[mkgmap-dev] Automatic block-size setting

2018-01-17 Thread Steve Ratcliffe
Hi The branch auto-block contains changes to automatically find a suitable value for the --block-size option. Previously the default block size was almost always OK, but with the DEM changes the tiles are larger and a larger block size is sometimes required. All kinds of .img file (tiles, overv

Re: [mkgmap-dev] Automatic block-size setting

2018-01-18 Thread Gerd Petermann
Gesendet: Mittwoch, 17. Januar 2018 23:41:08 An: mkgmap development Betreff: [mkgmap-dev] Automatic block-size setting Hi The branch auto-block contains changes to automatically find a suitable value for the --block-size option. Previously the default block size was almost always OK, but with the

Re: [mkgmap-dev] Automatic block-size setting

2018-01-20 Thread Andrzej Popowski
Hi Steve, I have compiled several maps with r4070 without even noticing, that it include your new code. I think it means, that you have done a good work, thanks! I have looked at block sizes and all is reasonable. Tiles are usually 2k or 4k, ovm_* are 512 or 1k, MDR are 8k or bigger. I guess

Re: [mkgmap-dev] Automatic block-size setting

2018-01-20 Thread Steve Ratcliffe
Hi Andrzej I have looked at block sizes and all is reasonable. Tiles are usually 2k or 4k, ovm_* are 512 or 1k, MDR are 8k or bigger. I guess you have set some preference for bigger blocks in case of MDR. I read your post where you noted that often bigger block sizes lead to a smaller file, s

Re: [mkgmap-dev] Automatic block-size setting

2018-01-20 Thread Andrzej Popowski
Hi Steve, it was my first impression, that MDR got only big blocks, but you are right, there are all sizes used. Now that I have looked more carefully, I see some inconsistency. MDR img has always the same structure, I would suspect, that block size increase with file size, but it is not true.