Gwyddion – Free SPM (AFM, SNOM/NSOM, STM, MFM, …) data analysis software

GwyGraph

GwyGraph — Widget for displaying graphs

Functions

GtkWidget * gwy_graph_new ()
GwyAxis * gwy_graph_get_axis ()
void gwy_graph_set_axis_visible ()
GtkWidget * gwy_graph_get_area ()
void gwy_graph_set_model ()
GwyGraphModel * gwy_graph_get_model ()
void gwy_graph_set_status ()
GwyGraphStatusType gwy_graph_get_status ()
void gwy_graph_enable_user_input ()
GdkPixbuf * gwy_graph_export_pixmap ()
GString * gwy_graph_export_postscript ()

Properties

GwyGraphModel * model Read / Write

Types and Values

struct GwyGraph
struct GwyGraphClass

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkObject
            ╰── GtkWidget
                ╰── GtkContainer
                    ╰── GtkTable
                        ╰── GwyGraph

Implemented Interfaces

GwyGraph implements AtkImplementorIface and GtkBuildable.

Includes

#include <libgwydgets/gwydgets.h>

Description

GwyGraph is a basic widget for displaying graphs. It consists of several widgets that can also be used separately (at least in principle): GwyGraphArea forms the main part of the graph, GwyAxis is used for the axes, GwyGraphLabel represents the key and GwyGraphCorner is a dummy widget (at this moment) used for graph corners.

Persisent graph properties and data are represented with GwyGraphModel. Changes to the model are automatically reflected in the graph.

Functions

gwy_graph_new ()

GtkWidget *
gwy_graph_new (GwyGraphModel *gmodel);

Creates graph widget based on information in model.

Parameters

gmodel

A graph model.

 

Returns

new graph widget.

gwy_graph_get_axis ()

GwyAxis *
gwy_graph_get_axis (GwyGraph *graph,
                    GtkPositionType type);

Gets a graph axis.

Parameters

graph

A graph widget.

 

type

Axis orientation

 

Returns

The axis (of given orientation) within the graph widget.

gwy_graph_set_axis_visible ()

void
gwy_graph_set_axis_visible (GwyGraph *graph,
                            GtkPositionType type,
                            gboolean is_visible);

Sets the visibility of graph axis of given orientation. Visibility can be set also directly using GwyAxis API.

Parameters

graph

A graph widget.

 

type

Axis orientation

 

is_visible

set/unset axis visibility within graph widget

 

gwy_graph_get_area ()

GtkWidget *
gwy_graph_get_area (GwyGraph *graph);

Gets the area widget of a graph.

Parameters

graph

A graph widget.

 

Returns

The graph area widget within the graph.

gwy_graph_set_model ()

void
gwy_graph_set_model (GwyGraph *graph,
                     GwyGraphModel *gmodel);

Changes the model a graph displays.

Everything in graph widgets will be reset to reflect the new data.

Parameters

graph

A graph widget.

 

gmodel

New graph model

 

gwy_graph_get_model ()

GwyGraphModel *
gwy_graph_get_model (GwyGraph *graph);

Gets the model of a graph.

Parameters

graph

A graph widget.

 

Returns

The graph model this graph widget displays.

gwy_graph_set_status ()

void
gwy_graph_set_status (GwyGraph *graph,
                      GwyGraphStatusType status);

Sets the status of a graph widget.

The status determines how the graph reacts on mouse events. This includes point or area selection and zooming.

Parameters

graph

A graph widget.

 

status

graph status

 

gwy_graph_get_status ()

GwyGraphStatusType
gwy_graph_get_status (GwyGraph *graph);

Get the status of a graph widget.

See gwy_graph_set_status() for more.

Parameters

graph

A graph widget.

 

Returns

The current graph status.

gwy_graph_enable_user_input ()

void
gwy_graph_enable_user_input (GwyGraph *graph,
                             gboolean enable);

Enables/disables all the graph/curve settings dialogs to be invoked by mouse clicks.

Parameters

graph

A graph widget.

 

enable

whether to enable user input

 

gwy_graph_export_pixmap ()

GdkPixbuf *
gwy_graph_export_pixmap (GwyGraph *graph,
                         gboolean export_title,
                         gboolean export_axis,
                         gboolean export_labels);

Renders a graph widget into a pixbuf.

Parameters

graph

A graph widget.

 

export_title

TRUE to export graph title. Currently unimplemented.

 

export_axis

TRUE to export graph axes. Currently unimplemented.

 

export_labels

TRUE to export graph labels. Currently unimplemented.

 

Returns

A newly created pixbuf.

gwy_graph_export_postscript ()

GString *
gwy_graph_export_postscript (GwyGraph *graph,
                             gboolean export_title,
                             gboolean export_axis,
                             gboolean export_labels,
                             GString *str);

Approximately renders a graph widget in PostScript.

Parameters

graph

A graph widget.

 

export_title

TRUE to export graph title. Currently unimplemented.

 

export_axis

TRUE to export graph axes. Currently unimplemented.

 

export_labels

TRUE to export graph labels. Currently unimplemented.

 

str

String to put the PostScript representation to, or NULL to allocate a new string.

 

Returns

Either string or a newly created GString.

Types and Values

struct GwyGraph

struct GwyGraph;

struct GwyGraphClass

struct GwyGraphClass {
    GtkTableClass parent_class;

    void (*reserved1)(void);
    void (*reserved2)(void);
    void (*reserved3)(void);
    void (*reserved4)(void);
};

Property Details

The “model” property

  “model”                    GwyGraphModel *

The graph model of the graph.

Flags: Read / Write

Since: 2.7

© David Nečas and Petr Klapetek

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