[mkgmap-dev] BuildDEMFile
From Frank Stinner Frank.Stinner at kabelmail.de on Wed Nov 15 18:04:44 GMT 2017
Hi Andrzej, please try the last version. The version info is the same, but false! It's from 10.11.2017 I get with builddemfile -O --dem=x.dem --hgtpath=%OSM_DATA%\srtm_zip -l 22.9999208450317 -t 53.0000638961792 -w 0.946884155273438 -h 1.00009918212891 --dlon=0.0016666666666667 --dlon=0.0066666666666667 --dlon=0.013333333333333 BuildDEMFile, Version vom 9.11.2017b, Copyright © FSofT 2017 HGT-Daten lesen ... Höhen für 23° .. 24° / 52° .. 53° eingelesen, Werte 97 .. 215 Höhen für 23° .. 24° / 51° .. 52° eingelesen, Werte 130 .. 293 Höhen für 22° .. 23° / 53° .. 54° eingelesen, Werte 69 .. 230 Höhen für 22° .. 23° / 52° .. 53° eingelesen, Werte 77 .. 219 Höhen für 23° .. 24° / 53° .. 54° eingelesen, Werte 74 .. 246 Höhen für 22° .. 23° / 51° .. 52° eingelesen, Werte 112 .. 304 Einlesezeit 0,3s 3 Zoomlevel Kachelanzahl 8 x 10 (rechte Spalte 121 breit, untere Zeile 25 hoch) Rand links 22,9999208450317°, oben 53,0000638961792°, 0,946884155273438° breit, 1,00009918212891° hoch Pixelgröße 0,0016666666666667° x 0,0016666666666667° Kachelanzahl 2 x 3 (rechte Spalte 79 breit, untere Zeile 23 hoch) Rand links 22,9999208450317°, oben 53,0000638961792°, 0,946884155273438° breit, 1,00009918212891° hoch Pixelgröße 0,0066666666666667° x 0,0066666666666667° Kachelanzahl 1 x 2 (rechte Spalte 72 breit, untere Zeile 12 hoch) Rand links 22,9999208450317°, oben 53,0000638961792°, 0,946884155273438° breit, 1,00009918212891° hoch Pixelgröße 0,013333333333333° x 0,013333333333333° encodiere 88 Subtiles ..... 88 Kacheln encodiert Laufzeit 0,8s The option --mt is not allright. Have you see the runtime? It's the same or a little more then without the option. I haven't still found the cause ot this. I belief, your --xlon idea is not useful. Yes, the point-distance in the hgt's is 1/1200 or 1/3600 degree. But the corner left-top of the TRE can have any value and not only in this grid. Therefore we have normaly to interpolate the value for this corner and for all other points. That means, we nearly ever use interpolated values. Of course, interpolation make the values not better! If you interested you find interpolation algorithm in the function InterpolatedHeight() in HGTReader.cs. It is not necessary, to double the values. Try out and use distances, that looks good for you. Frank --- Diese E-Mail wurde von Avast Antivirus-Software auf Viren geprüft. https://www.avast.com/antivirus
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