Global Mapper SDK
| GM_EqualValueAreaSetup_t Fields |
The GM_EqualValueAreaSetup_t type exposes the following members.
| Name | Description | |
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mAreaType | Area type to assign to area features |
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mBounds | Bounds to create in (empty means all) |
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mColorDist | Allowed fudge factor for colors |
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mColorList | List of colors to consider (NULL for all) |
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mColorListSize | Number of colors in the list of colors to consider |
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mElevDist | Allowed difference for elevations |
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mElevRangeHigh | (meters) highest elevation to consider if GM_EqualValueArea_UseElevRange is in mFlags |
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mElevRangeLow | (meters) lowest elevation to consider if GM_EqualValueArea_UseElevRange is in mFlags |
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mFlags | Flags controlling the operation |
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mLayerDesc | Name of the resulting layer |
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mMinAreaSizeSqM | minimum size of area feature to keep. Any area featurs smaller than this will be marked as deleted |
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mMinHoleSizeSqM | (square meters) minimum size of island/hole area to keep. Any islands smaller than this will be marked as deleted |
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mSimplifyMult | simplification threshold multiplier for simplifying results. The simplification threshold will be the 'pixel_spacing * mSimplifyMult'. Use 0.0 to just remove vertices along straight edges |
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mSlopeDist | Allowed difference for slopes |
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mSmoothCount | how many times to smooth resulting features. Use 0 to disable smoothing passes |
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mValAttrFormat | Formatting string to use for value attribute (NULL is default, can be C-style format string like "RGB( %d, %d, %d )" or "#%02X%02X%02X"). Must have 3 values for color, 1 for slope or elevation |
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mValAttrName | Name of attribute to save value (color/elev/slope) in |