This should be simple but as a human being I'm useless and I can't figure it out
I want to create a border around images like the triangles on
Baby steps please, as I said I'm an invalid
This is almost good but I don't want the edges of the triangles to be rounded and I don't want it to come from the center.
If you pick the location as anything other than center it rounds the edges. Anybody know a fix for this?
Then you cant use the stroke function.
What I would do is create your shape with the photo in it (I am going to assume a triangle as that was your example). and make sure it is on a layer on its own. Then duplicate the layer (Ctrl + J). then Ctrl click on the new layer, this will create a selection of your shape. Fill this shape with the colour that you want for your boarder. Then select free transform (Ctrl + T). Now re size the new filled layer by dragging and clicking on one of the corners whilst holding down Shift and Alt (This will constrain the proportions and also "grow" the new shape from the centre of where your original shape was. Finally move this shape layer below your original image layer and hey presto you have a boarder with sharp corners.
That's what I mean, I don't want it to come from inside. This covers up part of the picture I'm using.
You should be able do do what you want using CS6 and CC shape layers no fill and new stroke support with the right setting to get around the normal rounding thhat happens with outside strokes in Photoshop.
John this was super helpful, but if I resize with the free transform tool while holding alt+shift the triangle remains center but the bottom part of the triangle outline gets bigger than the rest.
I don't understand why this happening, the triangle is exactly the same on all lengths...
It's probably ridiculously simple, thanks for all the help guys. Here's some screenshots I took
This is using alt+shift from the corner edge, do you see how the bottom edge of the triangle is bigger than the other sides?
I see my screen capture did not help. Look at your own screen capture your transfroming from the center of the layer's bounds not the center of the triangle, Look at my screen capture and note how I moved the center point of the transform to the center of the triangle.
Did you take trig and geometry in school? If you bisect the angles in a triangle the bisecting lines will meet in the center of the triangle. Tried to show that with the guide and two white lines I draw for you. Also only equilateral triangle will transform evenly in all three directions.
Message was edited by: JJMack
I'm 73 you will get that math soon hopefully you also get to 73 some day take your time. By 15 I had to take it in school.
Equilateral triangle have three equal length sides and all three angle are 60degree only these will expand with equal size borders added on the three sides.. Some triangle will expand with two equal size borders other all the borders will be different sizes. Symmetric things like squares and circles expand evenly.
You may find this helpful http://www.mathsisfun.com/geometry/symmetry-line-plane-shapes.html
I drew them with the brush tool. Set the brush to one pixel move the cursor to end point of line click once move cursor to other end the use shift click Photoshop will draw straight line. the blue line are guide lines I set using %. to precisely layout the guide lines You can use other tools for drawing lines the line too for example. The Pen tool Photoshop has many tools and there are often more the one way to do thing in Photoshop.
Photoshop can also align things for you and snap points to guide line. Photoshop will also constrain thing for you to the current aspect ratio or to equal like Squares circles symmetric polygons. Draw a equilateral triangle shape layer. Do a select all to select the whole canvas target the shape layer and use menu layer>Align layers to Selection>vertical center the repeat to horizontal center to center triangle. Or use the aligning icons in the option bar if there. More the one way to do many things,
Interesting thread JJ
If you have Snap turned on, and copy the triangle, you can move the copy to snap edge to edge with the first triangle. That gives you reference points to draw your intersect lines between. The move the copied triangle to another edge, and repeat. However it's kind of clunky, so better to lay some guide lines that intersect the centre, and start from that intersect with the polygon tool using the Alt key. Only works with an equilateral triangle of course.
Polygons with an even number of sides will have a bounding box with a center point in the center of the polygon, so no problem.
I am afraid I have not read every word in the thread, so may be off at a tangent.