GM_CreateSwathSeparationImage – Global Mapper

Global Mapper SDK

Calculates and exports a Swath Separation Image (SSI) from the elevation differences between overlapping flight lines. The output image will be a grayscale intensity image with the shaded overlap image overlaid on top and blended at 50% translucency.

Syntax

C++

Copy

GM_Error_t32 __stdcall GM_CreateSwathSeparationImage
    (
    const char*                             aOutputImageFilename,   // IN: full path and file to SSI image that will be exported (type determined by extension)
    const GM_SwathSeparationImageSetup_t*   aSetup,                 // IN: settings for operation (if NULL, default options are used with all loaded Lidar)
    GM_LayerHandle_t32*                     aOutputLayer,           // OUT: handle to reloaded output layer saved here (if GM_SSI_LoadGeneratedImage provided)
    GM_LayerHandle_t32*                     aOverlapDiffGridLayer   // OUT: handle to delta-Z layer saved here (if GM_SSI_SaveOverlapDiffGridLayer provided)
    )