Hi guys please suggest how can we scale rotate the data using four reference point?
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Would you please show us your CAD case, You may get more than answer.
Imad Habash
This may help - see the second video in this link:
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Hi @ssharma_panindia,
Welcome to the Autodesk Forums.
More details please. Screen shots or even post your drawing.
Dave
Dave Stoll
Las Vegas, Nevada
Hi,
4 in a 3(D) world!?
Do you mean 2 ppints? 2 source and two target point = 4 ?
Use command ALIGN and skip the 3rd point
Sebastian
Sounds like you are looking for a least squares type fit where you have a set of control points and a set of reference points to be "fitted" into the control points. Many years ago I was in the land surveying business and I wrote such a routine, but it was just for points, not entities like LINEs, PLINEs, etc. Do you have 4 control points and 4 reference points? How far different are the control and reference points? Do you want to adjust more than AutoCAD POINTs?
Hi Sachin,
Hoping you have Map 3D or Civil 3D. The Map command ADERSHEET will do what you want.
Dave
Dave Stoll
Las Vegas, Nevada
Thanks for your suggestion for adersheet. we are using adersheet but the data shape is changing, so if it is possible to align the block data align with 4 source and 4 destination point please suggest. so we need rotate, scale the data in block so that shape of the data will not change like align command.
in algin command it takes two source point and two destination point but we want align the block data with four source point and four destination point.
Dear Sir,
What is possible block data align with 4 source and 4 destination point please suggest. so we need rotate, scale the data in block so that shape of the data will not change like align command.
in algin command it takes two source point and two destination point but we want align the block data with four source point and four destination point.
Thanks for your suggestion. I Mean this What is possible to align the block data align with 4 source and 4 destination point please suggest. so we need rotate, scale the data in block so that shape of the data will not change like align command.
in algin command it takes two source point and two destination point but we want align the block data with four source point and four destination point.
Sachin,
"cadstral map in DWG file and ECW file"
"we are using adersheet but the data shape is changing"
Please zip everything together and post what you have.
Dave
Dave Stoll
Las Vegas, Nevada
Dear Sir,
Due to security concern i am unable to send dwg and ecw.
I just want to know can we do align using 4 source point to 4 destination point.
if you could provide lisp file for this concern then it will help me.
What is the relationship of the 4 points in the DWG file to the 4 points in the ECW file? In other words if you draw a polyline through the 4 DWG points and another polyline through the 4 ECW files, could you put the two polylines in a DWG file and post them here?
Are the "block data" you keep referring to actual AutoCAD BLOCKs?
To use four reference points is to admit that the geometry in the two sets of data are not equal.
Distortion of the data set is by using Align improperly in 3D as the data will be tilted.
You should use Align with two points, each with zero Z, to align in 2D and then move the data to a best fit in the Z.
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