Class: Sketchup::Curve

Inherits:
Entity
  • Object
show all

Overview

The Curve class is used by SketchUp to unite a series of Edge objects into one conceptual entity. Since SketchUp is a surface modeler, all circles, arcs, and arbitrary curves are really just edges that are bound together in sequence.

There is a subclass of Curve called ArcCurve, which is any curve that makes up part of a circle. You can think of ArcCurves as entities that were created with SketchUp's Arc or Circle drawing tools and Curves as entities that were created with the Freehand drawing tool.

Version:

  • SketchUp 6.0

Direct Known Subclasses

ArcCurve

Instance Method Summary # collapse

Methods inherited from Entity

#add_observer, #attribute_dictionaries, #attribute_dictionary, #delete_attribute, #deleted?, #entityID, #get_attribute, #inspect, #model, #parent, #persistent_id, #remove_observer, #set_attribute, #to_s, #typename, #valid?

Instance Method Details

#count_edgesObject

The count_edges method is used to retrieve the number of Edge objects that make up the Curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[0]
curve = edge.curve
number = curve.count_edges

Returns:

  • num_edges - the number of edges in the curve

Version:

  • SketchUp 6.0

#each_edgeObject

The each_edge method is used to iterate through all of the Edge objects in the curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[0]
curve = edge.curve
curve.each_edge {|e| UI.messagebox e}

Returns:

  • edge - a variable that will hold each Edge object as they are found.

Version:

  • SketchUp 6.0

#edgesObject

The edges method is used to retrieve an array of Edge objects that make up the Curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[0]
curve = edge.curve
edges = curve.edges

Returns:

  • edges - an array of Edge objects if successful

Version:

  • SketchUp 6.0

#first_edgeObject

The first_edge method is used to retrieve the first edge of the curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[0]
curve = edge.curve
firstedge = curve.first_edge

Returns:

  • edge - the first Edge object in the curve if successful

Version:

  • SketchUp 6.0

#is_polygon?Object

Examples:

# Create a polygon and check its edge
ents = Sketchup.active_model.entities
ents.add_ngon [0, 0, 0], [0, 0, 1], 10, 6
curve = nil
ents.each { |e| curve = e.curve if e.is_a? Sketchup::Edge }
is_poly = curve.is_polygon?

Returns:

  • True if this edge was originally created by the polygon tool, otherwise false.

  • (Boolean)

Version:

  • SketchUp 7.1 M1

#last_edgeObject

The last_edge method is used to retrieve the last edge of the curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[7]
curve = edge.curve
lastedge = curve.last_edge

Returns:

  • edge - the last Edge object in the curve if successful

Version:

  • SketchUp 6.0

#lengthObject

The length method retrieves the length of the curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[7]
curve = edge.curve
length = curve.length

Returns:

  • length - the length of the curve in current units if successful

Version:

  • SketchUp 6.0

#move_vertices(point_array) ⇒ Object

The vertices method retrieves a collection of all vertices in a curve.

Examples:

# Need example ruby code here.

Returns success - true or false

Parameters:

  • point_array

    Array of Point3d objects to move each vertex to match.

Returns:

  • success - true or false

Version:

  • SketchUp 6.0

#verticesObject

The vertices method retrieves a collection of all vertices in a curve.

Examples:

centerpoint = Geom::Point3d.new
# Create a circle perpendicular to the normal or Z axis
vector = Geom::Vector3d.new 0,0,1
vector2 = vector.normalize!
model = Sketchup.active_model
entities = model.entities
edgearray = entities.add_circle centerpoint, vector2, 10
edge = edgearray[7]
curve = edge.curve
vertices = curve.vertices

Returns:

  • vertices - a collection of the vertices

Version:

  • SketchUp 6.0