Hello. I am sorry because I can not good speak English.
I drawing a contour graph .Col(A) is my r datas, Col(B) is my theta datas and Col(c)is my function's datas. My region is a sectorial trench. But I am not drawing my region's boundary (it is dependend on r and theta). Namely, I want to draw my data boundary with my graphic. I am trying plot details-contouring ino-boundary R data with boundary theta data and I am selecting Col(C).But I have not a result.