ST_SetColorTable

设置raster对象的指定波段的颜色表信息,采用颜色表的JSON格式。

语法

raster ST_SetColorTable(raster rast, integer band_sn, cstring clb);

参数

参数名称

描述

rast

raster对象。

band_sn

指定的波段序号,从0开始。

clb

颜色表的JSON格式,参见ST_ColorTable

示例

update rast set rast=ST_SetColorTable(rast,0, 
'{"compsCount":4,
  "entries":[
    {"value":0,"c1":0,"c2":0,"c3":0,"c4":255},
    {"value":1,"c1":0,"c2":0,"c3":85,"c4":255},
    {"value":2,"c1":0,"c2":0,"c3":170,"c4":255}
  ]
}');

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