Arc

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An arc entity is a continuous portion of a circle; part of a circle's circumference (also called a circle segment).

 

                       Arc

 

 

In hsCADCreator, the Arc Entity consists of the following data in addition to the Common Data:

Property Name

Data Type

Description

Center Point

3D Point (X, Y, Z coordinates)

Center point of the circle that this arc represents.

Starting Angle

Scientific Data (degrees, radians)

Angle of origin of the arc in relation to the Cartesian plane (360 degrees)

Ending Angle

Scientific Data (degrees, radians)

Angle of completion of the arc in relation to the Cartesian plane (360 degrees)

Radius

Scientific Data

The line segment distance from the arc's center to any point on the arc

 

Start Point

3D Point (X, Y, Z coordinates)

Starting point of arc.

Through Point

3D Point (X, Y, Z coordinates)

Any point on this arc. Initially, this point is set to be equal to Mid Point. When this property is changed, arc is recalculated such that it passes through Start Point, new Through Point and End Point. Mid Point is recalculated and Through Point is also updated to be equal to Mid Point.

Mid Point

3D Point (X, Y, Z coordinates)

Mid point on arc between Start Point and End Point.

End Point

3D Point (X, Y, Z coordinates)

Ending point of arc.

 

 

In hsCADCreator above properties are shown in the Selection Property Tree when an arc entity is selected using the Selection Tool.

ssarccollapsed
Click on image to see detail view.

 

To draw an Arc:

mouse_20 Entity toolbar :  

ssEntityArcSCE Arc(Start-Center-End)

ssEntityArcSCA Arc(Start-Center-Angle)  

ssEntityArcSCL Arc(Start-Center-Chord Length)

ssEntityArcSME Arc(Start-Middle-End)

 

mouse_20 Tool Menu : Create Ä Arc Ä Start - Center - End

Ä Start - Center - Angle

Ä Start - Center - Chord Length

Ä Start - Middle - End

 

 

 

See also:

       Start-Center-End Arc Tool

       Start-Center-Angle Arc Tool

       Start-Center-Chord Length Arc Tool

       Start-Middle-End Arc Tool