@scrim Wasn't it called "CMM"? I think Kurt Wurm a PHD is still around with the BLM who either wrote the program or helped write it and is still working for the BLM. It was a DOS program. It could probably be recoded to run on today's iphone. Write an app, become an instant millionaire. Just remember the guy who gave you the idea.
There is a lot of farm and ranch land in my area. The land was patented in the late 1800 and early 1900's. Using my GPS and i9 processor computer I calculate the sixteenth corners regularly. There is usually an old fence corner 5 or 10 feet away from my super accurate position. How and who in the heck determined that fence corner position over a hundred years ago?
There was indeed a program named CMM. It??s still available and can still be run on a Virtual XP. I??ve been discussing CAPD which is totally different as it??s all AutoLISP. It stands for Cadastral Automated Plat Drafting.
The two were around the BLM for years but never had any overlap in any way. One was DOS originally and the other was LISP which isn??t an operating system. Sorry for any confusion my multiple posts created.?ÿ
Hello,
I'm attempting to write an excel program that will calculate the midpoints in a sectional breakdown. I believe the distance by known coordinates and the associated angular calc could be used. Does anyone know of an existing program or written code, any suggestions would be appreciated.?ÿ
Thank you,
Paul
I'm thinking that such a program could be "disengenious". (Of course, where it's never been surveyed, it's ok. But, I often retrace every corner I an area, before doing anything.)
Retracement, has alot of meaning.?ÿ
Not all parts of the country are as developed as yours. Many of us routinely break down sections for the first time.?ÿ
Many of us routinely break down sections for the first time.?ÿ
Thumbs up
@skeeter1996 it was supposed to be simple squares. Every 40 has a monument within a quarter mile. The idea was the Federal Government would patent all the land then the locals would finish the surveying. It??s not difficult, just run 20 chains in cardinal directions.
Then the technocrats took over and now it isn??t good enough if it isn??t within an 8th of an inch.
I was recently putting together a means of conveyance map for a water system. The idea is to trace how the water gets to the land from the point of diversion at the source of the right. In this case the point of diversion is up on a mountain stream almost in a wilderness area 20 miles away then flows through a ditch from one stream, down the stream to another then to another ditch, into a couple of laterals and finally to the lands I'm concerned with. Imagine the water rights are circa 1881-1885 and all that was built with teams of mules and horses. I believe they could measure out a dinky 1/4 line easily. Those people weren't messing around. ?????ÿ
@scrim Wasn't it called "CMM"? I think Kurt Wurm a PHD is still around with the BLM who either wrote the program or helped write it and is still working for the BLM. It was a DOS program. It could probably be recoded to run on today's iphone. Write an app, become an instant millionaire. Just remember the guy who gave you the idea.
CMM was an all-in-one program that did amazing things.?ÿ BLM All Points just did protracted section breakdowns.
It comes down to having 2 Y=MX+B equations and solving for variables.
XE4 = X of East Quarter, etc
?ÿ
M1 = (YE4 - YW4) / (XE4 - XW4)
M2 = (YN4 - YS4) / (XN4 - XS4)
B1 = YE4 - (M1 * XE4)
B2 = YS4 - (M2 * XS4)
Xcenter = (B2 - B1) / (M1 - M2)
Ycenter = (M1 * Xcenter) + B1
I have a colleague, he knows who he is, who says over and over that he "hates pincushions, and doesn't set them". Yet, he sets pincushions at EVERY SIXTEENTH AND CENTER 1/4 in every section he sees, and notes the "falling" of every monument he finds. When asked why he discards all the previous surveyors work, including mine, he takes great offense, states that both the Manual and board rules require him to set pincushions, and that my work "does not rise to the level of a proper survey". (The manual and rules say no such thing at all) he is butchering my county by farting pincushions all over.
I've seen ONE section that has never been subdivided, and he monuments that one correctly, so I can prove he doesn't "get" retracement, but treats each section as if he is the first, and seems to be baffled why none of the found monuments hit HIS protractor.?ÿ I read this board and once again am assured that I am understanding the difference.
Thanks!
@dave-karoly Actually it was simple trapezoids where the east-west lines were chords and the north-south lines converged. The use of nominal cardinals made treating it as squares for many purposes perfectly acceptable.
But you knew that ????
