DUAL SOURCE MAPPING

 Top corner of sheet two. This is starting to look quite useful. I don’t remember ever going to Hungerford, but definitely worth a visit. They still have a “common” from medieval times.

There were several country estates in 1900, different sizes, some with hunting forests attached. Memories of a very different world. Lord of the manor, farming villages, the railway has arrived like a whirlwind. Change is coming.

Hungerford lies at the junction of the River Kennet and it’s tributary the Dun. Ultimately this water all flows East through Reading then on to the Thames and London. The roads and the railway follow the same route in parallel.

 

 

Due West lies Bath, with Bristol beyond. Branch slightly South and you are heading to Somerset, Devon, Cornwall. I know all this stuff, but it’s been coming to life more vividly as I work on the map in Revit.

It’s taken a lot longer than expected, I mean really a lot, lot longer. That’s OK, just as long as I keep learning along the way. But before too long I must get back to the business of building massing models of typical churches.

 

Extracts from my two main mapping sources for Hungerford. Open Street Map shown above with its 1km grid. I have captured every second grid in my Revit model, so squares of 2km x 2km. The National Library of Scotland map below based on Ordinance Survey maps for 1888-1913 which I am coding as OS 1900.  

I took screenshots from both sources. For the OS 1900 map, you can see the sheet edges where it has been pieced together. Maybe there is a way to switch on a grid that matches the other source, but I didn’t see it.  I tweaked the tint of each jpg with the default Windows image viewer/editor to give alternating squares of pink and green.  Some mistakes along the way, but I was able to line the sheets up fairly well (a lot of them)  Sadly there seems to be a cumulative error when you trace over this compared to the OSM map with its more convincing  and consistent 1km squares

So I have separate views in Revit for these two sources, using OSM as primary and doing some ad hoc adjustments to the pink and green  OS 1900 images as the work proceeds.  Many of the country estates have gone bankrupt by now or handed over to National Trust and shrunk in size perhaps. I’m showing what was there in 1900.  Now this is a labour of love, but it is heavy going so I have to make a judgement in terms of accuracy.  The boundaries of diocese, deanery and benefice are highly abstracted. That was my starting point.

 

 

I am now showing roads and rivers with much more concern for the detailed twists and turns than I ever imagined. (I didn’t really have a plan for showing them at all at first)  I was forced into this as a way to crosscheck the alignment of my two sources on their separate sheets.  The model lines, (roads, rivers, rail) generic model map pins (churches) and the Revit floors / property boundaries (benefices, deaneries etc) are common to all views.  The snapshots of the maps are jpegs and view specific.

So I toggle between the two views, toiling away each day but gaining enormous insights into my chosen place of retirement.  A rectangle from Hungerford to Reading and descending to the South coast. Southampton to Chichester.  There is a pale grey filled region with transparency applied to fade the jpegs down so I can see more clearly. Not a Masking Region because that would also fade the 3d elements, a subtle distinction between those two kinds of region in Revit.