I've branched this from Converting Inkscape Drawings of very large caves intoTherion: I have experienced the stretch using 2 points, and where I have tried this is always solved by adding more points and scraps were needed, but the inside out part I do get more often. I have tried splitting into more scraps, and splitting the lines. The former works totally or reduces the incorrect bit, however a side affect is that the model is not as neat as it should be as the lox model has a 'step' on the scrap join. As demonstrated by the 2 attached set of files. But currently all this is a bit random, and the moving to a new scrap is very tedious, it would be good to have some understanding of the problems, so they could be avoided? Andrew On 24/02/11 18:47, Bruce wrote:
Simple scrap, but why does my lox model appear to only show the walls when seen from the wrong side?
I have checked that the wall lines all have the yellow tick pointing inside the passage. But half my passage appears in the Loch viewer to only show the wall from the inside face, not from outside the model.
Very simple data file contents are as follows. The survey stations are being imported from a survex 3D file. But I am only using 2 survey points to scale the scrap, so you should be able to create any two points to substitute the survey data.
I have done this with scanned paper files a number of times.
Always if I use two points the lox files come out as you describe, or with vertical extensions from the actual cave position to the surface.
A solution that has worked once, but not tested yet on the others is two break the drawing into more than one scrap, and have at least two points per scrap. This way the therion drawings and lox come out the same as with a conventional survey.
It seems that two points, one scrap is too minimalist for the current implementation.
Bruce