to convert mouse-tracking information into references back to the original data from which the chart was created.
This may be used (for example) to eliminate outliers from a regression analysis or to implement data editing by allowing the user to drag markers or bars. The examples all refer to this simple chart, which has 2 data series (one with bars and one with markers) and also has a tip on the heading text.
The hotspot detail is always returned in a HotspotInfo structure which tells you all you need to know to implement a graphical enquiry or editing application.
See PageMap Introduction for a fuller description and a simple worked example.
PageMap Instance Properties
| Height | Height of paper in user’s units (ReadOnly) |
| Scale | User’s units relative to points (ReadOnly) |
| Width | Width of paper in user’s units (ReadOnly) |
PageMap Methods
| AxesToPoints | Convert Axis co-ordinates to absolute points |
| EnumerateCharts | List all charts found on this page |
| FindChart | Report the name of the chart at these (x,y) co-ordinates |
| FindHint | Recover hint text given hotspot handle |
| FindHotspot | Find the details of any data points on this page at given (x,y) location |
| FindHyperlink | Recover link text given hotspot handle |
| FindInfo | Find the details of any standard chart object(s) given chartid and target |
| FindPoints | Locate all data points whose centres lie within given bounding box |
| FindScriptValue | Recover saved script value from hotspot |
| FindTip | Recover tip text given hotspot details |
| GetHotspotInfo | Return hotspot detail as a structure |
| GetTracker | Convert points to status message giving formatted x and y in user-space |
| PointsToAxes | Convert points to axis co-ordinates, defaulting to topmost chart |
Requirements
Namespace: Causeway
Assembly: SharpPlot (in sharpplot.dll)