Have you ever been set the task of creating a shape that needs to have accurate measurements? If it's a square or a rectangle, you can just set the document to the requested size. However, if it's a less equilaterial shape, this isn't so easy. Here is a tutorial that helps you create an aethestically odd shape. Stage 1: Set your canvas size to at least the largest measurement of your shape. In this case, the largest length was 580mm, so an A1 canvas shape would be sufficient.
Here is a very useful method of adding singular cut outlines for complicated shapes, specifically used in sticker-creating scenerios... Before you start manipulating your image, copy the photographic layer by dragging it into the "create new layer" icon. Select the copy layer. Click on the drop-down menu of the "Image Trace" tab. Then select the "Silhouettes" option. Next, press the "Expand" tab, which will make the image more editable. Change the outline/fill settings on the