How to Create a Curved Picture

[Arthurbear]

Hi

Sorry pretty new to Photoshop and sure its easy to do, I have a landscape picture I want to print to fit a curved Lamp shade, So the image needs to be like an horseshoe shape, Using Warp and Arc does seem to work. The shade if 30cm around the top 88cm around the bottom and has 13cm length from top to bottom edge. Thanks

[c.pfaffenbichler]

13cm connecting the two rings or 13cm vertical height? 

[Arthurbear]

Hi

Thank you for a reply , Its 13cm from ring to ring down the side of the shade, Its a landscape picture im working from.Thanks

[c.pfaffenbichler]

The previously posted sketch assumed 13cm height, so it would be off for the actual object, I had not seen your post in time. 

[c.pfaffenbichler]

Sorry, I had not seen your reply in time. 

[Arthurbear]

Hi.Thanks again for your help but how to I make my Picture that shape in the first instance

[c.pfaffenbichler]

If the Arc Warp should prove problematic I would recommend Filter > Distort > Polar Coordinates. 

[c.pfaffenbichler]

I have not done the geometry anew but this should help illustrate how one can use Polar Coordinates for the distortion. 

[Arthurbear]

That looks like it Thank you , I dont supppose you can give me a step by step Idiots guide could you? Thank you again for your help

[c.pfaffenbichler]

I recommend to always start with a square format for this. 

And then, once you figured out the geometry and made sure it fits (by printing, cutting and making a dummy), just move and scale the image as a Smart Object in the Smart Onject and save that after the changes and repeat this until it fits the drawing. 

You could calculate it, too, but that seems almost more trouble to me. 

[lambiloon]

Hi shows a final effect picture which you want to get....regards

[davescm]

Calculate and build a pattern shape first. You can do that by drawing up a cone and using a bit of trigonometry. So you will get an outer circle of radius 19.72cm and an inner circle of radius 6.72cm. Out of that take a piece of 104 degrees arc. That is the "horseshoe " that you need to construct using paths to make a shape which you can use as a guide.

Once done add your image as an embedded smart object and warp it into shape using Edit transform warp. First get the corners aligned then add additional segments to align the centres.

Dave