3 Replies Latest reply: Aug 22, 2010 5:09 AM by jt77474 RSS

    How to export my vector lines at different sizes

    jt77474 Community Member

      Hi. First post here. I have been using photoshop and illustrator at my university. I need some help exporting my graphics at known pixel dimensions. Illustrator seems to give the cleanest results, and the stroke antialiasing is much better than in photoshop, so I'm keen to do my final export from illustrator.

       

      I have attached four images to show what I'm doing.

       

      1 - depth map, this is rendered from a 3D terrain package. White = far, black = near

      1.jpg

       

      2. Find edges in depth map - the values in this image correspond to the depth discontinuities in number 1. High values = large depth edges

      2.jpg

       

      3. Import into illustrator - do a live trace, stroke, set threshold. Get some nice vectors

      3.jpg

       

      4. Convert to live paint, set stroke width. Antialiasing is great

      4.jpg

       

      OK. My questions are:

       

      a) How do I export a jpg at a fixed size, in this case 640 by 360? I want my original depth maps to be much higher resolution so I get quality vectors, but I want to export the final image at 640 x 360. I haven't figured out how to resize the original to those dimensions

       

      b) Are there different antialiasing styles to mess around with? When I zoomed in on a microsoft word screenshot I noticed the antialiasing was in colour around black text. I wonder if that could be useful to me

       

      c) If you have any better techniques for vectorising and then rasterising for display these mountain lines, please let me know.

       

      Thank you!!!

        • 1. Re: How to export my vector lines at different sizes
          Jacob Bugge CommunityMVP

          jt,

           

          a) As long as you keep the original vector artwork, it is beyond resolution (infinitely scaleable). To get a 640 x 320 px JPEG, set the reolution (as Export option) to 640/W, where W is the Width in inches; or similarly for height. If you want an RGB JPEG, you may Save for Web & Devices and just set the Image Size to 640 x 360.

           

          b) Not unless introduced in the latest version(s).

          • 2. Re: How to export my vector lines at different sizes
            Wade_Zimmerman Community Member

            Jacob Bugge wrote:

             

            jt,

             

            To get a 640 x 320 px JPEG, set the reolution (as Export option) to 640/W, where W is the Width in inches; or similarly for height.

            I definitely do not know of this option though it would be good to have such a setting.

             

            But what you have do if you are not using Save for Device and Web is to actually make a copy of the art turn off the visibility of the original art
            then resize the copy to your desired dimension either width or height, in this case probably width.

             

            Then make a new art board, holding the shift key down allows you to make one within the bounds of another artboard.

             

            Then double click the artboard tool to enter the dimension of you desired jpeg

             

            then reposition the art in the artboard you just made and then export to jpeg using the Use Artboard option and selecting that artboard.

             

            So if you set the artboard to 640x360 pixels that is what you will get.

             

            Screen shot 2010-08-20 at 10.02.22 AM.png

             

            Screen shot 2010-08-20 at 10.02.46 AM.png

             

            Save for Device and Web is easier there you can enter dimensions

            • 3. Re: How to export my vector lines at different sizes
              jt77474 Community Member

              Thank you for your helpful replies