Hi,
First of all your jpeg files need to be georeferenced. Jpeg files are most
often georeferenced with world files which are named as .jgw. Sometimes they
are named as .tfw, even that name is actually reserved for tiff files. And
Mapserver understands also world files named as .wld.
If your images are georeferenced you can continue to building one single layer
from all of your images. It is done with gdaltindex utility program.
Gdaltindex is building a shapefile that records the extents of all the images
to be indexed.
Third step is to make a new raster layer that is using the shapefile index as a
catalogue for finding the actual image files that needs to be opened when user
is requesting a map from a certain area.
This should be enough to show you images as a single layer. It would be a
benefit to know the projection where the images are because otherwise they
cannot be reprojected. And for optimising performance it may be good to
convert jpeg images to tiffs, but you can just start from jpegs and see if you
are happy with the speed.
In conclusion:
1. Check georeferencing and projection, gdalinfo program is a good help in this.
2. Make tileindex with gdaltindex
3. Make a new raster layer in mapfile referring to just created tileindex file.
-Jukka Rahkonen-
________________________________
Lähettäjä: [email protected]
[mailto:[email protected]] Puolesta Muizudeen Kusimo
Lähetetty: 20. tammikuuta 2009 10:45
Vastaanottaja: [email protected]
Aihe: [mapserver-users] Need Help with Custom (Raster) Data as Input
Hello Everyone,
I am new to MapServer, however I am working on an application that is
similar to Google Maps albeit with my own custom maps.
The problem is:
1) I have several maps mostly in .jpeg format and would like to use
them as Data Inputs for this Web Application. I can't seem to get it done
correctly. Must I convert these maps to a SHAPEFILE i.e. .shp or what? If so,
how do I convert them?
My development platform is:
- Microsoft Windows XP
- Ka-Map
- MapServer (MS4W)
Thanks.
NB: I am re-reading the documentation for a solution.
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