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Opened 8 years ago

Last modified 6 years ago

#4350 new enhancement

PicLayer: Import of raster images (*.map, *.kal, *.geotiff) and calibration information (.wld, .tfw)

Reported by: cantece Owned by: team
Priority: normal Milestone:
Component: Plugin piclayer Version:
Keywords: PicLayer, images Cc: chunter952@…

Description (last modified by Larry0ua)

Hello,
is it possible for PicLayer to import other calibration formats and georeferenced images (like kal, cal, map, geotiff ...)?
cantece

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Change History (9)

comment:1 Changed 8 years ago by anonymous

+1

comment:2 Changed 8 years ago by cantece

is it possible to make the increments of the editing (size, angle)smaller and more precise?

comment:3 Changed 8 years ago by anonymous

Summary: PicLayer: Import of raster images (*.map, *.kal, *.geotiff)PicLayer: Import of raster images (*.map, *.kal, *.geotiff) and calibration information (.wld, .tfw)

It really would be helpful to be able to import several calibration information - e.g. in wld or tfw format (the DOP in Bavaria come with that information).

comment:4 Changed 8 years ago by HamishB <hamish_b@…>

i.e. support GDAL+OGR formats (www.gdal.org)

see also #2372

Hamish

comment:5 Changed 8 years ago by DiverCTH <chunter952@…>

Cc: chunter952@… added

+1

comment:6 Changed 8 years ago by stoecker

Component: PluginPlugin piclayer

comment:7 Changed 6 years ago by lists@…

+1 - sitting on a somewhat complex datasource for Brazil using BSB/KAP, have found tools to convert it to .tif (non-Geo) and .png, but redefining the position calibration is a PITA.

comment:8 in reply to:  7 Changed 6 years ago by HamishB <hamish_b@…>

Replying to lists@…:

+1 - sitting on a somewhat complex datasource for Brazil using BSB/KAP, have found tools to convert it to .tif (non-Geo) and .png, but redefining the position calibration is a PITA.

Use "gdalwarp" from gdal.org to make a geotiff from a BSB map. This will convert the embedded ground control points (GCPs) into "real" georeferencing information.
it is not mandatory, but for best results try to output to the map projection the chart was made in.

Hamish

ps- if you haven't found it yet, www.OpenCPN.org is absolutely brilliant for viewing those BSB files. do check it out.

comment:9 Changed 6 years ago by Larry0ua

Description: modified (diff)

if anyone can provide algorithm to convert specified formats to simple affine transformation matrix, it would be best way to close this issue.

by the way, world file is supported in current PicLayer

.map (ozi): #4949

.kml (GoogleEarth): #5451

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