What's the real purpose of this job, Andrew? On 22/03/13 19:24, Andrew Buck wrote: > After several days of wrangling with QGIS to properly orthorectify > some Nextview imagery we got for the Congo, the job is finally set up > and ready to be worked on. > > Please pay special attention to the instructions on this one. Make > sure you read and understand the all the info on the "Description" and > "Workflow" tabs in the task manager. There are two sets of imagery, > the black and white one should be used for creating and aligning > objects, the color one is a bit newer and should be used as a final > check in the validation step to update for any changes which occurred > since the black and white image was taken. Also note that because > there is a lack of traces or existing data in this area, the images > are not perfectly orthorectified so there will be some error in > position which changes as you move across the image. The error should > be fairly small though (I estimate 10 to 15 meters for most areas) so > aligning to the black and white image is ok. The only exception to > this is along the eastern edge where there is already high res Bing > imagery which is probably better aligned and data in this region > should be aligned to that image. > > Thank you to user JGC for helping me get the imagery rectified and for > setting up the tileserver afterwards. > > Here is the link to the task manager job. > > http://tasks.hotosm.org/job/212 > > -AndrewBuck > > _______________________________________________ > HOT mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/hot >
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