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Line

Line

Types and Values

Object Hierarchy

    GBoxed
    ╰── GOLineDashSequence

Description

Functions

GO_ARROW_TYPE

#define GO_ARROW_TYPE (go_arrow_get_type())


go_line_dash_as_label ()

char const 		*
go_line_dash_as_label (GOLineDashType type);

Parameters

type

a GOLineDashType

 

Returns

a pointer to the user readable name of the dash type, or the name of GO_LINE_NONE if type is invalid. The returned string should not be freed.


go_line_dash_as_str ()

char const 		*
go_line_dash_as_str (GOLineDashType type);

Parameters

type

a GOLineDashType

 

Returns

a pointer to the nickname of the dash type, or "none" if type is invalid. The returning string should not be freed.


go_line_dash_from_str ()

GOLineDashType
go_line_dash_from_str (char const *name);

Parameters

name

Name of the dash type

 

Returns

a GOLineDashType corresponding to name, or GO_LINE_NONE if not found.


go_line_dash_get_length ()

double
go_line_dash_get_length (GOLineDashType type);

Parameters

type

GOLineDashType

 

Returns

the unscaled length of the dash sequence.


go_line_dash_get_sequence ()

GOLineDashSequence *
go_line_dash_get_sequence (GOLineDashType type,
                           double scale);

Parameters

type

a GOLineDashType

 

scale

dash scale

 

Returns

a struct containing the dash sequence corresponding to type , or NULL if type is invalid or equal to GO_LINE_NONE. The lengths are scaled according to scale .


go_line_dash_sequence_free ()

void
go_line_dash_sequence_free (GOLineDashSequence *sequence);

Frees the dash sequence struct.

Parameters

sequence

a GOLineDashSequence

 

go_line_interpolation_as_label ()

char const 		*
go_line_interpolation_as_label (GOLineInterpolation type);

Parameters

type

an interpolation type

 

Returns

a pointer to the label of type , or the name of GO_LINE_INTERPOLATION_LINEAR if type is invalid. The returned string should not be freed.


go_line_interpolation_as_str ()

char const 		*
go_line_interpolation_as_str (GOLineInterpolation type);

Parameters

type

an interpolation type

 

Returns

a pointer to the nickname of type , or "linear" if type is invalid. The returned string should not be freed.


go_line_interpolation_auto_skip ()

gboolean
go_line_interpolation_auto_skip (GOLineInterpolation type);

Parameters

type

an interpolation type

 

Returns

TRUE if the line interpolation type forces skipping invalid data, FALSE if it is only optional.


go_line_interpolation_from_str ()

GOLineInterpolation
go_line_interpolation_from_str (char const *name);

Parameters

name

an interpolation type nickname

 

Returns

a GOLineInterpolation corresponding to name , or GO_LINE_INTERPOLATION_LINEAR if not found.


go_line_interpolation_supports_radial ()

gboolean
go_line_interpolation_supports_radial (GOLineInterpolation type);

Parameters

type

an interpolation type

 

Returns

TRUE if the line interpolation type can be used with radial axes set, FALSE if it can't.

Types and Values

GOLineDashSequence

typedef struct {
	double		 offset;
	unsigned int	 n_dash;
	double		*dash;
} GOLineDashSequence;

Members

double offset;

offset from start.

 

unsigned int n_dash;

number of values in dash fields

 

double *dash;

lengths of the dashes segments. See cairo_set_dash() for details.

 
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