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Gwyddion Widgets Library Reference Manual | ![]() |
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GwyGraphCurveModel; GwyGraphCurveModelClass; #define gwy_graph_curve_model_duplicate (gcmodel) GwyGraphCurveModel* gwy_graph_curve_model_new (void); void gwy_graph_curve_model_set_data (GwyGraphCurveModel *gcmodel, const gdouble *xdata, const gdouble *ydata, gint n); void gwy_graph_curve_model_set_data_from_dataline (GwyGraphCurveModel *gcmodel, GwyDataLine *dline, gint from_index, gint to_index); const gdouble* gwy_graph_curve_model_get_xdata (GwyGraphCurveModel *gcmodel); const gdouble* gwy_graph_curve_model_get_ydata (GwyGraphCurveModel *gcmodel); gint gwy_graph_curve_model_get_ndata (GwyGraphCurveModel *gcmodel); gboolean gwy_graph_curve_model_get_x_range (GwyGraphCurveModel *gcmodel, gdouble *x_min, gdouble *x_max); gboolean gwy_graph_curve_model_get_y_range (GwyGraphCurveModel *gcmodel, gdouble *y_min, gdouble *y_max);
"color" GwyRGBA : Read / Write "description" gchararray : Read / Write "line-style" GdkLineStyle : Read / Write "line-width" gint : Read / Write "mode" GwyGraphCurveType : Read / Write "point-size" gint : Read / Write "point-type" GwyGraphPointType : Read / Write
GwyGraphCurveModel represents information about a graph curve necessary to fully reconstruct it.
typedef struct { GObjectClass parent_class; void (*data_changed)(GwyGraphCurveModel *model); void (*reserved1)(void); void (*reserved2)(void); void (*reserved3)(void); } GwyGraphCurveModelClass;
#define gwy_graph_curve_model_duplicate(gcmodel)
Convenience macro doing gwy_serializable_duplicate()
with all the necessary
typecasting.
gcmodel : |
A graph curve model to duplicate. |
GwyGraphCurveModel* gwy_graph_curve_model_new (void);
Creates a new graph curve model.
Returns : | New empty graph curve model as a GObject. |
void gwy_graph_curve_model_set_data (GwyGraphCurveModel *gcmodel, const gdouble *xdata, const gdouble *ydata, gint n);
Sets curve model data. Curve model will make a copy of the data, so you are responsible for freeing the original arrays.
gcmodel : |
A graph curve model. |
xdata : |
x data points (array of size n )
|
ydata : |
y data points (array of size n )
|
n : |
data array size (number of data points) |
void gwy_graph_curve_model_set_data_from_dataline (GwyGraphCurveModel *gcmodel, GwyDataLine *dline, gint from_index, gint to_index);
Sets the curve data from GwyDataLine. The range of import can be
modified using parameters from_index
and to_index
that are
interpreted directly as data indices within the GwyDataLine.
In the case that from_index
== to_index
, the full GwyDataLine is used.
gcmodel : |
A graph curve model. |
dline : |
A GwyDataLine |
from_index : |
index where to start |
to_index : |
where to stop |
const gdouble* gwy_graph_curve_model_get_xdata (GwyGraphCurveModel *gcmodel);
Gets pointer to x data points.
Data are used within the graph and cannot be freed.
gcmodel : |
A graph curve model. |
Returns : | X data points, owned by the curve model. |
const gdouble* gwy_graph_curve_model_get_ydata (GwyGraphCurveModel *gcmodel);
Gets pointer to y data points.
Data are used within the graph and cannot be freed.
gcmodel : |
A graph curve model. |
Returns : | Y data points, owned by the curve model. |
gint gwy_graph_curve_model_get_ndata (GwyGraphCurveModel *gcmodel);
gcmodel : |
A graph curve model. |
Returns : | number of data points within the curve data |
gboolean gwy_graph_curve_model_get_x_range (GwyGraphCurveModel *gcmodel, gdouble *x_min, gdouble *x_max);
Gets the abscissa range of a graph curve.
The values are cached in the curve model therefore repeated calls to this function (with unchanged data) are cheap.
If there are no data points in the curve, x_min
and x_max
are untouched
and the function returns FALSE
.
gboolean gwy_graph_curve_model_get_y_range (GwyGraphCurveModel *gcmodel, gdouble *y_min, gdouble *y_max);
Gets the ordinate range of a graph curve.
The values are cached in the curve model therefore repeated calls to this function (with unchanged data) are cheap.
If there are no data points in the curve, x_min
and x_max
are untouched
and the function returns FALSE
.
description
" property"description" gchararray : Read / Write
Curve description. It appears on graph key.
Default value: "curve"
line-style
" property"line-style" GdkLineStyle : Read / Write
Curve line style. Curve mode has to include lines for the line to be visible.
Default value: GDK_LINE_SOLID
line-width
" property"line-width" gint : Read / Write
Curve line width.
Allowed values: [0,100]
Default value: 1
mode
" property"mode" GwyGraphCurveType : Read / Write
Curve plotting mode (line, points, ...).
Default value: GWY_GRAPH_CURVE_LINE
point-size
" property"point-size" gint : Read / Write
Curve point symbol size.
Allowed values: [0,100]
Default value: 5
point-type
" property"point-type" GwyGraphPointType : Read / Write
Curve point symbol type. Curve mode has toinclude points for the symbols to be visible.
Default value: GWY_GRAPH_POINT_SQUARE
void user_function (GwyGraphCurveModel *gwygraphcurvemodel, gpointer user_data) : Run First
The ::data-changed signal is emitted whenever curve data is set with
a function like gwy_graph_curve_model_set_data()
.
gwygraphcurvemodel : |
The GwyGraphCurveModel which received the signal. |
user_data : |
user data set when the signal handler was connected. |