About the black dots in the contours figure

[niuniu]

Dear Sir/Madam,

When I want to display the deposition result , the menu is Concentration->Display->Concentration->Contours, there are some black dots in the result figure, but the legend does not include the black color. So these black dots may cause some wrong understanding about the result. I want to know what is the meaning of these black dots? Is the outline of plume? if it is true, how can I hide these black outline in the figure? I have attached the pic.

Many Thanks.

[glenn.rolph]

The black dots are the contour outlines. You can turn these off in the Concentration Display GUI by setting the "Contour drawing options:" to None. If you are using a script, change the -k option of concplot to -k2