Category: NZTekonverse -> Gimp
-
Buster moves to RC1
I have put a 240 GB SSD into the computer that I edit the map mosaics on (in Gimp) which gives me 200 GB of swap file space so that large projects can be handled more readily. I have no actual intention of going beyond 100 layers as in the present projects; it will be…
-
NZ Rail Maps: Optimising Gimp and using 4x4x4 grid for mosaics [4]
Last time I posted I wrote about my experiments rescaling layers in Gimp from 0.4 metres to 0.2 metres pixel spacing and 0.3 to 0.15 metres pixel spacing and seeing how these matched with the NZR station surveys. I am still in two minds about whether to go with 0.2 metres from 0.4 metres source…
-
NZ Rail Maps: Optimising Gimp and using 4x4x4 grid for mosaics [3]
Since last writing on this subject I have further determined that I can scale 0.3 and 0.4 metre pixel resolution background Linz aerial images to double the scale (0.15 and 0.2 metres) and these scales work very well with the 1:4300/4325, 1:5500 and 1:8000 scale Retrolens aerial photos which are the best ones for creating…
-
NZ Rail Maps: Optimising Gimp and using 4x4x4 grid for mosaics [2]
In the previous post in this section I wrote at some length about the use of grid segmentation of Linz base layers that were at resolutions of 0.3 to 0.4 metres pixel size. The grid segmentation being used to rescale these layers to 0.1 metre pixel size and then the original grid references were assigned…
-
NZ Rail Maps: Two different ways to cover a large area in Gimp [4]
Last time I wrote in this series I had been experimenting with the linear and segmented methods of covering a large geographical area in Gimp, such as I do with map mosaics for NZ Rail Maps. In summary the linear method consists of creating a large canvas that can lay out all the tiles in…