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Hi everyone,
I sent the following question to gtk-list but no
one seems to know the answer, so I'm trying here just in case. BTW what am
I meant to do if no one on these mailing lists can help? Does anyone know
how I can contact whoever implemented the gtk_curve widget?
Anyway here goes:
>I wonder if you could help me with a problem
I'm having with the gtk_curve widget.
>I want to use a curve to control and edit the
animation of a character in an avatar customisation application. Editing
the spline curve and getting points from the >curve using
gtk_curve_get_vector works fine. However it is important to be able
to save and reload the curves. To test reloading I have defined an
array of gfloats
>gfloat start[]={0.0, 10.0, 50.0, 100.0, 180.0}; >and I would like to set up a spline curve using
these points. I realise that gtk_curve_set_vector sets the curve type to
GTK_CURVE_TYPE_FREE so I then set the >curve type to
GTK_CURVE_TYPE_SPLINE.
>Here's the code:
> curveY =
gtk_curve_new ();
> gtk_box_pack_start(GTK_BOX(box1), curveY, TRUE, TRUE, 2); > gtk_curve_set_range(GTK_CURVE (curveY), 0.0, 200.0, -180.0, 180.0); > gtk_curve_set_vector (GTK_CURVE (curveY), 5, start); > gtk_curve_set_curve_type(GTK_CURVE (curveY), GTK_CURVE_TYPE_SPLINE); > gtk_widget_show(curveY); >Unfortunately this doesn't work... >If I miss out the gtk_curve_set_curve_type then I get five straight lines at the right height for the five values in the array, so I assume the proble is in the conversion >form free to spline curve type. >Please help! Thanks in advance, Alex Daltas |