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Gets the coordinates that describe an area feature.
a = GetArea(integer id)
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Argument |
Contents |
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id |
The ID of the area feature |
A three-element array, as indicated below:
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Element |
Type |
Contents |
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n_polygons |
Integer |
Number of polygons that describe the area |
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n_points |
Array |
The number of points in each polygon |
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coords |
Array |
The complete array of coordinates that define the area |
The current layer must be an area layer.
The first coordinate of each polygon is repeated at the end of the polygon.
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Function |
Summary |
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Adds an area feature to an area layer |
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Deletes an area feature from an area layer |
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Returns the area of the feature in current map units |
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Gets the coordinates that describe the location of a line feature |
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Gets the number of polygons in an area feature |
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Gets the location of a point feature with a specified ID |
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