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How do I get photos and data to be on same scale

I normally work in international feet for horizontal dimensions and survey feet for vertical.  The images I use are SID files that are in meters.  IN AutoCAD I can set my system for international feet, UTM Zone 13.  I can import the SID's maps as meters and it all works.  I can get the same items into ProgeEarth, but they are all displaying in their own scale and not to my system setup.
asked 1 year ago in progeEARTH by Tjh1000 / Level: CAD Student (58 points)

1 Answer

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progeCAD is a vector based system. Thus when you draw a line it is defined as a line, not individual pixels as graphic files are. Thus, when you measure a known distance on a graphic file there is no guarantee that the distance will be the correct distance.

With that said, after researching SID files I am not sure if the statement above applies to them.

Regardless, if a file is drawn in Metric and you wish to have the file represented in Customary Units (feet and inches) you will need to do a conversion multiplying or dividing by 24.4 to get the correct representation in the opposite unit.

After inserting a graphic and finding it an improper scale, you can get the correct scale by measuring something that is a known distance. You can then divide that actual known distance by the actual distance as measured. Then multiply the distance measured by the result. Using the scale command window the graphic in your drawing and use the final result of your calculation to scale up or down.

Let us know if this is not the answer you were hoping to get in the comments section of this post.
answered 1 year ago by Scott H / Level: Engineering Manager (5,713 points)

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