Click or drag to resize
Ab4d.SharpEngine logo

HeightMapContoursNodeCreateContourLines(Vector3, Int32, Single, Single) Method

Generates contour line segments for a mesh based on specified contour heights and an optional vertical offset.

Namespace: Ab4d.SharpEngine.SceneNodes
Assembly: Ab4d.SharpEngine (in Ab4d.SharpEngine.dll) Version: 4.0.9584+ba1aaa26d4181dd3fa8ed7b6398391d1affa36c8
Syntax
C#
Copy
public static List<Vector3>?[] CreateContourLines(
	Vector3[] positions,
	int[] triangleIndices,
	float[] contourLineHeights,
	float contourOffset
)

Parameters

positions  Vector3
An array of position defined as Vector3. The Y component of each vertex's position is used to determine contour intersections.
triangleIndices  Int32
An array of indices defining the mesh triangles. Each group of three consecutive indices represents a triangle in the mesh.
contourLineHeights  Single
An array of Y-coordinate values at which contour lines are to be generated. Each value specifies a horizontal plane where contours are computed.
contourOffset  Single
The vertical offset to apply to each generated contour line segment. This value is added to the Y component of each contour point.

Return Value

ListVector3
An array of lists, where each list contains the contour line segment endpoints for the corresponding contour height. If no segments are found for a given height, the array element is null.
Remarks
Each contour line segment is represented by two Vector3 points. The method processes each triangle in the mesh and determines where the specified contour heights intersect the triangle. The resulting segments are offset vertically by the specified amount. The returned array has the same length as the contourLineHeights array, and each element contains the segments for that contour height.
See Also