scale a jpeg image

[Sofia1234]

Hello.
I am a student of architecture, I should scale a jpeg image of a plane with autocad of which I know only one side of a room (8 meters). How can I do that? what are the steps I have to do on autocad so that the side is 8 meters long?

 

[MassiVonWeizen]

select the image and use the scale command
as base point selects the end of the wall 8 long
then choose the scale option with reference
as first point back to select the previous point
as second point select the other end of the wall 8 long
as reference type 8

with the command measures with the linear quota command verify that the length is the desired one

 

[MassiVonWeizen]

a similar discussion, but there are others enough to seek, is this

Importare in scala un PDF da ricalcare

Salve. E' il mio primo messaggio e spero di non aver sbagliato. Solitamente so che c'è una sezione di presentazione, ma non l'ho trovata,, scusate nel caso, rimedierò subito. Intanto però vorrei chiedere delle informazioni. Devo svolgere un'ultima parte di esame, che consiste nel ricreare in...

www.cad3d.it

 

[Sofia1234]

select the image and use the scale command
as base point selects the end of the wall 8 long
then choose the scale option with reference
as first point back to select the previous point
as second point select the other end of the wall 8 long
as reference type 8

with the command measures with the linear quota command verify that the length is the desired one

Thank you so much!! !

 

[Roberto Paolillo]

and to change the x, y size of a jpg image independently, so you can scale a photo of a planimetry that is not?

 

[Tristus]

and to change the x, y size of a jpg image independently, so you can scale a photo of a planimetry that is not?

then it would be a question of distorting an image.
at this point it is preferable to use photoshop.
or first open the image of the planimetry that is correctly scaled, then open the image with the planimetry to be distorted. translates the image of the planimetry that is not scaled above the image with the correct planimetry and distorts the incorrect one giving transparency to the level of that to be distorted to better operate the distortion, with precision.
(menu' modification/transform/distorci).

I don't think autocad can be done directly on the image.
unless, perhaps, you create a plan on which to apply the photo in the spread channel and operate the distortion with the mapping coordinates.
I don't have autocads for rendering, so I can't say if you have enough powerful mapping tools to do that. with 3ds max is very easy to do, with autocad I don't know.
in any case 3ds max operates the distortion not on the photo directly but on its projection in the plane. the original photo is not affected. the same would happen with autocad. therefore it is preferable to distort the planimetry with photoshop and then insert it on autocad once correct

 

[Tristan]

and to change the x, y size of a jpg image independently, so you can scale a photo of a planimetry that is not?

you can do it with raster design

Set di strumenti Raster Design | AutoCAD 2024 | Autodesk

Il set di strumenti AutoCAD Raster Design consente di modificare i disegni digitalizzati e di convertire le immagini raster in oggetti DWG con strumenti di vettorizzazione avanzati.

www.autodesk.it

 

[Tristus]

you can do it with raster design

raster design is included in the new autocad 2023.
The features are interesting. we hope you can have a plug in for the least recent versions of autocad.

 

[GP.]

and to change the x, y size of a jpg image independently, so you can scale a photo of a planimetry that is not?

creates an image block and then changes the x or y scale