Converts non-linear geometry to linear geometry.
Adds vertices to linear geometry. Connects input vertices with densified
approximations to geodesic paths between them.
Densify(SpatialReference SpatialReference, Geometry[] InGeometryArray, double MaxSegmentLength, bool UseDeviationDensification, double DensificationParameter)
|
Parameter |
Description |
|
SpatialReference |
The spatial reference of the geometries in the InGeometryArray. Cannot be null. |
|
InGeometryArray |
The array of Geometry to be densified. All geometries are assumed to be in the coordinate system spatial reference. |
|
MaxSegmentLength |
The maximum allowable length of a segment in densified geometry. See the remarks section below for specific details. |
|
UseDeviationDensification |
Determines the method to use when densifying non-linear segments (curves). |
|
DensificationParameter |
Either the central angle or maximum distance of a replacement segment from an input curve, depending on the UseDeviationDensification parameter. See the remarks section below for specific details. |
Return Value
An array of Geometry (Geometry[]).
Remarks
This method replaces each curve segment, and optionally each line segment,
in a polyline or polygon with line segments. Other
types of input geometries will be ignored. All geometries are assumed
to be in the SpatialReference
provided which cannot be null. If the input
geometries have latitude-longitude coordinates, you should use the DensifyGeodesic method.
When maxSegmentLength is greater than zero, lines and curves greater than that length will be replaced with lines at most maxSegmentLength long, and curves shorter than that will be replaced with lines connecting their endpoints. If maxSegmentLength is 0, then only curve segments will be densified, as explained below.
In general, this method provides three ways to densify curves:
based on length
based on central angle
based on maximum distance of replacement line from input curve (deviation)
The
following table explains how the input parameters work together.
|
MaxSegmentLength is |
And DeviationTolerance is |
Then |
|
>0 |
0 |
All segments longer than maxSegmentLength are replaced with sequences of lines no longer than maxSegmentLength. Curves shorter than maxSegmentLength are replaced with lines connecting the curve endpoints. This is method 1, above, for densifying curves.
|
|
0 |
>0 |
Input lines are copied to the output geometries. Input curves are densified using either method 2 or method 3, based on the value of the useDeviationDensification parameter.
|
|
>0 |
>0 |
Lines longer than maxSegmentLength units are replaced with sequences of lines no longer than maxSegmentLength; curves are replaced with sequences of lines using either method 2 or method 3, based on the value of the useDeviationDensification parameter.
|
When UseDeviationDensification is false the DensificationParameter is interpreted as a central angle, instead of a deviation.
Examples