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    This version of the module is deprecated: Use moonbitlang/pdflite instead

    bobzhang/pdflite/shape does not have a README file

    PdfRectangle

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    A normalized rectangle in PDF user-space coordinates.

    min_x and min_y are always the lower bounds, and max_x and max_y are always the upper bounds. Parsers normalize PDF rectangle arrays whose coordinates are written in the opposite order.

    Point2

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    A two-dimensional point in PDF user-space coordinates.

    TransformMatrix

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    A PDF affine transform matrix.

    The fields correspond to PDF's six-operand matrix [a b c d e f], where a point is transformed as x' = a*x + c*y + e and y' = b*x + d*y + f.

    PdfDrawnPath

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    pub(all) struct PdfDrawnPath {
      stroked : Bool
      filled : Bool
      path : PdfPath
    } derive(Eq, ToJson, 
    Debug    )

    A cpdfcontent drawn path, pairing path geometry with paint flags.

    PdfDrawnPath::content_json

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    fn PdfDrawnPath::content_json(self : PdfDrawnPath) -> Json

    Return cpdfcontent's JSON shape for a drawn path.

    PdfPath

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    pub(all) struct PdfPath {
      winding_rule : PdfPathWindingRule
      subpaths : Array[PdfPathSubpath]
    } derive(Eq, ToJson, 
    Debug    )

    A cpdf-style path.

    PdfPath::bounds

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    Return cpdfcontent's axis-aligned bounding box for a path.

    Empty paths return a zero rectangle, matching cpdfcontent.ml.

    PdfPath::pdf_path_bounds_optional

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    Return the bounds of a path, or None when it has no drawable segments.

    PdfPath::transform

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    Transform every point in a path.

    PdfPathClosure

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    pub(all) enum PdfPathClosure {
      PdfPathClosed
      PdfPathOpen
    } derive(Eq, ToJson, 
    Debug    )

    Whether a subpath is open or closed.

    PdfPathHole

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    pub(all) enum PdfPathHole {
      PdfPathHole
      PdfPathNotHole
    } derive(Eq, ToJson, 
    Debug    )

    Whether a subpath is a hole in the containing path.

    PdfPathSegment

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    One straight or Bezier path segment.

    PdfPathSegment::bounds

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    Return cpdfcontent's control-point bounding box for a path segment.

    Bezier bounds intentionally include the two control points rather than solving for curve extrema, matching cpdfcontent.ml's bbox_of_segment.

    PdfPathSegment::content_json

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    fn PdfPathSegment::content_json(self : PdfPathSegment) -> Json

    Return cpdfcontent's JSON shape for one path segment.

    PdfPathSegment::transform

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    Transform every point in a path segment.

    PdfPathSubpath

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    pub(all) struct PdfPathSubpath {
      hole : PdfPathHole
      closure : PdfPathClosure
      segments : Array[PdfPathSegment]
    } derive(Eq, ToJson, 
    Debug    )

    A cpdf-style subpath.

    PdfPathSubpath::content_json

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    fn PdfPathSubpath::content_json(self : PdfPathSubpath) -> Json

    Return cpdfcontent's JSON shape for one subpath.

    The hole flag is intentionally not emitted, matching cpdfcontent.ml.

    PdfPathWindingRule

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    pub(all) enum PdfPathWindingRule {
      PdfPathEvenOdd
      PdfPathNonZero
    } derive(Eq, ToJson, 
    Debug    )

    Fill rule for a cpdf-style path.

    pdf_circle

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    fn pdf_circle(center_x : Double, center_y : Double, radius : Double) -> PdfPath

    Source-spelled compatibility alias for cpdfshape's circle.

    pdf_drawn_path_content_json

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    fn pdf_drawn_path_content_json(path : PdfDrawnPath) -> Json

    Compatibility wrapper for PdfDrawnPath::content_json.

    pdf_kappa

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    let pdf_kappa : Double

    Source-spelled compatibility alias for cpdfshape's kappa.

    pdf_path_bounds

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    Compatibility wrapper for PdfPath::bounds.

    pdf_path_segment_bounds

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    Compatibility wrapper for PdfPathSegment::bounds.

    pdf_path_segment_content_json

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    fn pdf_path_segment_content_json(segment : PdfPathSegment) -> Json

    Compatibility wrapper for PdfPathSegment::content_json.

    pdf_path_segment_transform

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    Compatibility wrapper for PdfPathSegment::transform.

    pdf_path_subpath_content_json

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    fn pdf_path_subpath_content_json(subpath : PdfPathSubpath) -> Json

    Compatibility wrapper for PdfPathSubpath::content_json.

    pdf_path_transform

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    Compatibility wrapper for PdfPath::transform.

    pdf_rectangle

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    fn pdf_rectangle(x : Double, y : Double, width : Double, height : Double) -> PdfPath

    Source-spelled compatibility alias for cpdfshape's rectangle.

    pdf_restrict_angle

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    fn pdf_restrict_angle(step : Double, angle : Double) -> Double

    Restrict an angle to the closest multiple of step, modulo 2 * pi.

    pdf_shape_circle

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    fn pdf_shape_circle(center_x : Double, center_y : Double, radius : Double) -> PdfPath

    Build a cpdf-style circular path from four Bezier quarter arcs.

    pdf_shape_kappa

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    let pdf_shape_kappa : Double

    Bezier control-line factor used by cpdf for circular arcs.

    pdf_shape_rectangle

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    fn pdf_shape_rectangle(x : Double, y : Double, width : Double, height : Double) -> PdfPath

    Build a cpdf-style rectangle path from a top-left point, width, and height.

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