I'm using the ArcGIS Online - via the DC Data Hub - and trying to print a pdf or jpg to a SCALE that I can overlay into AutoCAD for my M.Arch Thesis. The printing isn't an issue, it's the scaling and unit conversion.
Here is an example of my settings: (See below)
Apparently the width and height is in pixels... not inches. So I first create a sheet/map size 5' x 5' (60"x60"), at 96dpi which equates to 5760 pixels wide x 5760 pixels high. I don't think I have a problem here either. Unit conversion is accurate to the print sizes given. Again it is the scale of the map.
Ultimately I need to have a 150" x 150" Map. Similar to this aerial composite I did in Photoshop.
Then I set the scale to 1000. - But I have no idea if this is feet, pixels, miles and to what ratio?
When I import the image into AutoCAD and scale it up 1000 times - SEE RIGHT IMAGE - , it DOES NOT match up at all.
The Left Image is me doing a reference scale by eye - which is not entirely accurate.
Can anyone make sense of this for me? Is it the DC Data Hub that causes this? Or is it ArcGIS Online?
Is there a special unit conversion I am missing to properly scale the prints in AutoCAD?