In This Topic ▼

LBitmap::Spherize

Summary

Warps the image around a 3D spherical shape.

Syntax

#include "ltwrappr.h"

virtual L_INT LBitmap::Spherize(nValue, CenterPt, crFill, uFlags)

Parameters

L_INT nValue

Amount of stretching where:

Positive values: stretch the central pixels toward the edges.
Negative values: stretch the pixels toward the Center.
Valid values range is -500 to 500.

POINT CenterPt

POINT structure that contains the center of the sphere.

COLORREF crFill

The COLORREF value that specifies the fill color for any exposed areas.

L_UINT uFlags

Flags that indicate how to handle exposed areas outside the sphere and inside the sphere. You can use a bitwise OR ( | ) to specify one flag from each group.

The following are the flags that indicate how to handle exposed areas outside the sphere:

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.

The following are the flags that indicate how to handle exposed areas inside the sphere:

Value	Meaning
FILL_ROT	[0x0000] Rotate the image inside the sphere pattern.
FILL_WOUTROT	[0x0010] Fill exposed sphere pattern center as selected from exposed area process type flag.

This flag is ignored if the nValue is negative.

Returns

Value	Meaning
SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function will warp the image as a 3D spherical shape around the specified 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.

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.

Sphere Function - Before

Sphere Function - After

View additional platform support for this Sphere 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.

Example

L_INT LBitmap__SpherizeExample(LAnimationWindow * LAniWnd)  
{ 
    
   POINT   CenterPt;  
   CenterPt.x  =  (LAniWnd->GetHandle ())->Width/2;  
   CenterPt.y  =  (LAniWnd->GetHandle ())->Height/2;  
    
   return LAniWnd->Spherize(100, CenterPt,  0, FILL_RPT | FILL_WOUTROT);  
 
}