Category: Main North Line

  • Main North Line [11G]: Addington 7

    This is just a quick progress update. The refactoring is progressing well but the week is busy (week before Easter) with other things so not much is going to be done over the next few days. As my goal is to have all three pieces of Addington completed before doing any maps, it could be…

  • Main North Line [11F]: Addington 6; Otago Central Railway [62B]: Km Pegs 2

    So Addington is being more or less recreated from scratch. Doing the adjustment in the middle part (Addington North as it is called in my computer) covering the Main North Line going north to Riccarton was actually relatively quick and easy to fix, as with all the linked layers, moving one moved all the others,…

  • Main North Line [11E]: Addington 5

    Well, Friday has been a whole lot more mucking around to make various adjustments to all of the Addington stuff, mainly in the area of adjusting the masking for the partial images. This has resulted in needing to re-render all the partial map tiles which is a relatively slow process. Hence the maps have not…

  • Main North Line [11F]: Addington 6

    Today’s not-news is of yet another hold up in mapping. Because I made the stupendous discovery that some of the tracks aren’t lined up between the old and new aerial images. Unfortunately the nature of historical aerial imagery means that this is a risk. It’s my regret that the process I used did not pick…

  • Main North Line [11D]: Addington 4

    Welcome to our Facebook Group readers (NZRailMapz) as this will be the first entirely automated blog post sent to you, courtesy of IFTTT and the Buffer service. I already use IFTTT to syndicate  my posts on the NZRM Facebook page, but now they are expected to automagically feed to the group as well. Latest progress…

  • Main North Line [11C]: Addington 3

    So as of last night I have finished laying out the Addington North mosaics in Gimp. Today’s job is to mask off the relevant bits of the retro images, and then render the part and full images for Qgis. Whilst I have enough now to start mapping Addington, I have determined to do only two…

  • Main North Line [11B]: Addington 2

    The Addington mosaic has been a lot of fun. Working with so many large layers in one image is taxing on computer resources, and one relatively fast PC (its CPU is a Pentium G with 2 cores but no hyperthreading) with nothing else open and 16 GB of RAM is still quite slow working with…

  • Main North Line [11A]: Addington, etc

    Having completed sorting through aerial photos of the MNL and now having a complete set, the next task is to start doing stuff with the photos. The first thing that will happen is I will do a set of historical maps for Addington, as that is where the MNL starts. When I first started looking…

  • Main North Line [10]: Aerial Photography

    Most of the mapwork over the past few days has been with MNL aerial photography which has to be downloaded and then sorted through to pick up just the photos I want. This is a slow process because of the download limit of 3.5 GB per download from the Linz website and the number of…

  • Main North Line [9]: Nonoti

    Nonoti is a weirdly named little station in North Canterbury between Tormore and Mina. The exact distance is not recorded in the NZ Railway and Tramway Atlas, but it is between 116 and 117 km. The station closed in 1958. Around Nonoti a deviation was put in during the 1950s, apparently commissioned around 1961 (Don…