Method: string SvgPathFragment(Vertex, Func<Vertex, PointD>, Func<double, string>, bool)

• Declared in: RT.Coordinates.Vertex
• Virtual

Declaration

public virtual string SvgPathFragment(
    Vertex from,
    Func<Vertex, PointD> getVertexPoint,
    Func<double, string> r,
    bool isLast
)

Summary

Provides a means for derived classes to override the SVG path generation for a line segment from another vertex from to this one.

Parameters

Vertex	from	Previous vertex along the path.
Func<Vertex, PointD>	getVertexPoint	Function to obtain the 2D coordinates of the vertex. Overrides must use this instead of calling Vertex.Point directly to allow client code to use SvgInstructions.GetVertexPoint to override the positions of vertices.
Func<double, string>	r	Use this to turn floating-point values into strings. This will respect the user’s SvgInstructions.Precision instruction.
bool	isLast	true if we are generating a closed path and this is the last invocation. This vertex is therefore the first in the path, as the path is returning to its starting position.

Returns

A string that can be inserted in the d attribute of an SVG <path> element.

Remarks

The implementation must assume that the SVG path is already at the from vertex and return only the part of the path that leads to the current vertex. For example, the default implementation returns $"L{r(PointD.X)} {r(PointD.Y)}" and does not reference from at all.