I am new here, and i am new with arcMap. I created a Mosaic raster dataset. (Digital elevation model, 90m resolution). I would like to add some datapoints from a .csv sheet. (Longitude and Latitude, ca. 100 000 points). my problem is, the points are all on a different scale (they look like 1 point, if i zoom in then they differ)
Dose some one now where the problem is? Here the Screenshots to give a better look.
This looks like a projection issue. What projection & Datum is the DEM using? You need to try and match the two datasets. Are you using Lat/Long data to add your points from the csv file? If so you may need to define the projection information when adding them.
I'm no expert on projections because I don't have to deal with them very often.
But perhaps this helps and gets you on the right track. I'm sure someone else could chime in and be of more assistance.