new sg.geometry.LinearRing()
Description
create a linear ring.
Position
Geometry.js
Properties
Properties |
Type |
Description |
extent |
sg.geometry.Extent |
Name |
length |
Number |
pt |
path |
Array.<sg.geometry.Point> |
Array of the path |
type |
String |
Geometry type |
Methods
Methods |
Type |
Description |
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addPoint(pt) |
Returns: sg.geometry.Point |
add vertexes
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toWkt() |
Returns: String |
return WKT string Returns:
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getExtent() |
Returns: sg.geometry.Extent |
return geometry extent Returns:
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getLength() |
Returns: Number |
return line length Returns:
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getMidPoint() |
Returns: sg.geometry.Point |
return the middle point of a line Returns:
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setPath(path) |
Returns: Array.<sg.geometry.Point> |
set line path
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getCentroid() |
Returns: sg.geometry.Point |
return the centroid of a ring Returns:
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Clone() |
Returns: sg.geometry.LineString |
Copy the geomtery object Returns:
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forEachVertex(callback) |
Returns: sg.geometry.Point |
Get each verttex of a ring
callback(context) { //Vertex Context.point; //Vertex index Context.pointIndex; } |
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getFirstPoint_() |
Returns: sg.geometry.point |
Get the first vertex of a ring Return:
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update() |
update line attribute |
Example
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