L_RippleBitmap (original) (raw)

Summary

Warps the image in concentric rings.

Syntax

#include "l_bitmap.h"

L_LTIMGSFX_API L_INT L_RippleBitmap (pBitmap, uAmplitude, uFrequency, nPhase, uAttenuation, CenterPt, crFill, uFlags)

Parameters

pBITMAPHANDLE pBitmap

Pointer to the bitmap handle that references the bitmap on which to apply the effect.

L_UINT uAmplitude

Wave magnitude(amount of displacement).

L_UINT uFrequency

Number of repeated waves along the radial line.

L_INT 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).

L_UINT 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.

POINT CenterPt

POINT structure that contains the center of the Ripple wave.

COLORREF 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.

L_UINT uFlags

Flag that indicates how to handle exposed areas. Possible values are:

Returns

Comments

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 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 in the Document and Medical Imaging toolkits.

To update a status bar or detect a user interrupt during execution of this function, refer to L_SetStatusCallback.

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.

Ripple Function - Before

Ripple Function - After

View additional platform support for this Ripple function.

Required DLLs and Libraries

• LTIMGSFX
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions

• L_AddBitmapNoise
• L_EmbossBitmap
• L_MosaicBitmap
• L_MotionBlurBitmap
• L_OilifyBitmap
• L_PosterizeBitmap
• L_RemoveRedeyeBitmap
• L_SolarizeBitmap
• L_UnderlayBitmap
• L_BendingBitmap
• L_CylindricalBitmap
• L_FreeHandShearBitmap
• L_FreeHandWaveBitmap
• L_PixelateBitmap
• L_ImpressionistBitmap
• L_PolarBitmap
• L_PunchBitmap
• L_RadialBlurBitmap
• L_RadWaveBitmap
• L_SpherizeBitmap
• L_SwirlBitmap
• L_WaveBitmap
• L_WindBitmap
• L_ZoomBlurBitmap
• L_ZoomWaveBitmap
• L_BumpMapBitmap
• L_CubismBitmap
• L_DrawStarBitmap
• L_DryBitmap
• L_FreePlaneBendBitmap
• L_FreeRadBendBitmap
• L_GlassEffectBitmap
• L_GlowFilterBitmap
• L_LensFlareBitmap
• L_LightBitmap
• L_OceanBitmap
• L_PlaneBendBitmap
• L_PlaneBitmap
• L_SampleTargetBitmap
• L_TunnelBitmap
• L_DlgRippler
• L_BricksTextureBitmap
• L_CanvasBitmap
• L_CloudsBitmap
• L_ColoredBallsBitmap
• L_DiffuseGlowBitmap
• L_DisplaceMapBitmap
• L_FragmentBitmap
• L_HalfTonePatternBitmap
• L_MaskConvolutionBitmap
• L_MosaicTilesBitmap
• L_OffsetBitmap
• L_PerspectiveBitmap
• L_PlasmaFilterBitmap
• L_PointillistBitmap
• L_RomanMosaicBitmap
• L_VignetteBitmap
• L_ZigZagBitmap

Topics

• Raster Image Functions: Doing Geometric Transformations
• Processing an Image
• Applying Artistic Effects
• Using Color Values in LEADTOOLS

Example

L_INT RippleBitmapExample(L_VOID) { L_INT nRet; BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */ POINT CenterPt; /* Load a bitmap at its own bits per pixel */ nRet = L_LoadBitmap(MAKE_IMAGE_PATH(TEXT("sample5.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL); if (nRet != SUCCESS) return nRet; /* Ripple bitmap*/ CenterPt.x = LeadBitmap.Width / 2; CenterPt.y = LeadBitmap.Height / 2; nRet = L_RippleBitmap(&LeadBitmap, 20, 10, 0, 0, CenterPt, 0, FILL_RPT); if (nRet != SUCCESS) return nRet; nRet = L_SaveBitmap(MAKE_IMAGE_PATH(TEXT("Result.BMP")), &LeadBitmap, FILE_BMP, 24, 0, NULL); if (nRet != SUCCESS) return nRet; //free bitmap if (LeadBitmap.Flags.Allocated) L_FreeBitmap(&LeadBitmap); return SUCCESS; }