EZ
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3.28 The 3D Canvas Widget

The 3D-canvas widget realizes the EZ graphics library. To each 3DCanvas widget, there is an associated data structure called the graphics context which contains the entire state attributes of the graphics library. The graphics context is essentially private to the 3D-canvas widget and hence multiple 3Dcanvases is allowed in an application.

Widget Info

Symbolic widget type EZ_WIDGET_3D_CANVAS
Default class name "ThreeDCanvas"
Default instance name "threeDCanvas"

Widget Interface Routines

void EZ_Set3DCanvas( EZ_Widget *canvas);

make a canvas the current active one (GL context switch).

void EZ_Configure3DCanvas( EZ_Widget *widget);

update the state variables of the graphics context associated to a 3d canvas.

void EZ_GLConfig(void);

update the state variables of the current graphics context.

void EZ_Get3DCanvasSize(EZ_Widget *widget, int *w, int *h);

return the dimension of a 3d canvas.

XImage *EZ_Read3DCanvas2XImage(EZ_Widget *widget);

save the graphics window to an XImage.

void EZ_Save3DCanvas2PPMImage(EZ_Widget *widget, char *fname);

save the grahics window to disk as a PPM image.

void EZ_Save3DCanvas2PS(EZ_Widget *widget, char *fname);

save the graphics window to postscript.

Screenshot

Resources

Config_Option ResourceName DefaultValue
EZ_CLASS class ThreeDCanvas
EZ_NAME name threeDCanvas

EZ_X x
EZ_Y y
EZ_WIDTH width
EZ_HEIGHT height

EZ_LOCATION location
EZ_SIZE size
EZ_GEOMETRY geometry

EZ_WIDTH_HINT widthHint
EZ_HEIGHT_HINT heightHint
EZ_SIZE_HINT sizeHint

EZ_PROPAGATE propagate true

EZ_DESTROY_CALLBACK N/A null null
EZ_EVENT_HANDLER N/A null null

EZ_CLIENT_PTR_DATA N/A null
EZ_CLIENT_INT_DATA clientIntData 0

EZ_BACKING_STORE backingStore true
EZ_RESERVE_MENU_BUTTON reserveMenuButton false


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