Radially distorts the bitmap by creating waves that twist the image around a specified center.
L_INT LBitmap::ZigZag(uAmplitude, uAttenuation, uFrequency, nPhase, CenterPt, crFill, uFlags)
Non-zero value that represents the magnitude of the wave (amount of displacement), if ZG_RAD is set in the uFlags parameter. The valid range is from 1 - 100.
Attenuation value. The attenuation value indicates how rapidly the wave amplitude decays as the wave travels along the radial line. The valid range is from 0 - 1000.
Number of times the waves repeat along the radial line.
Wave phase shift, in hundredths of degrees. The valid range is from -36000 to 36000 (The value in degrees is nPhase divided by 100).
POINT structure that contains the center of the zigzag wave.
The COLORREF value that specifies the fill color for any exposed areas. You can specify a COLORREF value, such as the return value of the Windows RGB macro, or you can use the PALETTEINDEX macro to specify a palette color.
Flags that indicate how to handle exposed areas, and the wave radiation type. You can use a bitwise OR ( | ) to specify one flag from each group.
|FILL_CLR||[0x0000] Fill any exposed areas with crFill.|
|FILL_RPT||[0x0001] Stretch the image edges to fill the exposed area.|
|FILL_NOCHG||[0x0002] Leave the exposed area as is, without changing it.|
|ZG_RAD||[0x0000] Create distortion waves around the CenterPt.|
|ZG_POND||[0x0010] Create distortion waves that resemble the ripples in a pond.|
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
If the bitmap has a region, the effect will be applied on the region only.
This function supports 12- and 16-bit grayscale and 48- and 64-bit color images. Support for 12- and 16-bit grayscale and 48- and 64-bit color images is available only in the Document/Medical toolkits.
To update a status bar or detect a user interrupt during execution of this function, refer to LBase::EnableStatusCallback.
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
ZigZag Function - Before
ZigZag Function - After
View additional platform support for this ZigZag function.
Apply ZigZag waves from the center of the image
L_INT LBitmap__ZigZagExample(LBitmapWindow m_LBitmapWnd)
CenterPt.x = m_LBitmapWnd.GetWidth()/2;
CenterPt.y = m_LBitmapWnd.GetHeight()/2;
nRet = LeadBitmap.Load(MAKE_IMAGE_PATH(TEXT("sample5.cmp")), 0,ORDER_BGR);
if(nRet != SUCCESS)
nRet = LeadBitmap.ZigZag(50, 1000, 10, 0, CenterPt, 0, FILL_RPT | ZG_POND);
if(nRet != SUCCESS)
Medical Web Viewer .NET
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