Hello,
I do not understand how to use my SMI software to transform coordinates. I have created a fictional job to illustrate my predicament. I have created points in my SMI card for two centerline PCPs, and four property corners. These are calculated points based on a plat. When I arrive at the job I set a nail across the street from the property, and occupy it.
Calculated Points:
Point Northing Easting Description
100 5000.0000 5000.0000 PCP
101 5000.0000 4400.0000 PCP
102 5025.0000 4900.0000 PROPERTY CORNER
103 5025.0000 4840.0000 PROPERTY CORNER
104 5105.0000 4840.0000 PROPERTY CORNER
105 5105.0000 4900.0000 PROPERTY CORNER
I call the nail point number 2, and give it coordinates of 10000.0000 northing, and 10000.0000 easting. I backsight point number 101 with a backsight azimuth of 315d 00' 00". I store point number 101 as point number 1. I continue storing the remaining calculated points as side shots.
Surveyed Points:
Point Northing Easting Description
1 10290.1000 9709.9000 PCP N&D
3 9881.7000 10149.3000 PCP N&D
4 9968.0300 10093.1800 1/2" IRC
5 10008.8800 10049.2500 1/2" IRC
6 10067.5100 10103.7000 1/2" IRC
7 10026.6100 10147.6000 1/2" IRC
Now I want to compare my surveyed points with my calculated points. My random point file (points to be transformed) is entered as 1.7 (range of points). In the transformation program I enter point number 101 as the old point (rotation point), and point number 1 as the new point. I enter 315d 00' 00" as my rotation angle. I get incorrect results after running the program. What am I doing wrong?
Regards,
Mark
Thoughts