Hi @cpogueGEFC9
Your drawing environment which is your modelspace, has adopted (inherited) the units of feet. It has to. It must. It's suppose to. If it doesn't, then your coordinates won't be tied into the units of your drawing. Geospatial coordinates are always, without exception, one of the following:
- Feet
- Meters
- Degrees
Since you've assigned Arizona SPCS Feet, then your coordinates will reference (or tie into) the Arizona State Plane coordinate system's virtual grid, which in your case, has units of FEET. If you were to draw a point representing a fire hydrant, then your x,y coordinates might be
x=671,455.9356
y=885,890.4000
If you are drawing in INCHES then your equivalent geospatial position would be
x=8,057,471.23
y=810,630,684.8
If you do the math, the fire hydrant would need those INCH coordinates divided by a factor of 12 to convert from INCHES to FEET.
Since you're dealing with geospatial position, the units will need to divided by 12. If you, or Map3D, didn't do the conversion, then your fire hydrant will position itself using big, super big, COORDINATES that will put the hydrant in Colorado. Why? Because Map3D will use those inches and treat them as though they were feet.
If, however, the coordinate system used units of INCHES instead of FEET, then you wouldn't have to do anything, but since it's using FEET, you'll need to adjust your Dim Style accordingly.
You can adjust your Dim Style to reflect either Arch Inches or Engineering Feet (see image below, Phoenix Sky Harbor International Airport).
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The red dims are using units of feet. The blue using architectural units of inches.
Same drawing, same measured distance, same assigned coordinate system.
Blue and Red dims are DIFFERENT dimension styles and despite the difference in style, the length is exactly the same.
The title of you post should really be How to make dimensions reflect architectural inches instead of FEET when I assign Arizona SPCS Feet.
Chicagolooper
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