WRAPPER_TEST_INIT Procedure

Initializes a JWAVE wrapper function test.

WRAPPER_TEST_INIT, wrapper_name [, width, height ]

wrapper_name A string containing the name of the wrapper function that you wish to test.

width, height (optional) Specifies the width and height of the graphics window, in pixels.

Before using the other WRAPPER_TEST_* routines, you must execute WRAPPER_TEST_INIT.

If width and height are not set, then WRAPPER_TEST_EXECUTE does not display a plot, even if the JWAVE wrapper returns a graphic. If width and height are set, a PV-WAVE window appears even if the JWAVE wrapper does not return any graphics.

The following lines demonstrate the use of the WRAPPER_TEST_* commands to test a JWAVE wrapper called testplot.pro. You can find this wrapper in:

(UNIX)VNI_DIR/jwave-3_0/lib/user

(Windows)VNI_DIR\jwave-3_0\lib\user

where VNI_DIR is the main Visual Numerics installation directory.

WAVE WRAPPER_TEST_INIT, 'TESTPLOT', 400, 300 
WAVE WRAPPER_TEST_SETCOLOR, 'BACKGROUND', '919191'xL 
WAVE WRAPPER_TEST_SETCOLOR, 'LINE', 'ff0000'xL 
WAVE WRAPPER_TEST_SETCOLOR, 'SYMBOLS', $ 
    ['ff00ff'xL, '00ffff'xL, 'ffff00'xL], /Color_Set 
WAVE WRAPPER_TEST_SETPARAM, 'DATA', HANNING(20) 
WAVE WRAPPER_TEST_SETPARAM, 'SYMBOL', 1 
WAVE WRAPPER_TEST_EXECUTE 

(At this point, the returned graphic appears in a PV-WAVE graphics window.)

WAVE WRAPPER_TEST_RETURN_INFO 
            DATA            INT       =        0

The following lines demonstrate, additionally, the use of the function WRAPPER_TEST_GETRETURN. Here, the simple.pro wrapper is used. This wrapper returns the square root of the input parameter. You can find this procedure in the same directory as testplot.pro, described previously. This wrapper only returns a numerical result and not graphics.

WAVE WRAPPER_TEST_INIT, 'SIMPLE' 
WAVE WRAPPER_TEST_SETPARAM, 'NUMBER', 2 
WAVE WRAPPER_TEST_EXECUTE 
WAVE PRINT, WRAPPER_TEST_GETRETURN('DATA') 
                1.41421
WAVE WRAPPER_TEST_RETURN_INFO 
            DATA            FLOAT     =       1.41421

WRAPPER_TEST_EXECUTE, WRAPPER_TEST_RETURN_INFO, WRAPPER_TEST_SETCOLOR, WRAPPER_TEST_SETPARAM