LBitmap::Ripple
#include "ltwrappr.h"
virtual L_INT LBitmap::Ripple (uAmplitude, uFrequency, nPhase, uAttenuation, CenterPt, crFill, uFlag)
L_UINT uAmplitude; |
/* wave's magnitude */ |
L_UINT uFrequency; |
/* number of repeated waves */ |
L_INT nPhase; |
/* wave phase shift */ |
L_UINT uAttenuation; |
/* amplitude decay rate */ |
POINT CenterPt; |
/* effect center */ |
COLORREF crFill; |
/* color value */ |
L_UINT uFlag; |
/* flag */ |
Warps the image in concentric rings. This function is available in the Raster Pro and above toolkits.
Parameter |
Description |
|
uAmplitude |
Wave magnitude(amount of displacement). |
|
uFrequency |
Number of repeated waves along the radial line. |
|
nPhase |
Wave phase shift, in hundredths of degrees. The valid range is from –36000 to 36000 (The value in degrees is nPhase divided by 100). |
|
uAttenuation |
Attenuation value. The attenuation value indicates how rapidly the wave amplitude decays as the wave travels along the radial line. The values range from 0 - 1000. |
|
CenterPt |
POINT structure that contains the center of the Ripple wave. |
|
crFill |
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. |
|
uFlag |
Flag that indicates how to handle exposed areas. Possible values are: |
|
|
Value |
Meaning |
|
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. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function will warp the image as a series of rings radiating out from the CenterPt. The center point must be defined inside the bitmap or inside the region, if the bitmap has a region.
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.
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.
Required DLLs and Libraries
LTIMG For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
See Also
Example
void MyTestFunction(LAnimationWindow * LAniWnd)
{
POINT CenterPt;
CenterPt.x = (LAniWnd->GetHandle ())->Width/2;
CenterPt.y = (LAniWnd->GetHandle ())->Height/2;
LAniWnd->Ripple(20, 10, 0, 0, CenterPt, 0, FILL_RPT);
}