PdfPatchMeshBuilder Class

Definition

Assembly Broadside.dll

Show inherited members (9)

Builds a patch mesh shading: Coons patches (Type 6) or tensor-product patches (Type 7), colours given at the corners.

public sealed class PdfPatchMeshBuilder : PdfMeshBuilder

Remarks

ISO 32000-2 §8.7.4.5.7 (Tables 83 and 84) and §8.7.4.5.8 (Table 85). Each patch is given by its control points in the order the data stream lists them, which is the order of Figure 45: p₀₀ p₀₁ p₀₂ p₀₃ p₁₃ p₂₃ p₃₃ p₃₂ p₃₁ p₃₀ p₂₀ p₁₀, the boundary (12 points for a Coons patch), followed for a tensor-product patch by the interior points p₁₁ p₁₂ p₂₂ p₂₁ (16 points). The four corner colours are those of p₀₀, p₀₃, p₃₃ and p₃₀, in that order.

Every patch is written in full with edge flag 0; patches that share an edge repeat its points. Write the mesh with CreateMeshShading(PdfPatchMeshBuilder, PdfShadingOptions?).

Tip: use kind:method, kind:property, kind:ctor. Press Esc to clear.

Constructors (2)

PdfPatchMeshBuilder(PdfColorSpace, PdfFunction, Boolean)Initializes a new instance of the PdfPatchMeshBuilder class whose corners carry a parametric value t.

PdfPatchMeshBuilder(PdfColorSpace, Boolean)Initializes a new instance of the PdfPatchMeshBuilder class whose corners carry colours.

Properties (2)

IsTensorProductGets a value indicating whether the patches are tensor-product patches (Type 7) rather than Coons patches (Type 6).

PatchCountGets the number of patches added.

Methods (2)

AddPatch(ReadOnlySpan<PathPoint>, ReadOnlySpan<PdfColor>)Adds a patch whose corners carry colours.

AddPatch(ReadOnlySpan<PathPoint>, ReadOnlySpan<Double>)Adds a patch whose corners carry a parametric value t.