I have several DWGs, all of which have not been spatially coordinated, however each has 3 set points with an annotation referring to the National Grid X&Y.
I am essentially trying to understand if I can take these 3 points and assign the National Grid coordinates provided as the annotation?
Use AffineWarper with Control input as 3 lines with first vertex in your original location and second vertex at the specified location from annotation.
Thanks! - Most appreciated for your reply.
I have taken this and attempted it myself. My understanding is that I need to create 3 lines representing the offset of the 3 XYx from where they are currently being drawn to the exact location. I then input this linear feature in as the "Control".
However there doesn't seem to be an corrected output?
It may be the fact that the DWGs I am dealing with are actually linear (I am looking at moving building flood plans) - example below.
Thanks! - Most appreciated for your reply.
I have taken this and attempted it myself. My understanding is that I need to create 3 lines representing the offset of the 3 XYx from where they are currently being drawn to the exact location. I then input this linear feature in as the "Control".
However there doesn't seem to be an corrected output?
It may be the fact that the DWGs I am dealing with are actually linear (I am looking at moving building flood plans) - example below.
Can you provide some sample data?
Maybe you have some weird feature types that don't get processed.
DWG attached. I've had to remove most of the data, but should give you an idea.
Thanks again.
Can you provide some sample data?
Maybe you have some weird feature types that don't get processed.
Apologies. I keep forgetting to "Reply" rather than to create another comment. DWG attached below
DWG attached. I've had to remove most of the data, but should give you an idea.
Thanks again.
I looked at your sample data. The destination coordinates are wrong. I can't get something normal even manually. I don't think you are trying a Mobius inversion 😃
AffineWarper assumes a 3D operation and needs 4 sets of points. You can try RubberSheeter or figure out the math and do Offseter, Rotator and Scaler.
But first, get some correct data.
I looked at your sample data. The destination coordinates are wrong. I can't get something normal even manually. I don't think you are trying a Mobius inversion 😃
AffineWarper assumes a 3D operation and needs 4 sets of points. You can try RubberSheeter or figure out the math and do Offseter, Rotator and Scaler.
But first, get some correct data.
Thanks. I modified the original DWG to ensure it sits in the correct location @ OS, so just a simple extraction workbench.
Thanks again :)