This field is set to one or more of the following symbols OR'd together to indicate which of the remaining fields of the structure are set. UF_LEGEND_INDEX_COLOR_WIDTH_ATTR UF_LEGEND_INDEX_COLOR_SMOOTH_ATTR
width_percent
int
The percentage of the legend area which the color index fills. The index is always on the right side default value: 30%
Switch indicating whether or not the color index represents smooth continuous colors or discrete color bands as follows: = TRUE -> smooth color index (default) = FALSE -> discrete color index.
num_values
int
Number of colors in index. Must be >= 2. Mandatory if color index is specified
values
double *
Array[num_values] in size. Scalar value associated as the starting value of each color in the index. Memory should not be freed until legend is deleted. Mandatory if color index is specified.
symbols OR'd together to indicate which of the
remaining fields of the structure are set.
UF_LEGEND_INDEX_COLOR_WIDTH_ATTR
UF_LEGEND_INDEX_COLOR_SMOOTH_ATTR