Class: Curve

Curve(data, options)

A Curve visual is a linear curve.

Constructor

new Curve(data, options)

Create a curve visual.
Parameters:
Name Type Description
data Array.<Object> An array of data.
options Object Configuration options.
Author:
  • Lawrence Fyfe
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Methods

addProperty(name, value)

Add the specified property to this visual. The property is stored as [name, value].
Parameters:
Name Type Description
name string The name of the property.
value string The value of the property.
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appendData(data)

Append the provided data array to the existing data array in this visual.
Parameters:
Name Type Description
data Array The data array to append.
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canDeleteTime(baseTime, deltaTime)

Determines whether time in the specified time range can be deleted.
Parameters:
Name Type Description
baseTime number The start of the selection.
deltaTime number The end of the selection.
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deleteTime(baseTime, deltaTime)

Deletes time based on the specified selection range.
Parameters:
Name Type Description
baseTime number The start of the selection.
deltaTime number The end of the selection.
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delineate(dx, pointerX, pointerY, callDrawopt)

Edit values for points by moving the mouse.
Parameters:
Name Type Attributes Default Description
dx number Delta x.
pointerX number Pointer x.
pointerY number Pointer y.
callDraw boolean <optional>
 true Whether to call draw() from this method.
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deselect(callDrawopt)

Deselect this curve and optionally redraw it.
Parameters:
Name Type Attributes Default Description
callDraw boolean <optional>
 true Whether to call draw() from this method.
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draw()

Draw this visual.
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drawAreaCurve()

Draw an area curve.
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drawLineCurve()

Draw a line curve.
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erase()

Erase this visual.
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includeVisual(visualType, options)

Include the visual type indicated by the type string with the specified options.
Parameters:
Name Type Description
visualType string The visual type.
options object Options for the visual type.
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initialize(parentElement, width, height, timeScale)

Initialize this visual.
Parameters:
Name Type Description
parentElement Element The parent element.
width number The parent width.
height number The parent height.
timeScale d3.scaleLinear The time scale.
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insertTime(baseTime, deltaTime)

Inserts time based on the specified selection range.
Parameters:
Name Type Description
baseTime number The start of the selection.
deltaTime number The end of the selection.
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select(callDrawopt)

Select this curve and optionally redraw it.
Parameters:
Name Type Attributes Default Description
callDraw boolean <optional>
 true Whether to call draw() from this method.
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setEditor(editor)

Set the editor for this visual and set editing callbacks.
Parameters:
Name Type Description
editor object The VisualEditor to set.
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setValueRange(start, end)

Set the range for values in this visual.
Parameters:
Name Type Description
start number The start of the range.
end number The end of the range.
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