MIL_ID BufId, | //in |
MIL_DOUBLE RedOrMonoVal, | //in |
MIL_DOUBLE GreenVal, | //in |
MIL_DOUBLE BlueVal, | //in |
MIL_ID CondBufId, | //in |
MIL_INT64 Condition, | //in |
MIL_DOUBLE CondValue | //in |
This function clears a buffer to the specified color (the clear color), modifying only those entries of the buffer which have a corresponding entry in the condition buffer that satisfies the specified condition. Other entries are unchanged.
The clear color is specified by RedOrMonoVal, GreenVal, and BlueVal. If the buffer is one-band, only RedOrMonoVal is used. The clear color is treated as if it had the same type and depth as the buffer.
Note that if a 1-band condition buffer is used with a 3-band buffer, the one band of the condition buffer will be used for each band in the buffer to clear.
For an image buffer, the clear can be limited to a region of interest (ROI) set using MbufSetRegion().
Specifies the identifier of the data buffer to conditionally clear. If you specify an image buffer, it can have an ROI set using MbufSetRegion(). The ROI must be defined in raster format (M_RASTER or M_VECTOR_AND_RASTER). An error is generated if the ROI is only in vector format (M_VECTOR).
Specifies the identifier of the condition buffer. If you specify an image buffer, it can have a region of interest (ROI) associated with it, but it must be a raster region. Using an image buffer with an other type of ROI will cause an error.
Specifies the condition for which the condition buffer is tested. This parameter can be set to one of the following:
For specifying the condition for which
the buffer is tested
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Value | Description
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M_DEFAULT |
Modify destination buffer entries corresponding to condition buffer entries that are non-zero. |
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M_EQUAL |
Modify destination buffer entries corresponding to condition buffer entries that are equal to CondValue. |
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M_NOT_EQUAL |
Modify destination buffer entries corresponding to condition buffer entries that are not equal to CondValue. |
Specifies the color value for the specified condition. Even though this value is of type MIL_DOUBLE, it is treated as if it had the same type and depth as the condition buffer. If the Condition parameter is set to M_DEFAULT, CondValue is ignored.
For a 3-band condition buffer, this parameter can be set to one of the following color values:
For specifying a color value
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Value |
Description
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Specifies an RGB value. (more details...) |
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Parameters | |||||||||||||||||||||||||||||||||||||||
Specifies the red component, as a value between 0 and 255. |
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Specifies the green component, as a value between 0 and 255. |
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Specifies the blue component, as a value between 0 and 255. |
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M_COLOR_BLACK |
Specifies the color black. |
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M_COLOR_BLUE |
Specifies the color blue. |
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M_COLOR_BRIGHT_GRAY |
Specifies the color bright gray. |
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M_COLOR_CYAN |
Specifies the color cyan. |
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M_COLOR_DARK_BLUE |
Specifies the color dark blue. |
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M_COLOR_DARK_CYAN |
Specifies the color dark cyan. |
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M_COLOR_DARK_GREEN |
Specifies the color dark green. |
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M_COLOR_DARK_MAGENTA |
Specifies the color dark magenta. |
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M_COLOR_DARK_RED |
Specifies the color dark red. |
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M_COLOR_DARK_YELLOW |
Specifies the color dark yellow. |
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M_COLOR_GRAY |
Specifies the color gray. |
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M_COLOR_GREEN |
Specifies the color green. |
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M_COLOR_LIGHT_BLUE |
Specifies the color light blue. |
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M_COLOR_LIGHT_GRAY |
Specifies the color light gray. |
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M_COLOR_LIGHT_GREEN |
Specifies the color light green. |
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M_COLOR_LIGHT_WHITE |
Specifies the color light white. |
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M_COLOR_MAGENTA |
Specifies the color magenta. |
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M_COLOR_RED |
Specifies the color red. |
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M_COLOR_WHITE |
Specifies the color white. |
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M_COLOR_YELLOW |
Specifies the color yellow. |
For a 1-band or 3-band condition buffer, you can set this parameter to the following grayscale value:
For specifying a grayscale value to be
used with all bands
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Value | Description
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Value |
Specifies an entry value. (more details...) |
Header | Include mil.h. |
Library | Use mil.lib. |
DLL | Requires mil.dll. |