I am sorry, but I am not sure whether I understand your questions properly. Could you please send me two images for each of your problems - to be sure we understand correctly: First: how does therion renders area flowstone in the water Second: how you would like it to be rendered But if I understand your questions correctly, you need to redefine flowstone line symbol to - clean the area surrounded by line flowstone, if the line is closed (same case as rock-border) - clean the area below small arcs If you will use following metapost code in your layout, it should at least partially help you. code metapost def l_flowstone (expr P) = if cycle P: thclean P fi; T:=identity; cas := 0; dlzka := arclength P; mojkrok:=adjust_step(dlzka, .7u); pickup PenC; t1:=0; forever: t2 := arctime (cas + mojkrok) of P; thclean (point t1 of P){dir (angle(thdir(P,t1)) + 60)} .. {dir (angle(thdir(P,t2)) - 60)}(point t2 of P) -- cycle; thdraw (point t1 of P){dir (angle(thdir(P,t1)) + 60)} .. {dir (angle(thdir(P,t2)) - 60)}(point t2 of P); cas := cas + mojkrok; exitif cas > dlzka + (mojkrok / 3); % for rounding errors t1:=t2; endfor; enddef; endcode HTH, S. Quoting Joke Vansweevelt <joke.vansweevelt@gmail.com>:
I'm working on a topo of a water-cave and I have two questions.
- How can I stop a flowstone-feature to be filled with water? (In the water, defined by "area-water", I sometimes have features that I would like to stay clear of the water-filling-stripes. If I try to include the borders of this feature as borderlines of my "area-water", usually my whole image gets distorted (not-water areas suddenly become partly filled with water-filling-stripes etc.). It doesn't work either by defining these features as an area within the area-water (error). Objects defined by rock-border don't have to be specified as area border. Rocks are automatically not filled with water-filling-stripes. However, in the case of flowstone features, I would like to be able to define whether they should or should not be filled with water-filling-stripes. In case it isn't possible so far, a solution could maybe be to define flowstone that doesn't need to be filled with water as "line-rock-subtype flowstone"?!?)
- How can I get the borders of "line-flowstone" in my X-Therion drawing to match the borders of my flowstone-feature in the produced pdf-file? (When some of my area borders are defined as "line-flowstone", in the produced pdf-file, the water tends to invade my flowstone (as far as the borders of the "line-flowstone" that I set within X-Therion). The problem here is that the produced drawing of the flowstone lines is larger than the borders one sets in X-Therion (the scale that I work with for the pdf-file is 1 1000).
Regards,
Joke