arc 

<script src="./point_src/arc"></script>
parse

There are a few arc tools we want here.

Draw arc:

  • typical:

a.pen.arc(ctx, b, primaryColor, size, 2, 0)

Meta Data
filepath_exists True
path arc
filepath arc.js
clean_files ()
  • ClassDeclaration
    class

    PointArc

    extends None
    class comments:

    Point as center, arc from A, to B, at a distance c.radius

    • constructor

      constructor

      (
      parent
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])
    • method

      fromTo

      (
      fromPoint , toPoint , direction
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])

      Point as center, arc from A, to B, at a distance c.radius

    • method

      sweep

      (
      radSweep , direction
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])

      Sweep through a rad amount, e.g. PI.

    • method

      to

      (
      other , through
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos']) 
            stage.fromPoint.arc.to(stage.toPoint, stage.centerPoint)
    • method

      though

      (
      a , centerPoint , b
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])

      An arc from A to B through c, the radius is evaluated

    • method

      radial

      (
      other , radius
      )
      from PointArc
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])

      from this A (typically center), to B other, drawing an arc of a given radius.

    dict_keys(['kind', 'word', 'parentName', 'type', 'body', 'comments', 'pos'])
  • ExpressionStatement

    :

    dict_keys(['type', 'expression', 'pos'])
  • FunctionDeclaration
    function

    getArcCenter

    (
    A , B , C
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])
  • FunctionDeclaration
    function

    getArcCenterThrough

    (
    A , B , C
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])
  • FunctionDeclaration
    function

    getRadiusPlot

    (
    A , B , radius
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])
  • VariableDeclaration
    const

    penArcPlot

    =
    function ( arcPlot , ctx , color =red , width =2 )
  • VariableDeclaration
    const

    drawArcPlot

    =
    function ( arcPlot , ctx , color =red , width =2 )
  • ClassDeclaration
    class

    ArcPlot

    extends None
    class comments:
    • method

      fromTo

      (
      centerPoint , fromPoint , toPoint , direction
      )
      from ArcPlot
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])
    • method

      sweep

      (
      centerPoint , radSweep , direction
      )
      from ArcPlot
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])
    • method

      though

      (
      a , centerPoint , b
      )
      from ArcPlot
      dict_keys(['kind', 'word', 'static', 'computed', 'is_symbol', 'value', 'type', 'comments', 'pos'])
    dict_keys(['kind', 'word', 'parentName', 'type', 'body', 'comments', 'pos'])
  • VariableDeclaration
    const

    getArcPlotAngle

    =
    function ( arcPlot , direction =1 )

    Given an arcplot object return the angle difference between the two arc points.

    For example if the two items are pointing directly away from each other,
the result is 180 (degrees)
  • VariableDeclaration
    const

    arcSweep

    =
    function ( centerPoint , radSweep , direction )

    Draw an arc as a sweep, using the center point initial direction and a angle to sweep through.

    Draw a 1/4 pie arc

    let arcPlot = arcSweep(centerPoint, Math.PI * .5)
  • VariableDeclaration
    const

    arcFromTo

    =
    function ( centerPoint , fromPoint , toPoint , direction )

    An arc, starting at fromPoint, ending at toPoint, the origin center, at a distance from the center, equal to the center point radius.

        let arcPlot = arcFromTo(centerPoint, fromPoint, toPoint)
    penArcPlot(arcPlot, ctx, 'orange')

the  _from_ or _to_ point may be at any distance from the center point.
  • FunctionDeclaration
    function

    findThirdPoint

    (
    A , B
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])
  • FunctionDeclaration
    function

    findRadius

    (
    pointA , pointB , pointC
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])
  • FunctionDeclaration
    function

    arcPlotTo

    (
    center , start , sweepDegrees
    )
    dict_keys(['kind', 'word', 'generator', 'expression', 'async', 'params', 'id', 'pos', 'type'])