+++ Stacho Mudrak [05-01-10 14:03 +0100]:
Do you use different map symbol for this (dashed/dotted line)? If yes, we need to add another sumbols for that.
yes - it should be dashed, like a presumed wall. (or a presumed block wall, or a presumed border, or presumed anything)
I will send a separatemessage about this little drawing problem as it is an odd one which can perhaps be dealt with a different way,but it needs a diagram to explain.
OK, but having everything presumed or not brings another dimension to symbols - it can complicate things a lot. Adding one presumed symbol is OK, adding presumed versions of all symbols is not possible.
As you say, it should be a flag, not an additional type.
Having types and subtypes was an error in the therion concept in the beginning. Having only types and flags would be probably much better, but it is too late to change this.
Another example is visibility. We have visible flag for each symbol (on/off) but also we have wall -subtype invisible symbol. Both are doing the same :((
OK - changing therion this way would be easy - but converting existing data is difficult. I would be very happy if I could remove subtypes, but it would be quite substantial change...
It it really that difficult to write some perl conversion that would usually do the right thing? I think you are right that this was a design error and we should fix it if at all possible. There are not that many datasets now - in the future it will only get harder... I think we should say that this will change in 0.4 or something. If we can add the new functionality now/soon so that people can create new data in the new style, then that will make it easier to convert (because there will be a version that can cope with old and new data for people to use until they have converted). I don't want to break my dataset any more than necessary, but if changes are necessary for long-term growth, and we can design a reasonable transition, then it is probably worth doing. Wookey -- Aleph One Ltd, Bottisham, CAMBRIDGE, CB5 9BA, UK Tel +44 (0) 1223 811679 work: http://www.aleph1.co.uk/ play: http://www.chaos.org.uk/~wookey/