PRF: Fix Photomod x-dem files georeference #1077
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rouault
reviewed
Nov 8, 2018
| @@ -608,11 +608,11 @@ GDALDataset* PhPrfDataset::Open( GDALOpenInfo* poOpenInfo ) | |||
| abDemMetadataOk[2] && abDemMetadataOk[3] ) | |||
| { | |||
| adfGeoTrans[0] = adfDemMetadata[0]; | |||
| adfGeoTrans[1] = (adfDemMetadata[1] - adfDemMetadata[0])/nSizeX; | |||
| adfGeoTrans[1] = (adfDemMetadata[1] - adfDemMetadata[0])/(nSizeX - 1); | |||
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is there a check somewhere that nSizeX != 1 and nSizeY != 1 ?
And generally when you do this, it means that the native geolocation is given with respect to pixel centre. So to go to GDAL convention of pixel-corner, you have to apply a half-pixel offset to gt[0], gt[3]
@rouault Thanks for the tip. On this issue, I need to consult with x-dem format developers. And after additional testing, I will let you know. |
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@rouault |
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Thanks! |
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