12 Replies Latest reply: Jul 28, 2012 4:51 AM by emil emil RSS

    corner angle value measurement

    inquestflash Community Member

      hello illustrators.

       

      i would like to know how to measure the angle of this shape/radius i think it might be

      is there a corner angle i can see using some tool.

       

      thank you.

       

      u2aa.jpg

        • 1. Re: corner angle value measurement
          Steve Fairbairn Community Member

          Draw a horizontal line from the top left corner. Keep it selected.

          With the Rotate tool click on the left end of your line and drag until Smart guides tell you that your line coincides with the slanting top edge of your trapezium. Smart Guides will say "path" or "anchor".

           

          Now double click on the Rotate tool's icon and you will see the degree rotated in trhe dialogue box.

          Press Cancel unless you want to rotate again.

          • 2. Re: corner angle value measurement
            JETalmage Community Member

            1. SmartGudes on. (Because it's the only reliable snap feature.)

            2. Line Tool: Draw a line from one end of the diagonal edge to the other.

            3. Delete.

            4. DoubleClick the Line Tool. The dialog will tell you the angle & length of the path you just drew.

             

            JET

            • 3. Re: corner angle value measurement
              emil emil Community Member

              In both cases suggested by Steve and Jet, the Smart Guides label shows the angle while using the Rotate or Line tool, so double clicking these tools is not necessary unless you want to copy the value.

              Also, with the Rotate tool you don't have to draw additional line. With nothing selected, click on one end of the line you want to measure to define the center of rotation, then click and drag from any place of the line towards the intersection with the center of rotation until the Smart Guides show the intersecting line. In this case the Smart Guides do not show the label but the Info panel will show the angle and double clicking the Rotate tool in the Tools panel will have it.

              Here are two snapshots of measuring the angle with the Rotate tool when nothing is selected. The red arrows I painted over to show where the second click with the Rotate tool could be and the dragging direction

              Untitled-1.jpg

               

              edit: Also you can check the measure tool and see if you like it. It is under the Eyedropper tool on the Tools panel. The problem is that it doesn't indicate snapping and I'm not sure if it actually does because dragging its end point appears to be snapping but without indication it could be coincidence.

              • 4. Re: corner angle value measurement
                Steve Fairbairn Community Member

                double clicking these tools is not necessary unless you want to copy the value.

                True, but if you want something less ephemeral than the Info panel or the Smart Guides readoff, the dialogue gives you something you can hold on screen while you are writing it down. I always have a tatty piece of paper to jot on while I'm working. Maybe not absolutely necessary but I have got used to working that way. Something to do with old dogs and new tricks :-)

                • 5. Re: corner angle value measurement
                  emil emil Community Member

                  I just check to see, and realized that the Info panel behaves in the same way as when checking by double clicking the Rotate tool. Even if you change tools and return to the Rotate tool the angle still stays until the Rotate tool is used again.

                  • 6. Re: corner angle value measurement
                    Steve Fairbairn Community Member

                    So it does :-)

                    But I still prefer to see the angle large and clear in the dialogue box.

                    • 7. Re: corner angle value measurement
                      emil emil Community Member

                      Me too :-)

                      Even though I'm using a digital pen and have one of its buttons programmed for double click, I still prefer keyboard shortcuts than mousing . Pressing R to get the tool if not already in use and pressing Enter gets the Rotate dialog. and Escape closes it which is not more difficult than Ctrl + F8 to get the Info panel.

                      • 8. Re: corner angle value measurement
                        inquestflash Community Member

                        Greetings Gentlemen.

                         

                        i would to ask the following.i have made 2 examples.one is Jets and one technique is from collected suggestions and tutorials.

                        i am measuring the angle on which the line is angled upon and im getting 2 different results.

                         

                        the 1st one is jets technique and the second one is the  way im trying to find the angle.

                        but the result is not the same!although the angle is the same.

                        the 2nd way which i got the 45d is simple by making a line and using the rotate tool to give me the angle rotation of the magenta line.

                         

                        U2A.jpg

                        • 9. Re: corner angle value measurement
                          Jacob Bugge CommunityMVP

                          inquestflash,

                           

                          315 = 360 - 45. Just two ways of saying the same thing, as measured anticlockwise and clockwise, presuming you start with a horizontal line and end with the slanting line. The former is the one used by the Rotation Tool and Object>Transform, unless you type -45.

                          • 10. Re: corner angle value measurement
                            tromboniator Community Member

                            Angles.png

                             

                            Edit: Hi, Jacob. Nosed me out again.

                            • 11. Re: corner angle value measurement
                              Jacob Bugge CommunityMVP

                              Albeit by little more than a muzzle hair, Peter.

                              • 12. Re: corner angle value measurement
                                emil emil Community Member

                                And to repeat what was already said with an example, draw the line holding Shift dragging from left to right and the angle will show 0° then draw the same line in the opposite direction dragging from right to left and the angle will show 180°. Make the same test horizontlay and you get 90° and 270°.

                                Also have in mind that the Rotate tool repots the degrees differently than the Line tool, with plus and minus up to 180°. For example, the red arrow Tromboniator showed you on your image if drawn clockwise from the horizontal line down to the slanted line, the angle will show -45° and not 315°