Dimension Angular

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Angular dimensions measure the angle between two lines or three points.

Dimension Lines
If you use two straight, nonparallel lines to specify an angle, the dimension line arc spans the angle between the two lines. If the dimension line arc does not meet one or both of the lines being dimensioned, The program draws one or two extension lines to intersect the dimension line arc. The arc is always less than 180 degrees.

Dimension Circles and Arcs
If you use an arc or a circle or three points to specify an angle, the program draws the dimension line arc between the extension lines. The extension lines are drawn from the angle endpoints to the intersection of the dimension line arc.



The location that you specify for the dimension line arc determines the quadrant of the dimensioned angle.

New dimensions are created with the current dimension style.
To add angular dimension object into a drawing use following functions:

Function	Meaning
lcBlockAddDimAng	By 3 points and an arc point
lcBlockAddDimAng2	By 2 nonparallel lines and an arc point

Angular dimension object has the following properties:

Property	Type	Access	Meaning
LC_PROP_ENT_...    Base class properties
LC_PROP_DIM_STYLE	handle string	RW	Handle to dimension style Name of dimension style
LC_PROP_DIMANG_3PNT	bool	R	"3 points" mode
LC_PROP_DIMANG_2LINE	bool	R	"2 lines" mode
LC_PROP_DIMANG_APX	float	RW	Arc point X
LC_PROP_DIMANG_APY	float	RW	Arc point Y
LC_PROP_DIMANG_EXT1	bool	RW	Visibility of extention line 1
LC_PROP_DIMANG_EXT2	bool	RW	Visibility of extention line 2
LC_PROP_DIMANG_RAD	float	R	Radius of dimension arc
LC_PROP_DIMANG_TPOS	float	RW	Text position on arc
LC_PROP_DIM_TEXT	string	RW	User-supplied dimension text
LC_PROP_DIM_MEAS	float	R	Measured value
"3 points" mode
LC_PROP_DIMANG_CPX	float	RW	Center point X
LC_PROP_DIMANG_CPY	float	RW	Center point Y
LC_PROP_DIMANG_DP1X	float	RW	1st definition point X
LC_PROP_DIMANG_DP1Y	float	RW	1st definition point Y
LC_PROP_DIMANG_DP2X	float	RW	2nd definition point X
LC_PROP_DIMANG_DP2Y	float	RW	2nd definition point Y
"2 lines" mode
LC_PROP_DIMANG_L1P1X	float	RW	Line 1 point 1 X
LC_PROP_DIMANG_L1P1Y	float	RW	Line 1 point 1 Y
LC_PROP_DIMANG_L1P2X	float	RW	Line 1 point 2 X
LC_PROP_DIMANG_L1P2Y	float	RW	Line 1 point 2 Y
LC_PROP_DIMANG_L2P1X	float	RW	Line 2 point 1 X
LC_PROP_DIMANG_L2P1Y	float	RW	Line 2 point 1 Y
LC_PROP_DIMANG_L2P2X	float	RW	Line 2 point 2 X
LC_PROP_DIMANG_L2P2Y	float	RW	Line 2 point 2 Y

See also

  Retrieve objects